"CODE","FEN"
"Ruy Lopez: closed, Balla variation","r1b1k2r/2q1bppp/p2p1n2/npp1p3/P2PP3/2P2N2/1PB2PPP/RNBQR1K1 b kq -"
"Scotch: Meitner variation","r1b1k2r/ppppnppp/2n2q2/2b5/4P3/2P1B3/PPN2PPP/RN1QKB1R b KQkq -"
"KP: Nimzovich defense, Marshall gambit","r1b1kbnr/ppp1pppp/2n5/3q4/3P4/2N5/PPP2PPP/R1BQKBNR b KQkq -"
"QGD: Albin counter-gambit, Balogh variation","r1b1kbnr/ppp1qppp/2n5/4P3/2Pp4/5N2/PP1NPPPP/R1BQKB1R w KQkq -"
"Evans gambit declined, Cordel variation","r1bqk1nr/pppp1ppp/1bn5/4p3/1PB1P3/5N2/PBPP1PPP/RN1QK2R b KQkq -"
"Four Knights: Spanish, classical defense *","r1bqk2r/pppp1ppp/2n2n2/4p3/1bB1P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"QGD Slav: Krause attack *","r1bqkb1r/1p2pppp/2n5/p1Pp4/4nB2/2P2N2/PP2PPPP/RN1QKB1R w KQkq -"
"Ruy Lopez: open, 8.de","r1bqkb1r/2p2ppp/p1n5/1p1pP3/4n3/1B3N2/PPP2PPP/RNBQ1RK1 b kq -"
"Benko gambit: Nd2 variation *","r1bqkb1r/pp1npppp/2n5/8/2Pp4/B2P1NP1/4PP1P/RN1QKB1R w KQkq -"
"Benko gambit: fianchetto variation *","r1bqkb1r/pp2pp1p/2n2np1/8/2Pp4/B2P1NP1/4PP1P/RN1QKB1R w KQkq -"
"QGA, Bogolyubov variation *","r1bqkb1r/pp3ppp/2n2n2/2Ppp3/8/P4N2/1PP1PPPP/RNBQKB1R w KQkq -"
"Sicilian: Najdorf *","r1bqkb1r/ppp2ppp/2n5/3np3/8/P2P1N2/1P2PPPP/RNBQKB1R b KQkq -"
"Ruy Lopez: Berlin defense, open variation","r1bqkb1r/pppp1ppp/2n5/1B2p3/4n3/5N2/PPPP1PPP/RNBQ1RK1 w kq -"
"Sicilian: accelerated fianchetto, modern variation","r1bqkbnr/pp1ppp1p/2n3p1/8/3NP3/2N5/PPP2PPP/R1BQKB1R b KQkq -"
"Scotch game","r1bqkbnr/pppp1ppp/2n5/8/3NP3/8/PPP2PPP/RNBQKB1R b KQkq -"
"Scotch: Lolli variation","r1bqkbnr/pppp1ppp/8/4p3/3nP3/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"QGA: classical, Smyslov variation *","r1br2k1/pp2qppp/1bn1pn2/3p4/1PP5/P2BPN2/1B1N1PPP/R2QK2R b KQ -"
"Sicilian: Dragon, classical, Zollner gambit *","r2q1rk1/ppp1b1pp/2n1b3/3n1p2/4p3/1QNP1NP1/PP2PPBP/R1B2RK1 w - -"
"King's Indian: Samisch, orthodox, 7.Nge2 c6 *","r2qkb1r/pp2n1pp/2n1bp2/2ppp3/4P3/2PP1NP1/PP3PBP/RNBQ1RK1 b kq -"
"Sicilian: Sveshnikov variation *","r2qkb1r/ppp2ppp/n7/4p3/1P1nPP2/P1NP4/5P1P/R1BQKB1R b KQkq -"
"Nimzo-Indian: Spielmann, San Remo variation *","r3kb1r/pp1bpppp/1qn2n2/1Bp5/2N5/2N1P3/PP1P1PPP/R1BQK2R b KQkq -"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 *","r3kb1r/pppq1ppp/2n5/3np3/6b1/2NPPN2/PP2BPPP/R1BQK2R b KQkq -"
"French: MacCutcheon, Lasker variation, 8...g6 *","r3kbnr/p1pb1ppp/2p5/3pN1q1/3Pp3/4P1PP/PPP2P2/RNBQK2R b KQkq -"
"KGA: Lolli gambit, Young variation *","r4rk1/ppp3pp/2n1bq2/4pP2/8/5Q2/PPPP1K1P/RNB2BNR w - -"
"Scotch gambit: Hanneken variation *","rn1q1rk1/pb3ppp/8/1Bb5/4N1n1/5N2/PPPP1PPP/R1BQ1RK1 b - -"
"Grunfeld defense: Smyslov, main line","rn1q1rk1/pppnppbp/6p1/8/3PP1b1/1QN1BN2/PP3PPP/R3KB1R b KQ -"
"QGD: Albin counter-gambit, Lasker trap *","rn1qkbnr/pp1b1ppp/4P3/1Bp5/4p3/8/PPP2PPP/RNBQK1NR b KQkq -"
"King's Indian: fianchetto, Kavalek (Bronstein) variation","rnb2rk1/pp2ppbp/2pp1np1/q7/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"Neo-Grunfeld, 6.cd Nxd5, 7.O-O c5, 8.dc","rnbq1rk1/pp2ppbp/6p1/2Pn4/8/5NP1/PP2PPBP/RNBQ1RK1 b - -"
"Ruy Lopez: Berlin defense, 4.O-O, d6 *","rnbq1rk1/pppp1ppp/5n2/4p3/1b2P3/2NP1N2/PPP2PPP/R1BQKB1R b KQ -"
"Ruy Lopez: Exchange variation doubly deferred (DERLD) *","rnbq1rk1/pppp1ppp/5n2/4p3/4P3/P1b2N2/1PPPBPPP/R1BQK2R w KQ -"
"KGA: Allgaier, Horny defense","rnbq3r/pppp1k2/3b1n1p/8/4PQ1P/8/PPPP2P1/RNB1KB1R w KQ -"
"Robatsch defense","rnbqk1nr/ppppppbp/6p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq -"
"Giuoco Pianissimo: Dubois variation *","rnbqk2r/ppp2ppp/3p4/2b1pP2/2B1P1n1/2N5/PPPP2PP/R1BQK1NR b KQkq -"
"KGA: Ghulam Kassim gambit *","rnbqk2r/ppp3pp/5n2/2bppPP1/8/8/PPPP1P1P/RNBQKBNR w KQkq -"
"Ruy Lopez: Berlin defense *","rnbqk2r/pppp1ppp/5n2/4p3/1b2P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"Benko gambit accepted","rnbqkb1r/3ppppp/P4n2/2pP4/8/8/PP2PPPP/RNBQKBNR b KQkq -"
"QGD Slav accepted","rnbqkb1r/pp2pppp/2p2n2/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq -"
"Queen's pawn game","rnbqkb1r/ppp2ppp/4pn2/3p4/3P4/3BPN2/PPP2PPP/RNBQK2R b KQkq -"
"Vienna game","rnbqkb1r/pppp1ppp/5n2/4p3/2B1P3/2N5/PPPP1PPP/R1BQK1NR b KQkq -"
"Sicilian: Nimzovich-Rubinstein variation *","rnbqkb1r/pppp1ppp/5n2/4p3/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq -"
"Dutch with c4 & Nc3","rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq -"
"Reti: King's Indian attack, Spassky's variation *","rnbqkb1r/pppppp1p/5np1/8/1P6/5N2/P1PPPPPP/RNBQKB1R b KQkq -"
"Queen's pawn: Mengarini attack","rnbqkb1r/pppppp1p/5np1/8/2PP4/8/PPQ1PPPP/RNB1KBNR b KQkq -"
"English opening","rnbqkb1r/pppppppp/5n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq -"
"Sicilian: Kan, 5.Bd3","rnbqkbnr/1p1p1ppp/p3p3/8/3NP3/3B4/PPP2PPP/RNBQK2R b KQkq -"
"KGA: Orsini gambit *","rnbqkbnr/p1pp2pp/1p6/4pP2/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Caro-Kann: Hillbilly attack","rnbqkbnr/pp1ppppp/2p5/8/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq -"
"Caro-Kann defense","rnbqkbnr/pp1ppppp/2p5/8/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq -"
"Sicilian: Alapin's variation (2.c3)","rnbqkbnr/pp1ppppp/8/2p5/4P3/2P5/PP1P1PPP/RNBQKBNR b KQkq -"
"Neo-Grunfeld (Kemeri) defense *","rnbqkbnr/pp2pp1p/6p1/2pp4/3P4/5NP1/PPP1PP1P/RNBQKB1R b KQkq -"
"Vulture defense *","rnbqkbnr/pp2pppp/8/2p1N3/2Pp4/8/PP1PPPPP/RNBQKB1R b KQkq -"
"Tennison (Lemberg, Zukertort) gambit","rnbqkbnr/ppp1pppp/8/3p4/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -"
"Norwegian defense *","rnbqkbnr/ppp2p1p/8/3p2p1/4p3/6P1/PPPPPPNP/RNBQKB1R b KQkq -"
"Dutch defense, Rubinstein variation","rnbqkbnr/pppp2pp/4p3/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq -"
"Benoni: classical, 9...Re8","rnbqr1k1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQ1RK1 w - -"
"English: four knights, kingside fianchetto","r1bq1rk1/pppp1ppp/2n2n2/8/1bP1p3/2N2NP1/PP1PPPBP/R1BQ1RK1 w - -"
"English: symmetrical variation","rnbqkb1r/pp1ppppp/5n2/2p5/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq d3"
"Polish defence","rnbqkbnr/p1pppppp/8/1p6/3P4/8/PPP1PPPP/RNBQKBNR w KQkq b6"
"Vienna gambit","rnbqkb1r/ppp2ppp/5n2/3pp3/4PP2/2N5/PPPP2PP/R1BQKBNR w KQkq d6"
"Four knights: Scotch (4...exd4 5.Nxd4)","r1bqkb1r/pppp1ppp/2n2n2/8/3NP3/2N5/PPP2PPP/R1BQKB1R b KQkq -"
"Catalan: closed","rnbq1rk1/p3bppp/1pp1pn2/3p4/2PP4/5NP1/PPQ1PPBP/RNB2RK1 w - -"
"King's Indian: fianchetto, classical variation (8.e4)","r1bq1rk1/pp1n1pbp/2pp1np1/4p3/2PPP3/2N2NP1/PP3PBP/R1BQ1RK1 w - -"
"King's Indian: orthodox, Aronin-Taimanov (with 9.Nd2)","r1bq1r1k/1pp3bp/3p1np1/1N1Ppp1n/1PP1P3/5PP1/2QNB2P/1RB2RK1 w - -"
"Vienna: Steinitz gambit, Zukertort defense *","r1bq1bnr/ppp1k1pp/2n5/3ppP1Q/3P4/2N5/PPP2PPP/R1B1KBNR b KQ -"
"Four Knights: Alatortsev variation *","r1bq1rk1/ppp1nppp/3p1n2/1B2p3/1b1PP3/2N2N2/PPP1QPPP/R1B2RK1 b - -"
"Ruy Lopez: Graz variation","r1bqk1nr/2pp1ppp/p1n5/1pb1p3/4P3/1B3N2/PPPP1PPP/RNBQK2R w KQkq -"
"English: closed, 5.Rb1","r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2N3P1/PP1PPPBP/1RBQK1NR b Kkq -"
"English: closed system","r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq -"
"Ruy Lopez: Berlin defense, Cordel variation","r1bqk2r/p1ppbppp/2p5/4Pn2/8/5N2/PPP1QPPP/RNB2RK1 w kq -"
"King's Indian: Four pawns attack *","r1bqk2r/pp2b1pp/2n2n2/2p1pp2/2Pp4/3PPNP1/PP3PBP/RNBQ1RK1 w kq -"
"QGD semi-Slav: Meran, old main line *","r1bqk2r/pp3ppp/2nb1n2/3p4/1PP1p3/P3PN2/3N1PPP/R1BQKB1R w KQkq -"
"Two Knights defense: Pincus variation","r1bqk2r/ppp2ppp/2n5/3np1N1/1bBP4/8/PPP2PPP/RNBQK2R w KQkq -"
"Nimzo-Indian: classical, 4...Nc6","r1bqk2r/pppp1ppp/2n1pn2/8/1bPP4/2N5/PPQ1PPPP/R1B1KBNR w KQkq -"
"Ruy Lopez: Schliemann defense, Berger variation *","r1bqk2r/pppp1ppp/2n2n2/4p3/1b2PP2/2N5/PPPP2PP/R1BQKBNR w KQkq -"
"Ruy Lopez: ...b5 & ...d6","r1bqkb1r/2p2ppp/p1np1n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQ1RK1 w kq -"
"QGD Slav: Semmering variation","r1bqkb1r/pp1n1ppp/4pn2/2pp4/2PP4/3BPN2/PP1N1PPP/R1BQK2R w KQkq -"
"Philidor: Improved Hanham variation","r1bqkb1r/pppn1ppp/3p1n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq -"
"Ruy Lopez: Berlin defense, Nyholm attack","r1bqkb1r/pppp1ppp/2n2n2/1B6/3pP3/5N2/PPP2PPP/RNBQ1RK1 b kq -"
"Two Knights defense, Perreux variation","r1bqkb1r/pppp1ppp/2n2n2/6N1/2BpP3/8/PPP2PPP/RNBQK2R b KQkq -"
"Ruy Lopez: Brentano defense","r1bqkbnr/pppp1p1p/2n5/1B2p1p1/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Vienna: Hamppe-Allgaier gambit","r1bqkbnr/pppp1p1p/2n5/6N1/4PppP/2N5/PPPP2P1/R1BQKB1R b KQkq -"
"Vienna: Pierce gambit","r1bqkbnr/pppp1p1p/2n5/6p1/3PPp2/2N2N2/PPP3PP/R1BQKB1R b KQkq -"
"Ruy Lopez: closed, Chigorin, 12...Nc6 *","r1bqr1k1/ppbn1pp1/2p2n1p/3pp3/1PP1P3/P1NP1N2/2Q1BPPP/R1B2RK1 b - -"
"Sicilian: modern Scheveningen, main line with Nb3","r2q1rk1/pp1bbppp/2nppn2/8/4PP2/1NN1B3/PPP1B1PP/R2Q1RK1 b - -"
"Grunfeld: exchange, Sokolsky variation","r2q1rk1/pp2ppbp/4b1p1/n2P4/4P3/3BBP2/P3N1PP/R2Q1RK1 b - -"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 defense, 8...Bd7","r2qkb1r/1p1b1ppp/p1nppn2/6B1/3NP3/2N5/PPPQ1PPP/2KR1B1R w kq -"
"QGD *","r2qkb1r/pp3ppp/2n1pn2/2pp4/3P2b1/2P1PN2/PP1N1PPP/R1BQKB1R w KQkq -"
"Ruy Lopez: modern Steinitz defense, fianchetto (Bronstein) variation","r2qkbnr/1ppb1p1p/p1np2p1/4p3/B2PP3/2P2N2/PP3PPP/RNBQK2R w KQkq -"
"QGD: Semi-Tarrasch, Kmoch variation *","r3k2r/p2q1ppp/5n2/3pp3/1b6/4P3/PP3PPP/RNBQ1RK1 w kq -"
"Four Knights: Spielmann variation","r3kb1r/1pp2ppp/p1p1b3/3q4/3PN3/8/PPP2PPP/R1BQR1K1 w kq -"
"Benko gambit: fianchetto variation","rn1qkb1r/4pp1p/b2p1np1/2pP4/8/2N2NP1/PP2PP1P/R1BQKB1R b KQkq -"
"QGD Slav: Dutch variation","rn1qkb1r/pp2pppp/2p2n2/5b2/P1pP4/2N1PN2/1P3PPP/R1BQKB1R b KQkq -"
"Evans gambit: Levenfish variation *","rn3rk1/p4ppp/bqp5/2b1p3/N3n3/1B6/PPPQ1PPP/R1B1K1NR w KQ -"
"KGD: Norwalde variation, Bucker gambit","rnb1k1nr/pppp1ppp/8/4p3/1bB1Pq2/2N2N2/PPPP2PP/R1BQK2R b KQkq -"
"Dutch, Manhattan (Alapin, Ulvestad) variation *","rnb1kbnr/ppp1pppp/3q4/3p4/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -"
"Dutch: Ilyin-Genevsky variation with b3","rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/1PN2NP1/P3PPBP/R1BQ1RK1 b - -"
"KGA: Muzio gambit, Holloway defense *","rnb2rk1/pppp2pp/5q2/2b1pP2/8/2N5/PPPP1P1P/R1BQKBNR b KQ -"
"Ruy Lopez: Worrall attack, sharp line *","rnb2rk1/ppppqppp/1b3n2/4p3/1P2P3/P1N2N2/2PPBPPP/R1BQ1RK1 b - -"
"KGA: Allgaier, Cook variation","rnbq1bnr/ppp3k1/7p/4B3/2BPp1pP/8/PPP3P1/RN1QK2R b KQ -"
"King's Indian: Samisch, Byrne variation","rnbq1rk1/1p2ppbp/p1pp1np1/8/2PPP3/2NBBP2/PP4PP/R2QK1NR w KQ -"
"King's Indian: fianchetto, Yugoslav system","rnbq1rk1/pp2ppbp/3p1np1/2p5/2PP4/2N2NP1/PP2PPBP/R1BQK2R w KQ -"
"Queen's Indian: old main line, 6.O-O *","rnbq1rk1/pp2ppbp/5np1/2pp4/8/1P2PN2/PBPPBPPP/RN1QK2R w KQ -"
"QGD: Neo-orthodox variation, 7.Bxf6","rnbq1rk1/ppp1bpp1/4pB1p/3p4/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQ -"
"Neo-Grunfeld, 6.O-O","rnbq1rk1/ppp1ppbp/5np1/3p4/2PP4/5NP1/PP2PPBP/RNBQ1RK1 b - -"
"King's Indian: orthodox variation","rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 b - -"
"Ruy Lopez: open Berlin defense, 5...Be7 *","rnbq1rk1/ppp2ppp/5n2/3pN3/1b2P3/2N5/PPPPBPPP/R1BQK2R b KQ -"
"Bishop's opening: Lewis counter-gambit","rnbqk1nr/ppp2ppp/8/2bpp3/2B1P3/2P5/PP1P1PPP/RNBQK1NR w KQkq -"
"KGA: Hanstein gambit","rnbqk1nr/pppp1pbp/8/6p1/2B1Pp2/5N2/PPPP2PP/RNBQ1RK1 b kq -"
"Caro-Kann: Hillbilly attack *","rnbqk1nr/pppp1ppp/8/2b1p3/8/2P5/PP1PPPPP/RNBQKBNR w KQkq -"
"Evans gambit *","rnbqk2r/p1pp1ppp/5n2/1Bb1p3/4P3/2N5/PPPP1PPP/R1BQK1NR b KQkq -"
"Evans gambit: Mayet defense *","rnbqk2r/p2p1ppp/2p2n2/2b1p3/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq -"
"Ruy Lopez: modern Steinitz defense *","rnbqk2r/pp1p1ppp/2p2n2/b3p3/4P3/P1NP4/1PP2PPP/R1BQKBNR w KQkq -"
"Giuoco Piano: Eisinger variation *","rnbqk2r/pp3ppp/2p2n2/2b1p3/4P3/1B1p4/PPPPQPPP/RNB1K1NR w KQkq -"
"QGD: 4.Bg5 Be7","rnbqk2r/ppp1bppp/4pn2/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR w KQkq -"
"Two Knights defense *","rnbqk2r/ppp2ppp/5n2/2bpp3/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"KGD: classical, Heath variation *","rnbqkb1r/p1pp2pp/5n2/1p2pp2/2B1P3/3P4/PPP2PPP/RNBQK1NR w KQkq -"
"English: Bremen system, Keres variation","rnbqkb1r/pp1p1ppp/2p2n2/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq -"
"Czech Benoni defense","rnbqkb1r/pp1p1ppp/5n2/2pPp3/2P5/8/PP2PPPP/RNBQKBNR w KQkq e6"
"King's Indian, 3.Nf3 *","rnbqkb1r/pp2pppp/5n2/2pp4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -"
"Sicilian: Scheveningen variation","rnbqkb1r/pp3ppp/3ppn2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq -"
"Alekhine's defense: modern, fianchetto variation","rnbqkb1r/ppp1pp1p/3p2p1/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"Grunfeld: exchange variation","rnbqkb1r/ppp1pp1p/6p1/3n4/3P4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"Philidor's defense *","rnbqkb1r/ppp2ppp/5n2/3pp3/4P3/3P4/PPP2PPP/RNBQKBNR w KQkq -"
"Dutch: Staunton gambit, Tartakower variation","rnbqkb1r/ppppp1pp/5n2/8/3Pp1P1/2N5/PPP2P1P/R1BQKBNR b KQkq -"
"Dutch: Staunton gambit, Lasker variation","rnbqkb1r/ppppp2p/5np1/6B1/3Pp3/2N2P2/PPP3PP/R2QKBNR b KQkq -"
"Nimzovich-Larsen attack: Indian variation","rnbqkb1r/pppppppp/5n2/8/8/1P6/P1PPPPPP/RNBQKBNR w KQkq -"
"Alekhine's defense: Welling variation *","rnbqkbnr/p1pp1ppp/1p6/8/3Np3/8/PPPPPPPP/RNBQKB1R w KQkq -"
"Scandinavian gambit *","rnbqkbnr/pp1p1ppp/8/2p5/3p4/2P2N2/PP2PPPP/RNBQKB1R b KQkq -"
"QGD Slav defense: exchange variation","rnbqkbnr/pp2pppp/2p5/3P4/3P4/8/PP2PPPP/RNBQKBNR b KQkq -"
"Caro-Kann: Panov-Botvinnik attack *","rnbqkbnr/pp3ppp/8/2pp4/3P4/8/PP2PPPP/RNBQKBNR w KQkq -"
"French: advance variation *","rnbqkbnr/ppp2ppp/8/3p4/3Pp3/4P3/PPP2PPP/RNBQKBNR w KQkq -"
"French defense *","rnbqkbnr/ppp2ppp/8/3pp3/8/4P3/PPPP1PPP/RNBQKBNR w KQkq -"
"French: Tarrasch, Haberditz variation","rnbqkbnr/ppp3pp/4p3/3p1p2/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq -"
"Damiano's defense","rnbqkbnr/pppp2pp/5p2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"King's gambit *","rnbqkbnr/pppp2pp/8/4pp2/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Nimzovich-Larsen attack: Dutch variation","rnbqkbnr/ppppp1pp/8/5p2/8/1P6/P1PPPPPP/RNBQKBNR w KQkq -"
"Dutch: Spielmann gambit","rnbqkb1r/ppppp1pp/5n2/5p2/3P2P1/2N5/PPP1PP1P/R1BQKBNR b KQkq g3"
"Bishop's opening: MacDonnell double gambit","rnbqk1nr/pppp1ppp/8/4p3/1bB1PP2/8/P1PP2PP/RNBQK1NR b KQkq f3"
"Pirc-Robatsch (Bg5)","rnbqk1nr/ppp1ppbp/3p2p1/6B1/3PP3/8/PPP2PPP/RN1QKBNR w KQkq -"
"KGD: Falkbeer, Charousek variation","rnb1kb1r/ppp3pp/8/3q1p2/4nPP1/8/PPPNQ2P/R1B1KBNR b KQkq g3"
"Pirc-Robatsch","rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2P2N2/PP3PPP/RNBQKB1R w KQkq -"
"Pirc-Robatsch","r1bq1rk1/1pp2pbp/p1np1np1/4p3/3PP3/2N1B1PP/PPP1NPB1/R2QK2R w KQ -"
"Sicilian: Scheveningen, classical","r1b2rk1/1pq1bppp/p1nppn2/8/P2NPP2/2N1B3/1PP1B1PP/R2Q1R1K b - -"
"QGD: semi-Slav, Marshall gambit","rnbqkbnr/pp3ppp/2p1p3/3p4/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq e3"
"Neo-Gruenfeld (with ...Nb6)","rnbqk2r/ppp1ppbp/1n4p1/8/3P4/5NP1/PP2PPBP/RNBQK2R w KQkq -"
"King's Indian: four pawns attack","rn1q1rk1/ppp1ppbp/3p1np1/8/2PPPPb1/2N2N2/PP4PP/R1BQKB1R w KQ -"
"King's Indian: orthodox, Aronin-Taimanov, bayonet attack","r1bq1rk1/ppp1npbp/3p1np1/3Pp3/1PP1P3/2N2N2/P3BPPP/R1BQ1RK1 b - b3"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 defense, 8...Bd7 *","2kr1b1r/pppq1ppp/2n5/3np3/6b1/P1NPPN2/1P1B1PPP/R2QKB1R b KQ -"
"Nimzo-Indian: classical, San Remo variation *","r1b1kbnr/1pq2ppp/p3p3/2ppN3/3PP3/2N5/PPP2PPP/R1BQK2R b KQkq -"
"Sicilian: Taimanov variation","r1b1kbnr/ppqp1ppp/2n1p3/8/3NP3/2N1B3/PPP2PPP/R2QKB1R b KQkq -"
"Benko gambit *","r1bq1knr/pp3p1p/2n3p1/4p3/2Pp4/3P1NP1/4PP1P/RN1QKB1R w KQ -"
"English: Symmetrical, Keres defense *","r1bq1rk1/pp1pppbp/2n2np1/8/2PN4/2N1P3/PP2BPPP/R1BQK2R b KQ -"
"Four Knights: double Ruy Lopez *","r1bq1rk1/ppp2ppp/2np1n2/1B2p3/1b2P3/2N2N2/PPPP1PPP/R1BQ1RK1 w - -"
"King's Indian: orthodox, Aronin-Taimanov, main line","r1bq1rk1/pppnn1bp/3p2p1/3Ppp2/2P1P3/2N2P2/PP2B1PP/R1BQNRK1 w - -"
"King's Indian: Four pawns attack, Florentine gambit *","r1bqk2r/pp2b1pp/2n2n2/2p2p2/2PPp3/3P1NP1/PP3PBP/RNBQ1RK1 w kq -"
"Petrov: classical attack, Jaenisch variation","r1bqk2r/ppp1bppp/2n5/3p4/2PPn3/3B1N2/PP3PPP/RNBQ1RK1 b kq -"
"Giuoco piano","r1bqk2r/ppp2ppp/3p1n2/4p1B1/2BnP3/8/PPP2PPP/RN1Q1RK1 w kq -"
"Ruy Lopez: open (Tarrasch) defense","r1bqkb1r/1ppp1ppp/p1n5/4p3/B3n3/5N2/PPPP1PPP/RNBQ1RK1 w kq -"
"QGD: Semi-Tarrasch, 7.Bd3","r1bqkb1r/pp3ppp/2n1p3/2pn4/3P4/2NBPN2/PP3PPP/R1BQK2R b KQkq -"
"Sicilian: Scheveningen variation *","r1bqkb1r/ppp2ppp/2n5/3np3/8/3PPN2/PP3PPP/RNBQKB1R b KQkq -"
"Four Knights: Spanish variation","r1bqkb1r/pppp1ppp/2n2n2/1B2p3/4P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"Scotch gambit: Dubois-Reti defense","r1bqkb1r/pppp1ppp/2n2n2/8/2BpP3/5N2/PPP2PPP/RNBQK2R w KQkq -"
"Philidor: Hanham, Krause variation","r1bqkbnr/pp1n1ppp/2pp4/4p3/2BPP3/5N2/PPP2PPP/RNBQ1RK1 b kq -"
"French: advance, Paulsen attack","r1bqkbnr/pp3ppp/2n1p3/2ppP3/3P4/2P2N2/PP3PPP/RNBQKB1R b KQkq -"
"French: Tarrasch, Haberditz variation *","r1bqkbnr/pppn1ppp/8/3pp3/3P1P2/4P3/PPP3PP/RNBQKBNR b KQkq -"
"Ruy Lopez (Spanish opening)","r1bqkbnr/pppp1ppp/2n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq -"
"KP: Nimzovich defense","r1bqkbnr/pppppppp/2n5/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -"
"Giuoco Piano: Therkatz-Herzog variation *","r2q2k1/pp3ppp/8/2b1r3/3p4/3P4/PPP1NPPn/R1BQ1RK1 w - -"
"QGD: Semi-Tarrasch, San Sebastian variation *","r2qkb1r/p2b1ppp/5n2/1B1pp3/Q7/4P3/PP3PPP/RNB1K2R b KQkq -"
"Bishop's opening: Lisitsyn variation","r2qkbnr/pp3ppp/8/3pn3/8/8/PPP1NPPP/RNBQK2R b KQkq -"
"French: Albin-Alekhine-Chatard attack, Teichmann variation *","r2qkbnr/ppp2pp1/2n5/3p3p/3Pp1b1/4PP2/PPPNB1PP/RNBQK2R b KQkq -"
"French: MacCutcheon, Chigorin variation *","r2qkbnr/ppp2ppp/2n5/1B1p4/3P2b1/4Pp1P/PPP2PP1/RNBQK2R w KQkq -"
"Dutch: Staunton gambit, Staunton's line *","r2qkbnr/ppp2ppp/2n5/3pP3/6b1/5N2/PPPPP1PP/RNBQKB1R w KQkq -"
"French: classical, Rubinstein variation","rnb1k2r/pppnqppp/4p3/3pP3/3P4/2N5/PPPQ1PPP/R3KBNR b KQkq -"
"Philidor: Hanham, Steiner variation *","rnbq1rk1/ppp2ppp/5n2/2b1p3/4p3/2PP4/PP1NBPPP/R1BQK1NR w KQ -"
"Modern defense: Averbakh system","rnbqk1nr/ppp1ppbp/3p2p1/8/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq -"
"Robatsch defense: Two Knights variation","rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq -"
"French: Winawer, fingerslip variation","rnbqk1nr/ppp2ppp/4p3/3p4/1b1PP3/2N5/PPPB1PPP/R2QKBNR b KQkq -"
"Scotch gambit *","rnbqk2r/p4ppp/2p2n2/1Bb1p3/8/2N5/PPPP1PPP/R1BQK1NR w KQkq -"
"Queen's Indian: Burger variation *","rnbqk2r/pp2ppbp/6p1/2p5/2PP2n1/1P3N2/PB1P1PPP/RN1QKB1R w KQkq -"
"English: Neo-Catalan declined","rnbqk2r/ppp1bppp/4pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQ1RK1 b kq -"
"Pirc: Chinese variation","rnbqk2r/ppp1ppbp/3p1np1/8/3PP1P1/2N5/PPP1BP1P/R1BQK1NR b KQkq -"
"Nimzo-Indian: Mikenas attack","rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2NQ4/PP2PPPP/R1B1KBNR b KQkq -"
"Hungarian defense *","rnbqk2r/pppp1ppp/5n2/2b1p3/4P3/2N5/PPPPBPPP/R1BQK1NR b KQkq -"
"Giuoco Piano: Jerome gambit *","rnbqk2r/pppp1ppp/5n2/4p3/2B1P3/2N5/PPPP1bPP/R1BQK1NR w KQkq -"
"Sicilian: Najdorf, Opocensky variation","rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N5/PPP1BPPP/R1BQK2R b KQkq -"
"Queen's Indian: 4.g3 Bb7 *","rnbqkb1r/pp2pp1p/5np1/2pp4/8/1P2PN2/PBPP1PPP/RN1QKB1R b KQkq -"
"Queen's pawn game, Rubinstein (Colle-Zukertort) variation","rnbqkb1r/pp3ppp/4pn2/2pp4/3P4/1P1BPN2/P1P2PPP/RNBQK2R b KQkq -"
"Alekhine's defense: modern variation","rnbqkb1r/ppp1pppp/3p4/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R b KQkq -"
"English: Neo-Catalan accepted","rnbqkb1r/ppp2ppp/4pn2/8/2p5/5NP1/PP1PPPBP/RNBQK2R w KQkq -"
"Sicilian: Labourdonnais-Lowenthal (Kalashnikov) variation *","rnbqkb1r/ppp2ppp/8/4p3/1n2P3/2NP4/PP3PPP/R1BQKBNR b KQkq -"
"Sicilian: accelerated fianchetto, exchange variation *","rnbqkb1r/ppp2ppp/8/4p3/8/2n3P1/PP1PPP1P/R1BQKBNR w KQkq -"
"French: Steinitz, Gledhill attack","rnbqkb1r/pppn1ppp/4p3/3pP3/3P2Q1/2N5/PPP2PPP/R1B1KBNR b KQkq -"
"Alekhine's defense: Spielmann variation","rnbqkb1r/pppnpppp/4P3/3p4/8/2N5/PPPP1PPP/R1BQKBNR b KQkq -"
"Reti opening *","rnbqkb1r/pppppppp/5n2/8/3P4/8/PPP1PPPP/RNBQKBNR b KQkq -"
"English: Caro-Kann defensive system *","rnbqkbnr/pp1ppppp/8/2p5/8/2P5/PP1PPPPP/RNBQKBNR b KQkq -"
"QGD: Tarrasch defense, Marshall gambit","rnbqkbnr/pp3ppp/8/2pp4/3PP3/2N5/PP3PPP/R1BQKBNR b KQkq -"
"Alekhine's defense: four pawns attack, 6...Nc6 *","rnbqkbnr/pp4pp/8/2pp4/4p3/1NN5/PPP1PPPP/R1BQKB1R b KQkq -"
"KGA: Pawn's gambit (Stamma gambit) *","rnbqkbnr/pppp2p1/8/4pP1p/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Bird's opening *","rnbqkbnr/ppppp1pp/8/5p2/3P4/8/PPP1PPPP/RNBQKBNR b KQkq -"
"Ruy Lopez: closed, Averbach variation *","rnbqr1k1/pppp1ppp/5n2/b3p3/4P3/P1NP1N2/1PP1BPPP/R1BQK2R b KQ -"
"English: Anglo-Gruenfeld defence","rnbqkb1r/ppp1pp1p/6p1/3n4/8/2N1PN2/PP1P1PPP/R1BQKB1R b KQkq -"
"Benoni: four pawns attack","rnbq1rk1/pp3pbp/3p1np1/2pP4/4PP2/2N2N2/PP2B1PP/R1BQK2R b KQ -"
"Scotch gambit: Cochrane-Shumov defence","r1bq3r/ppp2k1p/2n3p1/2Qp4/3pP3/8/PPP2PPP/RNB1K2R w KQ d6"
"Caro-Kann: classical, Maroczy attack","rn1qkbnr/pp2pppp/2p3b1/8/3P1P2/6N1/PPP3PP/R1BQKBNR b KQkq f3"
"Sicilian: Gloria variation","r1bqkbnr/pp2ppp1/2np4/2p4p/2P1P3/2N3P1/PP1P1P1P/R1BQKBNR w KQkq h6"
"Sicilian: Grand Prix attack","rnbqkbnr/pp1ppppp/8/2p5/4PP2/8/PPPP2PP/RNBQKBNR b KQkq f3"
"Two knights defence: Yurdansky attack","r4b1r/ppp1kp2/2n1bN1p/q5p1/1P1p3B/5N2/P1P2PPP/R2QR1K1 b - b3"
"Sicilian: Sozin attack","rnbqkb1r/1p3ppp/p2ppn2/8/3NP3/1BN5/PPP2PPP/R1BQK2R b KQkq -"
"Sicilian: Najdorf (7.f4)","rnbqkb1r/1p3ppp/p2ppn2/6B1/3NPP2/2N5/PPP3PP/R2QKB1R b KQkq f3"
"Ruy Lopez: open, Harksen gambit","r1bqkb1r/2p2ppp/p1n5/1p1pp3/2PPn3/1B3N2/PP3PPP/RNBQ1RK1 b kq c3"
"Neo-Gruenfeld defence","rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/5P2/PP2P1PP/RNBQKBNR w KQkq d6"
"Gruenfeld (5.e3 c6)","rn1q1rk1/pp2ppbp/2p1bnp1/3p4/2PP4/2N1PN2/PP2BPPP/R1BQ1RK1 w - -"
"Queen's Indian: main line","rn1qk2r/pbpp1pp1/1p2pn1p/8/1bPP3B/2N1PN2/PP3PPP/R2QKB1R b KQkq -"
"Grunfeld: Russian variation with e4 *","r1b1kb1r/pp3ppp/2n2n2/2qpp3/8/5NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"King's Indian: Samisch, Panno formation","r1bq1rk1/1pp1ppbp/p1np1np1/8/2PPP3/2N1BP2/PP2N1PP/R2QKB1R w KQ -"
"Grunfeld: exchange, Larsen variation *","r1bq1rk1/p3nppp/2p5/2bpp3/8/1P4P1/P1PQPPBP/RNB2RK1 b - -"
"Dutch: stonewall with Nc3 *","r1bq1rk1/pp2ppbp/2n2np1/2pp4/3P1P2/2P1PN2/PP2B1PP/RNBQ1RK1 b - -"
"Nimzo-Indian: 4.e3, main line with 8...dc and 9...cd","r1bq1rk1/pp3ppp/2n1pn2/8/1bBp4/P1N1PN2/1P3PPP/R1BQ1RK1 w - -"
"Ruy Lopez: closed Berlin defense, Wolf variation *","r1bq1rk1/ppp2ppp/2n2n2/3Pp3/1b6/2NP1N2/PPPB1PPP/R2QKB1R b KQ -"
"Four Knights: symmetrical variation *","r1bq1rk1/ppp2ppp/2np1n2/1B2p3/1b2P3/2NP1N2/PPP2PPP/R1BQ1RK1 b - -"
"Benko gambit: main line *","r1bq3r/pp3pkp/2n2np1/4p3/2Pp4/3P1NP1/4PPBP/RN1Q1RK1 w - -"
"English: symmetrical, Botvinnik system reversed","r1bqk1nr/pp1p1pbp/2n3p1/2p1p3/2P5/2N1P1P1/PP1P1PBP/R1BQK1NR w KQkq -"
"French: Tarrasch, closed variation, main line *","r1bqk2r/pp1nnppp/3b4/3p4/3Pp3/2N1P3/PP1N1PPP/R1BQKB1R w KQkq -"
"Four Knights: Spanish variation *","r1bqk2r/pppp1ppp/2n2n2/4p3/1b2P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"Sicilian, Szen variation, Dely-Kasparov gambit","r1bqkb1r/1p3ppp/p1n1pn2/3p4/2P1P3/N1N5/PP3PPP/R1BQKB1R w KQkq -"
"Four Knights: Ranken variation","r1bqkb1r/1ppp1ppp/p1B2n2/4p3/4P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"Sicilian: Dragon, Levenfish; Flohr variation","r1bqkb1r/pp1npp1p/3p1np1/8/3NPP2/2N5/PPP3PP/R1BQKB1R w KQkq -"
"Sicilian: Pelikan (Lasker/Sveshnikov) variation","r1bqkb1r/pp1p1ppp/2n2n2/4p3/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq -"
"QGD semi-Slav: Rubinstein (anti-Meran) system *","r1bqkb1r/pp3ppp/2n1p3/2pp4/3Pn3/2P1PN2/PP1N1PPP/R1BQKB1R w KQkq -"
"Two Knights defense: Kieseritsky variation","r1bqkb1r/ppp2ppp/5n2/n2Pp1N1/2B5/3P4/PPP2PPP/RNBQK2R b KQkq -"
"Ruy Lopez: modern Steinitz defense, Alapin variation","r1bqkbnr/2p3pp/p1pp1p2/4p3/3PP3/5N2/PPP2PPP/RNBQK2R w KQkq -"
"Scandinavian, Mieses-Kortch gambit *","r1bqkbnr/p1pp1ppp/2n5/1p6/Q7/8/PPP1PPPP/RNB1KBNR w KQkq -"
"French: advance variation","r1bqkbnr/pp3ppp/2n1p3/2ppP3/3P4/2P5/PP3PPP/RNBQKBNR w KQkq -"
"French: Tarrasch, open variation, main line","r1bqkbnr/pp3ppp/2n5/2pp4/3P4/5N2/PPPN1PPP/R1BQKB1R w KQkq -"
"King's Indian: Four pawns attack *","r1bqkbnr/pp4pp/2n5/2pppp2/8/3P1NP1/PPP1PPBP/RNBQK2R w KQkq -"
"QGD: Albin counter-gambit, Alapin variation","r1bqkbnr/ppp2ppp/2n5/4P3/2Pp4/5N2/PP1NPPPP/R1BQKB1R b KQkq -"
"Grunfeld: Spassky variation, main line, 13.Bd3 *","r2q1rk1/p3n1pp/3bbp2/3pp3/N7/4B1P1/PP2PPBP/R2Q1RK1 b - -"
"Ruy Lopez: open, Italian variation","r2qk2r/2p2ppp/p1n1b3/1pbpP3/4n3/1BP2N2/PP3PPP/RNBQ1RK1 w kq -"
"QGD: Orthodox defense, Botvinnik variation *","r2qk2r/pp3ppp/2nbpn2/2pp4/3P2b1/4PN2/PPPNBPPP/R1BQ1RK1 w kq -"
"Ruy Lopez: open, 8...Be6","r2qkb1r/2p2ppp/p1n1b3/1p1pP3/4n3/1B3N2/PPP2PPP/RNBQ1RK1 w kq -"
"QGD semi-Slav: anti-Meran gambit *","r2qkb1r/pp3ppp/2n5/2Pp3b/1P2p1n1/2P1PN1P/P4P2/RNBQKB1R w KQkq -"
"French: MacCutcheon, Janowski variation *","r2qkbnr/ppp2ppp/2n1b3/1B1p4/3Pp3/4PN1P/PPP2PP1/RNBQK2R w KQkq -"
"Sicilian: Najdorf, Polugayevsky, Simagin variation *","r3kb1r/ppp1q1pp/2n5/3n4/1P2p1b1/P3PN2/2Q2PPP/RNB1KB1R w KQkq -"
"Sicilian: Richter-Rauzer, Rauzer attack *","r3kb1r/pppq1ppp/2n5/3np3/6b1/2NPPN2/PP3PPP/R1BQKB1R w KQkq -"
"Old Indian: Tartakower (Wade) variation","rn1qkbnr/ppp1pppp/3p4/8/3P2b1/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"KGD: Falkbeer, Alapin variation *","rnbk1b1r/pppnqBpp/8/4Np2/3Q4/8/PPP2PPP/RNB1K2R w KQ -"
"Grunfeld: Grunfeld gambit, Capablanca variation","rnbq1rk1/ppp1ppbp/5np1/3p4/2PP1B2/2N1P3/PP3PPP/2RQKBNR b K -"
"Ruy Lopez: Berlin defense, Rosenthal variation *","rnbq1rk1/ppp2ppp/5n2/3pN3/1b2P3/P1N5/1PPP1PPP/R1BQKB1R b KQ -"
"Sicilian: Canal-Sokolsky attack, Sokolsky variation *","rnbqk2r/pp1p1ppp/5n2/2p1p3/2P5/3P4/PP1QPPPP/RN2KBNR w KQkq -"
"Bishop's opening: Lisitsyn variation *","rnbqk2r/ppp1nppp/8/8/3PN3/8/PP3PPP/R2QKBNR w KQkq -"
"Dutch defense, Blackburne variation *","rnbqk2r/ppp1ppbp/6pn/3p4/5P2/4PN2/PPPP2PP/RNBQKB1R w KQkq -"
"Scotch gambit: Dubois-Reti defense *","rnbqk2r/ppp2ppp/5n2/2bPp3/8/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"Dutch defense: Dutch-Indian (Nimzo-Dutch) variation","rnbqk2r/pppp2pp/4pn2/5p2/1bPP4/6P1/PP2PPBP/RNBQK1NR w KQkq -"
"QGA: classical, 6...a6","rnbqkb1r/1p3ppp/p3pn2/2p5/2BP4/4PN2/PP3PPP/RNBQ1RK1 w kq -"
"Blumenfeld counter-gambit","rnbqkb1r/p2p1ppp/4pn2/1ppP4/2P5/5N2/PP2PPPP/RNBQKB1R w KQkq -"
"QGD: Semi-Tarrasch, 5.cd","rnbqkb1r/pp3ppp/4pn2/2pP4/3P4/2N2N2/PP2PPPP/R1BQKB1R b KQkq -"
"Petrov: French attack *","rnbqkb1r/ppp2ppp/3p1n2/4N3/8/3P4/PPP2PPP/RNBQKB1R w KQkq -"
"KGD: Falkbeer, Reti variation","rnbqkb1r/ppp2ppp/5n2/3P4/4pP2/3P4/PPP1Q1PP/RNB1KBNR b KQkq -"
"KGA: Schallop defense *","rnbqkb1r/pppp2pp/5n2/4pP2/8/5N2/PPPP1PPP/RNBQKB1R b KQkq -"
"Mujannah opening *","rnbqkbnr/pp1pp1pp/8/2p2p2/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Old Benoni: Schmid's system","rnbqkbnr/pp2pp1p/3p2p1/2pP4/8/2N5/PPP1PPPP/R1BQKBNR w KQkq -"
"Robatsch defense: three pawns attack *","rnbqkbnr/ppp3pp/8/3ppp2/8/6P1/PPPPPPBP/RNBQK1NR w KQkq -"
"Nimzovich-Larsen attack: modern variation","rnbqkbnr/pppp1ppp/8/4p3/8/1P6/P1PPPPPP/RNBQKBNR w KQkq -"
"King's knight's gambit","rnbqkbnr/pppp1ppp/8/8/4Pp2/5N2/PPPP2PP/RNBQKB1R b KQkq -"
"KGA: Carrera (Basman) gambit","rnbqkbnr/pppp1ppp/8/8/4Pp2/8/PPPPQ1PP/RNB1KBNR b KQkq -"
"Carr's defense","rnbqkbnr/ppppppp1/7p/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Ruy Lopez: closed, Keres (9...a5) variation *","rnbqr1k1/pp1p1pp1/1bp2n1p/4p3/PP2P3/2NP1N2/2P1BPPP/R1BQ1RK1 b - -"
"Ruy Lopez: closed, Breyer, Borisenko variation *","rnbqr1k1/pp3pp1/1bp2n1p/3pp3/1P2P3/P2P1N2/2PNBPPP/R1BQ1RK1 b - -"
"English: Adorjan defence","rnbqkbnr/pppp1p1p/6p1/4p3/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq e6"
"English: Bled variation","rnbqk2r/pp2ppbp/2p2np1/3p4/2P5/1P2PN2/PB1P1PPP/RN1QKB1R w KQkq -"
"Queen's pawn: Charlick (Englund) gambit","rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq e6"
"French: Winawer, advance variation","rnbqk1nr/pp3ppp/4p3/2ppP3/1b1P4/2N5/PPP2PPP/R1BQKBNR w KQkq c6"
"KGA: Philidor gambit","rnbqk1nr/pppp1pbp/8/6p1/2B1Pp1P/5N2/PPPP2P1/RNBQK2R b KQkq h3"
"Sicilian defence","rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPP1PPP/RNBQKBNR w KQkq c6"
"Sicilian: accelerated fianchetto, Maroczy bind","r1bqkbnr/pp1ppp1p/2n3p1/8/2PNP3/8/PP3PPP/RNBQKB1R b KQkq c3"
"Ruy Lopez: closed, Chigorin defence","r1b2rk1/2q1bppp/p2p1n2/npp1p3/3PP3/2P2N1P/PPBN1PP1/R1BQR1K1 b - -"
"QGA: classical, Rubinstein variation","rnbqkb1r/1p3ppp/p3pn2/2p5/P1BP4/4PN2/1P3PPP/RNBQ1RK1 b kq a3"
"QGD: Orthodox defense, classical, 13.d1c2 (Vidmar) *","5rk1/ppq2ppp/2r1pn2/2bp4/4P3/2P5/PP1NQPPP/R1B2RK1 w - -"
"Two Knights defense: Fegatello attack, Polerio defense *","r1b1k2r/pppp1ppp/2n2q2/2b5/3NP3/4K3/PPP1N1PP/R1BQ1B1R b kq -"
"Scotch: Paulsen attack","r1b1k2r/ppppnppp/2n2q2/1Bb5/3NP3/2P1B3/PP3PPP/RN1QK2R b KQkq -"
"QGD: Orthodox defense, Rubinstein attack, main line","r1bq1rk1/1p1nbppp/p1p1pn2/3P2B1/3P4/2N1PN2/PPQ2PPP/2R1KB1R b K -"
"Ruy Lopez: closed, Breyer, Borisenko variation","r1bq1rk1/2pnbppp/p2p1n2/1p2p3/3PP3/1BP2N1P/PP3PP1/RNBQR1K1 w - -"
"Sicilian: Dragon, Yugoslav attack, 9.Bc4","r1bq1rk1/pp2ppbp/2np1np1/8/2BNP3/2N1BP2/PPPQ2PP/R3K2R b KQ -"
"Nimzo-Indian: 4.e3, Ragozin variation *","r1bq1rk1/pp3ppp/2nbpn2/1BPp4/8/2N1PN2/PPP2PPP/R1BQ1RK1 b - -"
"King's Indian: fianchetto, Uhlmann (Szabo) variation","r1bq1rk1/ppp2pbp/2np1np1/4p3/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"Vienna: Hamppe-Muzio gambit *","r1bq1rk1/pppp2pp/2n2n2/2b1pPP1/8/2N5/PPPP1P1P/R1BQKBNR w KQ -"
"French: Tarrasch, Botvinnik variation *","r1bqk1nr/pp1n1ppp/2pb4/3p4/2PPp3/1P2P3/P2N1PPP/RNBQKB1R b KQkq -"
"Evans gambit declined, 5.a4","r1bqk1nr/pppp1ppp/1bn5/4p3/PPB1P3/5N2/2PP1PPP/RNBQK2R b KQkq -"
"Ruy Lopez: closed","r1bqk2r/2ppbppp/p1n2n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQR1K1 b kq -"
"King's Indian: fianchetto with ...Nd7 *","r1bqk2r/pp2ppbp/2n2np1/2pp4/8/3P1NP1/PPPNPPBP/R1BQ1RK1 b kq -"
"Giuoco Piano: Aitken variation","r1bqk2r/pppp1ppp/2n5/8/2BP4/B1b2N2/P4PPP/R2Q1RK1 b kq -"
"French: Winawer, Alekhine gambit *","r1bqkb1r/1pp1nppp/p1B5/3pP3/8/4P3/PPP2PPP/RNBQK1NR b KQkq -"
"QGD: Capablanca anti-Cambridge Springs variation","r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/P1N1P3/1P3PPP/R2QKBNR b KQkq -"
"QGD semi-Slav: 7.Bc4","r1bqkb1r/pp1n1ppp/2p1pn2/8/2BP4/2N1PN2/PP3PPP/R1BQK2R b KQkq -"
"QGD: Ragozin variation *","r1bqkb1r/pp2pppp/2n2n2/1Bpp4/3P4/4PN2/PPP2PPP/RNBQK2R b KQkq -"
"Sicilian: Richter-Rauzer","r1bqkb1r/pp2pppp/2np1n2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R b KQkq -"
"Caro-Kann: classical, 7...Nd7 *","r1bqkb1r/ppp2pp1/5nn1/3p3p/8/2P3BP/PP1NPPP1/R2QKBNR b KQkq -"
"Philidor: Improved Hanham variation *","r1bqkb1r/ppp2ppp/2n2n2/3pp3/4P3/3P1N2/PPPN1PPP/R1BQKB1R b KQkq -"
"Ruy Lopez: Berlin defense, Duras variation","r1bqkb1r/ppp2ppp/2np1n2/1B2p3/2P1P3/3P1N2/PP3PPP/RNBQK2R b KQkq -"
"Two Knights defense: Fritz variation","r1bqkb1r/ppp2ppp/5n2/3Pp1N1/2Bn4/8/PPPP1PPP/RNBQK2R w KQkq -"
"de Bruycker defense *","r1bqkbnr/ppp2ppp/2n5/3pp3/8/2P5/PPNPPPPP/R1BQKBNR b KQkq -"
"Dresden opening","r1bqkbnr/pppp1ppp/2n5/4p3/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq -"
"English: Four Knights, Stean variation","r1bqr1k1/pppp1ppp/2n2n2/3NpQ2/1bP5/4PN2/PP1P1PPP/R1B1KB1R b KQ -"
"Sicilian: Dragon, classical, 9.Nb3 *","r2q1rk1/ppp1bppp/1nn1b3/4p3/8/2NP1NP1/PP2PPBP/R1BQ1RK1 w - -"
"QGD: Lasker defense, main line *","r2qkb1r/p4ppp/2p1pn2/3p4/3p4/4P2P/PPP1QPP1/RNB2RK1 w kq -"
"QGD Slav: exchange variation, 6.Bf4 Bf5 *","r2qkb1r/pp2pppp/2n2n2/3p1b2/3P1B2/2N2N2/PP2PPPP/R2QKB1R b KQkq -"
"French: classical, Tartakower variation *","r2qkbnr/ppp2ppp/2n5/3pN3/3Pp1b1/4P3/PPP1BPPP/RNBQK2R b KQkq -"
"QGD Slav: Dutch variation","rn1qk2r/pp3ppp/2p1pn2/5b2/PbBP4/2N1PN2/1P3PPP/R1BQ1RK1 b kq -"
"Two Knights defense: Knorre variation *","rn1qk2r/pppbbppp/8/3pP3/N3n3/2PB1N1P/P1Q2PP1/R1B1K2R w KQkq -"
"English: New York (London) defensive system *","rn1qkb1r/pb1ppppp/1p3n2/2p5/3P1B2/2P2N2/PP2PPPP/RN1QKB1R b KQkq -"
"French: classical, Tarrasch variation","rnb1k2r/pppnqppp/4p3/3pP3/3P4/2NB4/PPP2PPP/R2QK1NR b KQkq -"
"Petrov: modern attack, Steinitz variation *","rnb1kb1r/ppp1qppp/5n2/3PN3/4p3/8/PPPP1PPP/RNBQKB1R w KQkq -"
"KGA: Cochrane gambit","rnb1kbnr/pppp1p1p/8/4N3/2B1P1pq/5p2/PPPP2PP/RNBQ1K1R w kq -"
"Evans gambit: Richardson attack *","rnbq1rk1/p4ppp/2p5/2bpp3/B3n3/2N2N2/PPPP1PPP/R1BQ1RK1 w - -"
"KGA: Hanstein gambit *","rnbq1rk1/pppp2pp/5n2/2b1pP2/6P1/8/PPPP1PBP/RNBQK1NR w KQ -"
"Bishop's opening: Lewis counter-gambit *","rnbqk1nr/pp1p1ppp/2p5/2b1p3/2BPP3/8/PPP2PPP/RNBQK1NR b KQkq -"
"Robatsch defense: Pseudo-Austrian attack","rnbqk1nr/ppp1ppbp/3p2p1/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq -"
"KGD: classical, 4.c3","rnbqk1nr/ppp2ppp/3p4/2b1p3/4PP2/2P2N2/PP1P2PP/RNBQKB1R b KQkq -"
"Scotch gambit: Cochrane variation *","rnbqk2r/p4ppp/2p2n2/2b5/B3p3/2N5/PPPP1PPP/R1BQK1NR w KQkq -"
"Ruy Lopez: classical defense, Charousek variation *","rnbqk2r/pp1p1ppp/2p2n2/4p3/1b2P3/1BN5/PPPP1PPP/R1BQK1NR b KQkq -"
"French: MacCutcheon, Bernstein variation","rnbqk2r/ppp2pp1/4pn1p/3pP3/1b1P3B/2N5/PPP2PPP/R2QKBNR b KQkq -"
"Sicilian: Kan, Swiss cheese variation *","rnbqk2r/ppp2ppp/3b4/3np3/8/P3P1P1/1P1P1P1P/RNBQKBNR b KQkq -"
"Scotch gambit *","rnbqk2r/ppp2ppp/8/2bPp3/2B3n1/2N5/PPPP1PPP/R1BQK1NR w KQkq -"
"Ruy Lopez: classical (Cordel) defense *","rnbqk2r/pppp1ppp/5n2/4p3/1bB1P3/2N5/PPPP1PPP/R1BQK1NR b KQkq -"
"KGA: Cunningham, Euwe defense","rnbqk2r/ppppbppp/5n2/8/2B1Pp2/5N2/PPPP2PP/RNBQK2R w KQkq -"
"QGA: Linares variation","rnbqkb1r/p3pppp/5n2/1ppP4/2p1P3/2N5/PP3PPP/R1BQKBNR w KQkq -"
"QGD Slav: 4.e3","rnbqkb1r/pp2pppp/2p2n2/3p4/2PP4/4PN2/PP3PPP/RNBQKB1R b KQkq -"
"QGD Slav: Breyer variation","rnbqkb1r/pp2pppp/2p2n2/3p4/2PP4/5N2/PP1NPPPP/R1BQKB1R b KQkq -"
"Benoni: pawn storm variation","rnbqkb1r/pp3p1p/3p1np1/2pP4/4PP2/2N5/PP4PP/R1BQKBNR b KQkq -"
"French: advance, Wade variation *","rnbqkb1r/pp3ppp/2p2n2/3p4/2PPp3/1Q2P3/PP1B1PPP/RN2KBNR b KQkq -"
"Alekhine's defense: four pawns attack","rnbqkb1r/ppp1pppp/1n1p4/4P3/2PP1P2/8/PP4PP/RNBQKBNR b KQkq -"
"Gunderam defense *","rnbqkb1r/pppp1ppp/5n2/4p3/4P3/8/PPPPQPPP/RNB1KBNR b KQkq -"
"Vienna: Mengarini variation","rnbqkb1r/pppp1ppp/5n2/4p3/4P3/P1N5/1PPP1PPP/R1BQKBNR b KQkq -"
"Sicilian: Stiletto (Althouse) variation *","rnbqkb1r/pppp1ppp/5n2/4p3/Q1P5/8/PP1PPPPP/RNB1KBNR b KQkq -"
"Benoni defense, Hromodka system *","rnbqkbnr/pp2pppp/8/2p5/2Pp4/3P1N2/PP2PPPP/RNBQKB1R b KQkq -"
"Bird: From gambit *","rnbqkbnr/ppppp1pp/8/5p2/4P3/8/PPPP1PPP/RNBQKBNR b KQkq -"
"Clemenz (Mead's, Basman's or de Klerk's) opening","rnbqkbnr/pppppppp/8/8/8/7P/PPPPPPP1/RNBQKBNR b KQkq -"
"Ruy Lopez: Marshall, Herman Steiner variation *","rnbqr1k1/pp1p1ppp/1bp2n2/4P3/1P1p4/P1N2N2/2P1BPPP/R1BQ1RK1 b - -"
"Ruy Lopez: closed, 9.d4 *","rnbqr1k1/pp3ppp/1bp2n2/3pp3/1P2P3/P1NP1N2/2P1BPPP/R1BQ1RK1 w - -"
"Petrov: classical attack, Maroczy variation *","rnbqr1k1/pp3ppp/3b1n2/2ppN1BB/3P1P2/2N5/PPP3PP/R2QK2R b KQ -"
"Queen's pawn: Lasker fianchetto 			","rnbqkb1r/pppp1ppp/4pn2/8/3P4/5NP1/PPP1PP1P/RNBQKB1R b KQkq -"
"Dutch","rnbqkbnr/ppppp1pp/8/5p2/3P4/8/PPP1PPPP/RNBQKBNR w KQkq f6"
"KGD: Falkbeer counter-gambit","rnbqkbnr/ppp2ppp/8/3pp3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq d6"
"Pirc-Robatsch","rnbqkb1r/pp2pppp/2pp1n2/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq f3"
"Pirc-Robatsch","rnbqkb1r/pp2pppp/2pp1n2/8/3PP3/2N3P1/PPP2P1P/R1BQKBNR b KQkq -"
"Giuoco Piano: Moeller, bayonet attack","r1bqk2r/ppp1nppp/3p1b2/3P4/2B1R1P1/5N2/PP3P1P/R1BQ2K1 b kq g3"
"King's Indian: Danube gambit","rnbqkb1r/p1pppp1p/5np1/1p1P4/2P5/8/PP2PPPP/RNBQKBNR w KQkq b6"
"KGA: Muzio gambit, Paulsen variation *","4rrk1/pppb2pp/2np1q2/2b2P2/4Q3/2N4B/PPPPNP1P/R1B1K2R w KQ -"
"Grunfeld: Smyslov defense *","r1bq1rk1/pp3ppp/2nbpn2/2pp2B1/3P4/2P2NP1/PP2PPBP/RN1Q1RK1 b - -"
"English: Botvinnik system *","r1bqk1nr/pp3pbp/2np2p1/2p1p3/4P3/2NP2P1/PPP2PBP/R1BQK1NR w KQkq -"
"Grunfeld with e3 & Bd3 *","r1bqk2r/pp3ppp/2nbpn2/2pp4/3P4/5NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"QGD semi-Slav: Meran, 8...a6","r1bqkb1r/3n1ppp/p1p1pn2/1p6/3P4/2NBPN2/PP3PPP/R1BQK2R w KQkq -"
"QGD Slav","r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/4PN2/PP1N1PPP/R1BQKB1R w KQkq -"
"QGD: Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation *","r1bqkb1r/pp3p1p/2n2np1/2Ppp3/3P4/2N5/PP3PPP/R1BQKBNR w KQkq -"
"Ruy Lopez: closed Berlin defense, Chigorin variation","r1bqkb1r/pppn1ppp/2np4/1B2p3/3PP3/5N2/PPP2PPP/RNBQ1RK1 w kq -"
"Ruy Lopez: Schliemann defense deferred","r1bqkbnr/1ppp2pp/p1n5/4pp2/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Ruy Lopez: Taimanov (chase/wing/accelerated counterthrust) variation","r1bqkbnr/2pp1ppp/p7/np2p3/4P3/1B3N2/PPPP1PPP/RNBQK2R w KQkq -"
"Dutch with c4 & Nc3 *","r1bqkbnr/pp2pppp/2n5/2pp4/5P2/5N2/PPPPP1PP/RNBQKB1R w KQkq -"
"Philidor: Hanham variation","r1bqkbnr/pppn1ppp/3p4/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"Three Knights: Steinitz variation","r1bqkbnr/pppp1p1p/2n3p1/4p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"KP: Nimzovich defense","r1bqkbnr/pppppppp/2n5/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Grunfeld: Russian, Keres variation","r2q1rk1/ppp1ppbp/1nn3p1/8/3PP1b1/2NQBN2/PP2BPPP/2KR3R b - -"
"QGD: semi-Slav, Junge variation *","r2qkb1r/1p1b1ppp/2n1pn2/pBPp4/1P6/1QP1P3/P4PPP/RNB1K1NR b KQkq -"
"QGD semi-Slav: 5.Bg5 dc *","r2qkb1r/pp2pppp/2n2n2/2Pp4/6b1/2P1PN2/PP3PPP/RNBQKB1R b KQkq -"
"Sicilian: Taimanov variation *","r2qkb1r/ppp2ppp/2n1b3/3np3/8/2N1P3/PPQP1PPP/R1B1KBNR w KQkq -"
"QGD: 4.Bg5 *","r2qkbnr/pp2pppp/2n5/2pp4/3P2b1/4PN2/PPP2PPP/RNBQKB1R w KQkq -"
"French: exchange, Svenonius variation *","r2qkbnr/ppp2ppp/2n5/3p4/3P2b1/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"Sicilian: Scheveningen, English variation *","r3kb1r/pppq1ppp/2n1b3/3np3/8/P2PPN2/1P3PPP/RNBQKB1R w KQkq -"
"Queen's Indian: 4.Nc3, Botvinnik variation","rn1qkb1r/pbpp1p2/1p2p2p/6pn/2PP4/2N2NB1/PP2PPPP/R2QKB1R w KQkq -"
"Sicilian: Scheveningen (Paulsen), classical variation","rnb1kb1r/1pq2ppp/p2ppn2/8/3NP3/2N5/PPP1BPPP/R1BQ1RK1 w kq -"
"KGD: Falkbeer, Tarrasch variation *","rnb1kb1r/ppp1q2p/5n2/4Npp1/2Bp1B2/8/PPP2PPP/RN1Q1RK1 b kq -"
"Greco defense","rnb1kbnr/pppp1ppp/5q2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: Berlin defense, Trifunovic variation *","rnb2rk1/ppp1qppp/5n2/3pN3/1b1PP3/2N5/PPP1BPPP/R1BQK2R b KQ -"
"KGA: bishop's gambit, Chigorin's attack (Gifford variation) *","rnbq1knr/pppp3p/6p1/4pP1Q/3b2P1/8/PPP2P1P/RNB1KBNR w KQ -"
"QGD: Tartakower (Makagonov-Bondarevsky) system","rnbq1rk1/p1p1bpp1/1p2pn1p/3p4/2PP3B/2N1PN2/PP3PPP/R2QKB1R w KQ -"
"Dutch: stonewall with Nc3","rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - -"
"Pirc: Austrian attack","rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2N2N2/PPP3PP/R1BQKB1R w KQ -"
"Petrov: modern attack, Trifunovic variation","rnbq1rk1/ppp2ppp/8/3pb3/2PPn3/3B4/PP3PPP/RNBQ1RK1 w - -"
"Giuoco Piano: Ghulam Kassim variation *","rnbq3r/pp4pp/2P2nk1/8/2Bbp3/2N5/PPPP1PPP/R1BQK2R w KQ -"
"Grob: spike attack *","rnbqk1nr/ppppppbp/8/8/3P2p1/2P5/PP2PPPP/RNBQKBNR w KQkq -"
"Evans gambit: 5...Be7 *","rnbqk2r/p2p1ppp/2p2n2/2b1p3/4P3/2N5/PPPPBPPP/R1BQK1NR b KQkq -"
"Nimzo-Indian: classical, 4...c5","rnbqk2r/pp1p1ppp/4pn2/2p5/1bPP4/2N5/PPQ1PPPP/R1B1KBNR w KQkq -"
"Giuoco Piano *","rnbqk2r/pp3ppp/2p2n2/2bP4/2BPp3/2N2N2/PPP2PPP/R1BQK2R b KQkq d3"
"Hungarian defense: Tartakower variation *","rnbqk2r/pp3ppp/2p2n2/2bPN3/4p3/2N5/PPPPBPPP/R1BQK2R b KQkq -"
"Ruy Lopez: old Steinitz defense, semi-Duras variation *","rnbqk2r/pp3ppp/5n2/2ppp3/1b2P3/2NP4/PPPB1PPP/R2QKBNR w KQkq -"
"French: MacCutcheon, Chigorin variation","rnbqk2r/ppp2pp1/4pP1p/3p2B1/1b1P4/2N5/PPP2PPP/R2QKBNR b KQkq -"
"Nimzo-Indian: classical, Noa variation","rnbqk2r/ppp2ppp/4pn2/3p4/1bPP4/2N5/PPQ1PPPP/R1B1KBNR w KQkq -"
"Nimzo-Indian: classical, Noa variation, 5.cd ed","rnbqk2r/ppp2ppp/5n2/3p4/1b1P4/2N5/PPQ1PPPP/R1B1KBNR w KQkq -"
"Reti: King's Indian attack, Spassky's variation","rnbqkb1r/p1pppppp/5n2/1p6/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -"
"Queen's Indian: 4.g3 *","rnbqkb1r/pp2pp1p/5np1/2pp4/8/1P2PN2/P1PP1PPP/RNBQKB1R w KQkq -"
"English: symmetrical, Benoni formation *","rnbqkb1r/pp2pppp/5n2/2pp4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq -"
"Czech Benoni: King's Indian system","rnbqkb1r/pp3p1p/3p1np1/2pPp3/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq -"
"QGD: Semi-Tarrasch defense","rnbqkb1r/pp3ppp/4pn2/2pp4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq -"
"Scandinavian: Kiel variation","rnbqkb1r/ppp1pppp/8/8/1nPP4/8/PP3PPP/RNBQKBNR w KQkq -"
"Queen's pawn game","rnbqkb1r/ppp2ppp/4pn2/3p4/3P4/4PN2/PPP2PPP/RNBQKB1R w KQkq -"
"KGD: 2...Nf6","rnbqkb1r/pppp1ppp/5n2/4p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq -"
"Budapest: Rubinstein variation","rnbqkb1r/pppp1ppp/8/4P3/2P2Bn1/8/PP2PPPP/RN1QKBNR b KQkq -"
"KGA: Kieseritsky, Brentano (Campbell) defense *","rnbqkb1r/pppp2p1/8/4pPPp/3Pn3/8/PPP2P1P/RNBQKBNR b KQkq -"
"Dutch defense: Bladel variation","rnbqkb1r/ppppp2p/6pn/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"KP: Mengarini's opening *","rnbqkbnr/1ppp1ppp/p7/4p3/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Sicilian: wing gambit, Marshall variation","rnbqkbnr/pp1ppppp/8/8/1p2P3/P7/2PP1PPP/RNBQKBNR b KQkq -"
"Reti: King's Indian attack (with ...c5)","rnbqkbnr/pp2pppp/8/2pp4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -"
"French: Marshall variation","rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"Alekhine's defense: four pawns attack *","rnbqkbnr/pp4pp/8/2pp1p2/4p3/1N1P4/PPP1PPPP/RNBQKB1R w KQkq -"
"Caro-Kann: Tartakower (fantasy) variation *","rnbqkbnr/ppp3pp/5p2/3pp3/3P4/2P5/PP2PPPP/RNBQKBNR w KQkq -"
"KGA: Rosentreter gambit","rnbqkbnr/pppp1p1p/8/6p1/3PPp2/5N2/PPP3PP/RNBQKB1R b KQkq -"
"KGA: Ghulam Kassim gambit","rnbqkbnr/pppp1p1p/8/8/2BPPpp1/5N2/PPP3PP/RNBQK2R b KQkq -"
"English opening","rnbqkbnr/pppp1ppp/4p3/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"KGA: Villemson (Steinitz) gambit","rnbqkbnr/pppp1ppp/8/8/3PPp2/8/PPP3PP/RNBQKBNR b KQkq -"
"Halasz gambit","rnbqkbnr/pppp1ppp/8/8/3pPP2/8/PPP3PP/RNBQKBNR b KQkq -"
"Gedult's opening *","rnbqkbnr/ppppp1pp/5p2/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"English opening","rnbqkbnr/ppp1pp1p/3p2p1/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -"
"English: symmetrical, modern line","rnb1kb1r/1pqp1ppp/p3pn2/8/2PN4/2N3P1/PP2PP1P/R1BQKB1R w KQkq -"
"Queen's pawn: Bronstein gambit","rnbqkb1r/pppppppp/5n2/8/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq g3"
"Dutch: Krejcik gambit","rnbqkbnr/ppppp1pp/8/5p2/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq g3"
"King's pawn opening","rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq e3"
"Petrov: Kaufmann attack","rnbqkb1r/ppp2ppp/3p4/8/2P1n3/5N2/PP1P1PPP/RNBQKB1R b KQkq c3"
"Ruy Lopez: open (6.d4 b5)","r1bqkb1r/2pp1ppp/p1n5/1p2p3/B2Pn3/5N2/PPP2PPP/RNBQ1RK1 w kq b6"
"QGA: classical variation","rnbqkb1r/pp3ppp/4pn2/2p5/2BP4/4PN2/PP3PPP/RNBQK2R w KQkq c6"
"King's Indian: fianchetto, Panno system","r1bq1rk1/1pp1ppbp/p1np1np1/3P4/2P5/2N2NP1/PP2PPBP/R1BQ1RK1 b - -"
"King's Indian: Makagonov system (5.h3)","rnbq1rk1/pp2ppbp/3p1np1/2p3B1/2PPP3/2N4P/PP3PP1/R2QKBNR w KQ c6"
"Sicilian: Dragon, Yugoslav attack, 12.h4 *","2kr3r/pppq2p1/1bn1bp2/3np2p/Q7/2NP1NP1/PP1BPPBP/R1R3K1 w - -"
"KGA: Muzio gambit, Paulsen variation","r1b1k2r/ppppnp1p/2n4b/4q3/2B2p2/2NP1Q2/PPPB2PP/4RRK1 b kq -"
"Nimzo-Indian: classical, Adorjan gambit *","r1b1kbnr/1p2pppp/p1q5/2pp4/1P6/4PN2/P1PP1PPP/RNBQ1RK1 b kq -"
"Nimzo-Indian: classical, Botvinnik variation *","r1b1kbnr/1p2pppp/p1q5/2pp4/3P4/2N1PN2/PPP2PPP/R1BQK2R b KQkq -"
"QGD: Orthodox defense, classical variation","r1b2rk1/pp1nqppp/2p5/4p3/2BP4/2R1PN2/PP3PPP/3Q1RK1 w - -"
"KGA: bishop's gambit, McDonnell attack *","r1bq1knr/ppp4p/2n3p1/2bppP1Q/6P1/8/PPPPNPBP/RNB1K2R w KQ -"
"Nimzo-Indian: 4.e3, main line with 8...dc and 9...cd *","r1bq1rk1/1p3ppp/p1n1pn2/1BbP4/8/2N1PN2/PP3PPP/R1BQ1RK1 b - -"
"Ruy Lopez: Marshall counter-attack","r1bq1rk1/2p1bppp/p1n2n2/1p1pp3/4P3/1BP2N2/PP1P1PPP/RNBQR1K1 w - -"
"Ruy Lopez: Berlin defense, Pillsbury variation","r1bqk2r/pnppbppp/2p5/4P3/8/1P3N2/P1P1QPPP/RNB2RK1 b kq -"
"King's Indian: Andersson variation *","r1bqk2r/pp2bppp/2n2n2/2p1p3/4p3/3P1NP1/PPP2PBP/RNBQ1RK1 w kq -"
"Sicilian: modern Scheveningen *","r1bqk2r/ppp1bppp/2n5/3np3/8/2NPPN2/PP3PPP/R1BQKB1R b KQkq -"
"Evans gambit: Paulsen variation","r1bqk2r/ppp1nppp/1b1p4/n2P4/2B1P3/5N2/PB3PPP/RN1Q1RK1 w kq -"
"Four Knights: Rubinstein counter-gambit *","r1bqk2r/pppp1ppp/2n2n2/3Np3/1b2P3/5N2/PPPP1PPP/R1BQKB1R b KQkq -"
"KGD: Norwalde variation, Bucker gambit *","r1bqk2r/pppp2pp/2n2n2/1Bb1pQ2/4P3/8/PPPP1PPP/RNB1K1NR w KQkq -"
"English: Nimzo-English opening *","r1bqkb1r/pp1ppppp/2n2n2/1Bp5/8/4PN2/PPPP1PPP/RNBQK2R b KQkq -"
"English: symmetrical, Geller variation *","r1bqkb1r/pp2pp1p/2n3p1/2pn4/8/1QN1PN2/PP1P1PPP/R1B1KB1R b KQkq -"
"Sicilian: Richter-Rauzer, Podebrady variation","r1bqkb1r/pp3ppp/2nppn2/6B1/4P3/1NN5/PPP2PPP/R2QKB1R b KQkq -"
"Ruy Lopez: exchange, Keres variation","r1bqkbnr/1pp2ppp/p1p5/4p3/4P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"Nimzo-Indian: Samisch, O'Kelly variation *","r1bqkbnr/5ppp/p1p1p3/2pp4/2P5/1P2PN2/P2P1PPP/RNBQK2R b KQkq -"
"English: Mikenas-Carls, Kevitz variation *","r1bqkbnr/pp1p1ppp/2n5/2p1p3/8/2N1PN2/PPPP1PPP/R1BQKB1R b KQkq -"
"QGD: Janowski variation *","r1bqkbnr/pp2pppp/2n5/2pp4/3P4/P3P3/1PP2PPP/RNBQKBNR b KQkq -"
"Dutch: Staunton gambit, Tartakower variation *","r1bqkbnr/ppp2p1p/2n5/3pP1p1/8/5N2/PPPPP1PP/RNBQKB1R w KQkq -"
"Scotch opening","r1bqkbnr/pppp1ppp/2n5/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq -"
"Vienna: Falkbeer variation *","r1bqkbnr/pppp1ppp/2n5/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -"
"Center game: Paulsen attack","r1bqkbnr/pppp1ppp/2n5/8/4P3/4Q3/PPP2PPP/RNB1KBNR b KQkq -"
"King's Indian: orthodox, 7...Nbd7, 8.Re1 *","r1bqr1k1/pp2bppp/2n2n2/2ppp3/4P3/3P1NP1/PPPN1PBP/R1BQ1RK1 w - -"
"Giuoco Piano: Steinitz variation *","r2q1rk1/p4ppp/b1p2n2/2bpN3/3P4/2N5/PPP2PPP/R1BQK2R w KQ -"
"QGD: Neo-orthodox variation, 7.Bxf6 *","r2qkb1r/pp3ppp/2n1pn2/2pp4/3P4/4Pb1P/PPP1BPP1/RNBQ1RK1 w kq -"
"Grunfeld: Grunfeld gambit *","r2qkbnr/pp3ppp/2n1p3/2pp1b2/3P4/5NP1/PPP1PPBP/RNBQ1RK1 b kq -"
"King's Indian: Samisch, 6...Nc6 *","r2qkbnr/pp4pp/2n1bp2/2ppp3/8/2NP1NP1/PPP1PPBP/R1BQ1RK1 b kq -"
"Vienna: Pierce gambit, Rushmere attack","r2qkbnr/ppp2p1p/2P5/8/2BP1pb1/2N2p2/PPP3PP/R1BQ1RK1 b kq -"
"Ruy Lopez: closed, Chigorin, Yugoslav system","r3r1k1/2qbbp1p/p2p1np1/npp1p3/3PP3/2P1NN1P/PPB2PP1/R1BQR1K1 w - -"
"Richter-Veresov attack, Richter variation","rn1qkb1r/ppp1pppp/5n2/3p1bB1/3P4/2N2P2/PPP1P1PP/R2QKBNR b KQkq -"
"Vienna gambit, Wurzburger trap","rnb1kb1r/ppp2ppp/8/3NP2q/8/3P1Nn1/PPP4P/R1BQKB1R b KQkq -"
"Ruy Lopez: open, Harksen gambit *","rnbq1rk1/pp3ppp/1b3n2/2ppN3/1P1PP3/P1N5/2P2PPP/R1BQKB1R w KQ -"
"Sicilian: Dragon, classical attack","rnbqk2r/pp2ppbp/3p1np1/8/3NP3/2N1B3/PPP1BPPP/R2QK2R b KQkq -"
"Queen's Indian: 5.Bg2 Be7 *","rnbqk2r/pp2ppbp/5np1/2pp4/8/1P2PN2/PBPPBPPP/RN1QK2R b KQkq -"
"KGA: Cunningham, Bertin gambit *","rnbqk2r/pppp3p/5np1/2b1pP1B/8/8/PPPP1PPP/RNBQK1NR w KQkq -"
"Sicilian: Dragon, 6.Be3","rnbqkb1r/pp2pp1p/3p1np1/8/3NP3/2N1B3/PPP2PPP/R2QKB1R b KQkq -"
"Queen's Indian: Nimzovich variation (exaggerated fianchetto) *","rnbqkb1r/pp2pp1p/5np1/2pp4/8/BP2PN2/P1PP1PPP/RN1QKB1R b KQkq -"
"Bogo-Indian defense *","rnbqkb1r/pp2pppp/5n2/1Bpp4/8/4PN2/PPPP1PPP/RNBQK2R b KQkq -"
"Pirc: Sveshnikov system","rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N3P1/PPP2P1P/R1BQKBNR b KQkq -"
"French: exchange, Svenonius variation","rnbqkb1r/ppp2ppp/5n2/3p2B1/3P4/2N5/PPP2PPP/R2QKBNR b KQkq -"
"Vienna gambit: Paulsen attack","rnbqkb1r/ppp2ppp/8/3pP3/4n3/2N2Q2/PPPP2PP/R1B1KBNR b KQkq -"
"Bishop's opening: Ponziani gambit","rnbqkb1r/pppp1ppp/5n2/4p3/2BPP3/8/PPP2PPP/RNBQK1NR b KQkq -"
"Reti opening *","rnbqkb1r/pppppppp/5n2/8/8/3P4/PPP1PPPP/RNBQKBNR b KQkq -"
"Sicilian: wing gambit, Marshall variation *","rnbqkbnr/2pp1ppp/p7/1P2p3/8/8/PP1PPPPP/RNBQKBNR w KQkq -"
"Nimzovich-Larsen attack: classical variation *","rnbqkbnr/p1pppppp/1p6/8/3P4/8/PPP1PPPP/RNBQKBNR b KQkq -"
"Sicilian defense","rnbqkbnr/pp1ppppp/8/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -"
"QGD Slav defense *","rnbqkbnr/pp2pppp/8/2pp4/3P4/2P5/PP2PPPP/RNBQKBNR b KQkq -"
"QGA: 3.e4 *","rnbqkbnr/pp3ppp/8/2Ppp3/8/8/PPP1PPPP/RNBQKBNR w KQkq -"
"QGD: Tarrasch defense","rnbqkbnr/pp3ppp/8/2pp4/3P4/2N2N2/PP2PPPP/R1BQKB1R b KQkq -"
"Queen's pawn game","rnbqkbnr/ppp1pppp/8/3p4/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq -"
"Valencia opening","rnbqkbnr/pppp1ppp/8/4p3/8/3P4/PPPNPPPP/R1BQKBNR b KQkq -"
"Ruy Lopez: open, Breslau variation *","rnbqr1k1/pp3ppp/1bp5/3nN3/1P1PN3/P3B3/2P1BPPP/R2Q1RK1 b - -"
"Catalan: closed, Zagoryansky variation *","rnbr2k1/1pq1ppbp/5np1/p1pp4/3P4/1PP1PN2/P2NBPPP/R1BQ1RK1 w - -"
"English: Bremen, reverse dragon","rnbqkb1r/ppp2ppp/5n2/3pp3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq d6"
"English: symmetrical, main line (with d4)","r1b2rk1/pp2ppbp/1qnp1np1/8/2P5/2N3P1/PPN1PPBP/R1BQ1RK1 w - -"
"Budapest: Alekhine variation","rnbqkb1r/pppp1ppp/8/4P3/2P1P1n1/8/PP3PPP/RNBQKBNR b KQkq e3"
"French: Tarrasch, open variation (Huebner)","r1bqkbnr/pp3ppp/2n5/1B1p4/3p4/5N2/PPPN1PPP/R1BQK2R w KQkq -"
"Benko gambit (Volga gambit)","rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq b6"
"Ruy Lopez: closed, anti-Marshall (8.a4)","r1bq1rk1/2ppbppp/p1n2n2/1p2p3/P3P3/1B3N2/1PPP1PPP/RNBQR1K1 b - a3"
"Catalan opening","rnbqk2r/ppp2ppp/4pn2/3p4/1bPP4/5NP1/PP1BPP1P/RN1QKB1R b KQkq -"
"Bogo-Indian defence (Be7 retreat)","r1bq1rk1/p2nbppp/1pp1pn2/3p4/2PP4/1P3NP1/P1QBPPBP/RN3RK1 w - -"
"Nimzo-Indian: 4.e3 O-O, 5.Nf3 d5","rnbq1rk1/ppp2ppp/4pn2/3p4/1bPP4/2N1PN2/PP3PPP/R1BQKB1R w KQ d6"
"QGD: Tarrasch, Bogolyubov variation *","2rq1rk1/pp2ppbp/2n2np1/2Pp4/3P2b1/2N1BN2/PP2BPPP/R2Q1RK1 b - -"
"Giuoco Piano: center-holding variation","r1b1k1nr/ppppqppp/1bn5/4p3/2BPP3/2P2N2/PP3PPP/RNBQK2R w KQkq -"
"QGD: Cambridge Springs defense, 7.cd","r1b1kb1r/pp1n1ppp/2p1pn2/q2P2B1/3P4/2N1PN2/PP3PPP/R2QKB1R b KQkq -"
"Caro-Kann: Goldman (Spielmann) variation *","r1b1kbnr/pppp1ppp/2n2q2/4p3/3P4/2P5/PP2PPPP/RNBQKBNR w KQkq -"
"Ruy Lopez: Marshall, Herman Steiner variation","r1bq1rk1/2p1bppp/p1n2n2/1p1P4/4p3/1BP2N2/PP1P1PPP/RNBQR1K1 w - -"
"Catalan: closed, main line","r1bq1rk1/pp1nbppp/2p1pn2/3p4/2PP4/5NP1/PPQNPPBP/R1B2RK1 b - -"
"English: symmetrical, main line with d3","r1bq1rk1/pp1pppbp/2n2np1/2p5/2P5/2NP1NP1/PP2PPBP/R1BQ1RK1 b - -"
"Sicilian: Dragon, classical, Grigoriev variation","r1bq1rk1/pp2ppbp/2np1np1/8/3NP3/2N1B3/PPPQBPPP/2KR3R b - -"
"Sicilian: Dragon, Yugoslav attack, Rauser variation","r1bq1rk1/pp2ppbp/2np1np1/8/3NP3/2N1BP2/PPPQ2PP/2KR1B1R b - -"
"Giuoco Piano: LaBourdonnais variation","r1bqk1nr/ppp2ppp/1bnp4/8/2BPP3/5N2/PP3PPP/RNBQK2R w KQkq -"
"Sicilian: closed, 6.f4 *","r1bqk1nr/ppp3bp/2np2p1/4pp2/2P5/2NP2P1/PP2PPBP/R1BQK1NR w KQkq -"
"KGD: classical, Hanham variation","r1bqk1nr/pppn1ppp/3p4/2b1p3/4PP2/2N2N2/PPPP2PP/R1BQKB1R w KQkq -"
"Center game: Charousek variation","r1bqk1nr/ppppbppp/2n5/8/4P3/2P1Q3/PP3PPP/RNB1KBNR w KQkq -"
"Ruy Lopez: closed, Averbach variation","r1bqk2r/1pp1bppp/p1np1n2/4p3/B3P3/5N2/PPPP1PPP/RNBQR1K1 w kq -"
"English: Queens Indian, Romanishin variation *","r1bqk2r/pp1p1ppp/2nb1n2/2p1p3/8/1P2PN2/PBPP1PPP/RN1QKB1R w KQkq -"
"Benoni: classical without 9.O-O *","r1bqk2r/pp2bppp/2n2n2/4p3/2Pp4/3P1NP1/PP3PBP/RNBQK2R w KQkq -"
"Giuoco Piano: Moller, bayonet attack","r1bqk2r/ppp1nppp/3p1b2/3P4/2B1R1P1/5N2/PP3P1P/R1BQ2K1 b kq -"
"Nimzo-Indian: classical, Botvinnik variation","r1bqk2r/ppp2ppp/2n1pn2/3p4/2PP4/P1Q5/1P2PPPP/R1B1KBNR w KQkq -"
"French: Tarrasch, Eliskases variation *","r1bqk2r/pppn1ppp/5n2/2bP4/8/4P3/PP3PPP/RNBQKBNR b KQkq -"
"French: Reversed Philidor formation *","r1bqk2r/pppnbppp/3p1n2/4p3/3P4/2N1PN2/PPP2PPP/R1BQKB1R w KQkq -"
"Giuoco Piano","r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq -"
"Ruy Lopez: Four Knights (Tarrasch) variation *","r1bqk2r/pppp1ppp/2n2n2/b3p3/4P3/P1N2N2/1PPP1PPP/R1BQKB1R w KQkq -"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...a6","r1bqkb1r/1p3ppp/p1nppn2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R w KQkq -"
"Ruy Lopez: open, Zukertort variation","r1bqkb1r/2p1nppp/p7/1p1pP3/4n3/1B3N2/PPP2PPP/RNBQ1RK1 w kq -"
"English: Three Knights system *","r1bqkb1r/pp1ppppp/2n2n2/2p5/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"QGD: Tarrasch, Schlechter-Rubinstein system *","r1bqkb1r/pp2pp1p/2n2np1/3p4/2PP4/2N5/PP3PPP/R1BQKBNR w KQkq -"
"Sicilian *","r1bqkb1r/ppp2ppp/2n5/3np3/8/3P1N2/PP2PPPP/RNBQKB1R w KQkq -"
"Pirc: Austrian attack, 6.e5 *","r1bqkb1r/ppp3pp/2n2n2/3p1p2/4p3/3P1NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"Petrov: modern attack, Bardeleben variation","r1bqkb1r/pppp1ppp/2n5/2n1P3/3N4/8/PPP1QPPP/RNB1KB1R w KQkq -"
"Vienna: Mengarini variation *","r1bqkbnr/1ppp1ppp/p1n5/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Robatsch defense *","r1bqkbnr/ppp2ppp/2n5/3pp3/8/6P1/PPPPPPBP/RNBQK1NR w KQkq -"
"Ponziani counter-gambit","r1bqkbnr/pppp2pp/2n5/4pp2/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq -"
"King's Indian: Petrosian system, Keres variation *","r2qk2r/pp2bpp1/2n2nb1/2p1p2p/3pP1PN/3P3P/PPPN1PB1/R1BQ1RK1 w kq -"
"Sicilian: accelerated fianchetto, modern variation with Bc4 *","r2qk2r/ppp2ppp/2n1b3/2bnp3/8/2N2NP1/PP1PPPBP/R1BQK2R w KQkq -"
"Sicilian: Richter-Rauzer, Margate (Alekhine) variation *","r2qk2r/ppp2ppp/2n5/3np3/1b4b1/2NPPN2/PP3PPP/R1BQKB1R w KQkq -"
"QGD: semi-Slav, Abrahams variation *","r2qkb1r/1p1b1ppp/2n1pn2/pBPp4/PP6/2P1P3/5PPP/RNBQK1NR b KQkq -"
"Sicilian: Richter-Rauzer *","r2qkb1r/ppp2ppp/2n5/3np3/6b1/2NP1N2/PP2PPPP/R1BQKB1R w KQkq -"
"QGD: Canal (Venice) variation *","r2qkbnr/pp2pppp/2n5/3p4/2Pp2b1/1Q2PN2/PP3PPP/RNB1KB1R b KQkq -"
"KGD: Falkbeer, Morphy gambit *","r2qkbnr/pppb2pp/2npP3/1B3p2/3p4/5N2/PPP2PPP/RNBQK2R b KQkq -"
"Evans gambit declined, Cordel variation *","rn1qk2r/pbpp1ppp/5n2/1pb1p3/4P3/1BN5/PPPP1PPP/R1BQK1NR w KQkq -"
"Benko gambit: Ne2 variation","rn1qkb1r/4pp1p/3p1np1/2pP4/4P3/2N5/PP2NPPP/R1BQ1K1R b kq -"
"Scotch: Meitner variation *","rn1qkb1r/ppn2ppp/2p1b3/4p3/2B5/2N2Q2/PPPPNPPP/R1B1K2R w KQkq -"
"Alekhine's defense: four pawns attack, Trifunovic variation","rn1qkb1r/ppp1pppp/1n1p4/4Pb2/2PP1P2/8/PP4PP/RNBQKBNR w KQkq -"
"Richter-Veresov attack, Veresov variation","rn1qkb1r/ppp1pppp/5B2/3p1b2/3P4/2N5/PPP1PPPP/R2QKBNR b KQkq -"
"Dutch, 2.Bg5 variation *","rn1qkbnr/ppp1pppp/8/3p4/5Pb1/8/PPPPP1PP/RNBQKBNR w KQkq -"
"QGD Slav: Suchting variation","rnb1kb1r/pp2pppp/1qp2n2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq -"
"Ruy Lopez: Berlin defense, Pillsbury variation *","rnb2rk1/p1p1qppp/1p3n2/8/4p3/2P5/PNPPBPPP/R1BQK2R w KQ -"
"QGA: classical, Furman variation *","rnb2rk1/pp2qppp/5n2/2b5/1PB1p3/P1N1PN2/5PPP/R1BQK2R w KQ -"
"QGD: Lasker defense, main line","rnb2rk1/ppp1qpp1/4p2p/3P4/3P4/2P1PN2/P4PPP/R2QKB1R b KQ -"
"KGA: Silberschmidt gambit *","rnbq1k1r/ppp3pp/5P2/2bpp1PQ/4n3/7N/PPPP1P1P/RNB1KB1R b KQ -"
"King's Indian: Averbakh, 6...c5","rnbq1rk1/pp2ppbp/3p1np1/2p3B1/2PPP3/2N5/PP2BPPP/R2QK1NR w KQ -"
"Benoni: classical, 9.O-O","rnbq1rk1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQ1RK1 b - -"
"Benoni: four pawns attack","rnbq1rk1/pp3pbp/3p1np1/2pP4/4PP2/2N2N2/PP4PP/R1BQKB1R w KQ -"
"QGD: 4.Bg5 Be7, 5.e3 O-O","rnbq1rk1/ppp1bppp/4pn2/3p2B1/2PP4/2N1P3/PP3PPP/R2QKBNR w KQ -"
"Bishop's opening: Wing gambit *","rnbqk1nr/p1pp1ppp/8/1pb1p3/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq -"
"Catalan: closed *","rnbqk1nr/pp2ppbp/6p1/2pp4/3P4/4PN2/PPP2PPP/RNBQKB1R w KQkq -"
"KGD: classical variation","rnbqk1nr/pppp1ppp/8/2b1p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq -"
"KGA: Cunningham, three pawns gambit","rnbqk1nr/pppp1ppp/8/8/2B1P2b/5N2/PPPP3p/RNBQ1R1K b kq -"
"Nimzo-Indian: 4.e3 c5","rnbqk2r/pp1p1ppp/4pn2/2p5/1bPP4/2N1P3/PP3PPP/R1BQKBNR w KQkq -"
"Center game, Kieseritsky variation *","rnbqk2r/ppp2ppp/5n2/2bPp3/1PP5/8/P2P1PPP/RNBQKBNR b KQkq -"
"Two Knights defense *","rnbqk2r/pppp1ppp/8/2b5/N2pP1n1/5N2/PPP2PPP/R1BQKB1R b KQkq -"
"KGA: Lolli gambit (wild Muzio gambit) *","rnbqk2r/pppp2pp/5n2/4pPP1/8/8/PPPP1b1P/RNBQKBNR w KQkq -"
"English: Bellon gambit","rnbqkb1r/p1pp1ppp/5n2/1p4N1/2P1p3/2N5/PP1PPPPP/R1BQKB1R w KQkq -"
"Reti: Nimzovich-Larsen attack *","rnbqkb1r/p1pppppp/1p3n2/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"English: Mikenas-Carls, Sicilian variation","rnbqkb1r/pp1p1ppp/4pn2/2p5/2P1P3/2N5/PP1P1PPP/R1BQKBNR w KQkq -"
"Queen's pawn game *","rnbqkb1r/ppp1pppp/5n2/3p4/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Petrov: modern attack, Symmetrical variation *","rnbqkb1r/ppp2ppp/5n2/3pN3/4P3/8/PPPP1PPP/RNBQKB1R b KQkq -"
"KGA: Allgaier, Schlechter defense *","rnbqkb1r/pppp2p1/8/4pPPp/6n1/5N2/PPPP1P1P/RNBQKB1R b KQkq -"
"English: Jaenisch gambit","rnbqkbnr/p1pppppp/8/1p6/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"Caro-Kann: Gurgenidze counter-attack","rnbqkbnr/p3pppp/2p5/1p1p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"Old Benoni defense","rnbqkbnr/pp1ppppp/8/2p5/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"QGD Slav defense","rnbqkbnr/pp2pppp/2p5/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"QGD: symmetrical (Austrian) defense","rnbqkbnr/pp2pppp/8/2pp4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"Sicilian: closed, Korchnoi variation","rnbqkbnr/pp3ppp/4p3/2pp4/4P3/2N3P1/PPPP1P1P/R1BQKBNR w KQkq -"
"QGD: Tarrasch, von Hennig-Schara gambit","rnbqkbnr/pp3ppp/4p3/3P4/3p4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"Paleface attack *","rnbqkbnr/ppp1p1pp/5p2/3p4/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"KGA: Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit","rnbqkbnr/pppp1ppp/8/8/4Pp2/8/PPPPB1PP/RNBQK1NR b KQkq -"
"Bishop's opening: Calabrese counter-gambit","rnbqkbnr/pppp2pp/8/4pp2/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq -"
"English: Caro-Kann defensive system","rnbqkb1r/pp2pppp/2p2n2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R b KQkq c3"
"Queen's pawn: Torre attack, Wagner gambit","rnbqkb1r/pp1p1ppp/4pn2/2p3B1/3PP3/5N2/PPP2PPP/RN1QKB1R b KQkq e3"
"Caro-Kann: Panov-Botvinnik attack (5...e6)","rnbqk2r/pp3ppp/5n2/3p4/1b1P4/2N2N2/PP3PPP/R1BQKB1R w KQkq -"
"King's Indian: fianchetto variation","rnbq1rk1/ppp1ppbp/3p1np1/8/2PP4/5NP1/PP2PPBP/RNBQ1RK1 b - -"
"Grunfeld: Russian, Keres variation *","2kr3r/pp2bppp/2nqbn2/3pp1B1/8/1NN3P1/PPP1PPBP/R2Q1RK1 w - -"
"Blackburne shilling gambit","r1b1kbnr/pppp1Npp/8/8/4q3/5n2/PPPPBP1P/RNBQKR2 w Qkq -"
"KGA: bishop's gambit, Boden defense","r1b1kbnr/pppp1ppp/2n5/8/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq -"
"Four Knights: symmetrical, Blake variation","r1b2rk1/pp2nppp/2pq1n2/3pp1B1/1b2P2N/1BNP4/PPP2PPP/R2Q1RK1 w - -"
"Ruy Lopez: closed, 7...O-O","r1bq1rk1/2ppbppp/p1n2n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQR1K1 w - -"
"Ruy Lopez: closed, Keres (...Nd7) defense","r1bq1rk1/3nbppp/p2p4/npp1p3/3PP3/2P2N1P/PPB2PP1/RNBQR1K1 w - -"
"QGD: Orthodox defense","r1bq1rk1/pp1nbppp/2p1pn2/3p2B1/2PP4/2N1PN2/PP3PPP/2RQKB1R w K -"
"Dutch: stonewall with Nc3 *","r1bq1rk1/pp2ppbp/2n2np1/2pp4/3P1P2/4PN2/PPP1B1PP/RNBQ1RK1 w - -"
"English, Troger defense *","r1bqk1nr/pp1pppbp/2n3p1/2p5/4P3/2NPB3/PPP2PPP/R2QKBNR b KQkq -"
"English: symmetrical, Rubinstein system *","r1bqk1nr/pp1pppbp/2n3p1/8/2P5/8/PPN1PPPP/RNBQKB1R b KQkq -"
"Evans gambit declined","r1bqk1nr/pppp1ppp/2n5/2b1p3/1PB1P3/5N2/P1PP1PPP/RNBQK2R b KQkq -"
"Scotch: Potter variation","r1bqk1nr/pppp1ppp/2n5/2b5/4P3/1N6/PPP2PPP/RNBQKB1R b KQkq -"
"Two Knights defense: Maroczy variation","r1bqk2r/ppp1bpp1/5n1p/3P4/2P1p3/5N2/PPP1QPPP/RNB1K2R w KQkq -"
"Sicilian: Sozin with ...a6 and ...b5 *","r1bqk2r/ppp2ppp/1bn5/3np3/1P6/P2PPN2/5PPP/RNBQKB1R b KQkq -"
"Evans gambit declined, Lange variation","r1bqk2r/pppp1ppp/1b5n/nP2N3/2B1P3/8/P1PP1PPP/RNBQK2R w KQkq -"
"QGD: Albin counter-gambit, Alapin variation *","r1bqkb1r/pp1npppp/5n2/2pP4/4p3/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"Sicilian: Sozin, not Scheveningen","r1bqkb1r/pp2pppp/2np1n2/8/2BNP3/2N5/PPP2PPP/R1BQK2R b KQkq -"
"Two Knights defense: Lolli attack","r1bqkb1r/ppp2ppp/2n5/3np1N1/2BP4/8/PPP2PPP/RNBQK2R b KQkq -"
"Sicilian: Taimanov variation","r1bqkbnr/pp1p1ppp/2n1p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R b KQkq -"
"Blackmar-Diemer: Lemberg counter-gambit *","r1bqkbnr/ppp2ppp/2n5/3pp3/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq -"
"King's Indian: Averbakh, main line *","r2qk1nr/pp2bppp/2n5/2p1p3/2Pp2b1/3PPNP1/PP3PBP/RNBQ1RK1 b kq -"
"Ruy Lopez: open, Howell attack, Adam variation","r2qk2r/2p1bppp/p1n1b3/1p1pP3/2P1n3/1B3N2/PP2QPPP/RNB2RK1 b kq -"
"Sicilian: accelerated fianchetto, Breyer variation *","r2qkb1r/pp3ppp/2n1b3/2pnp1N1/8/2N3P1/PP1PPPBP/R1BQK2R b KQkq -"
"Sicilian: Richter-Rauzer, Larsen variation *","r2qkb1r/ppp2ppp/2n5/3np3/6b1/2NP1N2/PP1BPPPP/R2QKB1R b KQkq -"
"Caro-Kann: Panov-Botvinnik, Reifir (Spielmann) variation *","r2qkbnr/pp3ppp/2n5/2pp4/3P2b1/1QN2N2/PP2PPPP/R1B1KB1R b KQkq -"
"Ruy Lopez: open, Tarrasch trap","r4rk1/2pqb1pp/p1n1p3/1p1pP3/4R3/1BP5/PP3PPP/RNBQ2K1 b - -"
"QGD: Vienna variation *","rn1qkb1r/pp2pppp/5n2/1Bpp4/3P2b1/4PN2/PPP2PPP/RNBQK2R b KQkq -"
"Alekhine's defense: modern, Vitolins attack","rn1qkb1r/ppp1pppp/1n1p4/3PP3/2P3b1/5N2/PP3PPP/RNBQKB1R b KQkq -"
"QGA: Alekhine defense, Alatortsev variation","rn1qkbnr/1pp2ppp/p3p3/3P4/2B3b1/4PN2/PP3PPP/RNBQK2R b KQkq -"
"French: MacCutcheon, Duras variation","rnbq1k1r/ppp2pp1/4p2p/3pP3/3Pn1Q1/2P5/P1P2PPP/R1B1KBNR b KQ -"
"Dutch defense, Alekhine variation","rnbq1rk1/ppppb1pp/4p3/5p2/2PPn3/5NP1/PP2PPBP/RNBQ1RK1 w - -"
"Philidor: Steinitz variation","rnbqk1nr/ppp1bppp/3p4/4p3/2B1P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq -"
"Queen's Indian: Capablanca variation *","rnbqk2r/pp2ppbp/5np1/1Bpp4/8/1P2PN2/PBPP1PPP/RN1QK2R b KQkq -"
"Dutch defense *","rnbqk2r/pp2ppbp/5np1/2pp4/5P2/4PN2/PPPPB1PP/RNBQ1RK1 b kq -"
"Two Knights defense: Kieseritsky variation *","rnbqk2r/ppp2ppp/3p4/2b5/N2pP1n1/5N2/PPP2PPP/R1BQKB1R w KQkq -"
"Ruy Lopez: Brentano defense *","rnbqk2r/pppp1ppp/5n2/4p3/1b2P1P1/2N5/PPPP1P1P/R1BQKBNR b KQkq -"
"Ruy Lopez: modern Steinitz defense, exchange variation *","rnbqk2r/pppp1ppp/5n2/4p3/4P3/P1PP4/2P2PPP/R1BQKBNR b KQkq -"
"Dutch: Leningrad, main variation","rnbqk2r/ppppp1bp/5np1/5p2/2PP4/5NP1/PP2PPBP/RNBQK2R b KQkq -"
"Sicilian: Najdorf, Zagreb (fianchetto) variation","rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N3P1/PPP2P1P/R1BQKB1R b KQkq -"
"Blumenfeld counter-gambit accepted","rnbqkb1r/p5pp/4pn2/1Ppp4/8/5N2/PP2PPPP/RNBQKB1R w KQkq -"
"Dutch: Staunton gambit, Chigorin variation","rnbqkb1r/pp1pp1pp/2p2n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq -"
"English, Nimzovich, Flohr variation *","rnbqkb1r/pp1ppppp/5n2/2p1P3/8/8/PPPP1PPP/RNBQKBNR b KQkq -"
"Budapest: Adler variation *","rnbqkb1r/pp2pppp/5n2/2p3N1/4p3/8/PPPP1PPP/RNBQKB1R w KQkq -"
"QGD Slav: Soultanbeieff variation","rnbqkb1r/pp3ppp/2p1pn2/8/P1pP4/2N2N2/1P2PPPP/R1BQKB1R w KQkq -"
"Scotch: Goring gambit *","rnbqkb1r/pp3ppp/2p2n2/3Pp3/8/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"QGA: Alekhine defense, Borisenko-Furman variation *","rnbqkb1r/pp3ppp/5n2/2Ppp3/8/P7/1PP1PPPP/RNBQKBNR w KQkq -"
"QGD: Harrwitz attack","rnbqkb1r/ppp2ppp/4pn2/3p4/2PP1B2/2N5/PP2PPPP/R2QKBNR b KQkq -"
"Philidor: Nimzovich variation *","rnbqkb1r/ppp2ppp/5n2/4p3/4p3/3P1N2/PPP2PPP/RNBQKB1R w KQkq -"
"Greco defense *","rnbqkb1r/pppp1ppp/5n2/4p3/4P3/5Q2/PPPP1PPP/RNB1KBNR b KQkq -"
"Petrov: modern attack, main line","rnbqkb1r/pppp1ppp/8/4P3/3Qn3/5N2/PPP2PPP/RNB1KB1R b KQkq -"
"King's knight's gambit *","rnbqkb1r/pppp2p1/5n2/4pP1p/6P1/8/PPPP1P1P/RNBQKBNR w KQkq -"
"Sicilian: wing gambit, Carlsbad variation *","rnbqkbnr/2pp1ppp/P7/4p3/8/8/PP1PPPPP/RNBQKBNR b KQkq -"
"Nimzovich-Larsen attack: modern variation *","rnbqkbnr/p1pppppp/1p6/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq -"
"English: Caro-Kann defensive system","rnbqkbnr/pp2pppp/2p5/3p4/2P5/1P3N2/P2PPPPP/RNBQKB1R b KQkq -"
"French: Tarrasch, Eliskases variation","rnbqkbnr/pp3ppp/4p3/8/2Bp4/5N2/PPPN1PPP/R1BQK2R w KQkq -"
"Modern defense *","rnbqkbnr/ppp1pppp/8/3p4/8/6P1/PPPPPP1P/RNBQKBNR b KQkq -"
"French defense","rnbqkbnr/pppp1ppp/4p3/8/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq -"
"Alekhine's defense: Mokele Mbembe (Bucker) variation *","rnbqkbnr/pppp1ppp/8/4N3/4p3/8/PPPPPPPP/RNBQKB1R b KQkq -"
"Center game","rnbqkbnr/pppp1ppp/8/8/3QP3/8/PPP2PPP/RNB1KBNR b KQkq -"
"KGD: Keene's defense *","rnbqkbnr/pppp3p/6p1/4pp2/4P3/8/PPPPQPPP/RNB1KBNR b KQkq -"
"Dutch, Korchnoi attack","rnbqkbnr/ppppp1pp/8/5p2/3P4/7P/PPP1PPP1/RNBQKBNR b KQkq -"
"Ruy Lopez: closed, Breyer, 10.d4 *","rnbqr1k1/pp3pp1/1bp2n1p/3pp3/1P2P3/P2P1N2/2P1BPPP/RNBQ1RK1 w - -"
"Nimzovich-Larsen attack: Dutch variation","rnbqkbnr/ppppp1pp/8/5p2/8/1P6/P1PPPPPP/RNBQKBNR w KQkq f6"
"Reti: King's Indian attack, Spassky's variation","rnbqkb1r/p1pppppp/5n2/1p6/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq b6"
"English: symmetrical, hedgehog, natural line","rn1q1rk1/pb2bppp/1p1ppn2/2p5/2P5/1PN2NP1/PB1PPPBP/R2Q1RK1 w - -"
"Queen's pawn","rnbqkbnr/pppppppp/8/8/3P4/8/PPP1PPPP/RNBQKBNR b KQkq d3"
"Petrov: modern (Steinitz) attack","rnbqkb1r/pppp1ppp/5n2/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq d3"
"Four knights: Scotch variation","r1bqkb1r/pppp1ppp/2n2n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq d3"
"French: Tarrasch, Haberditz variation","rnbqkbnr/ppp3pp/4p3/3p1p2/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq f6"
"QGD Slav: 2...Bf5","rn1qkbnr/ppp2ppp/4p3/3p1b2/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq -"
"King's Indian: Smyslov system","rnbq1rk1/pp1pppbp/5np1/2p3B1/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQ -"
"Scandinavian: Anderssen counter-attack orthodox attack","r1b1k1nr/ppp2ppp/2n5/q3P3/1b6/2N2N2/PPPB1PPP/R2QKB1R b KQkq -"
"Caro-Kann: Panov-Botvinnik, Reifir (Spielmann) variation","r1b1kb1r/pp2pppp/1qn2n2/3p2B1/2PP4/2N5/PP3PPP/R2QKBNR w KQkq -"
"Nimzo-Indian: classical, Noa variation, main line, 7.Qc2 *","r1b1kbnr/1pq1pppp/p7/2ppN3/3P4/4P3/PPP2PPP/RNBQK2R w KQkq -"
"French: Winawer, advance, poisoned pawn, Euwe-Gligoric variation *","r1bk1bnr/2p2ppp/p1p5/3P4/3Pp3/4P3/PPQ1NP1q/RNB1K1R1 w Q -"
"QGD: Orthodox defense, Rubinstein attack, Grunfeld variation","r1bq1rk1/1p1nbppp/p1p1pn2/3p2B1/2PP4/P1N1PN2/1PQ2PPP/2R1KB1R b K -"
"QGD: Tarrasch, Prague variation, Normal position *","r1bq1rk1/pp2ppbp/2n2np1/3p4/2PP4/2N2N2/PP2BPPP/R1BQ1RK1 b - -"
"Sicilian: Dragon, classical, Richter variation","r1bq1rk1/pp2ppbp/2np1np1/8/3NP3/2N1B3/PPPQBPPP/R4RK1 b - -"
"Nimzo-Indian: 4.e3, main line with 7...Nc6 *","r1bq1rk1/pp3ppp/2nbpn2/1Bpp4/2PP4/2N1PN2/PP3PPP/R1BQ1RK1 b - -"
"King's Indian: orthodox, Aronin-Taimanov, bayonet attack","r1bq1rk1/ppp1npbp/3p1np1/3Pp3/1PP1P3/2N2N2/P3BPPP/R1BQ1RK1 b - -"
"English: Anglo-Grunfeld, Smyslov defense *","r1bqk1nr/pp1pppbp/2N3p1/8/8/6P1/PPP1PP1P/RNBQKB1R b KQkq -"
"King's Indian: Six pawns attack *","r1bqk1nr/pp2b3/2n5/2p1pppp/2P5/2NPPNP1/PP4BP/R1BQ1RK1 w kq -"
"Pirc: Holmov system *","r1bqk1nr/ppp2ppp/2n5/2bpp3/8/3P1NP1/PPP1PP1P/RNBQKB1R w KQkq -"
"Scotch gambit","r1bqk1nr/pppp1ppp/2n5/8/1bB1P3/2P2N2/P4PPP/RNBQK2R b KQkq -"
"Scotch: Goring gambit, Bardeleben variation *","r1bqk2r/pp3ppp/2n2n2/1Bb1p3/8/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"Sicilian: Boleslavsky variation, 7.Nb3 *","r1bqk2r/ppp1bppp/1nn5/4p3/4P3/2NP1N2/PP3PPP/R1BQKB1R w KQkq -"
"Three Knights: Schlechter variation","r1bqk2r/pppp1ppp/2n2n2/3Np3/1b2P3/5N2/PPPP1PPP/R1BQKB1R w KQkq -"
"King's Indian: Kramer system *","r1bqkb1r/pp2nppp/2n5/2ppp3/8/3P1NP1/PPP1PPBP/RNBQK2R w KQkq -"
"Ruy Lopez: Berlin defense, Anderssen variation","r1bqkb1r/ppp2ppp/2Bp1n2/4p3/4P3/3P1N2/PPP2PPP/RNBQK2R b KQkq -"
"French: Rubinstein, Capablanca line *","r1bqkb1r/ppp2ppp/8/3p4/4n3/4PN2/PPP2PPP/R1BQKB1R w KQkq -"
"Two Knights defense","r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Ruy Lopez: modern Steinitz defense","r1bqkbnr/1pp2ppp/p1np4/4p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Nimzo-Indian: Samisch, Romanovsky variation *","r1bqkbnr/4p1pp/p1p2p2/8/2pN1P2/4P3/PP4PP/RNBQK2R b KQkq -"
"Vienna: Fyfe gambit *","r1bqkbnr/ppp2ppp/2n5/3pp3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"King's pawn game","r1bqkbnr/pppp1ppp/2n5/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: open, Malkin variation","r2q1rk1/2p1bppp/p1n1b3/1p1pP3/4n3/1BP2N2/PP1NQPPP/R1B2RK1 b - -"
"King's Indian: Averbakh system *","r2qk1nr/pp2bppp/2n5/2ppp3/6b1/3P1NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"King's Indian: Four pawns attack, main line *","r2qk2r/pp2b1pp/2n1b3/2pnpp2/8/2NP1NP1/PP2PPBP/R1BQ1RK1 w kq -"
"Dutch: Staunton gambit, Nimzovich variation *","r2qkbnr/ppp2ppp/2n5/3pP3/6b1/1P3N2/P1PPP1PP/RNBQKB1R b KQkq -"
"French: MacCutcheon, Lasker variation *","r2qkbnr/pppb1ppp/2B5/3p4/3Pp3/4PN1P/PPP2PP1/RNBQK2R b KQkq -"
"QGD: Lasker defense, Russian variation *","r2r2k1/ppq2ppp/2n1pn2/2bp4/2P5/2N1PN1P/PP1BQPP1/R4RK1 b - -"
"Sicilian: Velimirovic attack *","r3k2r/ppp1qppp/2n1b3/2bnp3/8/2NPPN2/PP2BPPP/R1BQK2R w KQkq -"
"QGD: Semi-Tarrasch, Krause variation *","r3kb1r/pp2pppp/2n5/q1p5/1n1PP1b1/P4N2/1P3PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: exchange, Alekhine variation","r3kbnr/1ppb1ppp/p1p5/8/3NP3/8/PPP2PPP/RNB1K2R w KQkq -"
"Evans gambit: compromised defense, Paulsen variation *","r4rk1/p4ppp/bqn2n2/2b5/B3p3/2N3Q1/PPPPNPPP/R1B1K2R w KQ -"
"Queen's Indian: old main line, 9.Qxc3","rn1q1rk1/pbppbppp/1p2p3/8/2PP4/2Q2NP1/PP2PPBP/R1B2RK1 b - -"
"English: London defensive system","rn1qkb1r/pp2pppp/2p2n2/3p1b2/2P5/1P3NP1/P2PPP1P/RNBQKB1R w KQkq -"
"French: advance, Wade variation","rn2kbnr/pp1b1ppp/1q2p3/2ppP3/3P4/2P2N2/PP3PPP/RNBQKB1R w KQkq -"
"KGA: bishop's gambit, Boren-Svenonius variation","rnb1k1nr/ppp2ppp/3b4/3B4/4Pp1q/8/PPPP2PP/RNBQ1KNR w kq -"
"Sicilian: Quinteros variation","rnb1kbnr/ppqppppp/8/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Dutch: stonewall: Chekhover variation","rnb1qrk1/pp2b1pp/2p1pn2/3p1pB1/2PP4/2N2NP1/PPQ1PPBP/R4RK1 b - -"
"KGA: Lolli gambit, Young variation","rnb2bnr/pppp1k1p/5q2/8/4Pp2/2N1BQ2/PPP3PP/R4RK1 b - -"
"Grunfeld: Russian, Szabo (Boleslavsky) variation","rnbq1rk1/pp2ppbp/2p2np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R w KQ -"
"Nimzo-Indian: 4.e3, Gligoric system with 7...dc","rnbq1rk1/pp3ppp/4pn2/2p5/1bBP4/2N1PN2/PP3PPP/R1BQ1RK1 b - -"
"French: Albin-Alekhine-Chatard attack, Teichmann variation","rnbqk2r/pppnb1pp/4pp2/3pP1B1/3P3P/2N5/PPP2PP1/R2QKBNR w KQkq -"
"King's Indian: Danube gambit","rnbqkb1r/p1pppp1p/5np1/1p1P4/2P5/8/PP2PPPP/RNBQKBNR w KQkq -"
"QGD Slav: 5.e3 (Alekhine variation)","rnbqkb1r/pp2pppp/2p2n2/8/2pP4/2N1PN2/PP3PPP/R1BQKB1R b KQkq -"
"Old Benoni defense *","rnbqkb1r/ppp1pppp/5n2/8/2Pp4/5N2/PP1PPPPP/RNBQKB1R w KQkq -"
"KGA: Kieseritsky, Berlin defense, Riviere variation","rnbqkb1r/ppp2p1p/5n2/3p4/4PpNP/8/PPPP2P1/RNBQKB1R w KQkq -"
"Philidor: exchange variation *","rnbqkb1r/ppp2ppp/5n2/3Pp3/8/3P4/PPP2PPP/RNBQKBNR b KQkq -"
"Philidor: Nimzovich, Locock variation *","rnbqkb1r/ppp2ppp/8/3pp3/4P1n1/3P1N2/PPP2PPP/RNBQKB1R w KQkq -"
"Sicilian, Szen (`anti-Taimanov') variation *","rnbqkb1r/ppp2ppp/8/4p3/1n6/2N1P3/PP1P1PPP/R1BQKBNR w KQkq -"
"Budapest: Adler variation","rnbqkb1r/pppp1ppp/8/4P3/2P3n1/5N2/PP2PPPP/RNBQKB1R b KQkq -"
"KGA: Fischer defense *","rnbqkb1r/pppp2pp/5n2/4pP2/8/3P4/PPP2PPP/RNBQKBNR b KQkq -"
"Bird's opening, Swiss gambit","rnbqkb1r/ppppp1pp/5n2/8/4pPP1/2N5/PPPP3P/R1BQKBNR b KQkq -"
"Corn stalk defense","rnbqkbnr/1ppppppp/8/p7/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Queen's pawn: Keres defense","rnbqkbnr/p1pp1ppp/1p2p3/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"Queen's pawn: English defense","rnbqkbnr/p1pppppp/1p6/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"QGD: Tarrasch defense, Tarrasch gambit","rnbqkbnr/p4ppp/8/1pP5/N2p4/8/PP2PPPP/R1BQKBNR w KQkq b6"
"Dutch defense *","rnbqkbnr/ppp1pp1p/6p1/3p4/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -"
"Dutch, Korchnoi attack *","rnbqkbnr/ppp1ppp1/7p/3p4/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -"
"Queen's pawn *","rnbqkbnr/ppp1pppp/8/3p4/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"KP: Indian opening *","rnbqkbnr/ppp2ppp/3p4/4p3/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Nimzovich-Larsen attack: English variation","rnbqkbnr/pp1ppppp/8/2p5/8/1P6/P1PPPPPP/RNBQKBNR w KQkq c6"
"English: Anglo-Gruenfeld Bremen","rnbq1rk1/ppp1ppbp/3p1np1/8/2P5/2N2NP1/PP1PPPBP/R1BQ1RK1 b - -"
"English: Mikenas-Carls variation","rnbqkb1r/pppp1ppp/4pn2/8/2P1P3/2N5/PP1P1PPP/R1BQKBNR b KQkq e3"
"English: Botvinnik system","r1bqk1nr/ppp2pbp/2np2p1/4p3/2P1P3/2NP2P1/PP3PBP/R1BQK1NR b KQkq e3"
"Pirc-KID-East Indian","rnbq1rk1/ppp1ppbp/3p1np1/8/3PP3/2N3P1/PPP2PBP/R1BQK1NR w KQ -"
"Ruy Lopez: Noah's ark trap","r1bqkbnr/5ppp/p2p4/1pp5/3QP3/1B6/PPP2PPP/RNB1K2R w KQkq c6"
"Catalan: Lobron-Morozevich variation","rnbqk2r/pp3ppp/4pn2/2pp4/1bPP4/5NP1/PP1BPP1P/RN1QKB1R w KQkq c6"
"King's Indian: orthodox, Bonsch-Gurevich variation","r1b2rk1/ppp2pb1/n3q1pp/1BP1p3/4Pn2/2N1BN1P/PP3PP1/R2QR1K1 b - -"
"Two Knights defense: Goring variation","r1b1kb1r/p1q2pp1/2p2n1p/n3N3/4p3/8/PPPPBPPP/RNBQK2R w KQkq -"
"Queen's Indian: old main line, 9.Qxc3 *","r1b2rk1/pp2ppbp/2q2np1/2pp4/8/1P2P3/PBPPBPPP/RN1Q1RK1 w - -"
"Benoni: fianchetto, 9...Nbd7","r1bq1rk1/pp1n1pbp/3p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"Nimzo-Indian: 4.e3, Gligoric system with 7...Nbd7","r1bq1rk1/pp1n1ppp/4pn2/2pp4/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 w - -"
"King's Indian: orthodox variation *","r1bq1rk1/pp2bppp/2n2n2/2ppp3/4P3/3P1NP1/PPP2PBP/RNBQ1RK1 w - -"
"Sicilian: Scheveningen, classical variation with ...Qc7 and ...Nc6 *","r1bq1rk1/ppp1b1pp/2n5/3npp2/8/P1NPPN2/1PQ2PPP/R1B1KB1R b KQ -"
"Sicilian: Scheveningen, classical, Nd7 system *","r1bq1rk1/ppp1bppp/2n5/3np3/8/P2PPN2/1P1N1PPP/R1BQKB1R b KQ -"
"Evans gambit","r1bqk1nr/ppp2ppp/2np4/b3p3/2B1P3/2P2N2/P2P1PPP/RNBQ1RK1 w kq -"
"Vienna game *","r1bqk1nr/pppp1ppp/2n5/2b1p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"Ruy Lopez: Berlin defense, Winawer attack","r1bqk2r/pnppbppp/2p5/4P3/3N4/8/PPP1QPPP/RNB2RK1 b kq -"
"Nimzo-Indian: Spielmann, Stahlberg variation","r1bqk2r/pp1p2pp/2n1p3/2n2p2/1bP5/2N2NP1/PPQBPP1P/R3KB1R b KQkq -"
"Sicilian: accelerated fianchetto, modern variation with Bc4","r1bqk2r/pp1pppbp/2n2np1/8/2BNP3/2N1B3/PPP2PPP/R2QK2R b KQkq -"
"QGD semi-Slav: Meran, Wade variation *","r1bqk2r/pp3ppp/2nbpn2/3p4/1P6/2P1PN2/PB1N1PPP/R2QKB1R b KQkq -"
"Four Knights: Rubinstein counter-gambit, Bogolyubov variation *","r1bqk2r/pppp2pp/2n5/3Npp2/1b2n3/5N2/PPPPQPPP/R1B1KB1R w KQkq -"
"Ruy Lopez: Four Knights (Tarrasch) variation","r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"Ruy Lopez: Anderssen variation","r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/3P1N2/PPP2PPP/RNBQK2R b KQkq -"
"Ruy Lopez: Wormald (Alapin) attack","r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/5N2/PPPPQPPP/RNB1K2R b KQkq -"
"Grunfeld: Three Knights variation *","r1bqkb1r/pp2pppp/2n2n2/2pp4/3P4/5NP1/PPP1PPBP/RNBQK2R b KQkq -"
"Sicilian: classical","r1bqkb1r/pp2pppp/2np1n2/8/3NP3/2N5/PPP1BPPP/R1BQK2R b KQkq -"
"Pterodactyl defense *","r1bqkb1r/pp3ppp/2n2n2/2ppp3/Q1P5/3P2P1/PP2PPBP/RNB1K1NR b KQkq -"
"Sicilian: Sozin, 7.Be3","r1bqkb1r/pp3ppp/2nppn2/8/2BNP3/2N1B3/PPP2PPP/R2QK2R b KQkq -"
"Three Knights: Steinitz variation *","r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/2N3P1/PPPP1P1P/R1BQKBNR b KQkq -"
"Amsterdam attack *","r1bqkbnr/p2p1ppp/1pn1p3/2p5/4P3/2NP1N2/PPP2PPP/R1BQKB1R b KQkq -"
"Ruy Lopez: open Berlin defense, l'Hermet variation","r1bqkb1r/pppp1ppp/2nn4/1B2P3/8/5N2/PPP2PPP/RNBQ1RK1 b kq -"
"Nimzo-Indian: Samisch variation *","r1bqkbnr/4p1pp/p1p2p2/3p4/2Pp4/4PN2/PP3PPP/RNBQK2R w KQkq -"
"English: symmetrical variation","r1bqkbnr/pp1ppppp/2n5/2p5/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq -"
"QGD: Tarrasch, von Hennig-Schara gambit *","r1bqkbnr/pp2pppp/2n5/3P4/3p4/4P3/PP3PPP/RNBQKBNR b KQkq -"
"QGD: exchange variation *","r1bqkbnr/pp2pppp/2n5/3p4/3p4/4PN2/PPP2PPP/RNBQKB1R w KQkq -"
"Evans gambit declined, Pavlov variation *","r2qk2r/p1pn1ppp/8/3pp3/Np2b1Q1/1B6/PPP2K1P/R1B3R1 w kq -"
"QGD: 4.Bg5 Be7, 5.e3 O-O *","r2qkbnr/pp3ppp/2n1p3/2pp4/3P2b1/4PN2/PPP1BPPP/RNBQ1RK1 b kq -"
"French: Albin-Alekhine-Chatard attack, Spielmann variation *","r2qkbnr/ppp2pp1/2n5/3p3p/3Pp1b1/4P3/PPPNBPPP/RNBQ1RK1 b kq -"
"Queen's Indian: Yates variation *","rn1qk2r/pp1bppbp/5np1/1Bpp4/P7/1P2PN2/1BPP1PPP/RN1QK2R b KQkq -"
"Center game: l'Hermet variation *","rnb1kbnr/ppp2ppp/4q3/4p3/5P2/2N5/PPPP2PP/R1BQKBNR b KQkq -"
"Budapest: Fajarowicz, Steiner variation *","rnb1kbnr/ppq1pppp/8/2p1N3/4p3/8/PPPP1PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: Noah's ark trap *","rnb1r1k1/ppp2ppp/1b6/3qp3/1PP5/P2P1N2/4BPPP/R1BQK2R b KQ -"
"Queen's Indian: Euwe variation *","rnbq1rk1/p3ppbp/1p3np1/2pp4/8/1P2PN2/PBPPBPPP/RN1Q1RK1 w - -"
"King's Indian: Four pawns attack, dynamic line","rnbq1rk1/pp2ppbp/3p1np1/2pP4/2P1PP2/2N2N2/PP4PP/R1BQKB1R b KQ -"
"Sicilian: Kan, Gipslis variation *","rnbq1rk1/pp3ppp/3b4/2pnp3/8/P2PPNP1/1P3P1P/RNBQKB1R b KQ -"
"Rousseau gambit *","rnbqk2r/pppp1ppp/5n2/2b1p3/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq -"
"Grunfeld: Opocensky variation","rnbq1rk1/ppp1ppbp/5np1/3p4/2PP4/2N1PN2/PP1B1PPP/R2QKB1R b KQ -"
"Grunfeld: Russian variation with e4","rnbq1rk1/ppp1ppbp/5np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R b KQ -"
"Ruy Lopez: open Berlin defense, Showalter variation *","rnbq1rk1/ppp2ppp/5n2/b2p4/4P3/2NN4/PPPP1PPP/R1BQKB1R w KQ -"
"Ruy Lopez: Moller defense *","rnbq1rk1/pppp1ppp/5n2/b3p3/2B1P3/P1N2N2/1PPP1PPP/R1BQK2R b KQ -"
"French: Winawer, advance, 5.a3","rnbqk1nr/pp3ppp/4p3/2ppP3/1b1P4/P1N5/1PP2PPP/R1BQKBNR b KQkq -"
"Giuoco Piano: close variation *","rnbqk2r/pp1p1ppp/2p2n2/2b1p3/2B1P3/2N5/PPPPQPPP/R1B1K1NR b KQkq -"
"Ruy Lopez: modern Steinitz defense *","rnbqk2r/pp1p1ppp/2p2n2/b3p3/4P3/P1NP4/1PPB1PPP/R2QKBNR b KQkq -"
"English: Romanishin gambit *","rnbqk2r/pp1pppbp/5np1/2p5/1P6/P3PN2/2PP1PPP/RNBQKB1R b KQkq -"
"Queen's Indian: Marienbad system *","rnbqk2r/ppp1ppbp/5np1/3p4/2P5/1P3N2/PB1PPPPP/RN1QKB1R b KQkq -"
"Philidor: Lopez counter-gambit *","rnbqk2r/pppp1ppp/5n2/2b1p3/4PP2/3P4/PPP3PP/RNBQKBNR b KQkq -"
"Ruy Lopez: Vinogradov variation *","rnbqk2r/pppp1ppp/5n2/4p3/1b2P3/2N5/PPPPQPPP/R1B1KBNR b KQkq -"
"Benko gambit half accepted","rnbqkb1r/3ppppp/p4n2/1PpP4/8/8/PP2PPPP/RNBQKBNR w KQkq -"
"QGD semi-Slav: anti-Meran gambit","rnbqkb1r/p4p2/2p1pn1p/1p2P1N1/2pP3B/2N5/PP3PPP/R2QKB1R b KQkq -"
"Sicilian: Acton extension *","rnbqkb1r/pp1p1ppp/5n2/2p1p3/2P5/6PB/PP1PPP1P/RNBQK1NR b KQkq -"
"QGD: Semi-Tarrasch with e3","rnbqkb1r/pp3ppp/4p3/2pn4/3P4/2N1PN2/PP3PPP/R1BQKB1R b KQkq -"
"Alekhine's defense: four pawns attack, Ilyin-Genevsky variation *","rnbqkb1r/pp4pp/5n2/3p2B1/2p5/1NN1P3/PPP1P1PP/R2QKB1R w KQkq -"
"Scotch: Romanishin variation *","rnbqkb1r/ppp2ppp/1n6/1B2p3/8/2N5/PPPP1PPP/R1BQK1NR b KQkq -"
"Petrov: Cozio (Lasker) attack","rnbqkb1r/ppp2ppp/3p4/8/4n3/5N2/PPPPQPPP/RNB1KB1R b KQkq -"
"Sicilian: Hungarian variation *","rnbqkb1r/pppp1ppp/5n2/4p3/2P5/6P1/PP1PPP1P/RNBQKBNR b KQkq -"
"Caro-Kann: anti-anti-Caro-Kann defense *","rnbqkbnr/pp1p1ppp/8/2p1p3/3P4/2P5/PP2PPPP/RNBQKBNR b KQkq -"
"Neo-Grunfeld defense *","rnbqkbnr/pp2p1pp/5p2/2pp4/3P4/5NP1/PPP1PP1P/RNBQKB1R b KQkq -"
"Caro-Kann: Two Knights variation","rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"Sicilian, Chekhover variation","rnbqkbnr/pp2pppp/3p4/8/3QP3/5N2/PPP2PPP/RNB1KB1R b KQkq -"
"Danish gambit *","rnbqkbnr/pp3ppp/2p5/3Pp3/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Alekhine's defense: four pawns attack, Trifunovic variation *","rnbqkbnr/pp4pp/8/2pp1p2/4pB2/1N1P4/PPP1PPPP/RN1QKB1R b KQkq -"
"Levitsky attack (Queen's bishop attack)","rnbqkbnr/ppp1pppp/8/3p2B1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq -"
"Reti: old Indian attack","rnbqkbnr/ppp1pppp/8/3p4/8/3P1N2/PPP1PPPP/RNBQKB1R b KQkq -"
"English opening","rnbqkbnr/ppp2ppp/3p4/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R b KQkq -"
"French: Rubinstein variation","rnbqkbnr/ppp2ppp/4p3/8/3Pp3/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"Halasz gambit *","rnbqkbnr/ppp3pp/8/3Ppp2/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"KGA: Villemson (Steinitz) gambit *","rnbqkbnr/ppp3pp/8/3ppP2/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"French defense","rnbqkbnr/pppp1ppp/4p3/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -"
"KP: Patzer opening","rnbqkbnr/pppp1ppp/8/4p2Q/4P3/8/PPPP1PPP/RNB1KBNR b KQkq -"
"KP: Nimzovich defense *","rnbqkbnr/pppp1ppp/8/4p3/8/2N5/PPPPPPPP/R1BQKBNR b KQkq -"
"Dutch, Manhattan (Alapin, Ulvestad) variation","rnbqkbnr/ppppp1pp/8/5p2/3P4/3Q4/PPP1PPPP/RNB1KBNR b KQkq -"
"Anti-Borg (Desprez) opening","rnbqkbnr/pppppppp/8/8/7P/8/PPPPPPP1/RNBQKBNR b KQkq -"
"Ruy Lopez: Marshall, main line, 14...Qh3 *","rnbqr1k1/pp3p1p/1bp3pQ/3p4/1P1N4/P1PB4/5PPP/R1B2RK1 b - -"
"Ruy Lopez: closed, Breyer, Simagin variation *","rnbqr1k1/pp3pp1/1bp4p/3pp2n/1P2P3/P2P1N2/2PNBPPP/R1BQ1RK1 w - -"
"Bird's opening: Swiss gambit","rnbqkb1r/ppppp1pp/5n2/8/4pPP1/2N5/PPPP3P/R1BQKBNR b KQkq g3"
"Reti opening","rnbqkbnr/ppp1pppp/8/3p4/8/5N2/PPPPPPPP/RNBQKB1R w KQkq d6"
"Centre game: l'Hermet variation","r1bqkbnr/pppp2pp/2n5/5p2/4P3/4Q3/PPP2PPP/RNB1KBNR w KQkq f6"
"Alekhine's defence: O'Sullivan gambit","rnbqkb1r/p1pppppp/8/1p1nP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq b6"
"Sicilian: Alapin's variation (3.c3)","rnbqkb1r/pp1p1ppp/4p3/3nP3/3P4/5N2/PP3PPP/RNBQKB1R b KQkq -"
"Ruy Lopez: modern Steinitz defence, Rubinstein-Geller variation","r2q1rk1/1ppnbppp/p2p4/3Pp3/2P1P2n/2N1BN2/PP3PPP/R2Q1RK1 w - -"
"Ruy Lopez: closed (10...c5)","r1bq1rk1/4bppp/p2p1n2/npp1p3/4P3/2P2N1P/PPBP1PP1/RNBQR1K1 w - c6"
"Ruy Lopez: closed, Chigorin (...cxd4 ...Bb7)","2r2rk1/1bq1bppp/p4n2/np1pp3/3PP3/5N1P/PP3PP1/RBBQRNK1 w - -"
"Blackmar-Diemer: Teichmann defence","rn1qkb1r/ppp1pppp/5n2/8/3P2b1/2N2N2/PPP3PP/R1BQKB1R w KQkq -"
"QGD Slav (with Nc3)","rnbqkb1r/4pppp/p1p2n2/1p1p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R w KQkq b6"
"QGD: Stonewall variation","rnbqkb1r/pp4pp/2p1p3/3p1p2/2PPn3/3BPN2/PP1N1PPP/R1BQK2R w KQkq f6"
"QGD: Orthodox defense, Bd3 line *","2rqk2r/pp3ppp/2n1pn2/2bp4/3N4/2P1P3/PP1NQPPP/R1B2RK1 b k -"
"French: MacCutcheon, Duras variation *","r1b1kbnr/p1p2ppp/2p5/3pN1q1/3Pp3/4P2P/PPP2PP1/RNBQ1K1R w kq -"
"Sicilian: Flohr variation","r1b1kbnr/ppqppppp/2n5/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq -"
"QGD: Orthodox defense, Bd3 line, Janowski variation","r1bq1rk1/pp1nbppp/2p1p3/3n2B1/2BP3P/2N1PN2/PP3PP1/2RQK2R b K -"
"QGD: Orthodox defense, Rubinstein attack (with Rc1)","r1bq1rk1/pp1nbppp/2p1pn2/3p2B1/2PP4/2N1PN2/PPQ2PPP/2R1KB1R b K -"
"King's Indian: orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation) *","r1bq1rk1/pp2bppp/2n2n2/2ppp3/4P3/2NP1NP1/PPP2PBP/R1BQ1RK1 b - -"
"Old Indian: Dus-Khotimirsky variation *","r1bqk1nr/pp3ppp/2nbp3/2pp4/4P3/3P1N2/PPPN1PPP/R1BQKB1R w KQkq -"
"Vienna game *","r1bqk1nr/pppp1ppp/2n5/2b1N3/4P3/8/PPPP1PPP/RNBQKB1R b KQkq -"
"Nimzo-Indian: Spielmann, Karlsbad variation","r1bqk2r/pp1p1ppp/2n1p3/2P5/1bP5/1QN2N2/PP1nPPPP/R3KB1R w KQkq -"
"Queen's Indian: anti-Queen's Indian system *","r1bqk2r/pp2ppbp/2n2np1/2pp4/8/1P2PN2/PBPPBPPP/RN1QK2R w KQkq -"
"Giuoco Piano","r1bqk2r/ppp2ppp/2n2n2/2bpP3/2Bp4/2P2N2/PP3PPP/RNBQK2R w KQkq d6"
"Nimzo-Indian: classical, Milner-Barry (Zurich) variation","r1bqk2r/ppp2ppp/2nppn2/8/1bPP4/2N2N2/PPQ1PPPP/R1B1KB1R w KQkq -"
"Giuoco piano: Rosentreter variation","r1bqk2r/pppp1p2/5n1p/4p1p1/2BnPP1B/8/PPP3PP/RN1Q1RK1 b kq -"
"Giuoco Pianissimo","r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/3P1N2/PPP2PPP/RNBQK2R w KQkq -"
"Ruy Lopez: open, Riga variation","r1bqkb1r/1ppp1ppp/p1n5/8/B2pn3/5N2/PPP2PPP/RNBQ1RK1 w kq -"
"French: Winawer, advance, positional main line *","r1bqkb1r/2p2ppp/p1p2n2/3p4/2PPp3/4P3/PP2NPPP/RNBQK2R w KQkq -"
"Sicilian: Sveshnikov variation","r1bqkb1r/5p1p/p1np4/1p1Npp2/4P3/N7/PPP2PPP/R2QKB1R w KQkq -"
"Benoni: Nimzovich (knight's tour) variation *","r1bqkb1r/pp1npppp/2n5/8/2Pp4/3P1NP1/PP3P1P/RNBQKB1R w KQkq -"
"Bogo-Indian defense, Grunfeld variation *","r1bqkb1r/pp1npppp/5n2/1Bpp4/8/4PN2/PPPP1PPP/RNBQK2R w KQkq -"
"Benoni: fianchetto variation *","r1bqkb1r/pp2pp1p/2n2np1/8/2Pp4/3P1NP1/PP3P1P/RNBQKB1R w KQkq -"
"QGD: Tarrasch defense *","r1bqkb1r/pp2pppp/2n2n2/3p4/2PP4/8/PP3PPP/RNBQKBNR w KQkq -"
"Blackmar-Diemer: Euwe defense *","r1bqkb1r/ppp3pp/2n2n2/3p4/8/4PN2/PPP2PPP/RNBQKB1R b KQkq -"
"Sicilian: Najdorf, 6.f4 *","r1bqkb1r/ppp3pp/2n5/3npp2/8/P2P1N2/1P2PPPP/RNBQKB1R w KQkq -"
"Ponziani: Reti variation","r1bqkb1r/ppppnppp/2n5/4p3/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: Berlin defense, Mortimer variation","r1bqkb1r/ppppnppp/5n2/1B2p3/4P3/3P1N2/PPP2PPP/RNBQK2R w KQkq -"
"Ruy Lopez: exchange, Gligoric variation","r1bqkbnr/1pp3pp/p1p2p2/4p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 w kq -"
"Sicilian: Labourdonnais-Lowenthal (Kalashnikov) variation","r1bqkbnr/pp3ppp/2np4/1N2p3/4P3/8/PPP2PPP/RNBQKB1R w KQkq -"
"French: Rubinstein variation *","r1bqkbnr/ppp2ppp/2n5/3pP3/8/4P3/PPP2PPP/RNBQKBNR b KQkq -"
"French: Pelikan variation *","r1bqkbnr/pppp2pp/2n5/4pp2/3P4/4P3/PPP2PPP/RNBQKBNR w KQkq -"
"Catalan: closed, Spassky gambit *","r1br2k1/p1q1ppbp/1pn2np1/2pp4/1P1P4/2P1PN2/PB1NBPPP/R2Q1RK1 b - -"
"Ruy Lopez: closed Berlin defense, Bernstein variation *","r2q1rk1/ppp2ppp/2n2n2/3pp3/1b2P1b1/2NP1N2/PPPBBPPP/R2QK2R w KQ -"
"Ruy Lopez: Archangelsk (counterthrust) variation","r2qkb1r/1bpp1ppp/p1n2n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQ1RK1 w kq -"
"QGD: exchange, Samisch variation *","r2qkb1r/pp2pppp/2n2n2/3p1b2/3P4/5N2/PPPN1PPP/R1BQKB1R w KQkq -"
"QGD: Neo-orthodox variation, 7.Bh4 *","r2qkb1r/pp3ppp/2n1pn2/2pp3b/3P4/4PN1P/PPP1BPP1/RNBQ1RK1 w kq -"
"Sicilian: Dragon, Yugoslav attack *","r2qkb1r/ppp3pp/2n1bp2/3np3/8/3P1NP1/PP2PPBP/RNBQK2R w KQkq -"
"Ruy Lopez: old Steinitz defense, Nimzovich attack","r2qkb1r/pppb1ppp/2Bp1n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQK2R b KQkq -"
"QGD: Capablanca anti-Cambridge Springs variation *","r2qkbnr/1p3ppp/p1n1p3/2pp4/3P2b1/2P1PN2/PP1N1PPP/R1BQKB1R w KQkq -"
"Caro-Kann: Panov-Botvinnik, Herzog defense *","r2qkbnr/pp3ppp/2n5/2P5/N2p2b1/5N2/PP2PPPP/R1BQKB1R b KQkq -"
"Sicilian: Dragon, Yugoslav attack, 9.Bc4 *","r3k2r/pppq2pp/2n1bp2/2bnp3/8/2NP1NP1/PP2PPBP/R1BQ1RK1 w kq -"
"Grunfeld defense: Smyslov, Yugoslav variation","rn1q1rk1/pp1nppbp/6p1/2p5/3PP1b1/1QN1BN2/PP3PPP/R3KB1R w KQ -"
"English: Capablanca's variation","rn1qkb1r/pp2pppp/2p2n2/3p4/2P3b1/1P3N2/PB1PPPPP/RN1QKB1R w KQkq -"
"QGD Slav: Krause attack","rn1qkb1r/pp2pppp/2p2n2/4Nb2/P1pP4/2N5/1P2PPPP/R1BQKB1R b KQkq -"
"French: Winawer, classical variation","rnb1k1nr/ppq2ppp/4p3/2ppP3/3P4/P1P5/2P2PPP/R1BQKBNR w KQkq -"
"QGD: Semi-Tarrasch, San Sebastian variation","rnb1k2r/pp3ppp/4p3/q7/1b1PP3/5N2/P2B1PPP/R2QKB1R w KQkq -"
"Center game *","rnb1kbnr/ppp2ppp/8/3qp3/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Grunfeld: Grunfeld gambit accepted","rnb2rk1/ppB1ppbp/6p1/3q4/3P4/4P3/PP3PPP/R2QKBNR b KQ -"
"KGA: Allgaier, Walker attack","rnbq1bnr/pppp1k2/7p/8/2B1PppP/8/PPPP2P1/RNBQK2R b KQ -"
"KGA: bishop's gambit, Bryan counter-gambit *","rnbq1knr/pppp2pp/8/2b1pP1Q/1P6/8/P1PP1PPP/RNB1KBNR b KQ -"
"King's Indian: fianchetto, Yugoslav, 7.O-O","rnbq1rk1/pp2ppbp/3p1np1/2p5/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - -"
"King's Indian: Andersson variation","rnbq1rk1/ppp2pbp/3p1np1/4P3/2P1P3/2N2N2/PP2BPPP/R1BQK2R b KQ -"
"Nimzo-Indian: 4.e3 O-O, 5.Bd3 d5","rnbq1rk1/ppp2ppp/4pn2/3p4/1bPP4/2NBP3/PP3PPP/R1BQK1NR w KQ -"
"KGA: bishop's gambit, Steinitz defense *","rnbqk1nr/pppp2pp/8/2b1pP2/8/8/PPPPNPPP/RNBQKB1R b KQkq -"
"Bishop's opening: Greco gambit *","rnbqk1nr/pppp2pp/8/2b1pp2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Nimzo-Indian: Samisch, O'Kelly variation","rnbqk2r/p2p1ppp/1p2pn2/2p5/2PP4/P1P1P3/5PPP/R1BQKBNR w KQkq -"
"Reti: King's Indian attack, Pachman system","rnbqk2r/ppp1npbp/6p1/3pp3/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"Bogo-Indian defense","rnbqk2r/pppp1ppp/4pn2/8/1bPP4/5N2/PP2PPPP/RNBQKB1R w KQkq -"
"English opening: Agincourt variation *","rnbqkb1r/pp1ppp1p/5np1/2p5/3P4/4P3/PPP2PPP/RNBQKBNR w KQkq -"
"Alekhine's defense: modern, Vitolins attack *","rnbqkb1r/pp3ppp/5n2/2p3B1/3pp3/1N1P4/PPP1PPPP/RN1QKB1R w KQkq -"
"Alekhine's defense: exchange variation","rnbqkb1r/ppp1pppp/1n1P4/8/2PP4/8/PP3PPP/RNBQKBNR b KQkq -"
"Petrov: Paulsen attack","rnbqkb1r/ppp2ppp/3p1n2/8/2N1P3/8/PPPP1PPP/RNBQKB1R b KQkq -"
"Petrov: classical attack *","rnbqkb1r/ppp2ppp/5n2/3pN3/8/3P4/PPP2PPP/RNBQKB1R w KQkq -"
"Petrov's defense","rnbqkb1r/pppp1ppp/5n2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"KP: Nimzovich defense *","rnbqkb1r/pppp1ppp/5n2/4p3/8/2N5/PPPPPPPP/R1BQKBNR w KQkq -"
"KGD: Falkbeer, Tartakower variation *","rnbqkb1r/pppp2pp/5n2/4pp2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -"
"QGD: Janowski variation","rnbqkbnr/1pp2ppp/p3p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"Reti: advance variation","rnbqkbnr/ppp1pppp/8/8/2Pp4/5N2/PP1PPPPP/RNBQKB1R w KQkq -"
"Center game *","rnbqkbnr/ppp2ppp/8/3Pp3/8/8/PPPP1PPP/RNBQKBNR b KQkq -"
"Dutch: Staunton gambit *","rnbqkbnr/ppp2ppp/8/3pp3/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -"
"Blackmar-Diemer gambit *","rnbqkbnr/ppp3pp/5p2/3pp3/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"Giuoco Piano: Tarrasch variation *","rnbqr1k1/1p3pp1/2p2n1p/p1bpp3/4P3/PBNP1N2/1PP1QPPP/R1B1K2R w KQ -"
"Ruy Lopez: closed, Breyer defense *","rnbqr1k1/pp1p1pp1/1bp2n1p/4p3/1P2P3/P2P1N2/2P1BPPP/RNBQ1RK1 b - -"
"Ruy Lopez: Marshall counter-attack *","rnbqr1k1/pp1p1ppp/1bp2n2/4p3/1P1PP3/P1N2N2/2P1BPPP/R1BQ1RK1 b - -"
"Petrov: classical attack, Marshall trap *","rnbqr1k1/pp3ppB/3b1n2/3pN1B1/3p1P2/8/PPP3PP/RN1Q1RK1 b - -"
"Two Knights: Max Lange attack, Loman defense *","rnbqr1k1/ppp2ppp/8/2PP4/2B3n1/2N1BpP1/PPP2P1P/R2QK2R b KQ -"
"Bird: From gambit","rnbqkbnr/pppp1ppp/8/4p3/5P2/8/PPPPP1PP/RNBQKBNR w KQkq e6"
"English: symmetrical variation","rnbqkbnr/pp1ppppp/8/2p5/2P5/8/PP1PPPPP/RNBQKBNR w KQkq c6"
"French: Tarrasch, open variation, main line","r1bqk1nr/pp3ppp/2nb4/1Bpp4/3P4/5N2/PPPN1PPP/R1BQK2R w KQkq -"
"Old Indian: Ukrainian variation","rnbqkb1r/ppp2ppp/3p1n2/4p3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq e6"
"Vienna: Steinitz gambit, Zukertort defence","r1b1kbnr/ppp2ppp/2n5/3p4/3PPp1q/2N5/PPP1K1PP/R1BQ1BNR w kq d6"
"Scandinavian defence","rnbqkb1r/ppp1pppp/5n2/3P4/3P4/8/PPP2PPP/RNBQKBNR b KQkq d3"
"Sicilian: Alapin's variation (3.c3)","rnb1kbnr/pp3ppp/4p3/2pq4/8/2P2N2/PP1P1PPP/RNBQKB1R w KQkq -"
"Four knights: Rubinstein counter-gambit, Bogolyubov variation","r1b1kb1r/ppppqppp/5n2/1B2N3/3nPP2/2N5/PPPP2PP/R1BQK2R b KQkq f3"
"Sicilian: dragon, Yugoslav attack, Byrne variation","r1bq1rk1/1p2ppbp/2np1np1/p7/2BNP3/2N1BP2/PPPQ2PP/R3K2R w KQ a6"
"Queen's gambit","rnbqkbnr/ppp1pppp/8/3p4/2PP4/8/PP2PPPP/RNBQKBNR b KQkq c3"
"QGD Slav: 4.Qc2","rnbqkb1r/ppp1pppp/5n2/8/2pP4/5N2/PPQ1PPPP/RNB1KB1R b KQkq -"
"QGD: semi-Slav, Stoltz variation","r1bq1rk1/pp1n1ppp/2pbpn2/8/2pP4/2N1PN2/PPQ1BPPP/R1B2RK1 w - -"
"QGD: semi-Slav (Qc2/Bd3)","r1b2rk1/pp1nqppp/2pbpn2/8/2BP4/2N1PN1P/PPQ2PP1/R1B2RK1 b - -"
"Nimzo-Indian: 4.e3, Gligoric system (with 7...dxc4)","rnbq1rk1/pp3ppp/4pn2/8/1bBP4/2N2N2/PP3PPP/R1BQ1RK1 b - -"
"King's Indian: Saemisch, orthodox variation","rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N1BP2/PP4PP/R2QKBNR w KQ e6"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 defense, 9...Nxd4 *","2kr1b1r/ppp3pp/2n5/3qpp2/6b1/3PPN2/PP2BPPP/R1BQ1RK1 w - -"
"Center game: Kupreichik variation *","2kr3r/pppb1ppp/2n1q2n/1Bb1p3/8/2NP1N2/PPP2PPP/R1BQR1K1 w - -"
"Sicilian: Scheveningen, classical","r1b1kb1r/1pq2ppp/p1nppn2/8/3NPP2/2N1B3/PPP1B1PP/R2Q1RK1 b kq -"
"English: symmetrical, main line with b3 *","r1bq1rk1/p2pppbp/1pn2np1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQ1RK1 w - -"
"King's Indian: Six pawns attack","r1bq1rk1/pp4bp/2nppnp1/2p5/2P1PPPP/2N5/PP2B3/R1BQK1NR b KQ -"
"Grunfeld: Pachman variation","r1bq1rk1/pppnppbp/5np1/6N1/2BP4/1QN1P3/PP3PPP/R1B1K2R b KQ -"
"Ruy Lopez: Worrall attack","r1bqk2r/1pppbppp/p1n2n2/4p3/B3P3/5N2/PPPPQPPP/RNB2RK1 b kq -"
"Ruy Lopez: closed, 7...d6, 8.d4","r1bqk2r/2p1bppp/p1np1n2/1p2p3/3PP3/1B3N2/PPP2PPP/RNBQR1K1 b kq -"
"Nimzo-Indian: Spielmann, 4...c5, 5.dc Nc6","r1bqk2r/pp1p1ppp/2n1pn2/2P5/1bP5/1QN5/PP2PPPP/R1B1KBNR w KQkq -"
"Four Knights: double Ruy Lopez *","r1bqk2r/pppp1ppp/2n2n2/1B2p3/1b2P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"Four Knights: Ranken variation *","r1bqk2r/pppp1ppp/2n2n2/4p3/4P3/P1b2N2/1PPP1PPP/R1BQKB1R w KQkq -"
"Hungarian defense: Tartakower variation","r1bqk2r/ppppbppp/2n5/4P3/2Bpn3/2P2N2/PP3PPP/RNBQK2R w KQkq -"
"QGD semi-Slav *","r1bqkb1r/pp2pppp/2n2n2/2pp4/3P4/2P1PN2/PP3PPP/RNBQKB1R b KQkq -"
"QGD semi-Slav: 5...Nd7 *","r1bqkb1r/pp3ppp/2n1pn2/2pp4/3P4/2P1PN2/PP1N1PPP/R1BQKB1R b KQkq -"
"Sicilian: Richter-Rauzer, Rauzer attack","r1bqkb1r/pp3ppp/2nppn2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R b KQkq -"
"Two Knights defense: Canal variation","r1bqkb1r/ppp2ppp/2n5/3p4/2Bpn3/2N2N2/PPP2PPP/R1BQR1K1 b kq -"
"Four Knights: Belgrade gambit *","r1bqkb1r/ppp2ppp/5n2/3Pp3/3n4/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"French: Tarrasch, open variation, main line *","r1bqkb1r/pppn1ppp/5n2/3p4/2PP4/2N5/PP3PPP/R1BQKBNR b KQkq -"
"Dutch defense: Bladel variation *","r1bqkbnr/pp2pppp/2n5/2pp4/5P2/6PN/PPPPP2P/RNBQKB1R b KQkq -"
"Czech Benoni: King's Indian system *","r1bqkbnr/pp3ppp/2n5/2p1p3/2PpP3/3P1NP1/PP3P1P/RNBQKB1R b KQkq -"
"Caro-Kann: Panov-Botvinnik attack, 5...g6 *","r1bqkbnr/pp3ppp/2n5/2pp4/3P4/5NP1/PP2PP1P/RNBQKB1R b KQkq -"
"Caro-Kann: Tartakower (Nimzovich) variation *","r1bqkbnr/ppp2ppp/8/3p4/8/2P2P2/PP3PPP/RNBQKB1R b KQkq -"
"Caro-Kann: Steinitz variation *","r1bqkbnr/ppp2ppp/8/3pn3/8/2P5/PP1NPPPP/R1BQKBNR b KQkq -"
"Vienna gambit","r1bqkbnr/pppp1ppp/2n5/4p3/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq -"
"Ruy Lopez: closed, Flohr-Zaitsev system (Lenzerheide variation)","r2q1rk1/1bp1bppp/p1np1n2/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - -"
"QGD Slav: Smyslov variation","r2qkb1r/pp2pppp/n1p2n2/8/P1pPP1b1/2N2N2/1P3PPP/R1BQKB1R w KQkq -"
"Caro-Kann: Panov-Botvinnik, normal variation *","r2qkbnr/pp3ppp/2n5/2pp4/3P2b1/2N1PN2/PP3PPP/R1BQKB1R b KQkq -"
"Two Knights defense: Bogolyubov variation *","rnb1k2r/pppp1ppp/5q2/8/Nb2P1n1/2P2N2/P4PPP/R1BQKB1R w KQkq -"
"KGD: Falkbeer, Charousek variation","rnb1kb1r/ppp3pp/8/3q1p2/4nPP1/8/PPPNQ2P/R1B1KBNR b KQkq -"
"Dutch: Ilyin-Genevsky variation","rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"Nimzo-Indian: 4.e3, Keres variation","rnbq1rk1/p4ppp/1p2pn2/2pp4/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 w - -"
"King's Indian: Four pawns attack","rnbq1rk1/pp3pbp/3ppnp1/2pP4/2P1PP2/2N2N2/PP2B1PP/R1BQK2R b KQ -"
"King's Indian: 5.Nf3","rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq -"
"Ruy Lopez: Cozio defense *","rnbqk2r/pppp1ppp/5n2/4p3/1b2P3/2N5/PPPPNPPP/R1BQKB1R b KQkq -"
"Sicilian: Nimzovich-Rossolimo attack (with ...g6, without ...d6) *","rnbqk2r/pppp1ppp/5n2/4p3/1bP5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq -"
"Ruy Lopez: Morphy defense *","rnbqk2r/pppp1ppp/5n2/b3p3/4P3/P1N2N2/1PPP1PPP/R1BQKB1R b KQkq -"
"Ruy Lopez: Cozio defense deferred *","rnbqk2r/pppp1ppp/5n2/b3p3/4P3/P1N5/1PPPNPPP/R1BQKB1R b KQkq -"
"Sicilian: Najdorf, Adams attack","rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N4P/PPP2PP1/R1BQKB1R b KQkq -"
"Queen's Indian: 4.e3","rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/4PN2/PP3PPP/RNBQKB1R b KQkq -"
"Neo-Grunfeld defense *","rnbqkb1r/pp2pppp/5n2/2pp4/3P4/5NP1/PPP1PP1P/RNBQKB1R b KQkq -"
"QGA, Smyslov variation","rnbqkb1r/ppp1pp1p/5np1/8/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq -"
"French: Steinitz variation","rnbqkb1r/ppp2ppp/4pn2/3pP3/3P4/2N5/PPP2PPP/R1BQKBNR b KQkq -"
"Boden-Kieseritsky gambit: Lichtenhein defense","rnbqkb1r/ppp2ppp/8/3pp3/2B1n3/2N2N2/PPPP1PPP/R1BQK2R w KQkq -"
"Neo-Indian (Seirawan) attack","rnbqkb1r/pppp1ppp/4pn2/6B1/2PP4/8/PP2PPPP/RN1QKBNR b KQkq -"
"Sicilian: Katalimov variation *","rnbqkb1r/pppp1ppp/5n2/4p3/2P5/1P6/P2PPPPP/RNBQKBNR b KQkq -"
"Sicilian: Quinteros variation *","rnbqkb1r/pppp1ppp/5n2/4p3/2P5/8/PPQPPPPP/RNB1KBNR b KQkq -"
"Dutch, Spielmann gambit","rnbqkb1r/ppppp1pp/5n2/5p2/3P2P1/2N5/PPP1PP1P/R1BQKBNR b KQkq -"
"King's Indian defense, 3.Nc3","rnbqkb1r/pppppp1p/5np1/8/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq -"
"Caro-Kann: advance variation","rnbqkbnr/pp2pppp/2p5/3pP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq -"
"Sicilian: Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack","rnbqkbnr/pp2pppp/3p4/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq -"
"King's Indian: Danube gambit *","rnbqkbnr/pp2pppp/8/2p5/1P1p4/5NP1/P1PPPP1P/RNBQKB1R b KQkq -"
"French: advance variation","rnbqkbnr/pp3ppp/4p3/2ppP3/3P4/2P5/PP3PPP/RNBQKBNR b KQkq -"
"Old Benoni: Mujannah formation *","rnbqkbnr/ppp1pppp/8/8/2Pp1P2/8/PP1PP1PP/RNBQKBNR b KQkq -"
"French: Pelikan variation","rnbqkbnr/ppp2ppp/4p3/3p4/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq -"
"Bishop's opening","rnbqkbnr/pppp1ppp/8/4p3/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq -"
"Nimzovich-Larsen attack","rnbqkbnr/pppppppp/8/8/8/1P6/P1PPPPPP/RNBQKBNR b KQkq -"
"QGD Slav: Landau variation","rnq1kb1r/pp3ppp/4pn2/3p1b2/3P4/NQ2PN2/PP1B1PPP/R3KB1R b KQkq -"
"French: Albin-Alekhine-Chatard attack","rnbqk2r/pppnbppp/4p3/3pP1B1/3P3P/2N5/PPP2PP1/R2QKBNR b KQkq h3"
"KGD: classical, Heath variation","rnbqk1nr/ppp2ppp/3p4/2b1p3/1P2PP2/5N2/P1PP2PP/RNBQKB1R b KQkq b3"
"Sicilian: Smith-Morra gambit","rnbqkbnr/pp1ppppp/8/2p5/3PP3/8/PPP2PPP/RNBQKBNR b KQkq d3"
"Sicilian: Alapin's variation (Smith-Morra gambit)","rnbqkb1r/pp1ppppp/8/3nP3/3p4/2P5/PP3PPP/RNBQKBNR w KQkq -"
"Four knights: Ioseliani-Glek variation","r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/2N2NP1/PPPP1P1P/R1BQKB1R b KQkq -"
"Nimzo-Indian: Leningrad variation","rnbqk2r/pp1p1pp1/4pn1p/2pP4/1bP4B/2N5/PP2PPPP/R2QKBNR b KQkq -"
"Nimzo-Indian: classical (4...c5/5...Na6)","r1bqk2r/pp3ppp/4pn2/2Pp4/1P1Qn3/P7/4PPPP/R1B1KBNR b KQkq -"
"King's Indian: orthodox (7...Nbd7) main line","r1bq1rk1/1p1n1pbp/2pp1np1/p3p3/2PPP3/2N2N2/PP3PPP/R1BQRBK1 w - a6"
"King's Indian: Samisch, Panno main line","1rbq1rk1/1pp1ppbp/p1np1np1/8/2PPP3/2N1BP2/PP1QN1PP/R3KB1R w KQ -"
"Sicilian: Smith-Morra gambit, Chicago defense","2bqkbnr/r4ppp/p1npp3/1p6/4P3/1BN2N2/PP2QPPP/R1B2RK1 w k -"
"Ruy Lopez: Vinogradov variation","r1b1kbnr/ppppqppp/2n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"King's Indian: fianchetto, Larsen system *","r1bq1rk1/pp2ppbp/2n2np1/2pp4/5B2/2PP1NP1/PP2PPBP/RN1Q1RK1 b - -"
"Sicilian: Dragon, classical, 9.Nb3","r1bq1rk1/pp2ppbp/2np1np1/8/4P3/1NN1B3/PPP1BPPP/R2Q1RK1 b - -"
"Ruy Lopez: Classical defense deferred","r1bqk1nr/1ppp1ppp/p1n5/2b1p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Pirc: Chinese variation *","r1bqk1nr/ppp1bp1p/2n5/3pp1p1/8/3P1NP1/PPP1PPBP/RNBQK2R w KQkq -"
"Evans gambit: Steinitz variation","r1bqk1nr/ppp3pp/1b1p1p2/n7/2BPP3/2N1BN2/P4PPP/R2Q1RK1 b kq -"
"QGD semi-Slav: Meran, Reynolds' variation *","r1bqk2r/pp3ppp/2nb1n2/4p3/1PPp4/P3PN2/3N1PPP/R1BQKB1R w KQkq -"
"QGD Slav: Wiesbaden variation *","r1bqkb1r/1p2pppp/2n5/p1Pp4/4nB2/2P1PN2/PP3PPP/RN1QKB1R b KQkq -"
"Grunfeld: modern exchange variation *","r1bqkb1r/p4ppp/2p2n2/3pp3/8/6P1/PPP1PPBP/RNBQK2R w KQkq -"
"QGD: 5...c6","r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/2N1P3/PP3PPP/R2QKBNR w KQkq -"
"QGD Slav accepted *","r1bqkb1r/pp2pppp/2n2n2/2Pp4/8/2P2N2/PP2PPPP/RNBQKB1R b KQkq -"
"Sicilian: Scheveningen, fianchetto variation *","r1bqkb1r/ppp2p1p/2n3p1/3np3/8/3PPN2/PP3PPP/RNBQKB1R w KQkq -"
"Four Knights: Scotch variation *","r1bqkb1r/ppp2ppp/2n2n2/3pp3/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"Sicilian: Kan, 5.Nc3 *","r1bqkb1r/ppp2ppp/2n5/3np3/8/P3P3/1P1P1PPP/RNBQKBNR w KQkq -"
"Sicilian: accelerated fianchetto, exchange variation","r1bqkbnr/pp1ppp1p/2N3p1/8/4P3/8/PPP2PPP/RNBQKB1R b KQkq -"
"French: Steinitz variation *","r1bqkbnr/ppp3pp/2n5/5p2/2pPp3/2N1P3/PP1N1PPP/R1BQKB1R b KQkq -"
"French: Rubinstein variation","r1bqkbnr/pppn1ppp/4p3/8/3PN3/8/PPP2PPP/R1BQKBNR w KQkq -"
"Caro-Kann defense *","r1bqkbnr/pppp1ppp/2n5/4p3/8/2P5/PP1PPPPP/RNBQKBNR w KQkq -"
"Ruy Lopez: Nuremberg variation","r1bqkbnr/pppp2pp/2n2p2/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Vienna gambit *","r1bqkbnr/pppp2pp/2n5/4pp2/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"KP: Nimzovich defense, Wheeler gambit","r1bqkbnr/pppppppp/2n5/8/3PP3/2P5/P4PPP/RNBQKBNR b KQkq -"
"Ruy Lopez: closed, Chigorin, Yugoslav system *","r1bqr1k1/ppb2pp1/2p1nn1p/3pp3/NPP1P3/P2P1NP1/2QBBP1P/R3R1K1 b - -"
"Grunfeld: exchange, Seville variation *","r2q1rk1/p3n1pp/2p1bp2/3pp1B1/N1P5/6P1/PP2PbBP/R2Q1RK1 w - -"
"Sicilian: Dragon, Yugoslav attack, 10.O-O-O","r2q1rk1/pp1bppbp/2np1np1/8/2BNP3/2N1BP2/PPPQ2PP/2KR3R b - -"
"King's Indian: Semi-Averbakh system *","r2qk1nr/pp2bppp/2n1b3/2ppp3/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"Sicilian: Dragon, classical attack *","r2qk2r/ppp1bppp/2n1b3/3np3/8/3P1NP1/PP2PPBP/RNBQK2R w KQkq -"
"Dutch: Staunton gambit, Chigorin variation *","r2qkbnr/ppp2ppp/2n5/3pP3/6b1/2P2N2/PP1PP1PP/RNBQKB1R b KQkq -"
"Two Knights defense: Yurdansky attack *","r2qr1k1/p1p2ppp/5n2/1p1P3b/Q5P1/2N1Bn1P/PPP1KP2/R4B1R w - -"
"Sicilian: Dragon, classical, Amsterdam variation *","r3k2r/pppqbppp/2n1b3/3np3/8/2NP1NP1/PP2PPBP/R1BQK2R w KQkq -"
"QGA: classical, Flohr variation","r3kb1r/1bq2ppp/p3pn2/1p1P4/2p5/2N1PN2/PPQ2PPP/R1BR2K1 w kq -"
"Queen's Indian: Rubinstein variation","rn1qkb1r/pb1p1ppp/1p3n2/2pp4/2P4N/6P1/PP2PPBP/RNBQK2R b KQkq -"
"Queen's pawn: Anti-Veresov","rn1qkbnr/ppp1pppp/8/3p4/3P2b1/2N5/PPP1PPPP/R1BQKBNR w KQkq -"
"Sicilian: Najdorf, 7...Qb6","rnb1kb1r/1p3ppp/pq1ppn2/6B1/3NPP2/2N5/PPP3PP/R2QKB1R w KQkq -"
"Nimzo-Indian: Samisch variation","rnbq1rk1/pppp1ppp/4pn2/8/2PP4/P1P5/4PPPP/R1BQKBNR w KQ -"
"KGA: Muzio gambit, Brentano defense *","rnbq1rk1/pppp2pp/5n2/2b1pPP1/3P4/8/PPP2P1P/RNBQKBNR b KQ -"
"Bishop's opening: MacDonnell double gambit","rnbqk1nr/pppp1ppp/8/4p3/1bB1PP2/8/P1PP2PP/RNBQK1NR b KQkq -"
"Evans gambit declined, 5.a4 *","rnbqk2r/2pp1ppp/5n2/ppb1p3/4P3/1BN5/PPPP1PPP/R1BQK1NR w KQkq -"
"Ruy Lopez: modern Steinitz defense, Duras (Keres) variation *","rnbqk2r/pp1p1ppp/5n2/b1p1p3/4P3/P1NP4/1PP2PPP/R1BQKBNR w KQkq -"
"Neo-Grunfeld, 5.Nf3 *","rnbqk2r/pp2ppbp/5np1/2pp4/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq -"
"Ruy Lopez: Morphy defense, Duras variation *","rnbqk2r/pp3ppp/3p1n2/b1p1p3/4P3/P1NP1N2/1PP2PPP/R1BQKB1R w KQkq -"
"Two Knights defense *","rnbqk2r/ppppbppp/8/8/N3P1n1/2P2N1P/P4PP1/R1BQKB1R b KQkq -"
"Sicilian: Sozin with ...a6 and ...b5","rnbqkb1r/5ppp/p2ppn2/1p6/3NP3/1BN5/PPP2PPP/R1BQK2R w KQkq -"
"Queen's gambit accepted *","rnbqkb1r/pp2pppp/5n2/2Pp4/8/5N2/PPP1PPPP/RNBQKB1R b KQkq -"
"Queen's pawn game *","rnbqkb1r/pp2pppp/5n2/2pp4/8/4PN2/PPPP1PPP/RNBQKB1R w KQkq -"
"Queen's Indian: 4.e3 *","rnbqkb1r/pp3ppp/4pn2/2pp4/8/1P2PN2/P1PP1PPP/RNBQKB1R w KQkq -"
"QGA, 4.Nc3","rnbqkb1r/ppp1pppp/5n2/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq -"
"Latvian: Nimzovich variation *","rnbqkb1r/ppp2ppp/4n3/3pP3/8/3P1Q2/PPP3PP/RNB1KBNR w KQkq -"
"Scotch game *","rnbqkb1r/ppp2ppp/8/3np3/8/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"Tennison (Lemberg, Zukertort) gambit *","rnbqkb1r/pppp1ppp/5n2/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Dutch defense","rnbqkb1r/ppppp2p/5np1/5p2/3P4/6P1/PPP1PPBP/RNBQK1NR w KQkq -"
"Queen's pawn game","rnbqkb1r/pppppppp/5n2/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"English: Caro-Kann defensive system","rnbqkbnr/pp1ppppp/2p5/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"QGD Slav defense, Alekhine variation","rnbqkbnr/pp2pppp/2p5/8/2pPP3/2N5/PP3PPP/R1BQKBNR b KQkq -"
"Dutch, Krejcik gambit *","rnbqkbnr/ppp1pp1p/8/3p2p1/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -"
"Caro-Kann: advance variation *","rnbqkbnr/ppp2ppp/8/3p4/3Pp3/2P5/PP2PPPP/RNBQKBNR w KQkq -"
"QP counter-gambit (elephant gambit)","rnbqkbnr/ppp2ppp/8/3pp3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"KGD: Falkbeer, 5.de *","rnbqkbnr/ppp3pp/8/4pp2/3p4/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"KGA: Salvio gambit","rnbqkbnr/pppp1p1p/8/4N3/2B1Ppp1/8/PPPP2PP/RNBQK2R b KQkq -"
"Dutch","rnbqkbnr/ppppp1pp/8/5p2/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Clemenz (Mead's, Basman's or de Klerk's) opening *","rnbqkbnr/ppppppp1/7p/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Modern defence: Averbakh system","rnbqk1nr/ppp1ppbp/3p2p1/8/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq e3"
"Benoni: Taimanov variation","rnbqk2r/pp1n1pbp/3p2p1/1BpP4/P3PP2/2N5/1P4PP/R1BQK1NR b KQkq a3"
"Pirc-Robatsch (4.Be3 Nf6)","rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N1B3/PPP2PPP/R2QKBNR w KQkq -"
"Pirc-Robatsch","rnbqkb1r/pp2pppp/2pp1n2/8/P2PP3/2N5/1PP2PPP/R1BQKBNR b KQkq a3"
"Dresden opening","r1bqkbnr/pppp1ppp/2n5/4p3/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq c3"
"Ruy Lopez: Berlin defence, Duras variation","r1bqkb1r/ppp2ppp/2np1n2/1B2p3/2P1P3/3P1N2/PP3PPP/RNBQK2R b KQkq c3"
"Queen's pawn game, Krause variation","rnbqkbnr/pp2pppp/8/2pp4/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq c6"
"QGD: Tarrasch defence, Marshall gambit","rnbqkbnr/pp3ppp/8/2pp4/3PP3/2N5/PP3PPP/R1BQKBNR b KQkq e3"
"Catalan: closed (5.Nf3)","rnbq1rk1/ppp1bppp/4pn2/3p4/2PP4/5NP1/PP2PPBP/RNBQ1RK1 b - -"
"Nimzo-Indian: classical, Noa variation","rnbqk2r/ppp2ppp/4pn2/3P4/1b1P4/2N5/PPQ1PPPP/R1B1KBNR b KQkq -"
"King's Indian (3.Nf3)","rnbqk2r/ppppppbp/5np1/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq -"
"Grunfeld: Grunfeld gambit, Capablanca variation *","2rqkbnr/pp3ppp/2n1p3/2pp1b2/3P4/5NP1/PPP1PPBP/RNBQ1RK1 w k -"
"Nimzo-Indian: classical, Milner-Barry (Zurich) variation *","r1b1kb1r/ppq1pppp/2n2n2/1Bpp4/8/2NPPN2/PPP2PPP/R1BQK2R b KQkq -"
"Ruy Lopez: closed, Ragozin-Petrosian (`Keres') variation","r1bq1rk1/2pnbppp/p1np4/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - -"
"Benoni: classical, 9.O-O *","r1bq1rk1/pp2bppp/2n2n2/4p3/2Pp4/3P1NP1/PP3PBP/RNBQ1RK1 w - -"
"Sicilian: Sozin, Fischer variation","r1bq1rk1/pp2bppp/2nppn2/8/3NPP2/1BN1B3/PPP3PP/R2QK2R b KQ -"
"English: symmetrical, main line with d3 *","r1bq1rk1/pp2ppbp/2np1np1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQ1RK1 w - -"
"QGD: Semi-Tarrasch, symmetrical variation","r1bq1rk1/pp3ppp/2nbpn2/2pp4/2PP4/2NBPN2/PP3PPP/R1BQ1RK1 w - -"
"Four Knights: Gunsberg counter-attack","r1bq1rk1/pppp1ppp/2n5/1B1P4/1b2p3/5N2/PPPP1PPP/R1BQ1RK1 w - -"
"Four Knights: Marshall variation *","r1bq1rk1/pppp1ppp/2n5/3Np3/1bB1n3/5N2/PPPP1PPP/R1BQ1RK1 b - -"
"French: Tarrasch, closed variation *","r1bqk1nr/pp1n1ppp/2pb4/3p4/2PPp3/2N1P3/PP1N1PPP/R1BQKB1R b KQkq -"
"French: Winawer, Alekhine gambit, Kan variation","r1bqk1nr/ppp2ppp/2n1p3/8/3Pp3/P1N5/1PP2PPP/R1BQKB1R w KQkq -"
"Giuoco Pianissimo","r1bqk1nr/pppp1ppp/2n5/2b1p3/2B1P3/3P1N2/PPP2PPP/RNBQK2R b KQkq -"
"Grunfeld: exchange, Spassky variation *","r1bqk2r/p3nppp/2p5/2bpp3/2P5/6P1/PP2PPBP/RNBQ1RK1 b kq -"
"King's Indian: Kazakh variation *","r1bqk2r/pp2bppp/2n2n2/2ppp3/8/N2P1NP1/PPP1PPBP/R1BQ1RK1 b kq -"
"Giuoco Piano","r1bqk2r/pppp1ppp/2n2n2/2b1p3/2BPP3/2P2N2/PP3PPP/RNBQK2R b KQkq -"
"Catalan: open, 5.Qa4 Nbd7, 6.Qxc4","r1bqkb1r/pppn1ppp/4pn2/8/2QP4/6P1/PP2PPBP/RNB1K1NR b KQkq -"
"English: Four Knights, Capablanca variation","r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2NP1N2/PP2PPPP/R1BQKB1R b KQkq -"
"Ruy Lopez: modern Steinitz defense","r1bqkbnr/1pp2ppp/p1np4/4p3/B3P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq -"
"Sicilian: Gloria variation *","r1bqkbnr/pp1p1p1p/2n3p1/2p1p3/2P4P/2NP4/PP2PPP1/R1BQKBNR b KQkq -"
"Caro-Kann: Edinburgh variation *","r1bqkbnr/pppn1ppp/8/3pp3/3P4/1QP5/PP2PPPP/RNB1KBNR b KQkq -"
"Latvian: Fraser defense","r1bqkbnr/pppp2pp/2n5/4Np2/4P3/8/PPPP1PPP/RNBQKB1R w KQkq -"
"Evans gambit: Goring attack *","r2q1rk1/p4ppp/2n2n2/2bpp3/N5b1/1B1P4/PPP2PPP/R1BQK1NR w KQ -"
"QGD semi-Slav: Ekstrom variation *","r2qkb1r/pp3ppp/2n5/2Pp3P/1P2n3/2P1Pp1P/P4P2/RNBQKB1R w KQkq -"
"Sicilian: Richter-Rauzer, Bondarevsky variation *","r2qkb1r/ppp2ppp/2n5/3np3/6b1/2NP1NP1/PP2PP1P/R1BQKB1R b KQkq -"
"French: classical variation *","r2qkbnr/ppp2ppp/2n5/3p4/3Pp3/4P3/PPPNQPPP/RNB1K2R b KQkq -"
"French: MacCutcheon, Tartakower variation *","r2qkbnr/pppb1ppp/2n5/1B1p4/3Pp3/4P2P/PPPN1PP1/RNBQK2R b KQkq -"
"Sicilian: Canal-Sokolsky attack, Bronstein gambit","r3kb1r/pp1qpppp/2np1n2/2p5/3PP3/2P2N2/PP3PPP/RNBQ1RK1 b kq -"
"Benko gambit: main line","rn1q1rk1/4ppbp/3p1np1/2pP4/4P3/2N2NP1/PP3PKP/R1BQ3R b - -"
"Queen's Indian: old main line, 6.O-O","rn1qk2r/pbppbppp/1p2pn2/8/2PP4/5NP1/PP2PPBP/RNBQ1RK1 b kq -"
"Scotch gambit: Vitzhum attack *","rnb1k2r/ppp2ppp/8/2bPp3/2B3nq/2N4N/PPPP1PPP/R1BQK2R w KQkq -"
"Latvian: Behting variation","rnb1kb1N/ppp3pp/5n2/3p4/2B1p3/8/PPPP1PqP/RNBQKR2 w Qkq -"
"KGA: Salvio gambit, Anderssen counter-attack","rnb1kb1r/ppp2p1p/3p3n/4N3/2BPPppq/8/PPP3PP/RNBQ1K1R w kq -"
"KGA: Silberschmidt gambit","rnb1kb1r/pppp1p1p/7n/4N3/2BPP1pq/5p2/PPP3PP/RNBQ1K1R w kq -"
"Two Knights defense, Keidanz variation *","rnbq1k1r/ppp2Bpp/8/4N2Q/1b1Pp3/2n5/PPP2PPP/R1B1K2R b KQ -"
"KGA: Muzio gambit *","rnbq1rk1/pppp2pp/5n2/2b1pPP1/8/8/PPPP1P1P/RNBQKBNR w KQ -"
"QP counter-gambit: Maroczy gambit","rnbqk1nr/ppp2ppp/3b4/3Pp3/8/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"King's knight's gambit","rnbqk1nr/pppp1pbp/8/6p1/2B1Pp2/5N2/PPPP2PP/RNBQK2R w KQkq -"
"Bishop's opening: Four pawns' gambit","rnbqk1nr/pppp1ppp/8/8/2BPP2b/5N2/P1P4p/RNBQ1R1K b kq -"
"King's Indian: Samisch variation","rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N2P2/PP4PP/R1BQKBNR b KQkq -"
"Grunfeld: 5.Bf4","rnbqk2r/ppp1ppbp/5np1/3p4/2PP1B2/2N2N2/PP2PPPP/R2QKB1R b KQkq -"
"Grunfeld: modern exchange variation","rnbqk2r/ppp1ppbp/6p1/8/3PP3/2P2N2/P4PPP/R1BQKB1R b KQkq -"
"Ruy Lopez: Schliemann defense *","rnbqk2r/pppp1ppp/5n2/4p3/1b2PP2/2N5/PPPP2PP/R1BQKBNR b KQkq -"
"Sicilian: Najdorf, Byrne (English) attack","rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N1B3/PPP2PPP/R2QKB1R b KQkq -"
"QGD semi-Slav: 5.e3","rnbqkb1r/pp3ppp/2p1pn2/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R b KQkq -"
"Sicilian: Sozin attack","rnbqkb1r/pp3ppp/3ppn2/8/2BNP3/2N5/PPP2PPP/R1BQK2R b KQkq -"
"Colle system","rnbqkb1r/pp3ppp/4pn2/2pp4/3P4/2PBPN2/PP3PPP/RNBQK2R b KQkq -"
"Dory defense *","rnbqkb1r/ppp1pppp/5n2/3pN3/8/8/PPPPPPPP/RNBQKB1R b KQkq -"
"Petrov: classical attack","rnbqkb1r/ppp2ppp/3p4/8/3Pn3/5N2/PPP2PPP/RNBQKB1R b KQkq -"
"Vienna game","rnbqkb1r/pppp1ppp/8/4p3/2B1n3/2N5/PPPP1PPP/R1BQK1NR w KQkq -"
"Reti: King's Indian attack *","rnbqkb1r/pppppp1p/5np1/8/3P4/6P1/PPP1PP1P/RNBQKBNR b KQkq -"
"Queen's pawn game","rnbqkb1r/pppppppp/5n2/8/2PP4/8/PP2PPPP/RNBQKBNR b KQkq -"
"QGD: semi-Slav, Marshall gambit","rnbqkbnr/pp3ppp/2p1p3/3p4/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq -"
"Mujannah opening","rnbqkbnr/ppp1pppp/8/3p4/2P2P2/8/PP1PP1PP/RNBQKBNR b KQkq -"
"Queen's pawn, Mason variation","rnbqkbnr/ppp1pppp/8/3p4/3P1B2/8/PPP1PPPP/RN1QKBNR b KQkq -"
"KP: Napoleon's opening","rnbqkbnr/pppp1ppp/8/4p3/4P3/5Q2/PPPP1PPP/RNB1KBNR b KQkq -"
"King's pawn game *","rnbqkbnr/pppp1ppp/8/4p3/4P3/8/PPPP1PPP/RNBQKBNR b KQkq -"
"Center game","rnbqkbnr/pppp1ppp/8/8/3pP3/8/PPP2PPP/RNBQKBNR w KQkq -"
"Latvian gambit, 3.Bc4","rnbqkbnr/pppp2pp/8/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R b KQkq -"
"Dutch defense","rnbqkbnr/ppppp1pp/8/5p2/2PP4/8/PP2PPPP/RNBQKBNR b KQkq -"
"Ruy Lopez: closed, 9.h3 *","rnbqr1k1/pp1p1pp1/1bp2n1p/4p3/1P2P3/P1NP1N2/2P1BPPP/R1BQ1RK1 w - -"
"Ruy Lopez: Caro variation","r1bqkbnr/2pp1ppp/p1n5/1p2p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq b6"
"Sicilian: Najdorf, Polugayevsky variation","rnbqkb1r/5ppp/p2ppn2/1p4B1/3NPP2/2N5/PPP3PP/R2QKB1R w KQkq b6"
"Gruenfeld: Makogonov variation","rnbq1rk1/ppp1ppbp/5np1/3p4/1PPP4/2N1PN2/P4PPP/R1BQKB1R b KQ b3"
"Giuoco piano: Holzhausen attack","r1b1k2r/ppp1qppp/5n2/4p1B1/2BnP3/2N5/PPP3PP/R2Q1RK1 b kq -"
"QGD: Cambridge Springs defense, Yugoslav variation","r1b1kb1r/pp1n1ppp/2p1p3/q2n2B1/3P4/2N1PN2/PP3PPP/R2QKB1R w KQkq -"
"Vienna gambit: Heyde variation *","r1b1kbnr/ppp3pp/2n2q2/3pN3/3PpP2/8/PPP3PP/RNBQKB1R w KQkq -"
"Ruy Lopez: Marshall, main line, 14...Qh3","r1b2rk1/5ppp/p1pb4/1p1n4/3P4/1BP3Pq/PP3P1P/RNBQR1K1 w - -"
"King's Indian: fianchetto, classical main line","r1bq1rk1/pp1n1pbp/2pp1np1/4p3/2PPP3/2N2NPP/PP3PB1/R1BQ1RK1 b - -"
"Catalan: closed, Qc2 & b3","r1bq1rk1/pp1nbppp/2p1pn2/3p4/2PP4/1P3NP1/P1Q1PPBP/RNB2RK1 b - -"
"Giuoco Piano: Moller (Therkatz) attack *","r1bq1rk1/pp3ppp/2B2n2/2b1N3/3p4/2N5/PPPP1PPP/R1BQK2R w KQ -"
"Nimzo-Indian: 4.e3, Gligoric system, Bronstein variation *","r1bq1rk1/pp3ppp/2n1pn2/1Bbp4/2P5/4PN2/PP1N1PPP/R1BQ1RK1 b - -"
"Four Knights","r1bq1rk1/pppp1ppp/2n2n2/1B2p3/4P3/2bP1N2/PPP2PPP/R1BQ1RK1 w - -"
"Grunfeld: exchange, classical variation *","r1bqk1nr/p4ppp/2p5/2bpp3/8/6P1/PPP1PPBP/RNBQK2R w KQkq -"
"King's Indian: Four pawns attack, 6.Be2 *","r1bqk1nr/pp2b1pp/2n5/2pppp2/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"King's Indian: Pomar system *","r1bqk2r/pp2npbp/2n3p1/2ppp3/4P3/3P1NP1/PPP2PBP/RNBQ1RK1 w kq -"
"Sicilian: accelerated fianchetto, Simagin variation","r1bqk2r/pp2ppbp/2np2pn/8/2P1P3/8/PPN1BPPP/RNBQK2R w KQkq -"
"QGD: Manhattan variation","r1bqk2r/pppn1ppp/4pn2/3p2B1/1bPP4/2N1P3/PP3PPP/R2QKBNR w KQkq -"
"Inverted Hanham *","r1bqk2r/pppnbppp/3p1n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq -"
"English: Four Knights, 4.e3 *","r1bqkb1r/pp1p1ppp/2n1pn2/2p5/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"Nimzo-Indian: 4.e3 c5, 5.Ne2 (Rubinstein, anti-Hubner system) *","r1bqkb1r/pp2nppp/2n1p3/1Bpp4/2P5/4PN2/PP1P1PPP/RNBQK2R w KQkq -"
"Grunfeld: Three Knights variation *","r1bqkb1r/pp2pppp/2n2n2/2pp4/3P4/5NP1/PPP1PP1P/RNBQKB1R w KQkq -"
"Scandinavian: Anderssen counter-attack, Goteborg system *","r1bqkb1r/ppp2ppp/2n2n2/3p4/Q3P3/8/PPP2PPP/RNB1KBNR w KQkq -"
"English: symmetrical variation","r1bqkbnr/pp1ppppp/2n5/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -"
"Nimzo-Indian: 4.e3 *","r1bqkbnr/pp3ppp/2n1p3/1Bpp4/8/4PN2/PPPP1PPP/RNBQK2R w KQkq -"
"Benoni: 6.e4 *","r1bqkbnr/pp3ppp/2n5/4p3/2Pp4/3P1N2/PP3PPP/RNBQKB1R w KQkq -"
"Sicilian: closed *","r1bqkbnr/pppp1p1p/2n3p1/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -"
"Four Knights: symmetrical, Tarrasch variation *","r2q1rk1/ppp2ppp/2np1n2/1B2p3/1b2P1b1/2NPBN2/PPP2PPP/R2Q1RK1 b - -"
"Ruy Lopez: closed Berlin defense, Showalter variation","r2qk2r/pppbbppp/2Bp1n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQ1RK1 b kq -"
"Ruy Lopez: open, Berlin variation","r2qkb1r/2p2ppp/p1n1b3/1pnpP3/8/1BP2N2/PP3PPP/RNBQ1RK1 w kq -"
"QGD: Alekhine variation *","r2qkb1r/pp3ppp/2n2n2/2ppp3/3P2b1/2P1PN2/PP1N1PPP/R1BQKB1R w KQkq -"
"Richter-Veresov attack *","r2qkbnr/ppp1pppp/2n5/3p4/3P2b1/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"Pirc: 150 attack *","r3kbnr/pppq1ppp/2n1b3/3pp3/8/2PP1NP1/PP2PP1P/RNBQKB1R w KQkq -"
"French: classical, Rubinstein variation *","r3kbnr/pppq1ppp/2n5/3p4/3Pp3/4P3/PPPNQPPP/RNB1K2R w KQkq -"
"Queen's Indian: old main line, 7.Nc3","rn1q1rk1/pbppbppp/1p2pn2/8/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - -"
"Evans gambit declined, Vasquez variation *","rnb1k2r/p1pp1ppp/8/4p3/Np2n1Qq/1B6/PPPPKbPP/R1B3NR w kq -"
"KGA: Allgaier, Horny defense *","rnb1kb1r/pppp2p1/8/4pq1p/8/3B1N1P/PPPP1K2/RNBQ3R b kq -"
"Hammerschlag (Fried fox/Pork chop opening) *","rnbq1bnr/pppppkpp/5p2/8/4P3/8/PPPP1PPP/RNBQKBNR w KQ -"
"English: Neo-Catalan declined *","rnbq1rk1/pp1pppbp/5np1/2p5/3P4/4PN2/PPP1BPPP/RNBQK2R w KQ -"
"Grunfeld: exchange, Spassky variation","rnbq1rk1/pp2ppbp/6p1/2p5/2BPP3/2P5/P3NPPP/R1BQK2R w KQ -"
"King's Indian: Averbakh, main line","rnbq1rk1/pp3pbp/3ppnp1/2pP2B1/2P1P3/2N5/PP2BPPP/R2QK1NR w KQ -"
"QGA: classical, Geller variation *","rnbq1rk1/pp3ppp/5n2/2bpp3/2P5/P3PN2/1P3PPP/RNBQKB1R w KQ -"
"Ruy Lopez: Berlin defense, 4.O-O *","rnbq1rk1/pppp1ppp/5n2/4p3/1b2P3/2N2N2/PPPP1PPP/R1BQKB1R w KQ -"
"Ruy Lopez: exchange variation, 5.O-O *","rnbq1rk1/pppp1ppp/5n2/4p3/4P3/P1P5/1PP2PPP/R1BQKBNR w KQ -"
"Dutch defense *","rnbqk1nr/pp2ppbp/6p1/2pp4/5P2/4PN2/PPPP2PP/RNBQKB1R w KQkq -"
"QGD: Vienna variation","rnbqk2r/ppp2ppp/4pn2/3p2B1/1bPP4/5N2/PP2PPPP/RN1QKB1R w KQkq -"
"QGD: Ragozin variation","rnbqk2r/ppp2ppp/4pn2/3p4/1bPP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq -"
"French: MacCutcheon, Tartakower variation","rnbqk2r/pppn1pp1/4p2p/3pP3/1b1P4/2N5/PPPB1PPP/R2QKBNR w KQkq -"
"Two Knights defense: Ulvestad variation *","rnbqk2r/pppp1ppp/8/2b5/1P1pP1n1/2N2N2/P1P2PPP/R1BQKB1R b KQkq -"
"King's knight's gambit *","rnbqk2r/pppp2pp/5n2/2b1pP2/6P1/8/PPPP1PBP/RNBQK1NR b KQkq -"
"Sicilian: Najdorf","rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq -"
"Sicilian: Kan, Gipslis variation","rnbqkb1r/1p3p1p/p2ppnp1/8/2PNP3/3B4/PP3PPP/RNBQ1RK1 w kq -"
"Santasiere's folly *","rnbqkb1r/p1pppppp/5n2/1p6/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Alekhine's defense: four pawns attack, fianchetto variation","rnbqkb1r/ppp1pp1p/1n1p2p1/4P3/2PP1P2/8/PP4PP/RNBQKBNR w KQkq -"
"Sicilian *","rnbqkb1r/ppp2ppp/8/3np3/8/3P4/PP2PPPP/RNBQKBNR w KQkq -"
"QP counter-gambit: Maroczy gambit *","rnbqkb1r/pppp1ppp/5n2/8/3pP3/3B4/PPP2PPP/RNBQK1NR b KQkq -"
"Sicilian: Keres variation (2.Ne2) *","rnbqkb1r/ppppnppp/8/4p3/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"Norwegian defense","rnbqkb1r/ppppppnp/6p1/4P3/3P2P1/8/PPP2P1P/RNBQKBNR w KQkq -"
"Bishop's opening: Philidor counter-attack","rnbqkbnr/pp1p1ppp/2p5/4p3/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq -"
"Queen's gambit declined *","rnbqkbnr/pp2pppp/8/2pp4/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"KGD: Falkbeer counter-gambit","rnbqkbnr/ppp2ppp/8/3pp3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq -"
"King's pawn opening *","rnbqkbnr/pppp1ppp/8/4p3/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Bird's opening: Williams gambit *","rnbqkbnr/pppp2pp/8/4pp2/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Old Benoni: Franco-Benoni defence","rnbqkbnr/pp1p1ppp/4p3/2pP4/4P3/8/PPP2PPP/RNBQKBNR b KQkq e3"
"Dutch: stonewall (with Ba3)","rnb2rk1/pp2q1pp/2p1pn2/3p1p2/2PP4/NP3NP1/P3PPBP/R1Q2RK1 b - -"
"KGA: Allgaier, Thorold variation","rnbq1bnr/pppp1k2/7p/8/3PPppP/8/PPP3P1/RNBQKB1R b KQ d3"
"Sicilian: Scheveningen, classical, Maroczy system","r1b1k2r/1pq1bppp/p1nppn2/8/P2NPP2/2N5/1PP1B1PP/R1BQ1R1K b kq a3"
"Ruy Lopez: closed (9.d4)","r1bq1rk1/2p1bppp/p1np1n2/1p2p3/3PP3/1BP2N2/PP3PPP/RNBQR1K1 b - d3"
"Blackmar-Diemer gambit","rnbqkb1r/ppp1pppp/5n2/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq e3"
"Torre attack (Tartakower variation)","r1bqr1k1/pppnppb1/5npp/3p2B1/1P1P4/2P1PN2/P2NBPPP/R2QK2R w KQ -"
"QGD Slav defence","rnbqkb1r/1p2pppp/p1p2n2/3p4/2PP4/2N1P3/PP3PPP/R1BQKBNR w KQkq -"
"QGD: Alekhine variation","r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PPP3/2N2N2/PP3PPP/R2QKB1R b KQkq e3"
"Sicilian: Dragon, Yugoslav attack, Rauser variation *","2kr1b1r/pppq2pp/2n1bp2/3np3/8/2NP1NP1/PP2PPBP/R1BQ1RK1 w - -"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 defense, 11.Bxf6 *","2kr1b1r/pppq2pp/2n2n2/4pp2/1P6/P1NPPb2/3BBPPP/R2QK2R w KQ -"
"Nimzo-Indian: classical, 4...Nc6 *","r1b1kbnr/ppq1pppp/2n5/1Bpp4/8/2N1PN2/PPPP1PPP/R1BQK2R b KQkq -"
"QGD: Cambridge Springs defense, Argentine variation","r1b2rk1/pp1n1ppp/2p1pn2/q2p4/1bPP3B/2N1P3/PPQN1PPP/R3KB1R b KQ -"
"Four Knights: symmetrical, Metger unpin","r1b2rk1/ppp1qppp/2np1n2/1B2p1B1/4P3/2PP1N2/P1P2PPP/R2Q1RK1 w - -"
"QGD: Orthodox defense, Rubinstein attack, Karlsbad variation","r1bq1rk1/1p1nbppp/p1p1pn2/3p2B1/2PP4/2N1PN2/PPQ2PPP/2R1KB1R w K -"
"Sicilian: Dragon, classical, Alekhine variation","r1bq1rk1/1p2ppbp/2np1np1/p7/4P3/1NN1B3/PPP1BPPP/R2Q1RK1 w - -"
"Nimzo-Indian: Samisch, main line *","r1bqk1nr/5ppp/p1pbp3/2pp4/2P5/2N1PN2/PP1P1PPP/R1BQ1RK1 b kq -"
"Scotch: Goring gambit, Bardeleben variation","r1bqk2r/pppp1ppp/2n2n2/8/1bB1P3/2N2N2/PP3PPP/R1BQK2R w KQkq -"
"Giuoco Piano: Moller (Therkatz) attack","r1bqk2r/pppp1ppp/2n5/3P4/2B1n3/2b2N2/PP3PPP/R1BQ1RK1 b kq -"
"Nimzo-Indian: Three Knights, Euwe variation *","r1bqkb1r/pp2pppp/2n2n2/1Bp1N3/2Pp4/4P3/PP1P1PPP/RNBQK2R b KQkq -"
"Ruy Lopez: Berlin defense, 4.O-O","r1bqkb1r/pppp1ppp/2n2n2/1B2p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 b kq -"
"Philidor: Hanham, Kmoch variation","r1bqkbnr/pp1n1ppp/2pp4/4p1N1/2BPP3/8/PPP2PPP/RNBQK2R b KQkq -"
"Philidor: Hanham, Delmar variation","r1bqkbnr/pp1n1ppp/2pp4/4p3/2BPP3/2P2N2/PP3PPP/RNBQK2R b KQkq -"
"QGD: Alapin variation *","r1bqkbnr/pp2pppp/2n5/2pp4/3P4/1P2P3/P1P2PPP/RNBQKBNR b KQkq -"
"Modern defense *","r1bqkbnr/pp2pppp/2n5/2pp4/8/3P2P1/PPP1PPBP/RNBQK1NR b KQkq -"
"Benko gambit: 7.e4 *","r1bqkbnr/pp3ppp/2n5/4p3/2Pp4/B2P1N2/4PPPP/RN1QKB1R w KQkq -"
"King's Indian: Samisch, 5...O-O *","r1bqkbnr/pp4pp/2n2p2/2ppp3/8/3P1NP1/PPP1PPBP/RNBQ1RK1 b kq -"
"Old Benoni: Schmid's system *","r1bqkbnr/ppp1pppp/2n5/8/2Pp4/3P2P1/PP2PP1P/RNBQKBNR b KQkq -"
"Caro-Kann: Bronstein-Larsen variation *","r1bqkbnr/ppp2ppp/8/3p4/8/2P2P2/PP2PP1P/RNBQKB1R b KQkq -"
"Caro-Kann: Rasa-Studier gambit *","r1bqkbnr/ppp3pp/2n2p2/3pP3/8/2P5/PP2PPPP/RNBQKBNR w KQkq -"
"Vienna: Steinitz gambit *","r1bqkbnr/ppp3pp/2n5/3ppP2/8/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"French: Tarrasch, open, 4.ed ed *","r1bqkbnr/pppn1ppp/8/3p4/2PP4/8/PP3PPP/RNBQKBNR b KQkq -"
"Sicilian: modern Scheveningen, main line *","r2q1rk1/ppp1b1pp/2n1b3/3npp2/8/2NPPN2/PP2BPPP/R1BQ1RK1 w - -"
"QGD: Tartakower (Makagonov-Bondarevsky) system *","r2qkb1r/pp3ppp/2n1pn2/2pp3b/3P4/1P2PN1P/P1P1BPP1/RNBQ1RK1 b kq -"
"King's Indian: Samisch, Panno main line *","r3kb1r/pp1qn1pp/2n1bp2/2ppp3/8/P1NP1NP1/1PP1PPBP/1RBQ1RK1 b kq -"
"Benoni: classical with ...a6 and 10...Bg4","rn1q1rk1/1p3pbp/p2p1np1/2pP4/P3P1b1/2N2N2/1P2BPPP/R1BQ1RK1 w - -"
"Grob: Romford counter-gambit","rn1qkbnr/ppp1pppp/8/8/2Pp2b1/8/PP1PPPBP/RNBQK1NR w KQkq -"
"French: Winawer, advance, poisoned pawn, Konstantinopolsky variation","rnb1k1r1/ppq1np1Q/4p3/3pP3/3p4/P1P5/2P1NPPP/R1B1KB1R b KQq -"
"Ponziani: Leonhardt variation *","rnb1kb1r/pp1p1ppp/2p2n2/q3p3/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq -"
"King's Indian: Four pawns attack, with Be2 and Nf3","rnbq1rk1/pp2ppbp/3p1np1/2p5/2PPPP2/2N2N2/PP2B1PP/R1BQK2R b KQ -"
"Dutch: stonewall variation","rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - -"
"Ruy Lopez: open, Zukertort variation *","rnbq1rk1/ppp2ppp/1b3n2/4N3/1P1Pp3/P7/2P1NPPP/R1BQKB1R b KQ -"
"Two Knights defense *","rnbq1rk1/ppp2ppp/5n2/2bPN3/8/2N5/PPPP1PPP/R1BQKB1R b KQ -"
"Two Knights defense *","rnbq1rk1/ppp2ppp/5n2/2bPp3/8/2N2N2/PPPP1PPP/R1BQKB1R w KQ -"
"KGA: Greco gambit","rnbqk1nb/pp3p2/2pp4/4N1p1/2BPPp2/2N5/PPP3P1/R1BQK3 b Qkq -"
"Alekhine's defense: modern, Flohr variation *","rnbqk2r/ppp1bppp/5n2/3p2B1/3Np3/2PP4/PP2PPPP/RN1QKB1R b KQkq -"
"Pirc: Austrian attack, Ljubojevic variation","rnbqk2r/ppp1ppbp/3p1np1/8/2BPPP2/2N5/PPP3PP/R1BQK1NR b KQkq -"
"Grunfeld: 5.Bg5","rnbqk2r/ppp1ppbp/5np1/3p2B1/2PP4/2N2N2/PP2PPPP/R2QKB1R b KQkq -"
"Reti: King's Indian attack, Keres variation *","rnbqk2r/ppppppbp/5np1/6B1/3P4/8/PPPNPPPP/R2QKBNR b KQkq -"
"King's Indian: 4.e4","rnbqk2r/ppppppbp/5np1/8/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq -"
"Ponziani counter-gambit *","rnbqkb1r/pp1p1ppp/2p2n2/4p3/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq -"
"English: symmetrical variation","rnbqkb1r/pp1ppppp/5n2/2p5/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq -"
"QGD: Albin counter-gambit, 5.g3 *","rnbqkb1r/pp2pp1p/5np1/2pP4/4p3/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"QGA, 4.e3 *","rnbqkb1r/pp3ppp/4pn2/2Pp4/8/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"Queen's bishop game","rnbqkb1r/ppp1pppp/5n2/3p4/3P1B2/5N2/PPP1PPPP/RN1QKB1R b KQkq -"
"QGA: 4...e6","rnbqkb1r/ppp2ppp/4pn2/8/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq -"
"Scotch game *","rnbqkb1r/ppp2ppp/8/3np3/2B5/2N5/PPPP1PPP/R1BQK1NR b KQkq -"
"Dutch defense","rnbqkb1r/pppp2pp/4pn2/5p2/2PP4/6P1/PP2PPBP/RNBQK1NR b KQkq -"
"Dutch with c4 & g3","rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/6P1/PP2PP1P/RNBQKBNR b KQkq -"
"Polish: Outflank variation *","rnbqkbnr/p1pppppp/8/1p6/8/2P5/PP1PPPPP/RNBQKBNR b KQkq -"
"Caro-Kann: Tartakower (fantasy) variation","rnbqkbnr/pp2pppp/2p5/3p4/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq -"
"QGA: Schwartz defense","rnbqkbnr/ppp1p1pp/8/5p2/2pPP3/8/PP3PPP/RNBQKBNR w KQkq -"
"Queen's pawn *","rnbqkbnr/ppp1pppp/8/3p4/8/4P3/PPPP1PPP/RNBQKBNR b KQkq -"
"Philidor: exchange variation","rnbqkbnr/ppp2ppp/3p4/8/3NP3/8/PPP2PPP/RNBQKB1R b KQkq -"
"Scandinavian: Marshall variation *","rnbqkbnr/ppp2ppp/8/3p4/3N4/8/PPP1PPPP/RNBQKB1R b KQkq -"
"French defense","rnbqkbnr/pppp1ppp/4p3/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq -"
"Owen defense *","rnbqkbnr/pppp1ppp/8/4p3/8/1P6/P1PPPPPP/RNBQKBNR b KQkq -"
"Caro-Kann defence","rnbqkbnr/pp1ppppp/2p5/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq d3"
"Sicilian: dragon, Levenfish variation","rnbqkb1r/pp2pp1p/3p1np1/8/3NPP2/2N5/PPP3PP/R1BQKB1R b KQkq f3"
"Sicilian: Sozin (with ...a6 & ...b5)","rnbqkb1r/5ppp/p2ppn2/1p6/3NP3/1BN5/PPP2PPP/R1BQK2R w KQkq b6"
"Queen's Indian: Capablanca variation","rn1qk2r/pbpp1ppp/1p2pn2/8/1bPP4/5NP1/PP1NPPBP/R1BQK2R b KQkq -"
"Nimzo-Indian: 4.e3 O-O, 5.Bd3 d5","rnbq1rk1/ppp2ppp/4pn2/3p4/1bPP4/2NBP3/PP3PPP/R1BQK1NR w KQ d6"
"King's Indian defence (3.Nc3)","rnbqk2r/ppppppbp/5np1/8/2PP4/2N3P1/PP2PP1P/R1BQKBNR b KQkq -"
"QGD: Cambridge Springs defense","r1b1kb1r/pp1n1ppp/2p1pn2/q2p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R w KQkq -"
"Evans gambit declined, Hicken variation","r1bk2nr/pppp1Qpp/1b6/nP2q3/2B1P3/8/PBPP1PPP/RN2K2R b KQ -"
"Benoni: classical with ...a6 and 10...Bg4 *","r1bq1rk1/1p2bppp/2n2n2/p3p1B1/2Pp4/P2P1NP1/1P3PBP/RN1Q1RK1 b - -"
"Alekhine's defense: four pawns attack, Korchnoi variation *","r1bq1rk1/pp2b1pp/2n2n2/2pp4/4pB2/1N2PP2/PPP1B1PP/RN1Q1RK1 b - -"
"King's Indian: fianchetto, Yugoslav Panno","r1bq1rk1/pp2ppbp/2np1np1/2pP4/2P5/2N2NP1/PP2PPBP/R1BQ1RK1 b - -"
"Nimzo-Indian: 4.e3, Gligoric system, Smyslov variation *","r1bq1rk1/pp3ppp/2n1pn2/1Bbp4/2P5/4PN2/PP2QPPP/RNB2RK1 b - -"
"King's Indian: Samisch, 6...Nc6","r1bq1rk1/ppp1ppbp/2np1np1/8/2PPP3/2N1BP2/PP4PP/R2QKBNR w KQ -"
"Giuoco Piano","r1bqk1nr/pppp1ppp/2n5/2b1p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"King's Indian: 6.Be2 *","r1bqk2r/pp2bppp/2n2n2/2ppp3/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"Giuoco Piano: Greco variation","r1bqk2r/pppp1ppp/2n5/8/1bBP4/2n2N2/PP3PPP/R1BQ1RK1 w kq -"
"French: Winawer, Alekhine gambit, Kan variation *","r1bqkb1r/1pp2ppp/p1n5/3pP3/8/2N1P3/PPP2PPP/R1BQK1NR b KQkq -"
"Sicilian: Richter-Rauzer, Bondarevsky variation","r1bqkb1r/pp2pp1p/2np1np1/6B1/3NP3/2N5/PPP2PPP/R2QKB1R w KQkq -"
"Sicilian: accelerated fianchetto, Gurgenidze variation","r1bqkb1r/pp2pp1p/3p1np1/8/2PQP3/2N5/PP3PPP/R1B1KB1R w KQkq -"
"Sicilian: Richter-Rauzer, 6...e6","r1bqkb1r/pp3ppp/2nppn2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R w KQkq -"
"Sicilian: accelerated fianchetto, modern variation *","r1bqkb1r/ppp2ppp/2n5/3np3/8/2N3P1/PP1PPP1P/R1BQKBNR w KQkq -"
"French: Steinitz variation *","r1bqkb1r/ppp3pp/2n2n2/3p1p2/2PPp3/4P3/PP1N1PPP/RNBQKB1R w KQkq -"
"Four Knights: Belgrade gambit","r1bqkb1r/pppp1ppp/2n2n2/3N4/3pP3/5N2/PPP2PPP/R1BQKB1R b KQkq -"
"Ponziani: Jaenisch counter-attack","r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq -"
"English opening *","r1bqkbnr/pp1ppppp/2n5/2p5/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Philidor: Berger variation","r2q1rk1/pp2bppp/2npbn2/2p3B1/4P3/2N2N2/PPP1BPPP/R2QR1K1 b - -"
"Ruy Lopez: Trajkovic counter-attack","r2qk2r/1bppbppp/p1n2n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQR1K1 w kq -"
"Sicilian: Sozin, Fischer variation *","r2qk2r/ppp3pp/1bn1b3/3npp2/8/2NPPN2/PP2BPPP/R1BQ1RK1 w kq -"
"QGD: Cambridge Springs defense, Rubinstein variation *","r2qkb1r/pp1n1ppp/2n1p3/2Pp4/Q5b1/2P1PN2/PP1N1PPP/R1B1KB1R b KQkq -"
"QGD: Tarrasch, Wagner variation","r2qkb1r/pp3ppp/2n2n2/2pp4/3P2b1/2N2NP1/PP2PPBP/R1BQK2R w KQkq -"
"French: classical, Steinitz variation *","r2qkbnr/ppp3pp/2n5/3p1p2/3Pp3/4P3/PPPNQPPP/RNB1K2R w KQkq -"
"Reti: King's Indian attack, Keres variation","r2qkbnr/pppnpppp/8/3p4/6b1/5NP1/PPPPPPBP/RNBQK2R w KQkq -"
"Four Knights: symmetrical, Capablanca variation *","r2qr1k1/p1p2ppp/2p2n2/3pp1B1/1b2P1b1/3P1N2/PPP1QPPP/R2N1RK1 b - -"
"QGD Slav: Landau variation *","r3kb1r/pp1b1ppp/nq2pn2/3p4/3P1B2/4PN2/PP3PPP/RNQ1KB1R w KQkq -"
"Queen's Indian: Euwe variation","rn1q1rk1/pbppbppp/1p2pn2/8/2PP4/1P3NP1/P3PPBP/RNBQ1RK1 b - -"
"Reti: Wade defense","rn1qkbnr/ppp1pppp/3p4/8/4P1b1/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"KGA: bishop's gambit, McDonnell attack","rnb1k2r/ppppnpbp/8/6p1/2BPPp1q/2N3P1/PPP4P/R1BQ1KNR b kq -"
"KGA: bishop's gambit, classical defense, Cozio attack","rnb1kbnr/pppp1p1p/8/6p1/2B1Pp1q/5Q2/PPPP2PP/RNB2KNR b kq -"
"KGA: bishop's gambit, classical defense *","rnbq1knr/pppp2pp/8/2b1pP1Q/6P1/8/PPPP1P1P/RNB1KBNR b KQ -"
"Nimzo-Indian: 4.e3 O-O","rnbq1rk1/pppp1ppp/4pn2/8/1bPP4/2N1P3/PP3PPP/R1BQKBNR w KQ -"
"Modern defense","rnbqk1nr/ppp1ppbp/3p2p1/8/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"Nimzo-Indian: Three Knights, Euwe variation","rnbqk2r/pp1p1ppp/4p3/2pP4/1bP1n3/2N2N2/PP2PPPP/R1BQKB1R w KQkq -"
"Pirc: Austrian attack, Dragon formation","rnbqk2r/pp2ppbp/3p1np1/2p5/3PPP2/2N2N2/PPP3PP/R1BQKB1R w KQkq -"
"French: classical","rnbqk2r/ppp1bppp/4pn2/3p2B1/3PP3/2N5/PPP2PPP/R2QKBNR w KQkq -"
"French: MacCutcheon, Lasker variation, 8...g6","rnbqk2r/ppp2p2/4p1pp/3pP3/3Pn1Q1/2P5/P1PB1PPP/R3KBNR w KQkq -"
"Petrov: classical attack, Marshall variation","rnbqk2r/ppp2ppp/3b4/3p4/3Pn3/3B1N2/PPP2PPP/RNBQK2R w KQkq -"
"Benoni defense","rnbqkb1r/pp1p1ppp/4pn2/2pP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq -"
"Sicilian: Anderssen variation","rnbqkb1r/pp1p1ppp/4pn2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq -"
"QGA: Mannheim variation","rnbqkb1r/ppp1pppp/5n2/8/Q1pP4/5N2/PP2PPPP/RNB1KB1R b KQkq -"
"Budapest defense declined","rnbqkb1r/pppp1ppp/5n2/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"Petrov: modern attack, Steinitz variation","rnbqkb1r/pppp1ppp/8/4P3/3pn3/5N2/PPP1QPPP/RNB1KB1R b KQkq -"
"Petrov: Cochrane gambit *","rnbqkb1r/pppp1ppp/8/4p3/8/3P1N2/PPP2nPP/RNBQKB1R w KQkq -"
"Alekhine's defense","rnbqkb1r/pppppppp/8/3nP3/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Polish (Sokolsky) opening *","rnbqkbnr/p1pppppp/8/1p6/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Old Benoni: Mujannah formation","rnbqkbnr/pp1pp1pp/8/2pP1p2/8/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Catalan opening *","rnbqkbnr/pp2pp1p/6p1/2pp4/8/4PN2/PPPP1PPP/RNBQKB1R w KQkq -"
"Sicilian","rnbqkbnr/pp2pppp/3p4/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Semi-Benoni (`blockade variation')","rnbqkbnr/pp3ppp/3p4/2pPp3/4P3/8/PPP2PPP/RNBQKBNR w KQkq -"
"QGD: Tarrasch defense, 4.cd ed","rnbqkbnr/pp3ppp/8/2pp4/3P4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"Queen's Pawn","rnbqkbnr/ppp1pppp/3p4/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Sicilian: Steinitz variation *","rnbqkbnr/pppp1p1p/6p1/4p3/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"King's pawn game","rnbqkbnr/pppp1ppp/8/4p3/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Ruy Lopez: closed, Keres (...Nd7) defense *","rnbqr1k1/ppb2pp1/2p2n1p/3pp3/NPP1P3/P2P4/3NBPPP/R1BQ1RK1 b - -"
"English: Caro-Kann defensive system","rnbqkb1r/pp2pp1p/2p2np1/3p4/2P5/1P3NP1/P2PPP1P/RNBQKB1R w KQkq -"
"English: closed system, modern line","rnbq1rk1/ppppppbp/5np1/8/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQ -"
"KGA: bishop's gambit, Bledow variation","rnbqkbnr/ppp2ppp/8/3p4/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq d6"
"Sicilian: closed (6.f4 e5) Botvinnik","r1bqk1nr/pp3pbp/2np2p1/2p1p3/4PP2/2NP2P1/PPP3BP/R1BQK1NR w KQkq e6"
"Sicilian: Canal-Sokolsky attack, Sokolsky variation","rn2kbnr/pp1qpppp/3p4/2p5/2P1P3/5N2/PP1P1PPP/RNBQK2R b KQkq c3"
"Two knights defence: Ulvestad variation","r1bqkb1r/p1p2ppp/2n2n2/1p1Pp1N1/2B5/8/PPPP1PPP/RNBQK2R w KQkq b6"
"Gruenfeld: Spike gambit","rnbqkb1r/ppp1pp1p/5np1/3p4/2PP2P1/2N5/PP2PP1P/R1BQKBNR b KQkq g3"
"QGD: Orthodox defense, Bd3 line, Janowski variation *","2rqk2r/pp3pp1/2n1pn2/2bp3p/3N2b1/2P1P3/PP1NBPPP/R1BQ1RK1 w k -"
"QGD: Anti-neo-orthodox variation *","2rqkbnr/pp3ppp/2n1p3/2pp4/3P2b1/4PN2/PPP1BPPP/RNBQ1RK1 w k -"
"Grunfeld: Russian, Prins variation *","r1b1kb1r/pp3ppp/2n2n2/2qpp3/8/N4NP1/PPP1PPBP/R1BQ1RK1 b kq -"
"Sicilian: accelerated fianchetto, Gurgenidze variation *","r1b1kb1r/pp3ppp/2n5/2pqp3/8/3P1NP1/PP2PP1P/R1BQKB1R b KQkq -"
"KGA: Herzfeld gambit","r1b1kbnr/pppp1p1p/2n5/4N3/2B1Pppq/8/PPPP2PP/RNBQ1K1R w kq -"
"Vienna: Zhuravlev countergambit *","r1b1kbnr/pppp1ppp/2n5/1B2p1q1/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq -"
"Ruy Lopez: closed, Chigorin, Rauzer attack","r1b2rk1/2q1bppp/p1np1n2/1pP1p3/4P3/2P2N1P/PPBN1PP1/R1BQR1K1 b - -"
"King's Indian: orthodox, 7...Nbd7, main line","r1bq1rk1/1p1n1pbp/2pp1np1/p3p3/2PPP3/2N2N2/PP3PPP/R1BQRBK1 w - -"
"Ruy Lopez: closed, Smyslov defense","r1bq1rk1/2p1bpp1/p1np1n1p/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - -"
"Ruy Lopez: Berlin defense, Rio de Janeiro variation","r1bq1rk1/p1ppbppp/8/2p1P3/3B4/2N5/PPP1QPPP/R3R1K1 w - -"
"Nimzo-Indian: 4.e3, Gligoric system, Bronstein variation","r1bq1rk1/pp1n1ppp/4pn2/2p5/1bBP4/2N1PN2/PP3PPP/R1BQ1RK1 w - -"
"QGD: Orthodox defense, Botvinnik variation","r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2NBPN2/PP3PPP/R2QK2R b KQ -"
"Four Knights: Nimzovich (Paulsen) variation","r1bq1rk1/pppp1ppp/2B2n2/4p3/1b2P3/2N2N2/PPPP1PPP/R1BQ1RK1 b - -"
"Sicilian: Grand Prix attack, Schofman variation","r1bqk1nr/pp1p1pbp/2n1p1p1/2p2P2/2B1P3/2N2N2/PPPP2PP/R1BQK2R b KQkq -"
"Sicilian: closed, Smyslov variation","r1bqk1nr/pp1p1pbp/4p1p1/2p5/3nP3/3PB1P1/PPP1NPBP/R2QK1NR b KQkq -"
"Sicilian: accelerated fianchetto, Maroczy bind, 6.Be3","r1bqk1nr/pp1pppbp/2n3p1/8/2PNP3/4B3/PP3PPP/RN1QKB1R b KQkq -"
"Sicilian: closed *","r1bqk1nr/ppp2pbp/2np2p1/4p3/2P5/2NP2P1/PP2PPBP/R1BQK1NR b KQkq -"
"Evans gambit","r1bqk1nr/pppp1ppp/2n5/4p3/1bB1P3/5N2/P1PP1PPP/RNBQK2R w KQkq -"
"Evans gambit: compromised defense","r1bqk1nr/pppp1ppp/2n5/b7/2B1P3/2p2N2/P4PPP/RNBQ1RK1 w kq -"
"Grunfeld: exchange, Simagin's improved variation *","r1bqk2r/p3nppp/2p5/2bpp3/8/2N3P1/PPP1PPBP/R1BQ1RK1 b kq -"
"Ruy Lopez: Berlin defense, Zukertort variation","r1bqk2r/pnppbppp/2p5/4P3/2P5/5N2/PP2QPPP/RNB2RK1 b kq -"
"English: closed, Taimanov variation *","r1bqk2r/pp1pnpbp/2n1p1p1/2p5/4P3/2NP2PN/PPP2PBP/R1BQK2R b KQkq -"
"Sicilian: Boleslavsky variation *","r1bqk2r/ppp1bppp/2n5/3np3/4P3/2NP1N2/PP3PPP/R1BQKB1R b KQkq -"
"Sicilian: Boleslavsky, Louma variation *","r1bqk2r/ppp1bppp/2n5/4p3/4P3/2nP1N2/PP3PPP/R1BQKB1R w KQkq -"
"English: Four Knights, Romanishin variation","r1bqk2r/pppp1ppp/2n2n2/4p3/2P5/2b1PN2/PPQP1PPP/R1B1KB1R w KQkq -"
"Catalan: open, Alekhine variation","r1bqkb1r/1ppn1ppp/p3pn2/8/3P4/6P1/PPQ1PPBP/RNB1K1NR b KQkq -"
"Two Knights defense: Ulvestad variation","r1bqkb1r/p1p2ppp/2n2n2/1p1Pp1N1/2B5/8/PPPP1PPP/RNBQK2R w KQkq -"
"QGD Slav: Suchting variation *","r1bqkb1r/pp2pppp/2n2n2/2pp4/3P4/1QP2N2/PP2PPPP/RNB1KB1R b KQkq -"
"Inverted Hanham","r1bqkb1r/ppp2ppp/2n2n2/3pp3/4P3/3P1N2/PPPNBPPP/R1BQK2R b KQkq -"
"Robatsch defense: Two Knights, Suttles variation *","r1bqkb1r/ppp2ppp/2n2n2/3pp3/8/2PP2P1/PP2PPBP/RNBQK1NR b KQkq -"
"Four Knights: Scotch, 4...exd4","r1bqkb1r/pppp1ppp/2n2n2/8/3pP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq -"
"Three Knights: Schlechter variation *","r1bqkb1r/pppp1ppp/5n2/1B2p3/3nP3/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"Sicilian: closed","r1bqkbnr/pp1ppppp/2n5/2p5/4P3/2N3P1/PPPP1P1P/R1BQKBNR b KQkq -"
"Old Indian: Ukrainian variation *","r1bqkbnr/pp2pppp/2n5/2pp4/4P3/3P1N2/PPP2PPP/RNBQKB1R b KQkq -"
"Three Knights game","r1bqkbnr/pppp1ppp/2n5/4p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"Ruy Lopez: Schliemann defense, Berger variation","r1bqkbnr/pppp2pp/2n5/1B2pp2/4P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"Scotch: Rosenthal variation *","r2q1rk1/pppnbppp/8/8/1n6/2N3Q1/PPPP1PPP/R1BK2NR b - -"
"QGD: Cambridge Springs defense *","r2qkb1r/pp3ppp/2n1pn2/2pp4/Q2P2b1/2P1PN2/PP1N1PPP/R1B1KB1R b KQkq -"
"QGD semi-Slav: anti-Meran, Alatortsev system *","r2qkb1r/pp3ppp/2n5/2Pp3b/1P1Np1n1/2P1P2P/P4P2/RNBQKB1R b KQkq -"
"Sicilian: Richter-Rauzer, Richter attack *","r2qkb1r/ppp2ppp/2n5/4p3/6b1/2nPPN2/PP3PPP/R1BQKB1R w KQkq -"
"Dutch: Staunton gambit, Lasker variation *","r2qkbnr/ppp3pp/2n2p2/3pP3/6b1/5NP1/PPPPP2P/RNBQKB1R w KQkq -"
"Philidor: Berger variation *","r2qr1k1/ppp1bppp/2n2n2/4p3/2P3b1/2NPBN2/PP2BPPP/R2Q1RK1 w - -"
"Sicilian: Najdorf, Ivkov variation","r3kb1r/1b3ppp/p2ppn2/qpn1P1B1/3N4/1BN5/PPPQ1PPP/2KRR3 b kq -"
"Danish gambit: Schlechter defense *","rn1qk1nr/pb3ppp/8/2b1p3/3P4/8/PPP2PPP/RNBQKBNR b KQkq -"
"KGA: Allgaier, Cook variation *","rn1qk2r/ppp3p1/8/2bpP1Pp/4b3/7P/PPP3K1/RNBQ1BNR w kq -"
"QGA, Flohr variation","rn1qkb1r/ppp1pppp/4bn2/8/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq -"
"QGD: semi-Slav, Koomen variation","rnb1k1nr/p3qppp/2p1p3/1p6/PbpP4/2N1PN2/1P1B1PPP/R2QKB1R w KQkq -"
"Center game: Charousek variation *","rnb1kbnr/pp3ppp/2p1q3/4p3/8/2N5/PPPPBPPP/R1BQK1NR b KQkq -"
"Center game: Berger variation *","rnb1kbnr/ppp2ppp/4q3/4p3/8/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"Two Knights: Max Lange attack *","rnbq1rk1/ppp2ppp/5n2/2bP4/2B1p3/2N2N2/PPPP1PPP/R1BQK2R w KQ -"
"Nimzo-Indian: 4.e3 O-O, 5.Bd3","rnbq1rk1/pppp1ppp/4pn2/8/1bPP4/2NBP3/PP3PPP/R1BQK1NR b KQ -"
"Neo-Grunfeld, 5.cd *","rnbqk1nr/pp2ppbp/6p1/3p4/3N4/6P1/PPP1PPBP/RNBQK2R b KQkq -"
"Robatsch defense: Geller's system","rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2P2N2/PP3PPP/RNBQKB1R b KQkq -"
"KGA: Kieseritsky, Polerio defense","rnbqk1nr/ppppbp1p/8/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq -"
"Sicilian: Kan, Polugaievsky variation *","rnbqk2r/ppp2ppp/3b4/3np3/2B5/P3P3/1P1P1PPP/RNBQK1NR b KQkq -"
"French: MacCutcheon, advance variation","rnbqk2r/ppp2ppp/4pn2/3pP1B1/1b1P4/2N5/PPP2PPP/R2QKBNR b KQkq -"
"Scotch: Relfsson gambit (`MacLopez') *","rnbqk2r/ppp2ppp/5n2/3Pp3/1b6/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"Ruy Lopez: Bird's defense *","rnbqk2r/pppp1ppp/5n2/3Np3/1b2P3/8/PPPP1PPP/R1BQKBNR b KQkq -"
"Latvian: corkscrew counter-gambit *","rnbqk2r/pppp1ppp/8/2b1P3/4n3/5N2/PPPP2PP/RNBQKB1R b KQkq -"
"Vienna game","rnbqk2r/ppppbppp/3n4/4p2Q/8/1BN5/PPPP1PPP/R1B1K1NR w KQkq -"
"Two Knights defense *","rnbqk2r/ppppbppp/8/8/N3P1n1/2P2N2/P4PPP/R1BQKB1R w KQkq -"
"Sicilian: Najdorf, 6.f4","rnbqkb1r/1p2pppp/p2p1n2/8/3NPP2/2N5/PPP3PP/R1BQKB1R b KQkq -"
"QGD Slav: 4.Nc3","rnbqkb1r/pp2pppp/2p2n2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq -"
"QGA: 3.Nf3 *","rnbqkb1r/pp2pppp/5n2/2Pp4/8/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Gedult attack","rnbqkb1r/ppp1pppp/5n2/3p4/3P2P1/5P2/PPP1P2P/RNBQKBNR b KQkq -"
"Queen's pawn game","rnbqkb1r/ppp1pppp/5n2/3p4/3P4/4PN2/PPP2PPP/RNBQKB1R b KQkq -"
"English: Anglo-Grunfeld defense","rnbqkb1r/ppp1pppp/8/3n4/8/2N2N2/PP1PPPPP/R1BQKB1R b KQkq -"
"Petrov: Cochrane gambit","rnbqkb1r/ppp2Npp/3p1n2/8/4P3/8/PPPP1PPP/RNBQKB1R b KQkq -"
"KGD: Falkbeer, 5.de","rnbqkb1r/ppp2ppp/5n2/3P4/4PP2/8/PPP3PP/RNBQKBNR b KQkq -"
"Sicilian: Marshall variation *","rnbqkb1r/ppp2ppp/5n2/3pp3/2PP4/4P3/PP3PPP/RNBQKBNR b KQkq -"
"Sicilian defense *","rnbqkb1r/pppp1ppp/5n2/4p3/2P5/4P3/PP1P1PPP/RNBQKBNR b KQkq -"
"King's Indian: Anti-Grunfeld","rnbqkb1r/pppppp1p/5np1/3P4/2P5/8/PP2PPPP/RNBQKBNR b KQkq -"
"Sicilian: Kan, 5.Nc3","rnbqkbnr/1p1p1ppp/p3p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R b KQkq -"
"English opening *","rnbqkbnr/pp1ppppp/8/2p5/8/6P1/PPPPPP1P/RNBQKBNR b KQkq -"
"QGD: Chigorin defense *","rnbqkbnr/pp2pppp/8/2pp4/3P4/2N5/PPP1PPPP/R1BQKBNR b KQkq -"
"Queen's gambit declined *","rnbqkbnr/pp2pppp/8/2pp4/3P4/4P3/PPP2PPP/RNBQKBNR b KQkq -"
"Bird's opening: Williams gambit","rnbqkbnr/ppp1pppp/8/3p4/4PP2/8/PPPP2PP/RNBQKBNR b KQkq -"
"French: Two Knights variation","rnbqkbnr/ppp2ppp/4p3/3p4/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"KGD: Falkbeer, 3...e4","rnbqkbnr/ppp2ppp/8/3P4/4pP2/8/PPPP2PP/RNBQKBNR w KQkq -"
"Caro-Kann: exchange variation *","rnbqkbnr/ppp2ppp/8/3p4/3p4/2P5/PP2PPPP/RNBQKBNR w KQkq -"
"Caro-Kann defense *","rnbqkbnr/ppp2ppp/8/3pp3/3P4/2P5/PP2PPPP/RNBQKBNR b KQkq -"
"KP: Indian opening","rnbqkbnr/pppp1ppp/8/4p3/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq -"
"French defense *","rnbqkbnr/pppp1ppp/8/4p3/8/4P3/PPPP1PPP/RNBQKBNR b KQkq -"
"Ruy Lopez: closed (9...Na5) *","rnbqr1k1/ppbp1pp1/2p2n1p/4p3/NP2P3/P2P1N2/2P1BPPP/R1BQ1RK1 w - -"
"Ruy Lopez: Trajkovic counter-attack *","rnbqr1k1/pppp1ppp/1b3n2/4p3/1P2P3/P1N2N2/1BPPBPPP/R2QK2R b KQ -"
"Reti: King's Indian attack, Petrosian variation","rn1qkb1r/pp3ppp/2p1pn2/3p1b2/8/3P1NP1/PPPNPPBP/R1BQ1RK1 b kq -"
"English: symmetrical, main line knight exchange","1rbq1rk1/pp2ppbp/3p1np1/8/2P5/2NQ2P1/PP2PPBP/R1B2RK1 w - -"
"Bishop's opening: Calabrese counter-gambit","rnbqkbnr/pppp2pp/8/4pp2/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq f6"
"Irish (Chicago) gambit","r1bqkbnr/pppp1ppp/8/4n3/3PP3/8/PPP2PPP/RNBQKB1R b KQkq d3"
"Ponziani counter-gambit","r1bqkbnr/pppp2pp/2n5/4pp2/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq f6"
"QGD: semi-Slav, Botvinnik system (anti-Meran with a4)","rnbqkb1r/p4ppp/2p1pn2/1p4B1/P1pPP3/2N2N2/1P3PPP/R2QKB1R b KQkq a3"
"Gruenfeld (4.Bf4)","rnbqk2r/ppp1ppbp/5np1/3p4/2PP1B2/2N1P3/PP3PPP/R2QKBNR b KQkq -"
"Blumenfeld counter-gambit","rnbqkb1r/p2p1ppp/4pn2/1ppP4/2P5/5N2/PP2PPPP/RNBQKB1R w KQkq b6"
"Queen's Indian defence","rn1qkb1r/pbpp1ppp/1p2pn2/8/2PP4/P1N2N2/1P2PPPP/R1BQKB1R b KQkq -"
"King's Indian: fianchetto, Uhlmann (Szabo) variation","r1bq1rk1/ppp2pbp/2np1np1/4p3/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - e6"
"King's Indian: Samisch, Ruban variation","1rbq1rk1/ppp1ppbp/2np1np1/8/2PPP3/2N1BP2/PP2N1PP/R2QKB1R w KQ -"
"Grunfeld: Flohr variation *","r1b1kb1r/pp2pppp/2n2n2/q1pp4/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq -"
"Ruy Lopez: exchange, Bronstein variation","r1b1kbnr/1pp2ppp/p1pq4/4p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 w kq -"
"Nimzo-Indian: Mikenas attack *","r1b1kbnr/pp2pppp/2nq4/1Bpp4/8/4PN2/PPPP1PPP/RNBQK2R w KQkq -"
"Vienna: Hamppe-Muzio, Dubois variation","r1b1kbnr/pppp1p1p/5q2/4n3/2B1PQ2/2N5/PPPP2PP/R1B2RK1 w kq -"
"Ruy Lopez: closed, 8.c3","r1bq1rk1/2ppbppp/p1n2n2/1p2p3/4P3/1BP2N2/PP1P1PPP/RNBQR1K1 b - -"
"Ruy Lopez: open, Bernstein variation, Karpov gambit *","r1bq1rk1/pp1n1ppp/1bp5/3P4/1PN1p1n1/P1N1B3/2P2PPP/R2QKB1R w KQ -"
"QGD: Orthodox defense, Bd3 line","r1bq1rk1/pp1nbppp/2p1pn2/3p2B1/2PP4/2NBPN2/PP3PPP/2RQK2R b K -"
"King's Indian: fianchetto, Panno variation *","r1bq1rk1/pp2ppbp/2n2np1/2pp4/8/P1NP1NP1/1PP1PPBP/R1BQ1RK1 b - -"
"QGD semi-Slav: Chigorin defense","r1bqk2r/pp1n1ppp/2pbpn2/3p4/2PP4/2NBPN2/PP3PPP/R1BQK2R w KQkq -"
"QGD: Semi-Tarrasch, 7.Bd3 *","r1bqk2r/pp3ppp/2nbpn2/3p4/2PN4/2N1P3/PP3PPP/R1BQKB1R w KQkq -"
"Giuoco Piano: Steinitz variation","r1bqk2r/ppp2ppp/2n5/3p4/2BPn3/B1P2N2/P4PPP/R2Q1RK1 b kq -"
"Ruy Lopez: exchange, Keres variation *","r1bqk2r/pppp1ppp/2n2n2/4p3/4P3/P1P5/1PP2PPP/R1BQKBNR w KQkq -"
"Scotch gambit: Vitzhum attack","r1bqk2r/pppp1ppp/2n4n/2b3NQ/2BpP3/8/PPP2PPP/RNB1K2R b KQkq -"
"Ruy Lopez: open, Richter variation","r1bqkb1r/2pp1ppp/p1n5/1p1Pp3/B3n3/5N2/PPP2PPP/RNBQ1RK1 b kq -"
"Sicilian: Pelikan, Chelyabinsk variation","r1bqkb1r/5ppp/p1np1n2/1p2p1B1/4P3/N1N5/PPP2PPP/R2QKB1R w KQkq -"
"QGD semi-Slav: 5...Nd7","r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R w KQkq -"
"QGD Slav *","r1bqkb1r/pp1n1ppp/4pn2/2pp4/3P4/2P1PN2/PP3PPP/RNBQKB1R w KQkq -"
"Sicilian: Najdorf, Zagreb (fianchetto) variation *","r1bqkb1r/ppp2p1p/2n3p1/3np3/8/P2P1N2/1P2PPPP/RNBQKB1R w KQkq -"
"Philidor: Philidor counter-gambit, Zukertort variation *","r1bqkb1r/ppp2ppp/2n2n2/3pp3/4PP2/3P4/PPP3PP/RNBQKBNR w KQkq -"
"Ruy Lopez: Cozio defense","r1bqkb1r/ppppnppp/2n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Nimzo-Indian: Kmoch variation *","r1bqkbnr/pp2p1pp/2n2p2/1Bpp4/8/4PN2/PPPP1PPP/RNBQK2R w KQkq -"
"QGA: Linares variation *","r1bqkbnr/pp3ppp/2n5/2P1p3/1PPp4/5N2/P3PPPP/RNBQKB1R b KQkq -"
"Alekhine's defense: Spielmann variation *","r1bqkbnr/pppp1ppp/2n5/8/3P4/4p3/PPPNPPPP/RNBQKB1R w KQkq -"
"Center game","r1bqkbnr/pppp1ppp/2n5/8/3QP3/8/PPP2PPP/RNB1KBNR w KQkq -"
"Ruy Lopez: Berlin defense, hedgehog variation","r2qk2r/pppbbppp/2np1n2/1B2p3/3PP3/2N2N2/PPP2PPP/R1BQ1RK1 w kq -"
"Sicilian: Dragon, 6.Be3 *","r2qkb1r/ppp2ppp/2n1b3/3np3/8/3P1NP1/PP2PP1P/RNBQKB1R w KQkq -"
"Sicilian: Richter-Rauzer, Larsen variation, 7.Qd2 *","r3kb1r/pppq1ppp/2n5/3np3/6b1/2NP1N2/PP1BPPPP/R2QKB1R w KQkq -"
"Queen's Indian: Riumin variation","rn1qk2r/pbppbppp/1p2pn2/8/2PP4/5NP1/PP1BPPBP/RN1QK2R w KQkq -"
"Queen's Indian: Nimzovich variation (exaggerated fianchetto)","rn1qkb1r/p1pp1ppp/bp2pn2/8/2PP4/5NP1/PP2PP1P/RNBQKB1R w KQkq -"
"English: Caro-Kann defensive system, Bogolyubov variation","rn1qkbnr/pp2pppp/2p5/3p4/2P3b1/1P3N2/P2PPPPP/RNBQKB1R w KQkq -"
"Scotch: Blackburne attack *","rn2kb1r/pp1q1ppp/2p1b3/3np3/2B5/2N2Q2/PPPPNPPP/R1B1K2R w KQkq -"
"Catalan: open, Alekhine variation *","rnb1k1nr/ppq1ppbp/6p1/3p4/8/P3PN2/1PPN1PPP/R1BQKB1R w KQkq -"
"Petrov: modern attack, main line *","rnb1kb1r/ppp2ppp/5n2/3qN3/4p3/8/PPPP1PPP/RNBQKB1R w KQkq -"
"Scandinavian: Anderssen counter-attack","rnb1kbnr/ppp2ppp/8/q3p3/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"Sicilian: Canal-Sokolsky attack, Bronstein gambit *","rnbq1rk1/pp3ppp/2p2n2/3pp3/2P5/2NP1N2/PP1QPPPP/R3KB1R w KQ -"
"French: classical, Frankfurt variation","rnbqk1nr/p1p1bppp/1p2p3/3pP3/3P4/2N1B3/PPP2PPP/R2QKBNR w KQkq -"
"KGA: bishop's gambit, Maurian defense *","rnbqk1nr/pppp2pp/8/2b1pP2/8/2N5/PPPP1PPP/R1BQKBNR b KQkq -"
"Nimzo-Indian: Fischer variation","rnbqk2r/p1pp1ppp/1p2pn2/8/1bPP4/2N1P3/PP3PPP/R1BQKBNR w KQkq -"
"QGA: Alekhine defense, Alatortsev variation *","rnbqk2r/pp3ppp/4pn2/2b3B1/3p4/P3P3/1PP2PPP/RN1QKBNR w KQkq -"
"French: classical, Anderssen variation","rnbqk2r/ppp1bppp/4pB2/3p4/3PP3/2N5/PPP2PPP/R2QKBNR b KQkq -"
"Ruy Lopez: Anderssen variation *","rnbqk2r/ppp2ppp/3p1n2/b3p3/4P3/P1N2N2/1PPP1PPP/R1BQKB1R w KQkq -"
"Reti accepted *","rnbqkb1r/pp1ppppp/5n2/2P5/8/8/PPP1PPPP/RNBQKBNR b KQkq -"
"Sicilian: Nimzovich-Rubinstein variation","rnbqkb1r/pp1ppppp/5n2/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Pirc: Ufimtsev-Pytel variation","rnbqkb1r/pp2pppp/2pp1n2/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"Caro-Kann: Tartakower (Nimzovich) variation","rnbqkb1r/pp3ppp/2p2p2/8/3P4/8/PPP2PPP/R1BQKBNR w KQkq -"
"QGA, Janowsky-Larsen variation *","rnbqkb1r/pp3ppp/4pn2/2Pp2B1/8/5N2/PPP1PPPP/RN1QKB1R b KQkq -"
"Alekhine's defense: modern, Alekhine variation *","rnbqkb1r/pp3ppp/5n2/2pp2B1/3Np3/3P4/PPP1PPPP/RN1QKB1R w KQkq -"
"Reti: Lisitsin gambit deferred *","rnbqkb1r/ppp2ppp/3p1n2/4p3/5P2/5N2/PPPPP1PP/RNBQKB1R w KQkq -"
"QGD: 3...Nf6","rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"Scotch opening *","rnbqkb1r/ppp2ppp/5n2/3pp3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"KGA: Becker defense *","rnbqkb1r/pppp2pp/5n2/4pP2/8/7P/PPPP1PP1/RNBQKBNR b KQkq -"
"Hippopotamus defense","rnbqkb1r/ppppp2p/5ppn/8/2PPP3/8/PP3PPP/RNBQKBNR w KQkq -"
"Sicilian: Andreaschek gambit","rnbqkbnr/pp1p1ppp/8/4p3/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq -"
"Alekhine's defense: two pawns' (Lasker's) attack *","rnbqkbnr/pp1p1ppp/8/8/2p1p3/1N6/PPPPPPPP/RNBQKB1R w KQkq -"
"Caro-Kann: Rasa-Studier gambit","rnbqkbnr/pp2pppp/2p5/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR b KQkq -"
"Danish gambit: Sorensen defense *","rnbqkbnr/pp3ppp/2p5/3Pp3/3P4/8/PPP2PPP/RNBQKBNR b KQkq -"
"Benoni: four pawns attack, main line","rnbqr1k1/pp3pbp/3p1np1/2pP4/4PP2/2N2N2/PP2B1PP/R1BQK2R w KQ -"
"Ruy Lopez: open, 9...Be7, 10.Re1 *","rnbqr1k1/pp3ppp/1bp2n2/4N3/1P1Pp3/P1N1B3/2P1BPPP/R2QK2R w KQ -"
"Bird's opening: Lasker variation","rnbqkb1r/pp2pppp/5n2/2pp4/5P2/4PN2/PPPP2PP/RNBQKB1R w KQkq c6"
"Reti: Lisitsin gambit deferred","rnbqkb1r/ppppp1pp/5n2/5p2/4P3/3P1N2/PPP2PPP/RNBQKB1R b KQkq e3"
"Blackmar-Diemer gambit","rnbqkb1r/ppp1pppp/5n2/3p4/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq e3"
"Benoni defence","rnbqkb1r/pp1ppppp/5n2/2p5/2PP4/8/PP2PPPP/RNBQKBNR w KQkq c6"
"Bishop's opening (with 3.d3)","r2qk2r/ppp1bppp/2n5/3np3/2B3b1/3P1N2/PPP2PPP/RNBQR1K1 w kq -"
"Pirc-Robatsch (4.Be3 b6)","rnbqk1nr/p1p1ppbp/1p1p2p1/8/3PP3/2N1B3/PPP2PPP/R2QKBNR w KQkq -"
"KGA: Gianutio counter-gambit","rnbqkbnr/pppp2pp/8/5p2/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq f6"
"Robatsch defence","rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"Four knights: Alatortsev variation","r1b2rk1/ppp1qppp/2n2n2/1B1pp3/1b2P3/3P1N2/PPP1NPPP/R1BQ1RK1 w - d6"
"Sicilian: Najdorf, Goteborg (Argentine) variation","rnbqk2r/1p2bp2/p2ppn1p/6p1/3NPP1B/2N2Q2/PPP3PP/R3KB1R w KQkq g6"
"QGA: Haberditz variation","rnbqkbnr/2p1pppp/p7/1p6/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq b6"
"Gruenfeld: Lundin variation","rnbqkb1r/pp2pp1p/6p1/2p3B1/2PPp3/8/PP1QPPPP/R3KBNR w KQkq c6"
"Gruenfeld: Russian, Smyslov variation","rn1q1rk1/pppnppbp/6p1/8/2QPP1b1/2N1BN2/PP3PPP/R3KB1R w KQ -"
"English: closed, 5.Rb1 *","1rbqk1nr/pp1pppbp/2n3p1/2p5/4P3/2N3P1/PPPP1PBP/R1BQK1NR w KQk -"
"Nimzo-Indian: classical, Noa variation, main line *","r1b1kbnr/1p2pppp/p1q5/2ppN3/3P4/4P3/PPP2PPP/RNBQK2R b KQkq -"
"Scotch: Steinitz variation","r1b1kbnr/pppp1ppp/2n5/8/3NP2q/2N5/PPP2PPP/R1BQKB1R b KQkq -"
"Sicilian: Scheveningen, classical main line","r1b2rk1/1pq1bppp/p1nppn2/8/3NPP2/2N1B3/PPP1B1PP/R3QRK1 w - -"
"Evans gambit: Fraser attack *","r1b2rk1/p4ppp/2n2n2/q1bpp1B1/8/1BNP4/PPP2PPP/R2QK1NR w KQ -"
"QGD: Orthodox defense, Bd3 line","r1b2rk1/pp1nqppp/2p1p3/3n4/2BP4/2N1PN2/PP3PPP/2RQK2R w K -"
"QGD: Semi-Tarrasch, Levenfish variation *","r1b2rk1/pp2qppp/2nb1n2/2p1p3/2BP4/2N1PN2/PP2QPPP/R1B2RK1 w - -"
"QGD: Orthodox defense, Swiss (Henneberger) variation","r1bq1rk1/1ppnbppp/p3pn2/3p2B1/2PP4/2N1PN2/PP3PPP/2RQKB1R w K -"
"Benoni: classical, 9...Re8, 10.Nd2 *","r1bq1rk1/pp1nbppp/2n5/4p3/2Pp4/3P1NP1/PP3PBP/RNBQR1K1 w - -"
"Sicilian: Richter-Rauzer, Rauzer attack, Geller variation","r1bq1rk1/pp2bppp/2np1n2/4p1B1/3NPP2/2N5/PPPQ2PP/2KR1B1R w - -"
"King's Indian: Petrosian system, Keres variation","r1bq1rk1/pppn1pb1/3p3p/3Pp1pn/2P1P2P/2N2NB1/PP2BPP1/R2QK2R b KQ -"
"Ruy Lopez: classical defense, Benelux variation","r1bq1rk1/pppp1ppp/1bn2n2/1B2p3/3PP3/2P2N2/PP3PPP/RNBQ1RK1 w - -"
"Evans gambit","r1bqk1nr/pppp1ppp/2n5/b3p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq -"
"Ruy Lopez: Wing attack","r1bqk2r/2ppbppp/p1n2n2/1p2p3/P3P3/1B3N2/1PPP1PPP/RNBQ1RK1 b kq -"
"Sicilian: Scheveningen, Tal variation","r1bqk2r/pp2bppp/2nppn2/8/3NPP2/2N1BQ2/PPP3PP/R3KB1R b KQkq -"
"Sicilian: Dragon, classical, Amsterdam variation","r1bqk2r/pp2ppbp/2np1np1/8/3NP3/2N1B3/PPPQBPPP/R3K2R b KQkq -"
"Ruy Lopez: Berlin defense, Rosenthal variation","r1bqkb1r/1ppp1ppp/p1n5/1B2p3/3Pn3/5N2/PPP2PPP/RNBQ1RK1 w kq -"
"French: Steinitz, Boleslavsky variation","r1bqkb1r/pp1n1ppp/2n1p3/2ppP3/3P1P2/2N1BN2/PPP3PP/R2QKB1R b KQkq -"
"QGD","r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQkq -"
"Caro-Kann: Panov-Botvinnik, Herzog defense","r1bqkb1r/pp2pppp/5n2/n2P2B1/2p5/2N5/PP3PPP/R2QKBNR w KQkq -"
"French: Rubinstein, Capablanca line","r1bqkb1r/ppp2ppp/4pn2/4N3/3P4/8/PPP2PPP/R1BQKB1R b KQkq -"
"Old Indian: main line","r1bqkb1r/pppn1ppp/3p1n2/4p3/2PPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq -"
"Ruy Lopez: exchange variation, 5.O-O","r1bqkbnr/1pp2ppp/p1p5/4p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 b kq -"
"QGD: 3...Nf6 *","r1bqkbnr/pp2pppp/2n5/2pp4/3P4/4PN2/PPP2PPP/RNBQKB1R b KQkq -"
"Benko gambit: Zaitsev system *","r1bqkbnr/pp2pppp/2n5/8/1pPp4/P4N2/3PPPPP/RNBQKB1R w KQkq -"
"Vienna game, Max Lange defense *","r1bqkbnr/pppp1ppp/2n5/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq -"
"Ruy Lopez: Berlin defense, Tarrasch trap","r2q1rk1/pppbbppp/2np1n2/1B2p3/3PP3/2N2N2/PPP2PPP/R1BQR1K1 w - -"
"Sicilian: Najdorf, 6...e6 *","r2qkb1r/ppp2ppp/2n5/3np3/6b1/P2PPN2/1P3PPP/RNBQKB1R b KQkq -"
"Sicilian: Najdorf, 7...Qb6 *","r2qkb1r/ppp3pp/2n5/3npp2/6b1/PQ1PPN2/1P3PPP/RNB1KB1R b KQkq -"
"QGD: Been-Koomen variation *","r2qkbnr/pp2pppp/2n5/2pp4/2PP2b1/4PN2/PP3PPP/RNBQKB1R b KQkq -"
"QGD: Albin counter-gambit, Krenosz variation","r3k1nr/ppp1qppp/2n5/4P3/1bPp4/5N1P/PP1BPPP1/R2QKB1R w KQkq -"
"KGD: Falkbeer, Tarrasch variation","rn1q1rk1/ppp2ppp/8/2bP1b2/4nPP1/5N2/PPP1Q2P/RNB1KB1R w KQ -"
"Sicilian: Chekhover, Zaitsev variation *","rnb1k2r/ppp2ppp/5n2/3qp3/1b6/2NP4/PP1QPPPP/R1B1KBNR b KQkq -"
"Scotch gambit: Cochrane-Shumov defense *","rnb1k2r/ppp2ppp/8/3Pp3/2qP4/2N3P1/PPP2K1P/R1BQ3R b kq -"
"KGA: bishop's gambit, Chigorin's attack (Gifford variation)","rnb1kbnr/ppp2p1p/8/3B2p1/4Pp1q/6P1/PPPP3P/RNBQ1KNR b kq -"
"Ruy Lopez: open, Schlechter defense *","rnbq1rk1/1pp2ppp/1b3n2/p2NN3/1P1PP3/P7/2P2PPP/R1BQKB1R b KQ -"
"Dutch: stonewall, Botwinnik variation *","rnbq1rk1/p3ppbp/1p3np1/2pp4/3P1P2/4PN2/PPP1B1PP/RNBQ1RK1 w - -"
"Neo-Grunfeld, 6.O-O c6","rnbq1rk1/pp2ppbp/2p2np1/3p4/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - -"
"Dutch: classical variation","rnbq1rk1/ppp1b1pp/3ppn2/5p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - -"
"King's Indian: Averbakh system","rnbq1rk1/ppp1ppbp/3p1np1/6B1/2PPP3/2N5/PP2BPPP/R2QK1NR b KQ -"
"Ruy Lopez: Berlin defense, Nyholm attack *","rnbq1rk1/ppp2ppp/5n2/3Pp3/1b6/2N2N2/PPPP1PPP/R1BQKB1R w KQ -"
"Nimzo-Indian: 4.e3 e8g8, 5.Nf3, without ...d5","rnbq1rk1/pppp1ppp/4pn2/8/1bPP4/2N1PN2/PP3PPP/R1BQKB1R b KQ -"
"Ruy Lopez: exchange, Gligoric variation *","rnbq1rk1/pppp1ppp/5n2/4p3/4P3/P1P2P2/1PP3PP/R1BQKBNR b KQ -"
"Reti: King's Indian attack, Yugoslav variation *","rnbq1rk1/ppppppbp/5np1/6B1/3P4/2P2N2/PP2PPPP/RN1QKB1R b KQ -"
"QGD: semi-Slav, Abrahams variation","rnbqk1nr/5ppp/2p1p3/pp6/PbpP4/2N1PN2/1P1B1PPP/R2QKB1R w KQkq -"
"Bishop's opening: MacDonnell double gambit *","rnbqk1nr/p1pp2pp/8/1Bb1pp2/4P3/8/PPPP1PPP/RNBQK1NR w KQkq -"
"Bishop's opening: Philidor counter-attack *","rnbqk1nr/pppp1ppp/8/2b1p3/4P3/2P5/PP1P1PPP/RNBQKBNR b KQkq -"
"Dutch: Leningrad, Karlsbad variation","rnbqk1nr/ppppp1bp/6p1/5p2/3P4/6PN/PPP1PPBP/RNBQK2R b KQkq -"
"Sicilian: Pin, Koch variation","rnbqk2r/pp1p1ppp/4pn2/4P3/1b1N4/2N5/PPP2PPP/R1BQKB1R b KQkq -"
"Catalan: closed, 5.Nf3","rnbqk2r/ppp1bppp/4pn2/3p4/2PP4/5NP1/PP2PPBP/RNBQK2R b KQkq -"
"Pirc: classical system, 5.Be2","rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQK2R b KQkq -"
"KGA: Kieseritsky, Rice gambit","rnbqk2r/ppp2p1p/3b1n2/3PN3/2B2ppP/8/PPPP2P1/RNBQ1RK1 b kq -"
"Petrov: classical attack, Marshall variation *","rnbqk2r/ppp2ppp/3b1n2/3pN3/3P4/3B4/PPP2PPP/RNBQK2R b KQkq -"
"Ruy Lopez: Berlin defense, Mortimer variation *","rnbqk2r/ppp2ppp/3p1n2/4p3/1b2P3/5N2/PPPPNPPP/R1BQKB1R b KQkq -"
"Nimzo-Indian: classical variation","rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N5/PPQ1PPPP/R1B1KBNR b KQkq -"
"English: Torre defensive system *","rnbqkb1r/p2ppp1p/1p3np1/2p3B1/3P4/2P2N2/PP2PPPP/RN1QKB1R b KQkq -"
"Reti: advance variation *","rnbqkb1r/pp1ppppp/5n2/2pP4/8/8/PPP1PPPP/RNBQKBNR b KQkq -"
"Caro-Kann: Alekhine gambit","rnbqkb1r/pp2pppp/2p2n2/8/3PN3/3B4/PPP2PPP/R1BQK1NR b KQkq -"
"Queen's Indian defense *","rnbqkb1r/pp2pppp/5n2/2pp4/8/1P2PN2/P1PP1PPP/RNBQKB1R b KQkq -"
"QGD: Semi-Tarrasch, Primitive Pillsbury variation","rnbqkb1r/pp3ppp/4pn2/3p2B1/2PQ4/2N2N2/PP2PPPP/R3KB1R b KQkq -"
"QGA: classical, Steinitz variation","rnbqkb1r/pp3ppp/4pn2/8/2Bp4/4PN2/PP3PPP/RNBQ1RK1 w kq -"
"Scandinavian defense","rnbqkb1r/ppp1pppp/5n2/3P4/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Petrov: French attack","rnbqkb1r/ppp2ppp/3p4/8/4n3/3P1N2/PPP2PPP/RNBQKB1R b KQkq -"
"English: Mikenas-Carls, Flohr variation","rnbqkb1r/ppp2ppp/4pn2/3pP3/2P5/2N5/PP1P1PPP/R1BQKBNR b KQkq -"
"Sicilian: Nimzovich variation *","rnbqkb1r/ppp2ppp/8/3np3/3P4/2N5/PP2PPPP/R1BQKBNR b KQkq -"
"Sicilian: Kan variation *","rnbqkb1r/ppp2ppp/8/3np3/8/P3P3/1P1P1PPP/RNBQKBNR b KQkq -"
"KGA: Allgaier, Schlechter defense","rnbqkb1r/pppp1p1p/5n2/6N1/4PppP/8/PPPP2P1/RNBQKB1R w KQkq -"
"KP: Colorado counter *","rnbqkb1r/pppp1ppp/5n2/4p3/5P2/2N5/PPPPP1PP/R1BQKBNR b KQkq -"
"Alekhine's defense: Steiner variation","rnbqkb1r/pppppppp/1n6/4P3/2P5/1P6/P2P1PPP/RNBQKBNR b KQkq -"
"KP: Nimzovich defense, Wheeler gambit *","rnbqkbnr/p4ppp/2p5/3pp3/8/2N5/PPPPPPPP/R1BQKBNR w KQkq -"
"English: Adorjan defense *","rnbqkbnr/pp1p1ppp/8/2p1p3/4P3/6P1/PPPP1P1P/RNBQKBNR b KQkq -"
"Sicilian: closed","rnbqkbnr/pp1ppppp/8/2p5/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq -"
"QGD: Albin counter-gambit *","rnbqkbnr/pp2pppp/8/2pp4/3PP3/8/PPP2PPP/RNBQKBNR b KQkq -"
"Dutch defense *","rnbqkbnr/pp2pppp/8/2pp4/5P2/5N2/PPPPP1PP/RNBQKB1R b KQkq -"
"Caro-Kann: Panov-Botvinnik attack","rnbqkbnr/pp2pppp/8/3p4/2PP4/8/PP3PPP/RNBQKBNR b KQkq -"
"Queen's pawn: Chigorin variation","rnbqkbnr/ppp1pppp/8/3p4/3P4/2N5/PPP1PPPP/R1BQKBNR b KQkq -"
"KGA: bishop's gambit, Bledow variation","rnbqkbnr/ppp2ppp/8/3p4/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq -"
"Pirc defense *","rnbqkbnr/ppp2ppp/8/3pp3/8/3P1N2/PPP1PPPP/RNBQKB1R b KQkq -"
"Scandinavian (center counter) defense *","rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR b KQkq -"
"KGD: Falkbeer counter-gambit *","rnbqkbnr/pppp2pp/8/4pp2/3PP3/8/PPP2PPP/RNBQKBNR b KQkq -"
"Dutch defense","rnbqkbnr/ppppp1pp/8/5p2/3P4/6P1/PPP1PP1P/RNBQKBNR b KQkq -"
"Bird: From gambit: Lasker variation","rnbqk1nr/ppp2p1p/3b4/6p1/8/5N2/PPPPP1PP/RNBQKB1R w KQkq g6"
"English: Bremen","rnbqk2r/ppppppbp/5np1/8/2P5/5NP1/PP1PPPBP/RNBQK2R b KQkq -"
"English: symmetrical, modern line","rnbq1rk1/pp1p1ppp/4pn2/8/1bPp4/2N2NP1/PP2PPBP/R1BQK2R w KQ -"
"Old Indian: Bg4","rn1qkb1r/ppp1pppp/3p1n2/8/2PP2b1/2N2N2/PP2PPPP/R1BQKB1R b KQkq -"
"Alekhine's defence: Scandinavian variation","rnbqkb1r/ppp1pppp/5n2/3p4/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq d6"
"Pirc: 150 attack","r1bqk2r/pp1nppbp/2pp1np1/8/3PP2P/2N1BP2/PPPQ2P1/R3KBNR b KQkq h3"
"Caro-Kann defence","rnbqkbnr/pp2pppp/2p5/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq d6"
"Sicilian: Sveshnikov, Kramnik centre pawn","r1bqk2r/5pbp/p1np4/1p1N1P2/4p3/N5P1/PPP2P1P/R2QKB1R w KQkq -"
"Ruy Lopez: Schliemann defence","r1bqkbnr/pppp2pp/2n5/1B2pp2/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq f6"
"Trompovsky attack: Hodgson variation","rnbqk2r/pp3ppp/2pb1p2/3p4/3P4/3BPQ2/PPP2PPP/RN2K1NR b KQkq -"
"QGD: semi-Slav, anti-Meran (4...dxc4)","rnbqk1r1/p4pP1/2p1p3/1p4p1/PbpP4/2N2N2/1P3PPP/R2QKB1R w KQq -"
"King's Indian: (3.g3) counterthrust variation","rnbqk2r/ppp1ppbp/5np1/3p4/2PP4/6P1/PP2PPBP/RNBQK1NR w KQkq d6"
"Two Knights: Max Lange attack, Berger variation","2kr3r/ppp2ppp/1bn1bPq1/6N1/2ppNPP1/8/PPP4P/R1BQR1K1 w - -"
"English: symmetrical, Geller variation","r1b1kb1r/pp1p1ppp/1qn1pn2/8/2PN4/2N3P1/PP2PP1P/R1BQKB1R w KQkq -"
"Grunfeld: Russian variation *","r1b1kb1r/pp2pppp/1qn2n2/2pp4/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq -"
"Nimzo-Indian: Spielmann variation *","r1b1kbnr/pp2pppp/1qn5/1Bpp4/8/4PN2/PPPP1PPP/RNBQK2R w KQkq -"
"French: Winawer, advance, Russian variation *","r1b1kbnr/ppp2ppp/2n5/1B1p2q1/2PPp3/4P3/PP3PPP/RNBQK1NR w KQkq -"
"Two Knights defense: Fegatello attack, Polerio defense","r1bq1b1r/ppp1n1pp/4k3/3np3/2B5/2N2Q2/PPPP1PPP/R1B1K2R w KQ -"
"QGD: Orthodox defense, Pillsbury attack","r1bq1rk1/p1pnbppp/1p3n2/3p2B1/3P4/2NBPN2/PP3PPP/2RQK2R b K -"
"Evans gambit *","r1bq1rk1/p4ppp/2n2n2/2bpp1B1/8/1BNP4/PPP2PPP/R2QK1NR b KQ -"
"English: symmetrical, main line with d4","r1bq1rk1/pp1pppbp/2n2np1/2p5/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - -"
"Nimzo-Indian: 4.e3, main line with 8...Bxc3","r1bq1rk1/pp3ppp/2n1pn2/2pp4/2PP4/P1PBPN2/5PPP/R1BQ1RK1 b - -"
"Vienna: Pierce gambit, Rushmere attack *","r1bq1rk1/ppp3pp/2n2P2/2bp1PB1/8/2p5/PPP2P1P/R2QKBNR w KQ -"
"Sicilian: closed, 6.f4 e5 (Botvinnik)","r1bqk1nr/pp3pbp/2np2p1/2p1p3/4PP2/2NP2P1/PPP3BP/R1BQK1NR w KQkq -"
"Two Knights: Max Lange attack, Krause variation","r1bqk2r/pppp1ppp/2n5/2b1P3/2Bp2n1/2P2N2/PP3PPP/RNBQ1RK1 b kq -"
"Ruy Lopez: open, Knorre variation","r1bqkb1r/1ppp1ppp/p1n5/4p3/B3n3/2N2N2/PPPP1PPP/R1BQ1RK1 b kq -"
"Ruy Lopez: Cozio defense deferred","r1bqkb1r/1pppnppp/p1n5/4p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"QGD semi-Slav: Meran","r1bqkb1r/3n1ppp/p3pn2/1pp5/3PP3/2NB1N2/PP3PPP/R1BQK2R w KQkq -"
"English: Four Knights, Nimzovich variation *","r1bqkb1r/pp1p1ppp/2n2n2/2p1p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"Nimzo-Indian: Fischer variation, 5.Ne2 *","r1bqkb1r/pp2nppp/2n1p3/1Bpp4/8/1P2PN2/P1PP1PPP/RNBQK2R w KQkq -"
"Nimzo-Indian: Reshevsky variation *","r1bqkb1r/pp2nppp/2n1p3/1Bpp4/8/4PN2/PPPP1PPP/RNBQ1RK1 w kq -"
"QGD Slav: 4.Nc3 *","r1bqkb1r/pp2pppp/2n2n2/2pp4/3P4/2P2N2/PP2PPPP/RNBQKB1R w KQkq -"
"King's Indian: 5.Nf3 *","r1bqkb1r/pp3ppp/2n2n2/2ppp3/8/3P1NP1/PPP1PPBP/RNBQK2R w KQkq -"
"Ponziani: Leonhardt variation","r1bqkb1r/ppp2ppp/2n2n2/3pp3/Q3P3/2P2N2/PP1P1PPP/RNB1KB1R w KQkq -"
"Scotch: Steinitz variation *","r1bqkb1r/ppp2ppp/2n5/3np2Q/8/2N5/PPPP1PPP/R1B1KBNR w KQkq -"
"French: Two Knights variation *","r1bqkb1r/pppp1ppp/2n2n2/4p3/3P4/4P3/PPP2PPP/RNBQKBNR w KQkq -"
"English: Mikenas-Carls variation *","r1bqkbnr/pp1p1ppp/2n5/2p1p3/8/4PN2/PPPP1PPP/RNBQKB1R w KQkq -"
"Sicilian: Nimzovich variation","r1bqkbnr/pp2pppp/2n5/3p4/3NP3/8/PPP2PPP/RNBQKB1R w KQkq -"
"Vienna gambit *","r1bqkbnr/ppp3pp/2np4/4N3/3Pp3/8/PPP2PPP/RNBQKB1R w KQkq -"
"French: Tarrasch *","r1bqkbnr/pppn1ppp/8/3pp3/3P4/4P3/PPP2PPP/RNBQKBNR w KQkq -"
"Nimzo-Indian: Samisch, Capablanca variation","r1bqnrk1/p2p1ppp/1pn1p3/2p5/2PPP3/P1PB4/4NPPP/R1BQK2R w KQ -"
"Two Knights defense: Canal variation *","r1bqr1k1/ppp2ppp/2n2n2/2bPN3/3P4/2N5/PPP2PPP/R1BQKB1R w KQ -"
"Alekhine's defense: four pawns attack, Tartakower variation *","r2q1rk1/pp2b1pp/2n1bn2/2pp4/4pB2/1NN1P3/PPPQBPPP/2KR3R b - -"
"Ruy Lopez: open, classical defense","r2qk2r/2p1bppp/p1n1b3/1p1pP3/4n3/1BP2N2/PP3PPP/RNBQ1RK1 w kq -"
"Ruy Lopez: Wormald attack, Grunfeld variation","r2qk2r/2p1bppp/p1np1n2/1p2p3/3PP1b1/1BP2N2/PP2QPPP/RNB1K2R w KQkq -"
"QGD: Pillsbury attack *","r2qk2r/pp3ppp/2nbp3/3p4/3Pn1b1/1P3N2/PBP1BPPP/RN1Q1RK1 w kq -"
"Ruy Lopez: Steinitz defense deferred, Lipnitsky variation","r2qkb1r/2p2ppp/p1pp1n2/4p3/3PP1b1/5N2/PPP2PPP/RNBQ1RK1 w kq -"
"Sicilian: Najdorf, 6.Bg5 *","r2qkb1r/ppp2ppp/2n5/3np3/6b1/P2P1N2/1P2PPPP/RNBQKB1R w KQkq -"
"Bogo-Indian defense, Monticelli trap","rn1q1rk1/pbpp1ppp/1p2p3/6N1/2PP4/2n3P1/PPQ1PPBP/R3K2R b KQ -"
"Queen's Indian: Marienbad system","rn1qkb1r/pb1ppppp/1p3n2/2p5/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq -"
"Torre attack (Tartakower variation) *","rn1qkb1r/ppp1pppp/5n2/3p4/3P2b1/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"Guatemala defense","rn1qkbnr/p1pppppp/bp6/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -"
"KGA: Muzio gambit, Kling and Horwitz counter-attack *","rnbq1rk1/pppp2pp/5n2/2b1pPP1/8/8/PPPPQP1P/RNB1KBNR b KQ -"
"QGD: Charousek (Petrosian) variation","rnbqk1nr/ppp1bppp/4p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"French: classical, Vistaneckis (Nimzovich) variation","rnbqk1nr/ppp1bppp/4p3/3pP1B1/3P4/2N5/PPP2PPP/R2QKBNR w KQkq -"
"Queen's pawn: stonewall attack *","rnbqk1nr/ppp2ppp/3bp3/3p4/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"KGA: Philidor gambit","rnbqk1nr/pppp1pbp/8/6p1/2B1Pp1P/5N2/PPPP2P1/RNBQK2R b KQkq -"
"Scotch: Lolli variation *","rnbqkb1r/ppp2ppp/5n2/3Np3/4P3/8/PPPP1PPP/R1BQKBNR b KQkq -"
"Reti: Pirc-Lisitsin gambit *","rnbqkb1r/pppp1ppp/5n2/4p3/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -"
"Budapest: Fajarowicz, Steiner variation","rnbqkb1r/pppp1ppp/8/4P3/2P1n3/8/PPQ1PPPP/RNB1KBNR b KQkq -"
"KGA: Kieseritsky, Neumann defense *","rnbqkb1r/pppp2p1/8/4pPPp/4n3/2N5/PPPP1P1P/R1BQKBNR b KQkq -"
"KGA: Gianutio counter-gambit *","rnbqkb1r/pppp2pp/5n2/4pP2/5P2/8/PPPP2PP/RNBQKBNR b KQkq -"
"Nimzovich-Larsen attack *","rnbqkbnr/p1pppppp/1p6/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Old Benoni defense","rnbqkbnr/pp1p1ppp/8/2pPp3/8/8/PPP1PPPP/RNBQKBNR w KQkq e6"
"French: King's Indian attack *","rnbqkbnr/ppp2ppp/3p4/4p3/8/4P3/PPPP1PPP/RNBQKBNR w KQkq -"
"Dutch: Staunton gambit *","rnbqkbnr/ppp2ppp/8/3pP3/8/8/PPPPP1PP/RNBQKBNR b KQkq -"
"KGA: Allgaier gambit","rnbqkbnr/pppp1p1p/8/6N1/4PppP/8/PPPP2P1/RNBQKB1R b KQkq -"
"KGA: Orsini gambit","rnbqkbnr/pppp1ppp/8/8/4Pp2/1P6/P1PP2PP/RNBQKBNR b KQkq -"
"Robatsch (modern) defense","rnbqkbnr/pppppp1p/6p1/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Reti: King's Indian attack, herringbone variation","rn1qkb1r/pp3ppp/2p1pn2/3p1b2/8/1P3NP1/PBPPPPBP/RN1QK2R w KQkq -"
"English: symmetrical, Botvinnik system reversed","r1bqk1nr/pp1p1pbp/2n3p1/2p1p3/2P5/2N2NP1/PP1PPPBP/R1BQK2R w KQkq e6"
"French: Tarrasch, open variation","rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq c6"
"Pirc-Robatsch (4.Be3 e5)","rnbqk1nr/ppp2pbp/3p2p1/4p3/3PP3/2N1B3/PPP2PPP/R2QKBNR w KQkq e6"
"KGA: bishop's gambit, Bryan counter-gambit","rnb1kbnr/p1pp1ppp/8/1p6/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq b6"
"Ruy Lopez: closed, Leonhardt variation","rnb1k2r/2q1bp1p/p2p1n2/1ppPp1p1/4P3/2P2N1P/PPBN1PP1/R1BQR1K1 w kq g6"
"Queen's pawn: Mason variation, Steinitz counter-gambit","rnbqkbnr/pp2pppp/8/2pp4/3P1B2/8/PPP1PPPP/RN1QKBNR w KQkq c6"
"Gruenfeld: Russian variation (with e4)","rnbq1rk1/ppp1ppbp/5np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R b KQ e3"
"Grunfeld: Grunfeld gambit, Botvinnik variation *","2rqkbnr/pp3ppp/2n1p3/2p2b2/2pP4/4BNP1/PP2PPBP/RN1Q1RK1 b k -"
"Two Knights defense: Fegatello attack, Leonhardt variation *","r1b1k2r/1pp2ppp/p1n5/2bpq3/3NP3/2P1K3/PPN3PP/R1BQ1B1R b kq -"
"Grunfeld: Russian, Smyslov variation *","r1b1kb1r/pp3ppp/2n2n2/2qpp1B1/8/5NP1/PPP1PPBP/RN1Q1RK1 b kq -"
"Vienna gambit: Bardeleben variation *","r1b1kbnr/pppp2pp/2n2q2/4N3/3PpP2/8/PPP3PP/RNBQKB1R b KQkq f3"
"Sicilian: Smith-Morra gambit, Chicago defense *","r1b2rk1/pp2qppp/1bn2n2/4p3/1P6/P1NPP3/R4PPP/2BQKBNR b K -"
"Sicilian, Szen, hedgehog variation","r1bq1rk1/4bppp/ppnppn2/8/2P1P3/N1N5/PP2BPPP/R1BQ1RK1 w - -"
"QGD: Tarrasch, Prague variation, Normal position","r1bq1rk1/pp2bppp/2n2n2/2pp4/3P4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"King's Indian: Four pawns attack, main line","r1bq1rk1/pp2ppbp/2np1np1/8/2PNPP2/2N1B3/PP2B1PP/R2QK2R b KQ -"
"Sicilian: Scheveningen (Paulsen), classical variation *","r1bq1rk1/ppp1bppp/2n5/3np3/8/P2PPN2/1PQ2PPP/RNB1KB1R b KQ -"
"Giuoco Piano: Moller, bayonet attack *","r1bq2k1/pp3p1p/5n2/2b1r1p1/3p4/3P1B2/PPP1NPPP/R1BQK2R w KQ -"
"English: closed system *","r1bqk1nr/pp2ppbp/2np2p1/2p5/4P3/2NP2P1/PPP2PBP/R1BQK1NR b KQkq -"
"English: Botvinnik system","r1bqk1nr/ppp2pbp/2np2p1/4p3/2P1P3/2NP2P1/PP3PBP/R1BQK1NR b KQkq -"
"Evans gambit","r1bqk1nr/ppp2ppp/2np4/b3p3/2BPP3/2P2N2/P4PPP/RNBQK2R w KQkq -"
"King's Indian: fianchetto, Yugoslav system *","r1bqk2r/pp2ppbp/2n2np1/2pp4/2P5/3P1NP1/PP2PPBP/RNBQ1RK1 b kq -"
"QGD semi-Slav: Meran variation *","r1bqk2r/pp3ppp/2n1pn2/2bp4/1P6/2P1PN2/P2N1PPP/R1BQKB1R b KQkq -"
"French: Steinitz variation","r1bqkb1r/pp1n1ppp/2n1p3/2PpP3/5P2/2N5/PPP3PP/R1BQKBNR w KQkq -"
"QGD: Capablanca variation","r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/4PN2/PP1N1PPP/R2QKB1R b KQkq -"
"Benoni defense *","r1bqkb1r/pp2pppp/2n2n2/8/2Pp4/3P1NP1/PP3P1P/RNBQKB1R b KQkq -"
"English: symmetrical variation *","r1bqkb1r/pp2pppp/2n5/2pn4/8/2N1PN2/PP1P1PPP/R1BQKB1R b KQkq -"
"Sicilian: Boleslavsky variation, 7.Nb3","r1bqkb1r/pp3ppp/2np1n2/4p3/4P3/1NN5/PPP1BPPP/R1BQK2R b KQkq -"
"Sicilian: Taimanov (Bastrikov) variation *","r1bqkb1r/ppp2ppp/2n5/3np3/8/2N1P3/PPQP1PPP/R1B1KBNR b KQkq -"
"QGD: exchange, Samisch variation","r1bqkb1r/pppn1ppp/5n2/3p4/3P1B2/2N2N2/PP2PPPP/R2QKB1R b KQkq -"
"English: Mikenas-Carls, Sicilian variation *","r1bqkbnr/pp1p1ppp/2n5/2p1p3/2P5/4PN2/PP1P1PPP/RNBQKB1R b KQkq -"
"English: Bremen, reverse Dragon *","r1bqkbnr/pp1ppp1p/2n3p1/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq -"
"QGD: semi-Slav *","r1bqkbnr/pp2pppp/2n5/2pp4/3P4/2P1P3/PP3PPP/RNBQKBNR b KQkq -"
"Ponziani counter-gambit, Schmidt attack","r1bqkbnr/ppp3pp/2np4/3Ppp2/4P3/2P2N2/PP3PPP/RNBQKB1R b KQkq -"
"King's Indian: Samisch, Panno formation *","r2qkb1r/pp2n1pp/2n1bp2/2ppp3/8/P1NP1NP1/1PP1PPBP/R1BQ1RK1 b kq -"
"QGD: Neo-orthodox variation *","r2qkb1r/pp3ppp/2n1pn2/2pp4/3P2b1/4PN1P/PPP1BPP1/RNBQ1RK1 b kq -"
"French: classical, Anderssen variation *","r2qkbnr/ppp2ppp/2n5/3pp3/3P4/4Pb2/PPP1BPPP/RNBQK2R w KQkq -"
"Sicilian: Dragon, classical, Richter variation *","r4rk1/pppqbppp/2n1b3/3np3/8/2NP1NP1/PP2PPBP/R1BQ1RK1 w - -"
"Queen's Indian: Opocensky variation","rn1qk2r/pbppbppp/1p2p3/8/2PPn3/2N2NP1/PP1BPPBP/R2QK2R b KQkq -"
"Queen's Indian: Riumin variation *","rn1qk2r/pp1bppbp/5np1/2pp4/8/1P2PN2/PBPPBPPP/RN1QK2R b KQkq -"
"Evans gambit declined, Hicken variation *","rn2k2r/pbpp1ppp/8/2b1p3/Np2Q3/1B6/PPPP1qPP/R1BK2NR w kq -"
"KGA: bishop's gambit, classical defense","rnb1k2r/ppppnpbp/8/6p1/2BPPp1q/2N5/PPP3PP/R1BQ1KNR w kq -"
"KGA: bishop's gambit, Boren-Svenonius variation *","rnbq1knr/pppp2pp/8/4pP1Q/3b4/3B4/PPP2PPP/RNB1K1NR b KQ -"
"Ruy Lopez: exchange variation, Alapin gambit *","rnbq1rk1/pppp1pp1/5n1p/4p1B1/4P2P/P1P5/1PP2PP1/R2QKBNR b KQ -"
"Nimzo-Indian: Samisch variation","rnbq1rk1/pppp1ppp/4pn2/8/2PP4/P1P1P3/5PPP/R1BQKBNR b KQ -"
"Ruy Lopez: closed defense *","rnbq1rk1/pppp1ppp/5n2/b3p3/4P3/P1N2N2/1PPPBPPP/R1BQK2R b KQ -"
"Bishop's opening: Wing gambit","rnbqk1nr/pppp1ppp/8/2b1p3/1PB1P3/8/P1PP1PPP/RNBQK1NR b KQkq -"
"KGA: Schurig gambit *","rnbqk1nr/pppp2pp/3b4/4pP2/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Scotch gambit *","rnbqk2r/ppp2ppp/5n2/2bPp3/8/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"Ruy Lopez: old Steinitz defense *","rnbqk2r/pppp1ppp/5n2/4p3/1b2P3/2NP4/PPP2PPP/R1BQKBNR b KQkq -"
"Ruy Lopez: exchange variation *","rnbqk2r/pppp1ppp/5n2/4p3/4P3/P1b5/1PPP1PPP/R1BQKBNR w KQkq -"
"Ruy Lopez: Alapin's defense deferred *","rnbqk2r/pppp1ppp/5n2/bB2p3/4P3/P1N5/1PPP1PPP/R1BQK1NR b KQkq -"
"Blumenfeld counter-gambit *","rnbqkb1r/pp2pppp/5n2/2p5/1PPp4/4PN2/P2P1PPP/RNBQKB1R b KQkq -"
"Grunfeld: Stockholm variation","rnbqkb1r/ppp1pp1p/5np1/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR b KQkq -"
"Philidor: Paulsen attack *","rnbqkb1r/ppp2ppp/8/3n4/3p4/8/PPP2PPP/RNBQKBNR w KQkq -"
"English: Mikenas-Carls variation","rnbqkb1r/pppp1ppp/4pn2/8/2P1P3/2N5/PP1P1PPP/R1BQKBNR b KQkq -"
"Queen's pawn: Yusupov-Rubinstein system","rnbqkb1r/pppp1ppp/4pn2/8/3P4/4PN2/PPP2PPP/RNBQKB1R b KQkq -"
"Bird's opening: Lasker variation *","rnbqkb1r/pppp2pp/4pn2/5p2/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq -"
"King's Indian, 3.Nf3","rnbqkb1r/pppppp1p/5np1/8/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq -"
"English orang-utan","rnbqkb1r/pppppppp/5n2/8/1PP5/8/P2PPPPP/RNBQKBNR b KQkq -"
"Queen's pawn: London system","rnbqkb1r/pppppppp/5n2/8/3P1B2/8/PPP1PPPP/RN1QKBNR b KQkq -"
"Dutch defense *","rnbqkbnr/pp2pppp/8/2pp4/5P2/4P3/PPPP2PP/RNBQKBNR b KQkq -"
"Queen's pawn: English defense *","rnbqkbnr/ppp1pppp/8/3p4/8/1P6/P1PPPPPP/RNBQKBNR b KQkq -"
"Reti accepted","rnbqkbnr/ppp1pppp/8/8/2p5/5N2/PP1PPPPP/RNBQKB1R w KQkq -"
"Philidor's defense","rnbqkbnr/ppp2ppp/3p4/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq -"
"English opening: Agincourt variation","rnbqkbnr/ppp2ppp/4p3/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R b KQkq -"
"Scandinavian defense *","rnbqkbnr/ppp2ppp/8/3p4/3p4/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"French: Steinitz attack","rnbqkbnr/pppp1ppp/4p3/4P3/8/8/PPPP1PPP/RNBQKBNR b KQkq -"
"French: King's Indian attack","rnbqkbnr/pppp1ppp/4p3/8/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq -"
"English, Nimzovich variation","rnbqkbnr/pppp1ppp/8/4p3/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq -"
"Sicilian defense *","rnbqkbnr/pppp1ppp/8/4p3/2P5/8/PP1PPPPP/RNBQKBNR b KQkq -"
"Polish (Sokolsky) opening","rnbqkbnr/pppppppp/8/8/1P6/8/P1PPPPPP/RNBQKBNR b KQkq b3"
"English opening","rnbqk1nr/ppppppbp/6p1/8/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq -"
"English: Romanishin gambit","rnbqkb1r/2pp1ppp/p3pn2/1p6/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq b6"
"Danish gambit: Schlechter defence","rnbqkbnr/ppp2ppp/8/3p4/2B1P3/8/PB3PPP/RN1QK1NR w KQkq d6"
"Bishop's opening: Lopez gambit","r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1PP2/2P5/PP1PQ1PP/RNB1K1NR b KQkq f3"
"Robatsch defence: three pawns attack","rnbqk1nr/ppppppbp/6p1/8/3PPP2/8/PPP3PP/RNBQKBNR b KQkq f3"
"Pirc-Robatsch","rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/3B1N2/PPP2PPP/RNBQK2R b KQkq -"
"Tayler opening","r1bqkb1r/pppp1ppp/2n2n2/4p3/3PP3/5N2/PPP1BPPP/RNBQK2R b KQkq d3"
"Caro-Kann: classical (6.h4)","rn1qkbnr/pp2pppp/2p3b1/8/3P3P/6N1/PPP2PP1/R1BQKBNR b KQkq h3"
"Sicilian: Alapin's variation (3.c3)","r1bqkbnr/pp1ppppp/2n5/2p5/4P3/2P2N2/PP1P1PPP/RNBQKB1R b KQkq -"
"Three knights: Winawer defence (Gothic defence)","r1bqkbnr/pppp2pp/2n5/4pp2/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq f6"
"Sicilian defence","r1bqkbnr/pp1ppppp/2n5/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq d3"
"Sicilian: Scheveningen (6.f4)","rnbqkb1r/pp3ppp/3ppn2/8/3NPP2/2N5/PPP3PP/R1BQKB1R b KQkq f3"
"Ruy Lopez: closed centre (6.d3)","r1bqk2r/1pppbppp/p1n2n2/4p3/B3P3/3P1N2/PPP2PPP/RNBQ1RK1 b kq -"
"Catalan: closed, modern line (Bb4+)","r2q1rk1/pb1nbppp/1pp1pn2/3p4/2PP1B2/5NP1/PPQNPPBP/R4RK1 w - -"
"QGD: Orthodox defense, classical, 13.d1b1 (Maroczy)","r1b2rk1/pp1nqppp/2p5/4p3/2BP4/2R1PN2/PP3PPP/1Q3RK1 b - -"
"Two Knights defense: Fegatello attack, Leonhardt variation","r1bq1b1r/ppn3pp/2p1k3/3np3/2BPQ3/P1N5/1PP2PPP/R1B1K2R w KQ -"
"Ruy Lopez: closed, Pilnik variation","r1bq1rk1/2p1bppp/p1np1n2/1p2p3/4P3/1BPP1N2/PP3PPP/RNBQR1K1 b - -"
"Ruy Lopez: closed, Suetin variation","r1bq1rk1/2p1bppp/p1np1n2/1p2p3/4P3/PBP2N2/1P1P1PPP/RNBQR1K1 b - -"
"Catalan: closed, Botvinnik variation","r1bq1rk1/pp1nbppp/2p1pn2/3p4/2PP4/2NQ1NP1/PP2PPBP/R1B2RK1 b - -"
"Dutch: Ilyin-Genevsky variation *","r1bq1rk1/pp2ppbp/2n2np1/2pp4/5P2/3PPN2/PPP1B1PP/RNB1QRK1 b - -"
"King's Indian: orthodox, Aronin-Taimanov, 9.Ne1","r1bq1rk1/ppp1npbp/3p1np1/3Pp3/2P1P3/2N5/PP2BPPP/R1BQNRK1 b - -"
"Evans gambit: Sokolsky variation","r1bqk1nr/ppp2ppp/2np4/b3p1B1/2BPP3/2P2N2/P4PPP/RN1QK2R b KQkq -"
"English: closed, Taimanov variation","r1bqk2r/ppp2pbp/2np2pn/4p3/2P5/2N1P1P1/PP1PNPBP/R1BQK2R w KQkq -"
"Sicilian: Scheveningen, Vitolins variation *","r1bqk2r/ppp2ppp/2n5/3np3/1b6/3PPN2/PP3PPP/RNBQKB1R w KQkq -"
"Giuoco Piano: Bernstein variation","r1bqk2r/ppp2ppp/2n5/3p4/2BP4/1Qb2N2/P4PPP/R1B2RK1 w kq -"
"Four Knights: double Ruy Lopez","r1bqk2r/pppp1ppp/2n2n2/1B2p3/1b2P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq -"
"Four Knights: Spanish, classical defense","r1bqk2r/pppp1ppp/2n2n2/1Bb1p3/4P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq -"
"Ruy Lopez: Steinitz defense deferred (Russian defense)","r1bqkb1r/1pp2ppp/p1np1n2/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 w kq -"
"French: Tarrasch, Leningrad variation","r1bqkb1r/pp3ppp/1nn1p3/3pP3/3P4/3B4/PP1NNPPP/R1BQK2R w KQkq -"
"English: Bradley Beach variation","r1bqkb1r/pppp1ppp/2n2n2/8/2PPp3/2N2N2/PP2PPPP/R1BQKB1R w KQkq -"
"Ruy Lopez: Cozio defense, Paulsen variation","r1bqkb1r/ppppnp1p/2n3p1/1B2p3/4P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq -"
"English: symmetrical variation *","r1bqkbnr/pp1ppp1p/2n3p1/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -"
"Grunfeld: Spike gambit *","r1bqkbnr/pp2pp1p/2n5/2pp2p1/3P4/5NP1/PPP1PP1P/RNBQKB1R w KQkq -"
"Caro-Kann: Panov-Botvinnik attack *","r1bqkbnr/pp3ppp/2n5/2pp4/3P4/5N2/PP2PPPP/RNBQKB1R w KQkq -"
"Vienna gambit *","r1bqkbnr/pppp2pp/2n5/4pp2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Lemming defense","r1bqkbnr/pppppppp/n7/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"French: classical, Tarrasch variation *","r2qk1nr/ppp2ppp/2nb4/3p4/3Pp3/4P3/PPPNQPPP/RNB1K2R w KQkq -"
"French: Winawer, Kondratiyev variation *","r2qk1nr/pppb1ppp/2nb4/1B1p4/2PQ4/4P3/PP3PPP/RNB1K1NR w KQkq -"
"QGD: Capablanca variation *","r2qkb1r/pp1n1ppp/4pn2/2pp4/3P2b1/2P1PN2/PP1N1PPP/R1BQKB1R w KQkq -"
"Evans gambit: Paulsen variation *","rn1q1rk1/pb3ppp/5n2/2b1p3/N2p4/1B1P4/PPP1NPPP/R1BQK2R b KQ -"
"Giuoco piano *","rn1q1rk1/ppp2ppp/8/2bNp3/4P1b1/3P1N2/PPP2PPP/R1BQK2R b KQ -"
"QGA: classical, 8...Bb7","rn1qkb1r/1b3ppp/p3pn2/1pp5/3P4/1B2PN2/PP2QPPP/RNB2RK1 w kq -"
"Queen's Indian: Burger variation","rn1qkb1r/pb1p1ppp/1p3n2/2pp2N1/2P5/6P1/PP2PPBP/RNBQK2R b KQkq -"
"Philidor: Boden variation","rn1qkbnr/pppb1ppp/3p4/8/3QP3/5N2/PPP2PPP/RNB1KB1R w KQkq -"
"Ruy Lopez: Wormald (Alapin) attack *","rnb1k2r/ppppqppp/5n2/b3p3/4P3/P1N2N2/1PPP1PPP/R1BQKB1R w KQkq -"
"Ruy Lopez: Berlin defense, Zukertort variation *","rnb2rk1/pp2qppp/5n2/2p5/4p3/2P5/PNPPBPPP/R1BQK2R w KQ -"
"King's Indian: Petrosian system, Stein variation","rnbq1rk1/1pp2pbp/3p1np1/p2Pp3/2P1P3/2N2N2/PP2BPPP/R1BQK2R w KQ -"
"Ruy Lopez: classical defense, Zaitsev variation *","rnbq1rk1/p1pp1ppp/5n2/1p1Np3/1bB1P3/8/PPPP1PPP/R1BQK1NR w KQ -"
"Evans gambit: Lasker defense *","rnbq1rk1/p4ppp/2p2n2/2bpp3/4P3/1BNP4/PPP2PPP/R1BQK1NR b KQ -"
"Ruy Lopez: open, 9.c3 *","rnbq1rk1/pp3ppp/1bp2n2/4N3/1P1Pp3/P1N1B3/2P2PPP/R2QKB1R w KQ -"
"QGD: Neo-orthodox variation","rnbq1rk1/ppp1bpp1/4pn1p/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R w KQ -"
"Ruy Lopez: Berlin defense, Minckwitz variation *","rnbq1rk1/ppp2ppp/5n2/4N3/1b2p3/2N5/PPPPBPPP/R1BQK2R w KQ -"
"Ruy Lopez: modern Steinitz defense, 5.O-O *","rnbq1rk1/pppp1ppp/5n2/b3p3/4P3/P1NP4/1PP2PPP/R1BQKBNR w KQ -"
"Ruy Lopez: open, Tarrasch trap *","rnbq2k1/pp3ppp/1bp5/4r3/1P1Pp3/P1N1P3/2PQB1PP/R4RK1 w - -"
"Ruy Lopez: Marshall, Kevitz variation *","rnbq2k1/pp3ppp/2p1r3/3p4/1P1P4/P2B4/5PPP/R1BQ1RK1 w - -"
"Bishop's opening: Philidor variation *","rnbqk1nr/pp1p1ppp/2p5/2b1p3/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq -"
"Alekhine's defense: Kmoch variation *","rnbqk1nr/ppp2ppp/1b1p4/8/2P1p3/1N6/PP1PPPPP/RNBQKB1R w KQkq -"
"Vienna gambit: Breyer variation","rnbqk2r/ppp1bppp/8/3pP3/4n3/2N2N2/PPPP2PP/R1BQKB1R w KQkq -"
"English: Bremen, Smyslov system","rnbqk2r/pppp1ppp/5n2/4p3/1bP5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq -"
"Sicilian: Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack *","rnbqk2r/pppp1ppp/5n2/4p3/1bP5/3P4/PP2PPPP/RNBQKBNR w KQkq -"
"Sicilian: Scheveningen (Paulsen), classical variation","rnbqkb1r/1p3ppp/p2ppn2/8/3NP3/2N5/PPP1BPPP/R1BQK2R w KQkq -"
"Sicilian: Dragon variation","rnbqkb1r/pp2pp1p/3p1np1/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq -"
"Alekhine's defense: modern, Panov variation *","rnbqkb1r/ppp2pp1/5n1p/3p2B1/3Np3/3P4/PPP1PPPP/RN1QKB1R w KQkq -"
"Philidor: exchange variation","rnbqkb1r/ppp2ppp/3p1n2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq -"
"KGA: Abbazia defense, modern variation","rnbqkb1r/ppp2ppp/5n2/3P4/5p2/5N2/PPPP2PP/RNBQKB1R w KQkq -"
"Alekhine's defense: modern variation *","rnbqkb1r/ppp2ppp/5n2/3p4/3Np3/3P4/PPP1PPPP/RNBQKB1R w KQkq -"
"English: Bremen system with ...g6","rnbqkb1r/pppp1p1p/5np1/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq -"
"Sicilian defense *","rnbqkb1r/pppp1ppp/5n2/4p3/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"KGA: Kieseritsky, Berlin defense *","rnbqkb1r/pppp2p1/8/4pPPp/4n3/5N2/PPPP1P1P/RNBQKB1R b KQkq -"
"English, 1...Nf6 (Anglo-Indian defense)","rnbqkb1r/pppppppp/5n2/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"Ware (Meadow Hay) opening *","rnbqkbnr/1ppppppp/8/p7/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Scandinavian: Icelandic gambit *","rnbqkbnr/pp1p1ppp/8/2p5/3p4/4PN2/PPP2PPP/RNBQKB1R b KQkq -"
"Dutch defense *","rnbqkbnr/pp2pppp/8/2pp4/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -"
"Alekhine's defense: Maroczy variation *","rnbqkbnr/ppp2ppp/3p4/4p3/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"QGD: Albin counter-gambit","rnbqkbnr/ppp2ppp/8/4P3/2Pp4/5N2/PP2PPPP/RNBQKB1R b KQkq -"
"KGA: Tumbleweed gambit","rnbqkbnr/pppp1ppp/8/8/4Pp2/8/PPPP1KPP/RNBQ1BNR b kq -"
"English: Anglo-Dutch defense","rnbqkbnr/ppppp1pp/8/5p2/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"KGA: Villemson (Steinitz) gambit","rnbqkbnr/pppp1ppp/8/8/3PPp2/8/PPP3PP/RNBQKBNR b KQkq d3"
"KGA: Rosentreter gambit","rnbqkbnr/pppp1p1p/8/6p1/3PPp2/5N2/PPP3PP/RNBQKB1R b KQkq d3"
"KGA: Ghulam Kassim gambit","rnbqkbnr/pppp1p1p/8/8/2BPPpp1/5N2/PPP3PP/RNBQK2R b KQkq d3"
"Petrov: classical attack, Jaenisch variation","r1bqk2r/ppp1bppp/2n5/3p4/2PPn3/3B1N2/PP3PPP/RNBQ1RK1 b kq c3"
"Caro-Kann: Steinitz variation","r1bqkb1r/pp3ppp/1np1pn2/6N1/2BP4/8/PPP1QPPP/R1B1K1NR w KQkq -"
"Ruy Lopez: closed, Balla variation","r1b1k2r/2q1bppp/p2p1n2/npp1p3/P2PP3/2P2N2/1PB2PPP/RNBQR1K1 b kq a3"
"Blackmar-Diemer: Lemberg counter-gambit","rnbqkb1r/ppp2ppp/5n2/3pp3/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq e6"
"Sicilian: Najdorf, 7...Be7 main line *","2kr1b1r/ppp3pp/2n2q2/3npp2/6b1/P2PPN2/1PQNBPPP/R1B1K2R b KQ -"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 defense, 9...Be7 *","2kr1b1r/pppq2pp/2n5/3npp2/6b1/P1NPPN2/1P1BBPPP/R2QK2R b KQ -"
"Alekhine's defense: four pawns attack, Tartakower variation","2kr3r/pppqbppp/1nn1p3/4Pb2/2PP4/2N1BN2/PP2B1PP/R2Q1RK1 w - -"
"Sicilian: Dragon, classical, Grigoriev variation *","2kr3r/pppqbppp/2n1b3/3np3/8/2NP1NP1/PP2PPBP/R1BQ1RK1 w - -"
"Scotch: Blumenfeld attack","r1b1k1nr/pppp1ppp/2n2q2/1Nb5/4P3/4B3/PPP2PPP/RN1QKB1R b KQkq -"
"Sicilian: Scheveningen, classical, Maroczy system","r1b1k2r/1pq1bppp/p1nppn2/8/P2NPP2/2N5/1PP1B1PP/R1BQ1R1K b kq -"
"Scotch: Blackburne attack","r1b1k2r/ppppnppp/2n2q2/2b5/3NP3/2P1B3/PP1Q1PPP/RN2KB1R b KQkq -"
"French: advance, Milner-Barry gambit","r1b1kbnr/pp3ppp/1qn1p3/2ppP3/3P4/2PB1N2/PP3PPP/RNBQK2R b KQkq -"
"Scotch: Horwitz attack","r1b1kbnr/pppp1ppp/2n5/1N6/4P2q/8/PPP2PPP/RNBQKB1R b KQkq -"
"Benko gambit: Ne2 variation *","r1bq1k1r/pp2nppp/2n5/4p3/2Pp4/3P1NP1/4PP1P/RN1QKB1R w KQ -"
"English: closed system (without ...d6)","r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2NP2P1/PP2PPBP/R1BQK1NR b KQkq -"
"Nimzo-Indian: e3, Hubner variation *","r1bqk2r/p4ppp/2pbpn2/2pp4/2P5/2NPPN2/PP3PPP/R1BQK2R b KQkq -"
"Philidor: Nimzovich, Larobok variation *","r1bqk2r/ppp2ppp/2n5/3pp3/4P1n1/3P1N2/PPPNBbPP/R1BQ1RK1 w kq -"
"Giuoco Piano","r1bqk2r/pppp1ppp/2n2n2/2b5/2BPP3/5N2/PP3PPP/RNBQK2R b KQkq -"
"Giuoco Piano: Cracow variation","r1bqk2r/pppp1ppp/2n2n2/8/1bBPP3/5N2/PP3PPP/RNBQ1K1R b kq -"
"Ruy Lopez: 5.O-O","r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 b kq -"
"Sicilian: Magnus Smith trap","r1bqkb1r/p3pp1p/2pp1np1/4P3/2B5/2N5/PPP2PPP/R1BQK2R b KQkq -"
"QGD: Spielmann variation *","r1bqkb1r/pp1n1ppp/4pn2/2pp4/3P4/2P1PNP1/PP3P1P/RNBQKB1R b KQkq -"
"QGD: Tarrasch, Folkestone (Swedish) variation *","r1bqkb1r/pp2pp1p/2n2np1/2Pp4/3P4/2N5/PP3PPP/R1BQKBNR b KQkq -"
"Caro-Kann: exchange, Rubinstein variation","r1bqkb1r/pp2pppp/2n2n2/3p4/3P1B2/2PB4/PP3PPP/RN1QK1NR b KQkq -"
"Benoni: four pawns attack *","r1bqkb1r/pp4pp/2n2n2/4pp2/2Pp4/3P1NP1/PP3PBP/RNBQ1RK1 b kq -"
"Vienna: Hamppe-Allgaier gambit *","r1bqkb1r/pppp2p1/2n5/4pPPp/6n1/2N5/PPPP1P1P/R1BQKBNR w KQkq -"
"Scotch: Ghulam Kassim variation","r1bqkbnr/ppp2ppp/3p4/8/3QP3/3B4/PPP2PPP/RNB1K2R b KQkq -"
"KGA: bishop's gambit, Maurian defense","r1bqkbnr/pppp1ppp/2n5/8/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq -"
"KP: Nimzovich defense","r1bqkbnr/pppppppp/2n5/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq -"
"Four Knights: symmetrical, Tarrasch variation","r2q1rk1/ppp2ppp/2npbn2/1B2p1B1/1b2P3/2NP1N2/PPP2PPP/R2Q1RK1 w - -"
"Caro-Kann: Panov-Botvinnik, Czerniak variation *","r2qkbnr/pp3ppp/2n5/2pp4/Q2P2b1/2N2N2/PP2PPPP/R1B1KB1R b KQkq -"
"Sicilian: Dragon, Yugoslav attack, Byrne variation *","r3k2r/pppq2pp/2n1bp2/2bnp3/P7/2NP1NP1/1P2PPBP/R1BQ1RK1 b kq -"
"Petrov: classical attack, Marshall trap","rn1q1rk1/ppp3pp/8/3P1p2/3Pn1b1/3B1N2/PP3PPb/RNBQR1K1 w - -"
"Sicilian: Canal-Sokolsky attack, Sokolsky variation","rn2kbnr/pp1qpppp/3p4/2p5/2P1P3/5N2/PP1P1PPP/RNBQK2R b KQkq -"
"Ponziani: Steinitz variation *","rnb1kb1r/pp1p1ppp/2p2n2/q3p3/3PP3/2N2P2/PPP3PP/R1BQKBNR b KQkq -"
"Petrov: modern attack, Bardeleben variation *","rnb1kb1r/ppp1qppp/8/3n4/2N1p3/2N5/PPPP1PPP/R1BQKB1R b KQkq -"
"KGD: Falkbeer, Reti variation *","rnb1kbnr/ppp1q1pp/3p4/4Pp2/3p4/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"KGA: Breyer gambit *","rnb1kbnr/pppp2pp/5q2/4pP2/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"King's Indian: Samisch, orthodox, Bronstein variation","rnb2rk1/ppp2pbp/3p2p1/3Pp3/2n1P2Q/2N2P2/PP2K2P/R5NR w - -"
"Ruy Lopez: open, Tartakower variation *","rnb2rk1/ppppqppp/5n2/b3N3/4P3/P1N5/1PPP1PPP/R1BQKB1R w KQ -"
"Bishop's opening: Classical variation *","rnbqk1nr/pppp1ppp/8/2b1p3/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq -"
"Bishop's opening: Lewis gambit","rnbqk1nr/pppp1ppp/8/2b1p3/2BPP3/8/PPP2PPP/RNBQK1NR b KQkq -"
"Sicilian *","rnbqkb1r/pppp1ppp/5n2/4p3/2P5/3P4/PP2PPPP/RNBQKBNR b KQkq -"
"French: Winawer, advance, Smyslov variation","rnbqk2r/pp2nppp/4p3/2ppP3/P2P4/2P5/2P2PPP/R1BQKBNR b KQkq -"
"King's Indian with e4 & g3","rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N3P1/PP3P1P/R1BQKBNR b KQkq -"
"Giuoco Pianissimo *","rnbqk2r/ppp2ppp/3p1n2/2b1p3/2B1P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"QGD: Ragozin, Vienna variation","rnbqk2r/ppp2ppp/4pn2/6B1/1bpP4/2N2N2/PP2PPPP/R2QKB1R w KQkq -"
"Ruy Lopez: Pollock defense *","rnbqk2r/pppp1ppp/5n2/4p3/Nb2P3/8/PPPP1PPP/R1BQKBNR b KQkq -"
"Ruy Lopez: Bird's defense deferred *","rnbqk2r/pppp1ppp/5n2/b2Np3/4P3/P7/1PPP1PPP/R1BQKBNR b KQkq -"
"Ruy Lopez: modern Steinitz defense *","rnbqk2r/pppp1ppp/5n2/b3p3/4P3/P1NP4/1PP2PPP/R1BQKBNR b KQkq -"
"QGD Slav: exchange variation *","rnbqkb1r/pp2pppp/5n2/3p4/3P4/5N2/PP2PPPP/RNBQKB1R b KQkq -"
"English: symmetrical variation *","rnbqkb1r/pp2pppp/8/2pn4/8/4PN2/PP1P1PPP/RNBQKB1R b KQkq -"
"Sicilian: Tartakower variation *","rnbqkb1r/pp3ppp/2p2n2/3Pp3/8/3P4/PP2PPPP/RNBQKBNR w KQkq -"
"Alekhine's defense: modern, Larsen variation","rnbqkb1r/ppp1pppp/8/3np3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"KGA: Kieseritsky, Brentano defense","rnbqkb1r/ppp2p1p/5n2/3pN3/3PPBpP/8/PPP3P1/RN1QKB1R b KQkq -"
"French: Swiss variation","rnbqkb1r/ppp2ppp/4pn2/3p4/3PP3/2NB4/PPP2PPP/R1BQK1NR b KQkq -"
"Scotch: Schmidt variation *","rnbqkb1r/ppp2ppp/8/3np3/8/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"Philidor: Larsen variation *","rnbqkb1r/ppp2ppp/8/3np3/8/3P2P1/PPP2P1P/RNBQKBNR b KQkq -"
"KGA: Allgaier gambit *","rnbqkb1r/pppp2p1/8/4pPPp/6n1/8/PPPP1P1P/RNBQKBNR w KQkq -"
"King's knight's gambit *","rnbqkb1r/pppp2pp/5n2/4pP2/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Sicilian","rnbqkbnr/pp2pppp/3p4/8/3NP3/8/PPP2PPP/RNBQKB1R b KQkq -"
"Queen's Indian accelerated *","rnbqkbnr/pp2pppp/8/2pp4/8/1P3N2/P1PPPPPP/RNBQKB1R b KQkq -"
"KP: Neo-Mongoloid defense *","rnbqkbnr/ppp2ppp/8/3pp3/8/2N2P2/PPPPP1PP/R1BQKBNR b KQkq -"
"Philidor: Philidor counter-gambit, Zukertort variation","rnbqkbnr/ppp3pp/3p4/4pp2/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq -"
"King's gambit","rnbqkbnr/pppp1ppp/8/4p3/4PP2/8/PPPP2PP/RNBQKBNR b KQkq -"
"Ruy Lopez: closed, Pilnik variation *","rnbqr1k1/pp3ppp/1bpp1n2/4p3/1P2P3/P1NP1N2/2P1BPPP/R1BQ1RK1 w - -"
"Benko's opening","rnbqkb1r/ppp1pppp/5n2/3p4/8/5NP1/PPPPPPBP/RNBQK2R b KQkq -"
"Old Benoni: Mujannah formation","rnbqkbnr/pp1pp1pp/8/2pP1p2/8/8/PPP1PPPP/RNBQKBNR w KQkq f6"
"Robatsch defence (4.Be2)","rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/5N2/PPP1BPPP/RNBQK2R b KQkq -"
"QGD Slav: 5.e3 (Alekhine variation)","rnbqkb1r/p3pppp/2p2n2/8/PppP4/2N1PN2/1P3PPP/R1BQKB1R w KQkq -"
"Catalan: closed","rnbq1rk1/pp2bppp/4p3/3n4/3N4/6P1/PP2PPBP/RNBQ1RK1 w - -"
"King's Indian: orthodox (7...Nbd7)","r1bqnrk1/pp1n1pbp/3p2p1/2pPp3/2P1P3/2N1B3/PP2BPPP/R2QNRK1 w - -"
"Two Knights defense: Colman variation","1rbqkb1r/p4ppp/2p2n2/nB2p1N1/8/5Q2/PPPP1PPP/RNB1K2R w KQk -"
"Sicilian: Richter-Rauzer, Rauzer attack, Geller variation *","2kr1b1r/pppq2pp/2n5/3npp2/4P1b1/2NP1N2/PP2BPPP/R1BQ1RK1 b - -"
"Giuoco Piano: close variation","r1b1k1nr/ppppqppp/2n5/2b1p3/2B1P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq -"
"Two Knights defense: Paoli variation","r1b1kb1r/p1q2ppp/2p2n2/n3p1N1/8/3B1Q2/PPPP1PPP/RNB1K2R b KQkq -"
"Ruy Lopez: closed, Chigorin, 12...c5d4","r1b2rk1/2q1bppp/p2p1n2/np2p3/3PP3/5N1P/PPBN1PP1/R1BQR1K1 b - -"
"KGA: Lopez-Gianutio counter-gambit, Hein variation *","r1bk2nr/ppppq1pp/2n5/2b1PP1Q/8/8/PPPP2PP/RNBK1BNR b - -"
"QGD: Petrosian variation","r1bq1rk1/pp1n1pp1/2p1pb1p/8/2BP4/2N1PN2/PP3PPP/2RQ1RK1 b - -"
"Ruy Lopez: open, St. Petersburg variation *","r1bq1rk1/pp1n1ppp/1bp2n2/4N3/1PBPp3/P1N1B3/2P2PPP/R2QK2R w KQ -"
"Benoni: classical with ...Re8 and ...Na6 *","r1bq1rk1/pp1nbppp/2n5/4p3/2Pp4/N2P1NP1/PP3PBP/R1BQR1K1 b - -"
"King's Indian: fianchetto, classical variation *","r1bq1rk1/pp2ppbp/2n2np1/2pp4/4P3/3P1NP1/PPPN1PBP/R1BQ1RK1 b - -"
"Grunfeld: Flohr defense *","r1bq1rk1/pp3ppp/2nbpn2/2pp4/3P1B2/2P2NP1/PP2PPBP/RN1Q1RK1 b - -"
"Nimzo-Indian: 4.e3, Ragozin variation","r1bq1rk1/ppp2ppp/2n1pn2/8/1bpP4/2NBPN2/PP3PPP/R1BQ1RK1 w - -"
"Philidor: Nimzovich, Larobok variation","r1bq1rk1/pppnbBpp/3p1n2/4p1N1/3PP3/2N5/PPP2PPP/R1BQK2R b KQ -"
"Scotch gambit: Hanneken variation","r1bq1rk1/pppp1ppp/5n2/4n1N1/1bB5/8/PB3PPP/RN1Q1RK1 w - -"
"Nimzo-Indian: 4.e3, Botvinnik system *","r1bqk1nr/5ppp/p1pbp3/2pp4/3P4/4PN2/PPP2PPP/RNBQ1RK1 w kq -"
"English: symmetrical, Botvinnik system reversed","r1bqk1nr/pp1p1pbp/2n3p1/2p1p3/2P5/2N2NP1/PP1PPPBP/R1BQK2R w KQkq -"
"English: ultra-symmetrical variation","r1bqk1nr/pp1pppbp/2n3p1/2p5/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq -"
"Sicilian: closed","r1bqk1nr/pp2ppbp/2np2p1/2p5/4P3/2NP2P1/PPP2PBP/R1BQK1NR w KQkq -"
"Evans counter-gambit","r1bqk1nr/ppp2ppp/2n5/2bpp3/1PB1P3/5N2/P1PP1PPP/RNBQK2R w KQkq -"
"Ruy Lopez: Alapin's defense","r1bqk1nr/pppp1ppp/2n5/1B2p3/1b2P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Ponziani: Romanishin variation","r1bqk1nr/ppppbppp/2n5/4p3/4P3/2P2N2/PP1P1PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: closed defense","r1bqk2r/1pppbppp/p1n2n2/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 w kq -"
"Pirc: classical system, 5.Be2 *","r1bqk2r/ppp1bppp/2n2n2/3pp3/8/3P1NP1/PPP1PPBP/RNBQK2R w KQkq -"
"Giuoco Piano: Anderssen variation","r1bqk2r/ppp2ppp/2n5/1B1pP3/1b1Pn3/5N2/PP3PPP/RNBQK2R w KQkq -"
"Giuoco Piano","r1bqk2r/pppp1ppp/2n5/8/2BPn3/2b2N2/PP3PPP/R1BQ1RK1 w kq -"
"QGD semi-Slav: Meran, Rabinovich variation","r1bqkb1r/3n1ppp/p3p3/1N2P3/3p2n1/3B1N2/PP3PPP/R1BQK2R w KQkq -"
"Queen's pawn game, Zukertort variation *","r1bqkb1r/p1pn1ppp/1p2pn2/3p4/2PP4/4PN2/PP3PPP/RNBQKB1R w KQkq -"
"English: symmetrical variation","r1bqkb1r/pp1p1ppp/2n1pn2/8/2PN4/2N5/PP2PPPP/R1BQKB1R w KQkq -"
"QGD: semi-Slav, Noteboom variation *","r1bqkb1r/pp2pppp/2n2n2/2Pp4/8/2P1P3/PP3PPP/RNBQKBNR b KQkq -"
"QGD: 4.Nf3 *","r1bqkb1r/pp2pppp/2n2n2/2pp4/3P4/4PN2/PPP2PPP/RNBQKB1R w KQkq -"
"Scotch: Goring gambit *","r1bqkb1r/pp3ppp/2n2n2/1B2p3/8/2N5/PPPP1PPP/R1BQK1NR b KQkq -"
"Scandinavian defense, Grunfeld variation *","r1bqkb1r/ppp2p1p/2n5/3p2p1/Q3nB2/2P2N2/PP2PPPP/RN2KB1R w KQkq -"
"Sicilian: Taimanov variation *","r1bqkb1r/ppp2ppp/2n5/3np3/8/2N1P3/PP1P1PPP/R1BQKBNR w KQkq -"
"Philidor: Nimzovich, Sokolsky variation *","r1bqkb1r/pppn1ppp/5n2/4N3/4p3/3P4/PPP2PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: Bird's defense, Paulsen variation","r1bqkb1r/ppppnppp/8/1B6/3pP3/8/PPPP1PPP/RNBQ1RK1 w kq -"
"Ruy Lopez: modern Steinitz defense, siesta variation","r1bqkbnr/1pp3pp/p1np4/4pp2/B3P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq -"
"Ruy Lopez: exchange variation","r1bqkbnr/1ppp1ppp/p1B5/4p3/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq -"
"Ruy Lopez: Bird's defense deferred","r1bqkbnr/1ppp1ppp/p7/4p3/B2nP3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Ruy Lopez: modern Steinitz defense, exchange variation","r1bqkbnr/2p2ppp/p1pp4/4p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"English: Carls' Bremen system *","r1bqkbnr/pp1ppp1p/2n3p1/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"English: symmetrical variation *","r1bqkbnr/pp1ppppp/2n5/2p5/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"Sicilian: Gloria variation","r1bqkbnr/pp2ppp1/2np4/2p4p/2P1P3/2N3P1/PP1P1P1P/R1BQKBNR w KQkq -"
"Blackmar-Diemer gambit *","r1bqkbnr/ppp2ppp/2n5/3pp3/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"Pirc: Austrian attack *","r1bqkbnr/ppp3pp/2n5/3ppp2/8/3P1NP1/PPP1PP1P/RNBQKB1R w KQkq -"
"Valencia opening *","r1bqkbnr/pppnpppp/3p4/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Three Knights: Steinitz, Rosenthal variation","r1bqkbnr/pppp1p1p/2n3p1/3N4/3pP3/5N2/PPP2PPP/R1BQKB1R b KQkq -"
"Vienna game *","r1bqkbnr/pppp1ppp/2n5/4p3/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"KGD: Falkbeer, Milner-Barry variation *","r1bqkbnr/pppp2pp/2n5/4pp2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -"
"Durkin's attack *","r1bqkbnr/pppppppp/n7/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Ruy Lopez: Kecskemet variation *","r1bqr1k1/pp1n1ppp/2p2n2/b2pp3/4P3/P1NP1N2/1PP1BPPP/R2QBRK1 b - -"
"Benoni: classical, 11.f3","r1bqr1k1/pp3pbp/n2p1np1/2pP4/4P3/2N2P2/PP1NB1PP/R1BQ1RK1 b - -"
"Ruy Lopez: Steinitz defense deferred, Boleslavsky variation *","r1bqr1k1/ppp2ppp/2n2n2/4N3/3PpP2/P1P5/2P3PP/R1BQKB1R w KQ -"
"Two Knights: Max Lange attack, Rubinstein variation *","r1bqr1k1/ppp2ppp/8/2PPn3/5Qn1/2N1Bp2/PPP2PPP/R3KB1R b KQ -"
"Evans gambit: Fraser-Mortimer attack","r2q1knr/pppb1Bpp/1b1p4/n7/3PP3/2N2N2/P1Q2PPP/R1B2RK1 b - -"
"Alekhine's defense: exchange, Karpov variation","r2q1rk1/pp2ppbp/1nnp2p1/5b2/2PP1B2/2N2N1P/PP2BPP1/R2Q1RK1 b - -"
"English: symmetrical, hedgehog, flexible formation","r2qk2r/1b1nbppp/pp1ppn2/8/2PQ4/1PN2NP1/P3PPBP/R1BR2K1 w kq -"
"Grunfeld: Opocensky variation *","r2qkb1r/pp1b1ppp/2n1pn2/2pp4/3P4/5NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"QGD: Semi-Tarrasch, Primitive Pillsbury variation *","r3kb1r/pp2pppp/2n2n2/2pq4/3P2b1/4PN2/PP3PPP/RNBQKB1R w KQkq -"
"Nimzo-Indian: Spielmann, Stahlberg variation *","r3kb1r/ppqbpp1p/2n2np1/1Bp5/2N2P2/2N1P3/PP1P2PP/R1BQK2R w KQkq -"
"French: classical, Pollock variation *","r3kbnr/ppp2ppp/2n5/3p2q1/3Pp3/4P3/PPPNQPPP/RNB1K2R w KQkq -"
"Queen's Indian: Averbakh variation","rn1q1rk1/pb1pbppp/1p2pn2/8/2PN4/1P1BP3/PB3PPP/RN1Q1RK1 b - -"
"Grunfeld: Russian, Smyslov variation","rn1q1rk1/ppp1ppbp/5np1/8/2QPP1b1/2N2N2/PP3PPP/R1B1KB1R w KQ -"
"Queen's Indian: Yates variation","rn1qk2r/1bpp1ppp/1p2pn2/p7/1bPP4/5NP1/PP1BPPBP/RN1QK2R w KQkq -"
"Queen's Indian: Capablanca variation","rn1qk2r/pbpp1ppp/1p2pn2/8/1bPP4/5NP1/PP2PPBP/RNBQK2R w KQkq -"
"Scotch: Paulsen attack *","rn1qk2r/pp3ppp/2p1b3/3np3/1bB5/2N2Q2/PPPPNPPP/R1B1K2R w KQkq -"
"Benko gambit: 7.e4","rn1qkb1r/4pppp/b2p1n2/2pP4/4P3/2N5/PP3PPP/R1BQKBNR b KQkq -"
"English: Wimpey system *","rn1qkb1r/pb1p1ppp/1p2pn2/2p5/2PP4/4PN2/PP3PPP/RNBQKB1R w KQkq -"
"Blumenfeld counter-gambit, Dus-Chotimursky variation *","rn1qkb1r/pp2pppp/5n2/2p5/1PPp2b1/4PN2/P2P1PPP/RNBQKB1R w KQkq -"
"Sicilian: accelerated fianchetto, Maroczy bind, 6.Be3 *","rn1qkb1r/pp3ppp/4b3/2pnp3/8/2N3P1/PP1PPPBP/R1BQK1NR w KQkq -"
"Old Indian: Janowski variation","rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"Queen's bishop game *","rn1qkb1r/ppp1pppp/5n2/3p1b2/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"KGA: Kieseritsky, Brentano defense *","rn1qkb1r/ppp3p1/8/3ppbPp/3Pn3/5N2/PPP2P1P/RNBQKB1R w KQkq -"
"Sicilian: Canal-Sokolsky attack, 3...Bd7","rn1qkbnr/pp1bpppp/3p4/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Caro-Kann: classical variation","rn1qkbnr/pp2pppp/2p5/5b2/3PN3/8/PPP2PPP/R1BQKBNR w KQkq -"
"French: Alapin variation *","rn1qkbnr/ppp2ppp/4b3/3pp3/3P4/4P3/PPP2PPP/RNBQKBNR w KQkq -"
"Sicilian: Najdorf, Browne variation","rnb1k2r/1pq1bpp1/p2ppn1p/8/3NPP1B/2N2Q2/PPP3PP/R3KB1R w KQkq -"
"French: MacCutcheon, Bogolyubov variation","rnb1k2r/ppp2p1p/4pp2/q7/1b1P4/2N5/PPPQ1PPP/R3KBNR w KQkq -"
"KGA: Kieseritsky, Brentano defense, Kaplanek variation","rnb1k2r/ppp2p1p/5n2/3qN3/1b1P1ppP/2N5/PPP2KP1/R1BQ1B1R b kq -"
"Bogo-Indian defense, Nimzovich variation","rnb1k2r/ppppqppp/4pn2/8/1bPP4/5N2/PP1BPPPP/RN1QKB1R w KQkq -"
"Scandinavian: Pytel-Wade variation","rnb1kbnr/ppp1pppp/3q4/8/8/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"Dutch: Ilyin-Genevsky variation with Qc2","rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PPQ1PPBP/R1B2RK1 b - -"
"QGA: classical, 7.Qe2 *","rnb2rk1/pp2qppp/4pn2/2bp4/2P5/P3PN2/1P3PPP/RNBQKB1R w KQ -"
"Bishop's opening: Four pawns' gambit *","rnbq1r1k/p1p4P/5n2/2bpp2B/8/8/PPPP1PPP/RNBQK1NR w KQ -"
"Evans gambit: Alapin-Steinitz variation *","rnbq1rk1/p4ppp/2p2n2/2bpp1B1/B3P3/2NP4/PPP2PPP/R2QK1NR b KQ -"
"Evans gambit: Sanders-Alapin variation *","rnbq1rk1/p4ppp/2p2n2/2bpp3/B3P3/2NP4/PPPB1PPP/R2QK1NR b KQ -"
"Ruy Lopez: Siesta, Kopayev variation *","rnbq1rk1/pp1p1ppp/2p2n2/b7/4PB2/P1NP4/1PP3PP/R2QKBNR w KQ -"
"Dutch: stonewall with Ba3","rnbq1rk1/pp2b1pp/2p1pn2/3p1p2/2PP4/BP3NP1/P3PPBP/RN1Q1RK1 b - -"
"Catalan: closed, 6...Nbd7 *","rnbq1rk1/pp2ppbp/5np1/2pp4/3P4/4PN2/PPPNBPPP/R1BQ1RK1 b - -"
"Ruy Lopez: classical defense, Benelux variation *","rnbq1rk1/pp3ppp/2p2n2/3pp3/1b2P3/1BN2N2/PPPP1PPP/R1BQ1RK1 b - -"
"QGD: Anti-neo-orthodox variation","rnbq1rk1/ppp1bppp/4pn2/3p2B1/2PP4/2N1P3/PP3PPP/2RQKBNR b K -"
"Nimzo-Indian: Simagin variation","rnbq1rk1/ppp2ppp/3bpn2/3p4/2PP4/P1N1P3/1P2NPPP/R1BQKB1R w KQ -"
"Nimzo-Indian: 4.e3 e8g8, 5.Nf3 d7d5","rnbq1rk1/ppp2ppp/4pn2/3p4/1bPP4/2N1PN2/PP3PPP/R1BQKB1R w KQ -"
"KGA: Kieseritsky, Rice gambit *","rnbq1rk1/pppp2p1/8/2b2PPp/3pn3/3B1N2/PPP2P1P/RNBQK2R w KQ -"
"Grob: Romford counter-gambit *","rnbqk1nr/pp1pppbp/8/2pP2B1/8/8/PPP1PPPP/RN1QKBNR b KQkq -"
"French: Winawer, advance variation","rnbqk1nr/pp3ppp/4p3/2ppP3/1b1P4/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"French: Winawer (Nimzovich) variation","rnbqk1nr/ppp2ppp/4p3/3p4/1b1PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"Alekhine's defense: modern, Keres variation *","rnbqk2r/1pp2ppp/1b3n2/p2p4/4p3/1N1P2P1/PPP1PPBP/RNBQK2R w KQkq -"
"Evans gambit: Leonhardt variation *","rnbqk2r/p4ppp/2p2n2/2bpp3/BP2P3/2N5/P1PP1PPP/R1BQK1NR b KQkq -"
"Philidor: Steinitz variation *","rnbqk2r/pp1p1ppp/2p2n2/2b1p3/4P3/3P4/PPP1BPPP/RNBQK1NR w KQkq -"
"English: Neo-Catalan accepted *","rnbqk2r/pp1pppbp/5np1/2P5/8/4PN2/PPP2PPP/RNBQKB1R b KQkq -"
"Catalan: closed, 5.Nf3 *","rnbqk2r/pp2ppbp/5np1/2pp4/3P4/4PN2/PPP1BPPP/RNBQK2R w KQkq -"
"French: classical, Tartakower variation","rnbqk2r/ppp1bppp/4p3/3pP1B1/3Pn3/2N5/PPP2PPP/R2QKBNR w KQkq -"
"Pirc: classical (Two Knights) system","rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq -"
"English: Anglo-Grunfeld defense, Korchnoi variation","rnbqk2r/ppp2pbp/6p1/3np3/8/2N2NP1/PP1PPPBP/R1BQK2R w KQkq -"
"Sicilian: Kan, 5.Bd3 *","rnbqk2r/ppp2ppp/3b4/3np3/8/P3P3/1P1P1PPP/RNBQKBNR w KQkq -"
"KGA: Allgaier, Urusov attack *","rnbqk2r/ppp3p1/8/3ppPPp/3b4/7P/PPP3K1/RNBQ1BNR w kq -"
"Nimzo-Indian defense","rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"King's pawn game *","rnbqk2r/pppp1ppp/5n2/2b1p3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"QGD semi-Slav: anti-Meran, Alatortsev system","rnbqkb1r/p4p2/2p1p2p/1p1nP1N1/2pP3B/2N5/PP3PPP/R2QKB1R w KQkq -"
"Dresden opening *","rnbqkb1r/pp1p1ppp/5n2/2p1p3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"Hawk (Habichd) defense","rnbqkb1r/pp1ppppp/5n2/3P4/2p5/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"Sicilian: Cortlever (Alatortsev) variation","rnbqkb1r/pp2pppp/3p1n2/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"QGA: Alekhine defense *","rnbqkb1r/pp2pppp/5n2/2Pp4/8/P7/1PP1PPPP/RNBQKBNR b KQkq -"
"English: symmetrical, Rubinstein system","rnbqkb1r/ppn1pppp/8/2p5/8/2N3P1/PP1PPPBP/R1BQK1NR w KQkq -"
"English: Anglo-Grunfeld, Czech defense","rnbqkb1r/ppp1pp1p/1n4p1/8/8/2N3P1/PP1PPPBP/R1BQK1NR w KQkq -"
"Neo-Grunfeld defense","rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq -"
"King's Indian: fianchetto without c4 *","rnbqkb1r/ppp1pp1p/5np1/3p4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -"
"Scandinavian: Marshall variation","rnbqkb1r/ppp1pppp/8/3n4/3P4/8/PPP2PPP/RNBQKBNR w KQkq -"
"KGA: bishop's gambit, Morphy variation","rnbqkb1r/ppp2ppp/5n2/3B4/4Pp2/8/PPPP2PP/RNBQK1NR w KQkq -"
"KGD: Falkbeer, Keres variation","rnbqkb1r/ppp2ppp/5n2/3P4/4pP2/3P4/PPPN2PP/R1BQKBNR b KQkq -"
"Sicilian defense *","rnbqkb1r/ppp2ppp/5n2/3Pp3/8/4P3/PP1P1PPP/RNBQKBNR b KQkq -"
"Alekhine's defense: modern, Larsen variation *","rnbqkb1r/ppp2ppp/5n2/3p4/3NP3/8/PPP1PPPP/RNBQKB1R b KQkq -"
"English: Bremen, reverse Dragon","rnbqkb1r/ppp2ppp/5n2/3pp3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq -"
"Scotch: Fraser attack *","rnbqkb1r/ppp2ppp/5n2/4p2Q/8/2N5/PPPP1PPP/R1B1KBNR w KQkq -"
"English opening","rnbqkb1r/pppp1ppp/5n2/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -"
"Latvian: corkscrew counter-gambit","rnbqkb1r/pppp2pp/5n2/4N3/2B1p3/8/PPPP1PPP/RNBQK2R w KQkq -"
"Reti: King's Indian attack","rnbqkb1r/pppppp1p/5np1/8/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -"
"Amar (Paris) opening *","rnbqkb1r/pppppppp/7n/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Crab opening *","rnbqkbnr/1pppppp1/8/p6p/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Sicilian defense","rnbqkbnr/pp1p1ppp/4p3/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"French defense, Steiner variation *","rnbqkbnr/pp1p1ppp/8/2p1p3/8/4P3/PPPP1PPP/RNBQKBNR w KQkq -"
"Sicilian defense","rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Caro-Kann: exchange variation","rnbqkbnr/pp2pppp/2p5/3P4/3P4/8/PPP2PPP/RNBQKBNR b KQkq -"
"Old Benoni defense","rnbqkbnr/pp2pppp/3p4/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Queen's gambit accepted *","rnbqkbnr/pp2pppp/8/2Pp4/8/8/PPP1PPPP/RNBQKBNR b KQkq -"
"French: advance, Steinitz variation","rnbqkbnr/pp3ppp/4p3/2PpP3/8/8/PPP2PPP/RNBQKBNR b KQkq -"
"Nimzovich-Larsen attack: classical variation","rnbqkbnr/ppp1pppp/8/3p4/8/1P6/P1PPPPPP/RNBQKBNR w KQkq -"
"Philidor's defense","rnbqkbnr/ppp2ppp/3p4/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"KP: Nimzovich defense *","rnbqkbnr/ppp2ppp/8/3pp3/8/2N5/PPPPPPPP/R1BQKBNR w KQkq -"
"English opening","rnbqkbnr/pppp1ppp/8/4p3/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"Danish gambit","rnbqkbnr/pppp1ppp/8/8/3pP3/2P5/PP3PPP/RNBQKBNR b KQkq -"
"French: Steinitz attack *","rnbqkbnr/pppp1ppp/8/8/4p3/4P3/PPPP1PPP/RNBQKBNR w KQkq -"
"KGD: Falkbeer, 3...e4 *","rnbqkbnr/pppp2pp/8/4Pp2/3p4/8/PPP2PPP/RNBQKBNR b KQkq -"
"Benoni: classical, 9...Re8, 10.Nd2","rnbqr1k1/pp3pbp/3p1np1/2pP4/4P3/2N5/PP1NBPPP/R1BQ1RK1 b - -"
"Petrov: classical attack, Chigorin variation *","rnbqr1k1/ppp2ppp/3b1n2/3pN3/3P4/2N5/PPP1BPPP/R1BQK2R w KQ -"
"Bird: Hobbs gambit","rnbqkbnr/pppppp1p/8/6p1/5P2/8/PPPPP1PP/RNBQKBNR w KQkq g6"
"Reti: King's Indian attack, Neo-closed Sicilian","r2q1rk1/pp1bppbp/2np1np1/2p5/4P3/2PP1NP1/PP1N1PBP/R1BQR1K1 b - -"
"Reti: Nimzovich-Larsen attack","r1bqkb1r/pp3ppp/2n1pn2/2pp4/2P5/1P2PN2/PB1P1PPP/RN1QKB1R w KQkq -"
"English: Caro-Kann defensive system","rn1qkb1r/ppp1pppp/5n2/3p1b2/8/5NP1/PPPPPPBP/RNBQK2R w KQkq -"
"English: Bremen, modern line","rnbq1rk1/ppp1ppbp/3p1np1/8/2P5/2NP2P1/PP2PPBP/R1BQK1NR w KQ -"
"English: closed system, modern line","r1bq1rk1/1pp2pb1/2np1npp/4p3/1PP5/2NP1NP1/4PPBP/1RBQ1RK1 b - -"
"English: symmetrical, modern Botvinnik system","1rbq1rk1/p3ppbp/1pnp1np1/2p5/2P1P3/P1NP2P1/1P2NPBP/1RBQ1RK1 b - -"
"French: Albin-Alekhine-Chatard attack, Breyer variation","rnbqk2r/pp1nbppp/4p3/2ppP1B1/3P3P/2N5/PPP2PP1/R2QKBNR w KQkq c6"
"Halasz gambit","rnbqkbnr/pppp1ppp/8/8/3pPP2/8/PPP3PP/RNBQKBNR b KQkq f3"
"Alekhine's defence: four pawns attack, Planinc variation","rnbqkb1r/ppp1pp1p/1n1p4/4P1p1/2PP1P2/8/PP4PP/RNBQKBNR w KQkq g6"
"KGA: bishop's gambit, Bryan counter-gambit","rnbqkbnr/p1pp1ppp/8/1p6/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq b6"
"QGD Slav: Winawer counter-gambit","rnbqkbnr/pp3ppp/2p5/3pp3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq e6"
"QGD Slav: Carlsbad variation","r3kb1r/ppqn1ppp/2p2n2/4pb2/P1NP4/2N3P1/1P2PP1P/R1BQKB1R w KQkq e6"
"QGD: Been-Koomen variation","rnbqkb1r/pp3ppp/4pn2/2pp2B1/2PP4/2N5/PP2PPPP/R2QKBNR w KQkq c6"
"QGD: Orthodox defence (Bd3 line) Janowski variation","r1bq1rk1/pp1nbppp/2p1p3/3n2B1/2BP3P/2N1PN2/PP3PP1/2RQK2R b K h3"
"Neo-Gruenfeld (6.O-O c6)","rnbq1rk1/pp2ppbp/2p2np1/8/2pP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"Gruenfeld (5.Bf4)","rnbq1rk1/ppp1ppbp/5np1/3p4/2PP1B2/2N2N2/PP2PPPP/R2QKB1R w KQ -"
"Queen's Indian: Yates variation","rn1qk2r/1bpp1ppp/1p2pn2/p7/1bPP4/5NP1/PP1BPPBP/RN1QK2R w KQkq a6"
"King's Indian: Saemisch, Benoni","rnbq1rk1/pp2ppbp/3p1np1/2P5/2P1P3/2N1BP2/PP4PP/R2QKBNR b KQ -"
"King's Indian: orthodox (7.d5)","r1bq1rk1/1pp2pbp/3p1np1/p1nPp3/2P1P3/2N5/PPQ1BPPP/R1B1NRK1 b - -"
"QGD: Orthodox defense, classical, 13.d1b1 (Maroczy) *","1q3rk1/pp3ppp/2r1pn2/2bp4/4P3/2P5/PP1NQPPP/R1B2RK1 w - -"
"Vienna: Adams' gambit *","r1b1k1nr/ppp2ppp/1bn5/3p4/4P2q/2NN4/PPPP1PPP/R1BQKB1R w KQkq -"
"Scotch game","r1b1k1nr/pppp1ppp/2n5/1N6/1b2P2q/8/PPPB1PPP/RN1QKB1R b KQkq -"
"Evans gambit: compromised defense, Paulsen variation","r1b1k2r/ppppnppp/2n3q1/b3P3/2B5/BQN2N2/P4PPP/R4RK1 b kq -"
"Grunfeld: Botvinnik variation *","r1b1kb1r/pp3ppp/1qn1pn2/2pp4/3P4/4PNP1/PPP2PBP/RNBQ1RK1 b kq -"
"Grunfeld: Russian, Alekhine (Hungarian) variation *","r1b1kb1r/pp3ppp/2n2n2/2qpp3/8/P4NP1/1PP1PPBP/RNBQ1RK1 b kq -"
"Vienna: Steinitz gambit, Fraser-Minckwitz variation","r1b1kbnr/p1pp1ppp/1pn5/8/3PPp1q/2N5/PPP1K1PP/R1BQ1BNR w kq -"
"KGD: Falkbeer, Rubinstein variation *","r1b1kbnr/ppppq1pp/2n5/4Pp2/3p4/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"Benoni: classical, 9...a6, 10.a4 *","r1bq1rk1/1p2bppp/2n2n2/p3p3/2Pp4/P2P1NP1/1P3PBP/RNBQ1RK1 w - -"
"Ruy Lopez: closed (10...c5)","r1bq1rk1/4bppp/p2p1n2/npp1p3/4P3/2P2N1P/PPBP1PP1/RNBQR1K1 w - -"
"King's Indian: orthodox, Aronin-Taimanov, bayonet attack *","r1bq1rk1/p3bppp/2n2n2/1pp1p3/3pP3/3P1NP1/PPP1NPBP/R1BQ1RK1 w - -"
"Giuoco Piano *","r1bq1rk1/pp3ppp/2B2n2/2bpN3/8/2N5/PPPP1PPP/R1BQK2R b KQ -"
"QGD semi-Slav: Meran, Sozin variation *","r1bq1rk1/pp3ppp/3b4/3P4/1P2n3/4PN2/5PPP/R1BQKB1R w KQ -"
"Four Knights *","r1bq1rk1/ppp2ppp/2Bp1n2/4p3/1b2P3/2N2N2/PPPP1PPP/R1BQ1RK1 b - -"
"Ruy Lopez: open, Knorre variation *","r1bq1rk1/pppp1ppp/2n2n2/b3N3/4P3/P1N5/1PPP1PPP/R1BQKB1R w KQ -"
"Evans gambit: normal variation","r1bqk1nr/ppp2ppp/1bnp4/8/2BPP3/5N2/P4PPP/RNBQ1RK1 w kq -"
"Ruy Lopez: classical defense, Zaitsev variation","r1bqk1nr/pppp1ppp/8/1Bb1p3/1P1nP3/5N2/P1PP1PPP/RNBQ1RK1 b kq -"
"Scotch gambit: Benima defense","r1bqk1nr/ppppbppp/2n5/8/2BpP3/5N2/PPP2PPP/RNBQK2R w KQkq -"
"English: closed, Hort variation *","r1bqk2r/pp1pnpbp/2n1p1p1/2p5/4P3/2NPB1P1/PPP2PBP/R2QK1NR b KQkq -"
"QGD semi-Slav: Meran *","r1bqk2r/pp3ppp/2nb1n2/3pp3/1PP5/P3PN2/3N1PPP/R1BQKB1R b KQkq -"
"QGD semi-Slav: Bogolyubov variation *","r1bqk2r/pp3ppp/2nbpn2/2pp4/3P4/2P1PN2/PP1NBPPP/R1BQK2R b KQkq -"
"QGD semi-Slav: stonewall defense *","r1bqk2r/pp3ppp/2nbpn2/2ppN3/3P1P2/2P1P3/PP4PP/RNBQKB1R b KQkq -"
"Giuoco Pianissimo: Canal variation","r1bqk2r/ppp2ppp/2np1n2/2b1p1B1/2B1P3/2NP1N2/PPP2PPP/R2QK2R b KQkq -"
"English: closed, 5.Rb1 Taimanov variation","r1bqk2r/pppp1pbp/2n3pn/4p3/2P5/2N3P1/PP1PPPBP/1RBQK1NR w Kkq -"
"Ruy Lopez: open, Friess attack","r1bqkb1r/2pp1ppp/p1n5/1p2N3/B2Pn3/8/PPP2PPP/RNBQ1RK1 b kq -"
"QGD semi-Slav: Meran, Reynolds' variation","r1bqkb1r/3n1ppp/p3pn2/1ppP4/4P3/2NB1N2/PP3PPP/R1BQK2R b KQkq -"
"English: Four Knights system *","r1bqkb1r/pp1ppppp/2n2n2/2p5/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"QGD: Tarrasch, Prague variation *","r1bqkb1r/pp2pp1p/2n2np1/3p4/2PP4/2N2N2/PP3PPP/R1BQKB1R b KQkq -"
"QGA, 4.Nc3 *","r1bqkb1r/pp2pppp/2n2n2/2Pp4/8/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"QGD Slav\Grunfeld: Schlechter variation *","r1bqkb1r/pp2pppp/2n2n2/2pp4/3P4/2P2NP1/PP2PP1P/RNBQKB1R b KQkq -"
"QGD Slav: Tolush-Geller gambit *","r1bqkb1r/pp3ppp/2n2n2/2Pp4/1P2p3/2P2N2/P3PPPP/RNBQKB1R w KQkq -"
"Scandinavian defense *","r1bqkb1r/ppp2ppp/2n2n2/3p4/Q4B2/5N2/PPP1PPPP/RN2KB1R b KQkq -"
"Pirc: classical (Two Knights) system *","r1bqkb1r/ppp2ppp/2n2n2/3pp3/8/3P1NP1/PPP1PPBP/RNBQK2R b KQkq -"
"Sicilian: Pin variation (Sicilian counter-attack) *","r1bqkb1r/ppp2ppp/2n5/1B1np3/8/4PN2/PP1P1PPP/RNBQK2R b KQkq -"
"Sicilian *","r1bqkb1r/ppp2ppp/2n5/3np3/8/2NP1N2/PP2PPPP/R1BQKB1R b KQkq -"
"Two Knights defense","r1bqkb1r/ppp2ppp/5n2/n2Pp1N1/2B5/8/PPPP1PPP/RNBQK2R w KQkq -"
"Old Indian: Dus-Khotimirsky variation","r1bqkb1r/pppn1ppp/3p1n2/4p3/2PP4/2NBP3/PP3PPP/R1BQK1NR b KQkq -"
"French: Tarrasch, Guimard main line *","r1bqkb1r/pppn1ppp/5n2/3pp3/3P4/2N1PN2/PPP2PPP/R1BQKB1R b KQkq -"
"Two Knights defense","r1bqkb1r/pppp1ppp/2n2n2/4p1N1/2B1P3/8/PPPP1PPP/RNBQK2R b KQkq -"
"KGD: classical, Hanham variation *","r1bqkb1r/pppp2pp/2n2n2/4pp2/2B1P3/3P4/PPPN1PPP/R1BQK1NR b KQkq -"
"Philidor: Hanham, Schlechter variation","r1bqkbnr/pp1n1ppp/2pp4/4p3/2BPP3/2N2N2/PPP2PPP/R1BQK2R b KQkq -"
"English, Keres variation *","r1bqkbnr/pp1ppp1p/2n3p1/2p5/4P3/2PP4/PP3PPP/RNBQKBNR b KQkq -"
"Nimzo-Indian: Fischer variation *","r1bqkbnr/pp3ppp/2n1p3/1Bpp4/8/1P2PN2/P1PP1PPP/RNBQK2R b KQkq -"
"KP: Nimzovich defense, Bogolyubov variation","r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq -"
"French: Winawer, advance variation *","r1bqkbnr/ppp2ppp/2n5/1B1p4/2PPp3/4P3/PP3PPP/RNBQK1NR b KQkq -"
"English: Three Knights system","r1bqkbnr/pppp1ppp/2n5/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R b KQkq -"
"KGA: Keres (Mason-Steinitz) gambit *","r1bqkbnr/pppp2pp/2n5/4pP2/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Dunst (Sleipner,Heinrichsen) opening *","r1bqkbnr/pppppppp/2n5/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq -"
"Ruy Lopez: closed, Leonhardt variation *","r1bqr1k1/ppbn1pp1/2p2n1p/4p3/1PPpP1P1/P2P1N2/2Q1BP1P/RNB1K2R b KQ -"
"Sicilian: Dragon, classical, Reti-Tartakower variation","r1q2rk1/pp2ppbp/2npbnp1/8/4PP2/1NN1B3/PPP1B1PP/R2Q1RK1 w - -"
"Catalan: closed, Sokolsky variation","r2q1rk1/3nbppp/bpp1pn2/p2p4/2PP4/1P3NP1/PBQNPPBP/R4RK1 w - -"
"Sicilian: modern Scheveningen, main line with Nb3 *","r2q1rk1/ppp1b1pp/1nn1b3/4pp2/8/2NPPN2/PP1BBPPP/R2Q1RK1 w - -"
"Giuoco piano: Holzhausen attack *","r2q1rk1/ppp3pp/2n5/2bNp3/4P1b1/5N2/PPP1QPPP/R1B1K2R w KQ -"
"Ruy Lopez: open, St. Petersburg variation","r2qk2r/2p2ppp/p1n1b3/1pbpP3/4n3/1BP2N2/PP1N1PPP/R1BQ1RK1 b kq -"
"Petrov: classical attack, Krause variation","r2qk2r/ppp1b1pp/2n5/3p1p2/2PPn1b1/3B1N2/PP3PPP/RNBQR1K1 b kq -"
"Queen's Indian: 4.Nc3, Botvinnik variation *","r2qkb1r/pp2pppp/2n2nb1/2pp4/6PN/1P2P2P/PBPP1P2/RN1QKB1R b KQkq -"
"Sicilian: Dragon, Yugoslav attack, 7...O-O *","r2qkb1r/ppp3pp/2n1bp2/3np3/8/3P1NP1/PP2PPBP/RNBQ1RK1 b kq -"
"Sicilian: Najdorf, Polugayevsky variation *","r2qkb1r/ppp3pp/2n5/3npp2/1P4b1/P2PPN2/5PPP/RNBQKB1R b KQkq -"
"Scandinavian: Anderssen counter-attack orthodox attack *","r2qkb1r/pppb1ppp/2n2n2/1B6/Q3p3/2N5/PPP2PPP/R1B1K1NR w KQkq -"
"King's Indian: Samisch, orthodox, 7.d5 c6 *","r2qkbnr/pp4pp/2n1bp2/2p1p3/3pP3/2PP1NP1/PP3PBP/RNBQ1RK1 b kq -"
"Dutch: Staunton gambit, Alekhine variation *","r2qkbnr/ppp2pp1/2n5/3pP2p/6b1/5NP1/PPPPP2P/RNBQKB1R w KQkq -"
"French: classical, Vistaneckis (Nimzovich) variation *","r2qkbnr/ppp2ppp/2n5/3p4/3Pp1b1/4P3/PPP1BPPP/RNBQK1NR b KQkq -"
"French: classical *","r2qkbnr/ppp2ppp/2n5/3pp3/3P2b1/4PN2/PPP1BPPP/RNBQK2R b KQkq -"
"Ruy Lopez: Marshall, main line, Spassky variation *","r3r1k1/1p1n1p1p/1bpqb1p1/p2p2B1/1P1N3Q/P1PBR3/5PPP/5RK1 b - -"
"KGD: classical, Marshall attack","rn1qk1nr/ppp2ppp/8/2b1p3/Q3P1b1/2P2N2/PP1P2PP/RNB1KB1R b KQkq -"
"English: Bled variation *","rn1qkb1r/pb1ppppp/1p3n2/2p5/3P4/2P2NP1/PP2PP1P/RNBQKB1R b KQkq -"
"Reti accepted: Keres variation","rn1qkbnr/ppp1pppp/4b3/8/2p5/4PN2/PP1P1PPP/RNBQKB1R w KQkq -"
"Giuoco Piano: Eisinger variation","rnb1k1nr/ppppqppp/1b1P4/4p3/2B1P3/2P2N2/PP3PPP/RNBQK2R b KQkq -"
"French: Winawer, advance, poisoned pawn, Euwe-Gligoric variation","rnb1k1r1/ppq1np1Q/4p3/3pP3/3p4/P1P5/2P2PPP/R1BK1BNR b q -"
"KGD: Falkbeer, Alapin variation","rnb1k2r/ppp2ppp/8/3q4/4nP2/8/PPPNQbPP/RNBK1B1R b kq -"
"Two Knights defense: Paoli variation *","rnb1k2r/pppp1ppp/3b1q2/8/N3P1n1/2P2N2/P1Q2PPP/R1B1KB1R w KQkq -"
"QGD: Canal (Venice) variation","rnb1kb1r/pp3ppp/1q2pn2/2pP2B1/3P4/2N5/PP2PPPP/R2QKBNR w KQkq -"
"Scandinavian, Mieses-Kortch gambit","rnb1kbnr/ppp1pppp/8/q7/1P6/2N5/P1PP1PPP/R1BQKBNR b KQkq -"
"KGA: Kieseritsky, Salvio (Rosenthal) defense","rnb1kbnr/ppppqp1p/8/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq -"
"Catalan: closed, 7.Qc2 *","rnb2rk1/ppq1ppbp/5np1/2pp4/3P4/4PN2/PPPNBPPP/R1BQ1RK1 w - -"
"Ruy Lopez: closed, Breyer defense","rnbq1rk1/2p1bppp/p2p1n2/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - -"
"QGD: Semi-Tarrasch, Kmoch variation","rnbq1rk1/pp3ppp/4p3/1B6/3PP3/5N2/P2Q1PPP/R3K2R b KQ -"
"King's Indian: Gligoric-Taimanov system","rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N1BN2/PP2BPPP/R2QK2R b KQ -"
"Ruy Lopez: open, Richter variation *","rnbq1rk1/ppp2ppp/5n2/b3N3/1P1pP3/P1N5/2PP1PPP/R1BQKB1R w KQ -"
"Grob: Fritz gambit *","rnbqk1nr/pp1pppbp/8/2p3B1/3P4/8/PPP1PPPP/RN1QKBNR w KQkq -"
"French: Winawer, advance, Russian variation","rnbqk1nr/pp3ppp/4p3/2ppP3/1b1P2Q1/2N5/PPP2PPP/R1B1KBNR b KQkq -"
"Philidor: Philidor counter-gambit, Berger variation","rnbqk1nr/ppp3pp/4P3/2bp2N1/4p3/2N5/PPP2PPP/R1BQKB1R b KQkq -"
"KGA: Kieseritsky, Paulsen defense","rnbqk1nr/pppp1pbp/8/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq -"
"KGD: Falkbeer, Nimzovich variation *","rnbqk1nr/pppp2pp/8/4Pp2/1b1p4/8/PPP2PPP/RNBQKBNR w KQkq -"
"Nimzo-Indian: Fischer variation, 5.Ne2","rnbqk2r/p1pp1ppp/1p2pn2/8/1bPP4/2N1P3/PP2NPPP/R1BQKB1R b KQkq -"
"Sicilian: Dragon, Yugoslav attack","rnbqk2r/pp2ppbp/3p1np1/8/3NP3/2N1BP2/PPP3PP/R2QKB1R b KQkq -"
"Benoni: classical without 9.O-O","rnbqk2r/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQK2R b KQkq -"
"QGD: classical variation (5.Bf4)","rnbqk2r/ppp1bppp/4pn2/3p4/2PP1B2/2N2N2/PP2PPPP/R2QKB1R b KQkq -"
"King's Indian: Four pawns attack","rnbqk2r/ppp1ppbp/3p1np1/8/2PPPP2/2N5/PP4PP/R1BQKBNR b KQkq -"
"Ruy Lopez: modern Steinitz defense, Alapin variation *","rnbqk2r/ppp2ppp/5n2/3pp3/4P3/P1PP1P2/2P3PP/R1BQKBNR b KQkq -"
"Nimzo-Indian: Leningrad variation","rnbqk2r/pppp1ppp/4pn2/6B1/1bPP4/2N5/PP2PPPP/R2QKBNR b KQkq -"
"Nimzo-Indian: Romanishin-Kasparov (Steiner) system","rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N3P1/PP2PP1P/R1BQKBNR b KQkq -"
"KGA: Abbazia defense, Botvinnik variation *","rnbqk2r/pppp2pp/5n2/2b2P2/3N4/2P5/P4PPP/RNBQKB1R b KQkq -"
"Two Knights defense: Steinitz variation *","rnbqk2r/ppppbppp/7n/8/N3P3/2P2N1P/P4PP1/R1BQKB1R w KQkq -"
"Benko gambit: Nescafe Frappe attack","rnbqkb1r/4pppp/3p1n2/1NpP4/1pB1P3/8/PP3PPP/R1BQK1NR b KQkq -"
"Queen's Indian: 4.Nc3","rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq -"
"Ponziani: Reti variation *","rnbqkb1r/pp1p1ppp/2p2n2/4p3/4P3/2N5/PPPPNPPP/R1BQKB1R b KQkq -"
"Sicilian: Dragon, Levenfish variation","rnbqkb1r/pp2pp1p/3p1np1/8/3NPP2/2N5/PPP3PP/R1BQKB1R b KQkq -"
"QGD: Albin counter-gambit *","rnbqkb1r/pp2pppp/5n2/2pP4/4p3/8/PPP2PPP/RNBQKBNR w KQkq -"
"Caro-Kann: Panov-Botvinnik attack","rnbqkb1r/pp2pppp/5n2/3p4/2PP4/2N5/PP3PPP/R1BQKBNR b KQkq -"
"Benoni: Uhlmann variation","rnbqkb1r/pp3p1p/3p1np1/2pP2B1/8/2N2N2/PP2PPPP/R2QKB1R b KQkq -"
"Benoni: classical with e4 and Nf3","rnbqkb1r/pp3p1p/3p1np1/2pP4/4P3/2N2N2/PP3PPP/R1BQKB1R b KQkq -"
"Sicilian: Scheveningen, Keres attack","rnbqkb1r/pp3ppp/3ppn2/8/3NP1P1/2N5/PPP2P1P/R1BQKB1R b KQkq -"
"QGD Slav: 4.e3 Bf5 *","rnbqkb1r/pp3ppp/4pn2/2pp4/3P1B2/2P2N2/PP2PPPP/RN1QKB1R b KQkq -"
"Queen's pawn game, Chigorin variation *","rnbqkb1r/ppp1pppp/5n2/3p4/3P4/2N5/PPP1PPPP/R1BQKBNR b KQkq -"
"QGD: 4.Bg5","rnbqkb1r/ppp2ppp/4pn2/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR b KQkq -"
"Queen's pawn game *","rnbqkb1r/ppp2ppp/4pn2/3p4/3P4/4PN2/PPP2PPP/RNBQKB1R b KQkq -"
"French: Burn variation","rnbqkb1r/ppp2ppp/4pn2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq -"
"Sicilian: Flohr variation *","rnbqkb1r/ppp2ppp/8/3np3/8/2N5/PPQPPPPP/R1B1KBNR b KQkq -"
"Vienna gambit: Heyde variation","rnbqkb1r/ppp3pp/8/3pPp2/3Pn3/2N2Q2/PPP3PP/R1B1KBNR b KQkq -"
"Vienna gambit: Bardeleben variation","rnbqkb1r/ppp3pp/8/3pPp2/4n3/2N2Q2/PPPP2PP/R1B1KBNR w KQkq f6"
"Latvian counter-gambit *","rnbqkb1r/pppp1ppp/5n2/4p3/4PP2/8/PPPP2PP/RNBQKBNR b KQkq -"
"KGA: bishop's gambit, Cozio (Morphy) defense","rnbqkb1r/pppp1ppp/5n2/8/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq -"
"KGA: Kieseritsky, Berlin defense, Riviere variation *","rnbqkb1r/pppp2p1/8/4pPnp/3P4/5N2/PPP2P1P/RNBQKB1R b KQkq -"
"KGA: Bonsch-Osmolovsky variation","rnbqkb1r/ppppnppp/8/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq -"
"Trompovsky attack (Ruth, Opocensky opening)","rnbqkb1r/pppppppp/5n2/6B1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq -"
"Reti opening *","rnbqkb1r/pppppppp/5n2/8/8/5N2/PPPPPPPP/RNBQKB1R b KQkq -"
"KGA: bishop's gambit, Bryan counter-gambit","rnbqkbnr/p1pp1ppp/8/1p6/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq -"
"Sicilian: wing gambit, Santasiere variation *","rnbqkbnr/p2p1ppp/8/1Pp1p3/8/8/PP1PPPPP/RNBQKBNR w KQkq c6"
"English opening *","rnbqkbnr/pp1ppppp/8/2p5/8/4P3/PPPP1PPP/RNBQKBNR b KQkq -"
"QGD Slav: 3.Nf3","rnbqkbnr/pp2pppp/2p5/3p4/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq -"
"King's Indian defense *","rnbqkbnr/pp2pppp/8/2pp4/8/5NP1/PPPPPP1P/RNBQKB1R b KQkq -"
"QGD Slav defense: exchange variation *","rnbqkbnr/pp2pppp/8/3p4/3p4/2P5/PP2PPPP/RNBQKBNR w KQkq -"
"Queen's pawn game *","rnbqkbnr/ppp1pppp/8/3p4/3P4/8/PPP1PPPP/RNBQKBNR b KQkq -"
"KGA: Muzio gambit, Brentano defense","rnbqkbnr/ppp2p1p/8/3p4/2B1Ppp1/5N2/PPPP2PP/RNBQ1RK1 w kq -"
"French: exchange variation *","rnbqkbnr/ppp2ppp/8/3p4/3p4/4P3/PPP2PPP/RNBQKBNR w KQkq -"
"KGA: Kieseritsky, long whip (Stockwhip, classical) defense","rnbqkbnr/pppp1p2/8/4N2p/4PppP/8/PPPP2P1/RNBQKB1R w KQkq -"
"Caro-Kann defense *","rnbqkbnr/pppp1ppp/8/4p3/8/2P5/PP1PPPPP/RNBQKBNR b KQkq -"
"Dutch: Staunton gambit deferred","rnbqkbnr/pppp2pp/4p3/5p2/2PPP3/8/PP3PPP/RNBQKBNR b KQkq -"
"KGD: Falkbeer counter-gambit *","rnbqkbnr/pppp2pp/8/5p2/3pP3/8/PPP2PPP/RNBQKBNR w KQkq -"
"Lasker simul special *","rnbqkbnr/pppppp1p/6p1/8/7P/8/PPPPPPP1/RNBQKBNR b KQkq -"
"King's pawn opening","rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq -"
"Ruy Lopez: closed, Suetin variation *","rnbqr1k1/1p1p1ppp/pbp2n2/4p3/1P2P3/P1NP1N2/2P1BPPP/R1BQ1RK1 w - -"
"Grob: Fritz gambit","rn1qkbnr/ppp1pppp/8/3p4/2P3b1/8/PP1PPPBP/RNBQK1NR b KQkq c3"
"Bird's opening","rnbqkbnr/pppppppp/8/8/5P2/8/PPPPP1PP/RNBQKBNR b KQkq f3"
"Bird's opening","rnbqkbnr/ppp1pppp/8/3p4/5P2/8/PPPPP1PP/RNBQKBNR w KQkq d6"
"Reti: King's Indian attack, Reti-Smyslov variation","rnbqkb1r/pppppp1p/5np1/8/1P6/5NP1/P1PPPP1P/RNBQKB1R b KQkq b3"
"Reti: King's Indian attack","r1bqk2r/pp2bppp/2n1pn2/2pp4/4P3/3P1NP1/PPPN1PBP/R1BQ1RK1 b kq -"
"English: modern Nimzovich","r1bqkb1r/ppp2ppp/2n5/3np3/8/5NP1/PP1PPPBP/RNBQ1RK1 b kq -"
"Benoni: classical (9...a6 10.a4)","rnbq1rk1/1p3pbp/p2p1np1/2pP4/P3P3/2N2N2/1P2BPPP/R1BQ1RK1 b - a3"
"French: classical, Steinitz variation","rnb1k2r/pppnqppp/4p3/3pP3/3P1P2/2N5/PPP3PP/R2QKBNR b KQkq f3"
"French: Winawer, advance, positional main line (with ...Qc7)","rnb1k2r/p1q1nppp/1p2p3/1BppP3/P2P4/2P2N2/2P2PPP/R1BQK2R b KQkq -"
"Bishop's opening: Greco gambit","rnbqkb1r/pppp1ppp/5n2/4p3/2B1PP2/8/PPPP2PP/RNBQK1NR b KQkq f3"
"Fred","rnbqkbnr/ppppp1pp/8/5p2/4P3/8/PPPP1PPP/RNBQKBNR w KQkq f6"
"Vienna gambit: Heyde variation","rnbqkb1r/ppp3pp/8/3pPp2/3Pn3/2N2Q2/PPP3PP/R1B1KBNR b KQkq d3"
"King's gambit","rnbqkbnr/pppp1ppp/8/4p3/4PP2/8/PPPP2PP/RNBQKBNR b KQkq f3"
"Robatsch defence (4.Bc4)","rnbqk1nr/ppp1ppbp/3p2p1/8/2BPP3/5N2/PPP2PPP/RNBQK2R b KQkq -"
"QP counter-gambit (elephant gambit)","rnbqkbnr/ppp2ppp/8/3pp3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq d6"
"Giuoco Piano: Bird's attack","r1bqk2r/pppp1ppp/2n2n2/2b1p3/1PB1P3/2P2N2/P2P1PPP/RNBQK2R b KQkq b3"
"King's Indian: orthodox, Gelfand variation","r1bqnrk1/pp1n1pbp/3p2p1/2pPp3/2P1P1P1/2N1B3/PP2BP1P/R2QNRK1 b - g3"
"King's Indian: orthodox, Aronin-Taimanov, main line","r1bq1rk1/pppn2bp/3p2n1/3Pp1p1/P1P1Pp2/2N2P2/1P2BBPP/R2QNRK1 w - -"
"QGD: Orthodox defense, Swiss (Henneberger) variation *","2rqkb1r/pp3ppp/2n1pn2/2pp4/3P2b1/P3PN2/1PPNBPPP/R1BQ1RK1 b k -"
"QGD: Tartakower variation *","2rqkb1r/pp3ppp/4pn2/3p4/3P4/1P2B2P/P1P1QPP1/RN3RK1 b k -"
"Sicilian: Sozin, Benko variation","r1b1kb1r/pp2pppp/1qnp1n2/8/2BNP3/2N5/PPP2PPP/R1BQK2R w KQkq -"
"QGD semi-Slav: Stoltz variation *","r1b1kb1r/ppq2ppp/2n1pn2/2pp4/3P4/2P1PN2/PP1N1PPP/R1BQKB1R w KQkq -"
"Sicilian: Chekhover, Zaitsev variation","r1b1kbnr/pp1qpppp/2np4/1B6/3QP3/5N2/PPP2PPP/RNB1K2R w KQkq -"
"Grunfeld: Russian variation *","r1b1kbnr/pp2pppp/1qn5/2pp4/3P4/5NP1/PPP1PP1P/RNBQKB1R w KQkq -"
"Sicilian: Taimanov (Bastrikov) variation","r1b1kbnr/ppqp1ppp/2n1p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq -"
"Scotch: Paulsen, Gunsberg defense","r1bnk2r/ppppnppp/5q2/1Bb5/3NP3/2P1B3/PP3PPP/RN1QK2R w KQkq -"
"Ruy Lopez: closed, anti-Marshall 8.a4","r1bq1rk1/2ppbppp/p1n2n2/1p2p3/P3P3/1B3N2/1PPP1PPP/RNBQR1K1 b - -"
"Nimzo-Indian: Samisch, main line","r1bq1rk1/pp1p1ppp/2n1pn2/2p5/2PP4/P1PBP3/5PPP/R1BQK1NR w KQ -"
"Nimzo-Indian: 4.e3, Keres variation *","r1bq1rk1/pp3ppp/2nbpn2/1Bpp4/2PP4/1P2PN2/P4PPP/RNBQ1RK1 b - -"
"Grunfeld: Russian, Prins variation","r1bq1rk1/ppp1ppbp/n4np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R w KQ -"
"Four Knights: Janowski variation","r1bq1rk1/ppp2ppp/2np1n2/1B2p3/4P3/2PP1N2/P1P2PPP/R1BQR1K1 b - -"
"King's Indian: orthodox, Aronin-Taimanov, Benko attack","r1bq1rk1/pppnn1bp/3p2p1/3Ppp2/2P1P1P1/2N2P2/PP2B2P/R1BQNRK1 b - -"
"Four Knights: double Ruy Lopez","r1bq1rk1/pppp1ppp/2n2n2/1B2p3/1b2P3/2NP1N2/PPP2PPP/R1BQ1RK1 b - -"
"Ruy Lopez: Alapin's defense deferred","r1bqk1nr/1ppp1ppp/p1n5/4p3/Bb2P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Benko gambit: Nescafe Frappe attack *","r1bqk1nr/pp3ppp/8/1Pb1p3/1nPp4/3P1N2/4PPPP/RNBQKB1R w KQkq -"
"Evans gambit: Ulvestad variation","r1bqk1nr/ppp2ppp/1b1p4/n2P4/2B1P3/5N2/PB3PPP/RN1Q1RK1 b kq -"
"Scotch: Romanishin variation","r1bqk1nr/pppp1ppp/2n5/8/1b2P3/1N6/PPP2PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: closed, Basque gambit (North Spanish variation)","r1bqk2r/1pppbppp/p1n5/4P3/B2pn3/2P2N2/PP3PPP/RNBQ1RK1 b kq -"
"Giuoco Piano: Greco's attack *","r1bqk2r/pp3ppp/2n2n2/1Bbpp3/8/2N2N2/PPPP1PPP/R1BQK2R w KQkq -"
"Sicilian: Magnus Smith trap *","r1bqk2r/ppp2ppp/2n5/2b5/4p3/2PP1NP1/P3PP1P/R1BQKB1R w KQkq -"
"Nimzo-Indian: 4.e3, Taimanov variation","r1bqk2r/pppp1ppp/2n1pn2/8/1bPP4/2N1P3/PP3PPP/R1BQKBNR w KQkq -"
"Ruy Lopez: modern Steinitz defense, Three Knights variation *","r1bqk2r/pppp1ppp/2n2n2/b3p3/4P3/P1NP4/1PP2PPP/R1BQKBNR w KQkq -"
"Sicilian: Scheveningen, classical, Nd7 system","r1bqkb1r/1p1n1ppp/p2ppn2/8/3NP3/2N5/PPP1BPPP/R1BQ1RK1 w kq -"
"Caro-Kann: Panov-Botvinnik, normal variation","r1bqkb1r/pp3ppp/2n1pn2/3p2B1/2PP4/2N5/PP3PPP/R2QKBNR w KQkq -"
"Sicilian: Taimanov, American attack *","r1bqkb1r/ppp2ppp/2n5/1B2p3/8/2NnPN2/PP1P1PPP/R1BQK2R w KQkq -"
"Vienna: Hamppe-Allgaier gambit, Alapin variation *","r1bqkb1r/pppp2p1/2n5/4pPPp/6n1/2NP4/PPP2P1P/R1BQKBNR b KQkq -"
"QGD: Tarrasch, Folkestone (Swedish) variation","r1bqkbnr/pp3ppp/2n5/3p4/2pP4/2N2NP1/PP2PP1P/R1BQKB1R w KQkq -"
"QGD: Tarrasch defense, Marshall gambit *","r1bqkbnr/pp3ppp/2n5/3pp3/2PP4/8/PP3PPP/RNBQKBNR w KQkq -"
"French: Tarrasch, Guimard variation","r1bqkbnr/ppp2ppp/2n1p3/3p4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq -"
"French: MacCutcheon, Dr. Olland (Dutch) variation *","r1bqkbnr/ppp2ppp/2n5/1B1p4/3Pp3/4PN1P/PPP2PP1/RNBQK2R w KQkq -"
"KP: Nimzovich defense, Marshall gambit *","r1bqkbnr/ppp2ppp/2n5/3p4/3Q4/2N5/PPP1PPPP/R1B1KBNR w KQkq -"
"Caro-Kann: classical, Maroczy attack *","r1bqkbnr/ppp3pp/6n1/3p1p2/8/2P3B1/PP2PPPP/RN1QKBNR w KQkq -"
"Vienna: Hamppe-Muzio gambit","r1bqkbnr/pppp1p1p/2n5/8/2B1Ppp1/2N2N2/PPPP2PP/R1BQ1RK1 b kq -"
"KP: Neo-Mongoloid defense","r1bqkbnr/ppppp1pp/2n2p2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -"
"Dunst (Sleipner, Heinrichsen) opening *","r1bqkbnr/pppppppp/2n5/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Ruy Lopez: open, Breslau variation","r2q1rk1/2p1bppp/p3b3/1p1pn3/3Nn3/1BP5/PP3PPP/RNBQR1K1 w - -"
"Sicilian: closed, Smyslov variation *","r2qk1nr/ppp1npbp/3pb1p1/3Np3/2P5/4P1P1/PP1P1PBP/R1BQK1NR w KQkq -"
"Sicilian: Dragon, classical, Nottingham variation *","r2qk2r/ppp1bppp/1nn1b3/4p3/8/2NP1NP1/PP2PPBP/R1BQK2R w KQkq -"
"Sicilian: Taimanov variation *","r2qk2r/ppp1bppp/2n1b3/3np3/8/P1N1P3/1PQP1PPP/R1B1KBNR w KQkq -"
"QGD: semi-Slav, Koomen variation *","r2qkb1r/1p1b1ppp/2n1pn2/pBPp4/1P6/2P1P3/P3QPPP/RNB1K1NR b KQkq -"
"French: Albin-Alekhine-Chatard attack *","r2qkbnr/ppp2pp1/2n5/3p3p/3Pp1b1/4P3/PPPNBPPP/RNBQK2R w KQkq -"
"French: MacCutcheon, advance variation *","r2qkbnr/ppp2ppp/2n5/1B1p4/3Pp1b1/4PN2/PPP2PPP/RNBQK2R w KQkq -"
"Sicilian: Richter-Rauzer, Keres variation *","r3kb1r/ppp2ppp/2nq4/3np3/6b1/2NPPN2/PP3PPP/R1BQKB1R w KQkq -"
"Catalan: closed, Sokolsky variation *","r4rk1/pbqnppbp/1p3np1/2pp4/P2P4/BPP1PN2/3NBPPP/R2Q1RK1 b - -"
"Queen's Indian: 4.Nc3, main line","rn1qk2r/pbpp1pp1/1p2pn1p/8/1bPP3B/2N2N2/PP2PPPP/R2QKB1R w KQkq -"
"Benko gambit","rn1qkb1r/4pp1p/3p1np1/2pP4/4P3/2N3P1/PP3P1P/R1BQ1KNR b kq -"
"Queen's pawn: Torre attack *","rn1qkb1r/ppp1pppp/5n2/3p4/6b1/4PN2/PPPP1PPP/RNBQKB1R w KQkq -"
"King's Indian: Torre attack *","rn1qkb1r/ppp1pppp/5n2/3p4/6b1/5NP1/PPPPPP1P/RNBQKB1R w KQkq -"
"Queen's pawn, Mason variation *","rn1qkbnr/ppp1pppp/8/3p1b2/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Queen's pawn: London system *","rn1qkbnr/ppp1pppp/8/3p1b2/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"Scandinavian defense","rn2kb1r/ppp1pppp/5n2/q4b2/3P4/2N2N2/PPP2PPP/R1BQKB1R w KQkq -"
"Bishop's opening: Lopez gambit *","rnb1k1nr/pp1pq1pp/2p5/2b1pp2/2B1P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq -"
"KGA: bishop's gambit, McDonnell attack","rnb1k1nr/pppp1pbp/8/6p1/2B1Pp1q/2N3P1/PPPP3P/R1BQ1KNR b kq -"
"Ruy Lopez: closed, Leonhardt variation","rnb1k2r/2q1bp1p/p2p1n2/1ppPp1p1/4P3/2P2N1P/PPBN1PP1/R1BQR1K1 w kq -"
"Queen's pawn: Englund gambit *","rnb1kb1r/ppp1pppp/5n2/8/3q4/2N2N2/PPPPQ1PP/R1B1KB1R b KQkq -"
"Queen's pawn: Mengarini attack *","rnb1kbnr/ppq1pppp/8/2pp4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -"
"QGD: Lasker defense, Bernstein variation","rnb2rk1/ppp2pp1/3q3p/3p4/3P4/1QP1PN2/P4PPP/R3KB1R w KQ -"
"Ruy Lopez: open Berlin defense, l'Hermet variation *","rnbq1rk1/ppp2ppp/5n2/8/1b2p3/2NN4/PPPP1PPP/R1BQKB1R w KQ -"
"Caro-Kann: advance, Short variation *","rnbqk1nr/pp2bppp/2p5/3p4/3PpB2/2P1P3/PP3PPP/RN1QKBNR w KQkq -"
"Modern defense: Averbakh system, Randspringer variation","rnbqk1nr/ppp1p1bp/3p2p1/5p2/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq -"
"KGA: Philidor gambit, Schultz variation","rnbqk1nr/ppp2pb1/3p3p/6p1/2BPPp1P/3Q1N2/PPP3P1/RNB1K2R b KQkq -"
"French: Winawer, Alekhine gambit","rnbqk1nr/ppp2ppp/4p3/8/3Pp3/P1b5/1PP1NPPP/R1BQKB1R w KQkq -"
"Bishop's opening: Lewis gambit *","rnbqk1nr/ppp2ppp/8/2bpp3/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq -"
"Alekhine's defense: Krejcik variation *","rnbqk1nr/pppp1ppp/8/2b1p3/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"English, Kramnik-Shirov counterattack","rnbqk1nr/pppp1ppp/8/4p3/1bP5/2N5/PP1PPPPP/R1BQKBNR w KQkq -"
"KGA: Cunningham, Bertin gambit","rnbqk1nr/pppp1ppp/8/8/2B1Pp1b/5NP1/PPPP3P/RNBQK2R b KQkq -"
"French: Albin-Alekhine-Chatard attack, Breyer variation","rnbqk2r/pp1nbppp/4p3/2ppP1B1/3P3P/2N5/PPP2PP1/R2QKBNR w KQkq -"
"Sicilian: Pin variation (Sicilian counter-attack)","rnbqk2r/pp1p1ppp/4pn2/8/1b1NP3/2N5/PPP2PPP/R1BQKB1R w KQkq -"
"Nimzo-Indian: Leningrad, main line","rnbqk2r/pp3pp1/3ppn1p/2pP4/1bP4B/2N5/PP2PPPP/R2QKBNR w KQkq -"
"Grunfeld: Three Knights variation","rnbqk2r/ppp1ppbp/5np1/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq -"
"Dutch: Leningrad, Karlsbad variation *","rnbqk2r/ppp1ppbp/6pn/3p4/5P2/6P1/PPPPP1BP/RNBQK1NR w KQkq -"
"Nimzo-Indian: classical, Noa variation, main line","rnbqk2r/ppp2ppp/4p3/3p4/2PPn3/P1Q5/1P2PPPP/R1B1KBNR w KQkq -"
"Two Knights defense: Lolli attack *","rnbqk2r/ppp2ppp/8/2bp4/3NP1n1/2N5/PPP2PPP/R1BQKB1R w KQkq -"
"Alekhine's defense: O'Sullivan gambit","rnbqkb1r/p1pppppp/8/1p1nP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq -"
"Ponziani opening *","rnbqkb1r/pp1p1ppp/2p2n2/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"QGD: Been-Koomen variation","rnbqkb1r/pp3ppp/4pn2/2pp2B1/2PP4/2N5/PP2PPPP/R2QKBNR w KQkq -"
"Catalan: open, 5.Qa4","rnbqkb1r/ppp2ppp/4pn2/8/Q1pP4/6P1/PP2PPBP/RNB1K1NR b KQkq -"
"Caro-Kann: Panov-Botvinnik attack, 5...e6","rnbqkb1r/pp3ppp/4pn2/3p4/2PP4/2N5/PP3PPP/R1BQKBNR w KQkq -"
"Sicilian: accelerated fianchetto, Maroczy bind *","rnbqkb1r/pp3ppp/8/2pnp3/8/2N3P1/PP1PPP1P/R1BQKBNR w KQkq -"
"QGD: Capablanca-Duras variation","rnbqkb1r/ppp2pp1/4pn1p/3p2B1/2PP4/5N2/PP2PPPP/RN1QKB1R w KQkq -"
"Sicilian defense *","rnbqkb1r/ppp2ppp/5n2/3pp3/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -"
"Vienna gambit","rnbqkb1r/ppp2ppp/5n2/3pp3/4PP2/2N5/PPPP2PP/R1BQKBNR w KQkq -"
"Philidor: exchange variation *","rnbqkb1r/ppp2ppp/8/3np3/8/3P4/PPP2PPP/RNBQKBNR w KQkq -"
"Irish (Chicago) gambit *","rnbqkb1r/ppp2ppp/8/3pp3/4N3/8/PPPP1PPP/R1BQKBNR w KQkq -"
"Sicilian: Prins (Moscow) variation *","rnbqkb1r/ppp3pp/5p2/3np3/8/3P1N2/PP2PPPP/RNBQKB1R w KQkq -"
"KGA: Kieseritsky, Salvio (Rosenthal) defense *","rnbqkb1r/pppp2p1/8/4pPPp/4n3/8/PPPPQP1P/RNB1KBNR b KQkq -"
"King's Indian: East Indian defense","rnbqkb1r/pppppp1p/5np1/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"Reti: King's Indian attack (Barcza system) *","rnbqkb1r/pppppp1p/5np1/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Alekhine's defense: Mokele Mbembe (Bucker) variation","rnbqkb1r/pppppppp/8/4P3/4n3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Owen defense","rnbqkbnr/p1pppppp/1p6/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Polish: Outflank variation","rnbqkbnr/pp1ppppp/2p5/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq -"
"Saragossa opening *","rnbqkbnr/pp1ppppp/2p5/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Old Indian defense *","rnbqkbnr/pp2pppp/8/2pp4/8/3P4/PPP1PPPP/RNBQKBNR w KQkq -"
"French: advance variation *","rnbqkbnr/pp3ppp/2p5/3p4/2PPp3/4P3/PP3PPP/RNBQKBNR w KQkq -"
"Alekhine's defense *","rnbqkbnr/pp3ppp/8/2pp4/3Np3/3P4/PPP1PPPP/RNBQKB1R w KQkq -"
"Gedult attack *","rnbqkbnr/ppp1p2p/5p2/3p2p1/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"Old Benoni defense *","rnbqkbnr/ppp1pppp/8/8/2PpP3/8/PP1P1PPP/RNBQKBNR b KQkq e3"
"Philidor: Larsen variation","rnbqkbnr/ppp2p1p/3p2p1/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq -"
"Scandinavian: Richter variation *","rnbqkbnr/ppp2ppp/8/3p4/3p4/5NP1/PPP1PP1P/RNBQKB1R b KQkq -"
"QGD: Albin counter-gambit","rnbqkbnr/ppp2ppp/8/3pp3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"Queen's pawn","rnbqkbnr/pppp1ppp/4p3/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Grob's attack","rnbqkbnr/pppppppp/8/8/6P1/8/PPPPPP1P/RNBQKBNR b KQkq g3"
"Reti: King's Indian attack, Neo-closed Sicilian","r1bq1rk1/pp2npbp/2npp1p1/2p5/4P3/2PP1NP1/PP1N1PBP/R1BQR1K1 b - -"
"English: symmetrical, Botvinnik system","r1bqk1nr/pp1pppbp/2n3p1/2p5/2P1P3/2N3P1/PP1P1PBP/R1BQK1NR b KQkq e3"
"Gedult attack","rnbqkb1r/ppp1pppp/5n2/3p4/3P2P1/5P2/PPP1P2P/RNBQKBNR b KQkq g3"
"Dutch: Von Pretzel gambit","rnbqkbnr/pppp2pp/4p3/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq g3"
"King's knight's gambit","rnbqkbnr/pppp1p1p/8/6p1/4Pp1P/5N2/PPPP2P1/RNBQKB1R b KQkq h3"
"Pirc: step variation","rnbqk2r/ppp1bppp/3p1n2/3Pp3/4P3/5P2/PPP3PP/RNBQKBNR w KQkq -"
"Pirc: Austrian attack, dragon formation","rnbqk2r/pp2ppbp/3p1np1/2p5/3PPP2/2N2N2/PPP3PP/R1BQKB1R w KQkq c6"
"Caro-Kann: advance variation","rn1qkbnr/pp2pppp/2p5/3pPb2/3P4/8/PPP2PPP/RNBQKBNR w KQkq -"
"Sicilian defence (nascent KIA)","r1bqkbnr/pp1p1ppp/2n1p3/2p5/4P3/3P1N2/PPP2PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: wing attack","r1bqk2r/2ppbppp/p1n2n2/1p2p3/P3P3/1B3N2/1PPP1PPP/RNBQ1RK1 b kq a3"
"Catalan opening","rnb1k2r/ppppqppp/4pn2/8/1bPP4/6P1/PP1BPP1P/RN1QKBNR w KQkq -"
"Queen's Indian: old main line","rn1q1rk1/pbppbppp/1p2p3/8/2PP4/2n2NP1/PPQ1PPBP/R1B2RK1 w - -"
"Nimzo-Indian: Saemisch, Romanovsky variation","rnbqk2r/pp4pp/4p3/2Pn1p2/8/P1P2P2/4P1PP/R1BQKBNR w KQkq f6"
"King's Indian: orthodox (8.Re1)","r1bq1rk1/pp3pbp/n1pp1np1/4p3/2PPP3/2N2N2/PP3PPP/R1BQRBK1 b - -"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 defense, 9...Nxd4 *","2kr1b1r/pppq2pp/2n5/3Npp2/6b1/3PPN2/PP2BPPP/R1BQ1RK1 b - -"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 defense, 9.f4 *","2kr1b1r/pppq2pp/2n5/3npp2/6b1/2NPPN2/PP2BPPP/R1BQ1RK1 w - -"
"QGD: Orthodox defense, Bd3 line *","2rqk2r/pp3ppp/2nbpn2/2pp4/3P2b1/2P1PN2/PP1NBPPP/R1BQ1RK1 w k -"
"Nimzo-Indian: classical, Noa variation, 5.cd ed *","r1b1kbnr/ppq1pppp/2n5/1B1p4/3P4/5N2/PPP2PPP/RNBQK2R b KQkq -"
"QGD Slav: Dutch, Samisch variation *","r1b2rk1/1p2qp1p/2n1pn2/pBbpN1p1/5B2/2P1P3/PP3PPP/RN1Q1RK1 w - -"
"Ruy Lopez: Worrall attack, sharp line","r1bq1rk1/2ppbppp/p1n2n2/1p2p3/4P3/1B3N2/PPPPQPPP/RNB2RK1 w - -"
"QGD: Orthodox defense, Rubinstein attack, Wolf variation","r1bq1rk1/pp1nbppp/2p1p3/3p2B1/2PPn3/2N1PN2/PPQ2PPP/2R1KB1R w K -"
"Nimzo-Indian: 4.e3, main line with 7...Nc6","r1bq1rk1/pp3ppp/2n1pn2/2pp4/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 w - -"
"Four Knights: symmetrical, Pillsbury variation","r1bq1rk1/ppp1nppp/3p1n2/1B2p1B1/1b2P3/2NP1N2/PPP2PPP/R2Q1RK1 w - -"
"English: symmetrical, Botvinnik system reversed *","r1bqk1nr/pp1p1pbp/2n1p1p1/2p5/2P1P3/2N3P1/PP1P1PBP/R1BQK1NR b KQkq -"
"Sicilian: Kan, Maroczy bind - Bronstein variation","r1bqk2r/1p1p1ppp/p1n1pn2/8/1bPNP3/2N5/PPB2PPP/R1BQK2R b KQkq -"
"Ruy Lopez: closed, center attack","r1bqk2r/1pppbppp/p1n2n2/4p3/B2PP3/5N2/PPP2PPP/RNBQ1RK1 b kq -"
"French: Tarrasch, Leningrad variation *","r1bqk2r/pp1nnppp/3b4/3p4/3Pp3/1NN1P3/PP3PPP/R1BQKB1R b KQkq -"
"QGD: Tarrasch, Wagner variation *","r1bqk2r/pp2ppbp/2n2np1/3p2B1/2PP4/2N2N2/PP3PPP/R2QKB1R b KQkq -"
"QGD semi-Slav: Romih variation *","r1bqk2r/pp3ppp/2nbpn2/1Bpp4/3P4/2P1PN2/PP1N1PPP/R1BQK2R b KQkq -"
"QGD semi-Slav: neo-Meran (Lundin variation) *","r1bqk2r/pp3ppp/2nbpn2/1P1p4/8/2P1PN2/P2N1PPP/R1BQKB1R b KQkq -"
"QGD semi-Slav: Meran, Rabinovich variation *","r1bqk2r/pp3ppp/3b1n2/3P2N1/1n2p3/P3P3/3N1PPP/R1BQKB1R b KQkq -"
"Sicilian: closed, 6.Ne2 e5 (Botvinnik) *","r1bqk2r/ppp1npbp/2np2p1/4p3/2P1P3/2NP2P1/PP3PBP/R1BQK1NR b KQkq -"
"Giuoco Piano: Bird's attack","r1bqk2r/pppp1ppp/2n2n2/2b1p3/1PB1P3/2P2N2/P2P1PPP/RNBQK2R b KQkq -"
"QGD semi-Slav: anti-Meran, Szabo variation","r1bqkb1r/p2n1p2/2p1pn2/1p2P1B1/2pP4/2N2Q2/PP3PPP/R3KB1R b KQkq -"
"QGD semi-Slav: anti-Meran, Lilienthal variation","r1bqkb1r/p2n1p2/2p1pn2/1p2P1B1/2pP4/2N3P1/PP3P1P/R2QKB1R b KQkq -"
"QGD: Alekhine variation","r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PPP3/2N2N2/PP3PPP/R2QKB1R b KQkq -"
"Alekhine's defense: four pawns attack, 7.Be3","r1bqkb1r/ppp1pppp/1nn5/4P3/2PP4/4B3/PP4PP/RN1QKBNR b KQkq -"
"Sicilian: Dragon variation *","r1bqkb1r/ppp2ppp/2n5/3np3/8/3P1NP1/PP2PP1P/RNBQKB1R b KQkq -"
"Three Knights: Steinitz, Rosenthal variation *","r1bqkb1r/ppp2ppp/5n2/3Pp3/3n4/2N3P1/PPPP1P1P/R1BQKBNR w KQkq -"
"Caro-Kann: Two Knights, 3...Bg4 *","r1bqkb1r/pppp1ppp/2n2n2/4p1B1/3P4/2P5/PP2PPPP/RN1QKBNR b KQkq -"
"English: Four Knights, Nimzovich variation","r1bqkb1r/pppp1ppp/2n2n2/4p3/2P1P3/2N2N2/PP1P1PPP/R1BQKB1R b KQkq -"
"English: Four Knights, Marini variation","r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/P1N2N2/1P1PPPPP/R1BQKB1R b KQkq -"
"Ruy Lopez: modern Steinitz defense, Duras (Keres) variation","r1bqkbnr/1pp2ppp/p1np4/4p3/B1P1P3/5N2/PP1P1PPP/RNBQK2R b KQkq -"
"Sicilian, Szen (`anti-Taimanov') variation","r1bqkbnr/pp1p1ppp/2n1p3/1N6/4P3/8/PPP2PPP/RNBQKB1R b KQkq -"
"English: Anglo-Grunfeld defense *","r1bqkbnr/pp1ppppp/2n5/2p5/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq -"
"English: Sicilian reversed *","r1bqkbnr/pp1ppppp/2n5/2p5/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq -"
"French: Winawer, Petrosian variation *","r1bqkbnr/ppp2ppp/2n5/1B1p4/3Pp3/4P3/PPPQ1PPP/RNB1K1NR b KQkq -"
"Sicilian: closed, 2...Nc6 *","r1bqkbnr/pppp1ppp/2n5/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq -"
"Vienna: Fyfe gambit","r1bqkbnr/pppp1ppp/2n5/4p3/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq -"
"Scandinavian: Pytel-Wade variation *","r1bqkbnr/pppp1ppp/2n5/8/8/3Q4/PPP1PPPP/RNB1KBNR b KQkq -"
"Vienna gambit *","r1bqkbnr/pppp2pp/2n5/4pp2/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq -"
"Two Knights: Max Lange attack, Marshall variation *","r1bqr1k1/ppp2ppp/8/2PPn3/2B2Qn1/2N1Bp2/PPP2PPP/R3K2R w KQ -"
"Four Knights: Spielmann variation *","r1bqr1k1/ppp2ppp/8/3pn3/3Q4/P1P1B3/1PP2PPP/R3KB1R b KQ -"
"Evans gambit: Steinitz variation *","r2q1rk1/p4ppp/2n1bn2/2bpp3/N7/1B1P1P2/PPP3PP/R1BQK1NR w KQ -"
"QGD: Tarrasch, Prague variation, 9.Bg5 *","r2q1rk1/pp2ppbp/2n2np1/3p4/2PP2b1/2N2N2/PP2BPPP/R1BQ1RK1 w - -"
"Sicilian: Dragon, classical, Bernard defense","r2q1rk1/pp2ppbp/5np1/n2p1P2/4P3/1NNPB3/PP4PP/R2Q1RK1 w - -"
"Sicilian: Dragon, classical, Spielmann variation *","r2q1rk1/ppp3pp/1nnbb3/2B1p3/N4p2/3P1NP1/PP2PPBP/R2Q1RK1 w - -"
"Evans gambit: Sanders-Alapin variation","r2qk1nr/pppb1ppp/2np4/b3p3/2BPP3/2P2N2/P4PPP/RNBQ1RK1 w kq -"
"Ruy Lopez: open, 9...Be7, 10.Re1","r2qk2r/2p1bppp/p1n1b3/1p1pP3/4n3/1BP2N2/PP3PPP/RNBQR1K1 b kq -"
"Ruy Lopez: open, 9.c3","r2qkb1r/2p2ppp/p1n1b3/1p1pP3/4n3/1BP2N2/PP3PPP/RNBQ1RK1 b kq -"
"Ruy Lopez: open, Bernstein variation, Karpov gambit","r2qkb1r/2p2ppp/p1n1b3/1pn1P1N1/3p4/1BP5/PP1N1PPP/R1BQ1RK1 b kq -"
"Sicilian: Richter-Rauzer, Larsen variation, 7.Qd2","r2qkb1r/pp1bpppp/2np1n2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R b KQkq -"
"QGD: Cambridge Springs defense, Capablanca variation *","r2qkb1r/pp3ppp/2n1pn2/2pp4/Q2P4/2P1Pb2/PP1N1PPP/R1B1KB1R w KQkq -"
"French: exchange, Bogolyubov variation *","r2qkbnr/ppp2ppp/2n5/3p4/3P2b1/2N2N2/PPP2PPP/R1BQKB1R b KQkq -"
"Sicilian: Dragon, Yugoslav attack, 9...Bd7 *","r3k2r/pppq2pp/2n1bp2/2bnp3/8/2NP1NP1/PP1BPPBP/R2Q1RK1 b kq -"
"Sicilian: Najdorf, Goteborg (Argentine) variation *","r3kb1r/ppp3pp/2n2q2/3npp1b/6P1/P2PPN1P/1P2BP2/RNBQK2R b KQkq -"
"QGD: Orthodox defense, 7.Qc2 c5, 8.cd (Rubinstein) *","r3kb1r/ppq2ppp/2n1pn2/3p4/2Pp2b1/4PN2/PP1NBPPP/R1BQ1RK1 w kq -"
"Petrov: classical attack, Tarrasch variation","rn1q1rk1/ppp2ppp/3b4/3p4/2PPn1b1/3B1N2/PP3PPP/RNBQ1RK1 w - -"
"Dutch-Indian, Alekhine variation *","rn1qk1nr/pp1bppbp/6p1/2pp4/5P2/4PN2/PPPPB1PP/RNBQK2R b KQkq -"
"KGA: bishop's gambit, Greco variation","rnb1k1nr/pppp1ppp/8/2b5/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq -"
"Ruy Lopez: Wormald attack, Grunfeld variation *","rnb1k2r/pp2qppp/1bp2n2/3pp1B1/1P2P3/P1NP1N2/2P1BPPP/R2QK2R b KQkq -"
"Ruy Lopez: Noah's ark trap *","rnb1k2r/ppp2ppp/1b6/3qp3/1PP5/P2P4/5PPP/R1BQKBNR b KQkq -"
"QGA: Mannheim variation *","rnb1kb1r/pp2pppp/5n2/q1Pp4/8/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"KGA: bishop's gambit, classical defense","rnb1kbnr/pppp1p1p/8/6p1/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq -"
"Grunfeld: exchange, Larsen variation","rnb2rk1/p1pqppbp/1p4p1/8/2BPP3/2P5/P3NPPP/R1BQ1RK1 w - -"
"Two Knights: Max Lange attack, Krause variation *","rnbq1rk1/pp3ppp/2p2n2/2bP2N1/2B1p3/2N5/PPPP1PPP/R1BQK2R w KQ -"
"Ruy Lopez: closed, Basque gambit (North Spanish variation) *","rnbq1rk1/pp3ppp/2p2n2/b2PN3/4p3/P1N5/1PPPBPPP/R1BQK2R w KQ -"
"Petrov: classical attack, Mason variation","rnbq1rk1/ppp1bppp/8/3p4/3Pn3/3B1N2/PPP2PPP/RNBQ1RK1 w - -"
"King's Indian: Zinnowitz variation","rnbq1rk1/ppp1ppbp/3p1np1/6B1/2PPP3/2N2N2/PP3PPP/R2QKB1R b KQ -"
"King's Indian: 6.Be2","rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N2N2/PP2BPPP/R1BQK2R b KQ -"
"King's Indian: Samisch, orthodox, 7.d5","rnbq1rk1/ppp2pbp/3p1np1/3Pp3/2P1P3/2N1BP2/PP4PP/R2QKBNR b KQ -"
"Ruy Lopez: Marshall counter-attack, 11...c6 *","rnbq2k1/pp1p1ppp/1bp5/8/1P1Nr3/P1P5/4BPPP/R1BQ1RK1 b - -"
"Bird: From gambit, Lasker variation","rnbqk1nr/ppp2p1p/3b4/6p1/8/5N2/PPPPP1PP/RNBQKB1R w KQkq -"
"Bishop's opening: Calabrese counter-gambit *","rnbqk1nr/pppp1ppp/8/2b1p3/4PP2/8/PPPP2PP/RNBQKBNR b KQkq -"
"KGA: bishop's gambit, Morphy variation *","rnbqk1nr/pppp2pp/8/4pP2/3b4/5N2/PPP2PPP/RNBQKB1R b KQkq -"
"Benoni: Mikenas variation","rnbqk2r/pp3pbp/3p1np1/2pPP3/5P2/2N5/PP4PP/R1BQKBNR b KQkq -"
"King's Indian: fianchetto variation","rnbqk2r/ppp1ppbp/3p1np1/8/2PP4/2N2NP1/PP2PP1P/R1BQKB1R b KQkq -"
"King's Indian: Kramer system","rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N5/PP2NPPP/R1BQKB1R b KQkq -"
"Sicilian: Canal-Sokolsky attack, 3...Bd7 *","rnbqk2r/pppp1ppp/5n2/4p3/1bP5/3P4/PP1BPPPP/RN1QKBNR b KQkq -"
"Ruy Lopez: Treybal (Bayreuth) variation (exchange var. deferred) *","rnbqk2r/pppp1ppp/5n2/4p3/4P3/P1b2N2/1PPP1PPP/R1BQKB1R w KQkq -"
"Ruy Lopez: fianchetto defense deferred *","rnbqk2r/pppp1ppp/5n2/b3p3/4P3/P1N3P1/1PPP1P1P/R1BQKBNR b KQkq -"
"Two Knights defense: Fegatello attack *","rnbqk2r/pppp1ppp/8/2b5/3NP3/2N5/PPP2nPP/R1BQKB1R w KQkq -"
"Sicilian: Najdorf, 6.Bg5","rnbqkb1r/1p2pppp/p2p1n2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R b KQkq -"
"QGA: classical, 7.Qe2","rnbqkb1r/1p3ppp/p3pn2/2p5/2BP4/4PN2/PP2QPPP/RNB2RK1 b kq -"
"QGA: classical, Geller variation","rnbqkb1r/1p3ppp/p3pn2/2p5/2BPP3/5N2/PP3PPP/RNBQ1RK1 b kq -"
"QGA: classical, Rubinstein variation","rnbqkb1r/1p3ppp/p3pn2/2p5/P1BP4/4PN2/1P3PPP/RNBQ1RK1 b kq -"
"QGD: Semi-Tarrasch, Krause variation","rnbqkb1r/1p3ppp/p4n2/1N1pp1B1/Q1P5/2N5/PP2PPPP/R3KB1R b KQkq -"
"Dutch: Staunton gambit, Nimzovich variation","rnbqkb1r/p1ppp1pp/1p3n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq -"
"English: Caro-Kann defensive system, Bogolyubov variation *","rnbqkb1r/p2ppppp/1p3n2/2p3B1/3P4/2P5/PP2PPPP/RN1QKBNR b KQkq -"
"KGD: classical counter-gambit *","rnbqkb1r/pp1p2pp/2p2n2/4pp2/2B1PP2/3P4/PPP3PP/RNBQK1NR b KQkq -"
"Old Benoni defense","rnbqkb1r/pp1ppppp/5n2/2pP4/8/5N2/PPP1PPPP/RNBQKB1R b KQkq -"
"Sicilian: Andreaschek gambit *","rnbqkb1r/pp3ppp/2p2n2/3Pp3/4P3/8/PP1P1PPP/RNBQKBNR w KQkq -"
"Sicilian: Venice attack","rnbqkb1r/pp3ppp/3p1n2/1B2p3/3NP3/2N5/PPP2PPP/R1BQK2R b KQkq -"
"Sicilian: Scheveningen, 6.Be2","rnbqkb1r/pp3ppp/3ppn2/8/3NP3/2N5/PPP1BPPP/R1BQK2R b KQkq -"
"Robatsch defense: Rossolimo variation *","rnbqkb1r/pp3ppp/5n2/2ppp1B1/8/3P2P1/PPP1PPBP/RN1QK1NR b KQkq -"
"Grunfeld: Spike gambit","rnbqkb1r/ppp1pp1p/5np1/3p4/2PP2P1/2N5/PP2PP1P/R1BQKBNR b KQkq -"
"Alekhine's defense: Balogh variation","rnbqkb1r/ppp1pppp/3p4/3nP3/2BP4/8/PPP2PPP/RNBQK1NR b KQkq -"
"Blackmar-Diemer gambit","rnbqkb1r/ppp1pppp/5n2/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq -"
"Old Indian: Ukrainian variation, 4.Nf3","rnbqkb1r/ppp2ppp/3p1n2/4p3/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq -"
"Philidor: Nimzovich, Sokolsky variation","rnbqkb1r/ppp2ppp/3p4/4P3/4n3/5N2/PPPN1PPP/R1BQKB1R b KQkq -"
"Petrov: Kaufmann attack","rnbqkb1r/ppp2ppp/3p4/8/2P1n3/5N2/PP1P1PPP/RNBQKB1R b KQkq -"
"Philidor: Nimzovich (Jaenisch) variation *","rnbqkb1r/ppp2ppp/5n2/3pp3/4P3/3P1N2/PPP2PPP/RNBQKB1R b KQkq -"
"Philidor: Hanham variation *","rnbqkb1r/ppp2ppp/5n2/3pp3/4P3/3P4/PPPN1PPP/R1BQKBNR b KQkq -"
"Sicilian defense *","rnbqkb1r/ppp2ppp/8/3np3/8/2N1P3/PP1P1PPP/R1BQKBNR b KQkq -"
"Sicilian: Anderssen variation *","rnbqkb1r/ppp2ppp/8/3np3/8/4PN2/PP1P1PPP/RNBQKB1R b KQkq -"
"Petrov: Italian variation","rnbqkb1r/pppp1ppp/5n2/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R b KQkq -"
"Petrov Three Knights game","rnbqkb1r/pppp1ppp/5n2/4p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"Philidor's defense *","rnbqkb1r/pppp1ppp/5n2/4p3/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq -"
"Reti: King's Indian attack, Reti-Smyslov variation","rnbqkb1r/pppppp1p/5np1/8/1P6/5NP1/P1PPPP1P/RNBQKB1R b KQkq -"
"King's Indian: 3.g3","rnbqkb1r/pppppp1p/5np1/8/2PP4/6P1/PP2PP1P/RNBQKBNR b KQkq -"
"King's Indian: London system","rnbqkb1r/pppppp1p/5np1/8/3P1B2/5N2/PPP1PPPP/RN1QKB1R b KQkq -"
"Alekhine's defense: Maroczy variation","rnbqkb1r/pppppppp/5n2/8/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq -"
"Reti: Herrstrom gambit *","rnbqkb1r/pppppppp/5n2/8/6P1/8/PPPPPP1P/RNBQKBNR b KQkq -"
"Alekhine's defense: Samisch attack","rnbqkb1r/pppppppp/8/3nP3/8/2N5/PPPP1PPP/R1BQKBNR b KQkq -"
"QGA: Ericson variation","rnbqkbnr/p1p1pppp/8/1p6/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq -"
"Old Benoni: Franco-Benoni defense","rnbqkbnr/pp1p1ppp/4p3/2pP4/4P3/8/PPP2PPP/RNBQKBNR b KQkq -"
"Sicilian defense","rnbqkbnr/pp1p1ppp/4p3/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"English: symmetrical variation","rnbqkbnr/pp1ppppp/8/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq -"
"English, 1...Nf6 (Anglo-Indian defense) *","rnbqkbnr/pp1ppppp/8/2p5/8/5N2/PPPPPPPP/RNBQKB1R b KQkq -"
"QGD: symmetrical (Austrian) defense *","rnbqkbnr/pp2pppp/8/2pp4/2PP4/8/PP2PPPP/RNBQKBNR b KQkq -"
"Kevitz-Trajkovich defense *","rnbqkbnr/pp2pppp/8/2pp4/8/2N2N2/PPPPPPPP/R1BQKB1R b KQkq -"
"Alekhine's defense: four pawns attack, Planinc variation *","rnbqkbnr/pp4pp/8/2pp1p2/4p1P1/1N1P4/PPP1PP1P/RNBQKB1R b KQkq -"
"Queen's pawn: Charlick (Englund) gambit *","rnbqkbnr/ppp1pppp/8/3p4/4P3/8/PPPP1PPP/RNBQKBNR b KQkq -"
"Queen's gambit accepted","rnbqkbnr/ppp1pppp/8/8/2pP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"French: Paulsen variation","rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq -"
"(Dutch:) Balogh defense *","rnbqkbnr/ppp2ppp/8/3pp3/5P2/3P4/PPP1P1PP/RNBQKBNR b KQkq -"
"French: Labourdonnais variation","rnbqkbnr/pppp1ppp/4p3/8/4PP2/8/PPPP2PP/RNBQKBNR b KQkq -"
"Vienna game","rnbqkbnr/pppp1ppp/8/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq -"
"Fred *","rnbqkbnr/pppp1ppp/8/4p3/5P2/8/PPPPP1PP/RNBQKBNR b KQkq -"
"KGD: classical variation *","rnbqkbnr/pppp2pp/8/4pp2/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq -"
"KGA: bishop's gambit, Lopez-Gianutio counter-gambit","rnbqkbnr/pppp2pp/8/5p2/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq -"
"Bird: Hobbs gambit *","rnbqkbnr/ppppp1pp/8/5p2/6P1/8/PPPPPP1P/RNBQKBNR b KQkq -"
"Gedult's opening","rnbqkbnr/pppppppp/8/8/8/5P2/PPPPP1PP/RNBQKBNR b KQkq -"
"Ruy Lopez: closed, anti-Marshall 8.a4 *","rnbqr1k1/1ppp1ppp/1b3n2/p3p3/1P2P3/P1N2N2/2PPBPPP/R1BQ1RK1 w - -"
"Crab opening","rnbqkbnr/pppp1ppp/8/4p3/P6P/8/1PPPPPP1/RNBQKBNR b KQkq h3"
"Reti-Dutch","rnbqkbnr/ppppp1pp/8/5p2/8/5N2/PPPPPPPP/RNBQKB1R w KQkq f6"
"English: Anglo-Gruenfeld defence","rnbqkb1r/ppp1pppp/5n2/3p4/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq d6"
"French: Tarrasch, open (4.exd5 exd5)","rnbqkbnr/pp3ppp/8/2pp4/3P4/5N2/PPPN1PPP/R1BQKB1R b KQkq -"
"French: Winawer, advance, Russian variation","r1bq1rk1/pp2nppp/2n1p3/2PpP3/1b4Q1/2N5/PPPB1PPP/R3KBNR w KQ -"
"Vienna: Fyfe gambit","r1bqkbnr/pppp1ppp/2n5/4p3/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq d3"
"Scandinavian (centre counter) defence","rnbqkbnr/ppp1pppp/8/3p4/4P3/8/PPPP1PPP/RNBQKBNR w KQkq d6"
"Scandinavian: Mieses-Kotrvc gambit","rnb1kbnr/ppp1pppp/8/q7/1P6/2N5/P1PP1PPP/R1BQKBNR b KQkq b3"
"Pirc-Robatsch","rnbqkb1r/pp2pppp/2pp1n2/8/2BPP3/2N5/PPP2PPP/R1BQK1NR b KQkq -"
"Pirc: bayonet (Mariotti) attack","rnbqk2r/ppp1ppbp/3p1np1/8/3PP2P/2N5/PPP1BPP1/R1BQK1NR b KQkq h3"
"Pirc-Robatsch","rnbqkb1r/pp2pppp/2pp1n2/8/3PP3/2NB4/PPP2PPP/R1BQK1NR b KQkq -"
"Sicilian: closed, Korchnoi variation","rnbqkbnr/pp3ppp/4p3/2pp4/4P3/2N3P1/PPPP1P1P/R1BQKBNR w KQkq d6"
"Ruy Lopez: classical defence, Zaitsev variation","r1bqk1nr/pppp1ppp/8/1Bb1p3/1P1nP3/5N2/P1PP1PPP/RNBQ1RK1 b kq b3"
"Ruy Lopez: Schliemann defence deferred","r1bqkbnr/1ppp2pp/p1n5/4pp2/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq f6"
"Ruy Lopez: closed, centre attack","r1bqk2r/1pppbppp/p1n2n2/4p3/B2PP3/5N2/PPP2PPP/RNBQ1RK1 b kq d3"
"QGD: semi-Tarrasch, modern line","r1bq1rk1/pp2bppp/2n1p3/2pn4/3P4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"Neo-Gruenfeld (Kemeri) defence","rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq d6"
"Catalan: open (5.Nf3 c5)","r1bqkb1r/pp3ppp/2n1pn2/2p5/2pP4/5NP1/PP2PPBP/RNBQ1RK1 w kq -"
"Nimzo-Indian: Spielmann variation","rnbqk2r/pp1p1ppp/4pn2/2b5/2P5/1QN2N2/PP2PPPP/R1B1KB1R b KQkq -"
"King's Indian: fianchetto, classical variation","r1bq1rk1/pppn1pbp/3p1np1/4p3/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - e6"
"Sicilian: Scheveningen, classical variation with ...Qc7 and ...Nc6","r1b1kb1r/1pq2ppp/p1nppn2/8/3NPP2/2N5/PPP1B1PP/R1BQ1RK1 w kq -"
"Nimzo-Indian: Spielmann, 4...c5, 5.dc Nc6 *","r1b1kbnr/pp2pppp/1qn5/1Bp5/2p5/2N1PN2/PP1P1PPP/R1BQK2R b KQkq -"
"Novosibirsk opening *","r1b1kbnr/ppp1pppp/2n5/7q/8/2N5/PP1PPPPP/R1BQKBNR w KQkq -"
"Scotch: Sea-cadet mate *","r1bB1rk1/pp3ppp/8/4p3/3nn3/3P4/PPP1KbPP/R2Q1BNR w - -"
"Sicilian: Scheveningen, classical, Maroczy system *","r1bq1r1k/1pp1b1pp/2n5/p2npp2/8/P1NPPN2/1PQ1BPPP/R1B1K2R w KQ -"
"Ruy Lopez: closed, 9.d4","r1bq1rk1/2p1bppp/p1np1n2/1p2p3/3PP3/1BP2N2/PP3PPP/RNBQR1K1 b - -"
"Catalan: closed, Zagoryansky variation","r1bq1rk1/p2nbppp/1pp1pn2/3p4/P1PP4/5NP1/1PQ1PPBP/RNBR2K1 b - -"
"French: Steinitz, Brodsky-Jones variation","r1bq1rk1/pp1n2pp/2n1pp2/2bpP3/5PQ1/P1N2N2/1PP3PP/R1B1KB1R w KQ -"
"QGD: Tarrasch, Prague variation, 9.Bg5","r1bq1rk1/pp2bppp/2n2n2/2pp2B1/3P4/2N2NP1/PP2PPBP/R2Q1RK1 b - -"
"Sicilian, Szen, hedgehog variation *","r1bq1rk1/pp2bppp/n1n5/2p1p3/8/PPNPPN2/4BPPP/R1BQ1RK1 b - -"
"King's Indian: fianchetto, lesser Simagin (Spassky) variation *","r1bq1rk1/pp2ppbp/2n2np1/2pp4/5B2/2NP1NP1/PPP1PPBP/R2Q1RK1 b - -"
"King's Indian: Kazakh variation","r1bq1rk1/ppp1ppbp/n2p1np1/8/2PPP3/2N2N2/PP2BPPP/R1BQK2R w KQ -"
"English: symmetrical, Botvinnik system *","r1bqk1nr/pp1p1pbp/2n3p1/2p1p3/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq -"
"Modern defense: Averbakh system, Kotov variation","r1bqk1nr/ppp1ppbp/2np2p1/8/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq -"
"English: closed system","r1bqk1nr/ppp2pbp/2np2p1/4p3/2P5/2NP2P1/PP2PPBP/R1BQK1NR w KQkq -"
"Ruy Lopez: classical (Cordel) defense","r1bqk1nr/pppp1ppp/2n5/1Bb1p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Ruy Lopez: Cordel gambit","r1bqk1nr/pppp2pp/2n5/1Bb1pp2/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq -"
"Giuoco Pianissimo: Dubois variation","r1bqk1nr/pppp2pp/2n5/2b1p1N1/2B1Pp2/3P4/PPP2PPP/RNBQK2R w KQkq -"
"Ruy Lopez: Worrall attack, solid line","r1bqk2r/2p1bppp/p1np1n2/1p2p3/4P3/1B3N2/PPPPQPPP/RNB2RK1 w kq -"
"Ruy Lopez: Noah's ark trap","r1bqk2r/4bppp/p2p1n2/1pp5/3QP3/1B6/PPP2PPP/RNB1R1K1 w kq -"
"QGD semi-Slav: Meran, Blumenfeld variation *","r1bqk2r/pp3ppp/3b1n2/3P4/1n2p3/P3PN2/3N1PPP/R1BQKB1R w KQkq -"
"Philidor: Hanham, Schlechter variation *","r1bqk2r/ppp2ppp/2n2n2/2bpp3/4P3/2PP4/PP1N1PPP/R1BQKBNR w KQkq -"
"Sicilian: Venice attack *","r1bqk2r/ppp2ppp/2n5/3np3/1b2P3/3P1N2/PP3PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: Berlin defense, Beverwijk variation","r1bqk2r/pppp1ppp/2n2n2/1Bb1p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 w kq -"
"QGD Slav: Czech defense *","r1bqkb1r/1p2pppp/2n2n2/p1Pp4/5B2/2P2N2/PP2PPPP/RN1QKB1R b KQkq -"
"Four Knights: Gunsberg variation *","r1bqkb1r/1ppp1ppp/p1n2n2/4p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"Ruy Lopez: open, Schlechter defense","r1bqkb1r/2p2ppp/p7/1p1pp3/P2nn3/1B3N2/1PP2PPP/RNBQ1RK1 w kq -"
"Two Knights defense: Blackburne variation","r1bqkb1r/p4ppp/5n2/np2p1N1/8/5Q2/PPPP1PPP/RNB1K2R w KQkq -"
"QGD: Albin counter-gambit, Janowski variation *","r1bqkb1r/pp1npppp/5n2/2pP4/4p3/2N2P2/PPP3PP/R1BQKBNR b KQkq -"
"Sicilian: 2.c3, Heidenfeld variation *","r1bqkb1r/pp1p1ppp/n1p2n2/8/2PNp3/2N5/PP1PPPPP/R1BQKB1R w KQkq -"
"English opening *","r1bqkb1r/pp1ppppp/2n2n2/2p5/4P3/3P4/PPP2PPP/RNBQKBNR w KQkq -"
"Sicilian: Sozin, Leonhardt variation","r1bqkb1r/pp3ppp/2nppn2/8/2BNP3/2N5/PPP2PPP/R1BQK2R w KQkq -"
"Sicilian: Najdorf, Adams attack *","r1bqkb1r/ppp2pp1/2n4p/3np3/8/P2P1N2/1P2PPPP/RNBQKB1R w KQkq -"
"French: exchange, Bogolyubov variation","r1bqkb1r/ppp2ppp/2n2n2/3p2B1/3P4/2N5/PPP2PPP/R2QKBNR w KQkq -"
"English: Mikenas-Carls, Kevitz variation","r1bqkb1r/pppp1ppp/2n1pn2/8/2P1P3/2N5/PP1P1PPP/R1BQKBNR w KQkq -"
"Four Knights game","r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"Four Knights: Rubinstein counter-gambit","r1bqkb1r/pppp1ppp/5n2/1B2p3/3nP3/2N2N2/PPPP1PPP/R1BQK2R w KQkq -"
"Battambang opening *","r1bqkbnr/1ppppppp/p1n5/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Ruy Lopez: Schliemann defense","r1bqkbnr/pppp2pp/2n5/1B2pp2/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"King's Indian: orthodox, Aronin-Taimanov, main line *","r1bqnrk1/pp2b1pp/2n2p2/2p1p3/3pPP2/3P2P1/PPPNN1BP/R1BQ1RK1 b - -"
"Sicilian: Dragon, classical, Spielmann variation","r2q1rk1/pp2ppbp/3p1np1/n4P2/2b1P3/1NNBB3/PPP3PP/R2Q1RK1 b - -"
"Sicilian: Dragon, classical, Alekhine variation *","r2q1rk1/ppp1bppp/1nn1b3/4p3/P7/2NP1NP1/1P2PPBP/R1BQ1RK1 b - -"
"Sicilian: closed, 6.Be3 *","r2qk1nr/ppp2pbp/2npb1p1/4p3/2P5/2NP2P1/PP2PPBP/R1BQK1NR w KQkq -"
"QGA: classical, Smyslov variation","r2qk2r/1b1n1ppp/p2bpn2/1pp5/3P4/1BN1PN2/PP2QPPP/R1BR2K1 w kq -"
"QGD: Semi-Tarrasch defense, Pillsbury variation *","r2qkb1r/pp2pppp/2n2n2/2pp4/2PP2b1/4PN2/PP3PPP/RNBQKB1R w KQkq -"
"King's Indian: Zinnowitz variation *","r2qkb1r/pp3ppp/2n2n2/2ppp3/6b1/3P1NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"Pirc: Austrian attack, 6.Be3 *","r2qkb1r/ppp3pp/2n1bn2/3ppp2/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"QGD: exchange, positional line *","r2qkbnr/pp2pppp/2n5/3p4/3P2b1/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"French: classical, Alapin variation *","r2qkbnr/ppp2ppp/8/3p4/1n1Pp3/4P3/PPPNQPPP/RNB1K2R w KQkq -"
"QGD Slav: Carlsbad variation","r3kb1r/ppqn1ppp/2p2n2/4pb2/P1NP4/2N3P1/1P2PP1P/R1BQKB1R w KQkq -"
"Sicilian: Scheveningen, classical main line *","r3qrk1/ppp1b1pp/2n1b3/3npp2/8/P1NPPN2/1PQ1BPPP/R1B2RK1 b - -"
"Alekhine's defense: modern, Flohr variation","rn1qkb1r/pp2pppp/2pp4/3nP3/3P2b1/5N2/PPP1BPPP/RNBQK2R w KQkq -"
"Grob: Fritz gambit","rn1qkbnr/ppp1pppp/8/3p4/2P3b1/8/PP1PPPBP/RNBQK1NR b KQkq -"
"KGD: Falkbeer, main line, 7...Bf5 *","rnb1kb1r/ppp1q1pp/5n2/4Np2/2Bp1B2/8/PPP2PPP/RN1QK2R b KQkq -"
"Caro-Kann: Edinburgh variation","rnb1kbnr/pp2pppp/1qp5/3p4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq -"
"French: Chigorin variation *","rnb1kbnr/ppppqppp/8/4p3/8/4P3/PPPP1PPP/RNBQKBNR w KQkq -"
"Ruy Lopez: Worrall attack *","rnb2rk1/ppppqppp/5n2/b3p3/4P3/P1N2N2/1PPPBPPP/R1BQK2R w KQ -"
"KGA: Allgaier, Thorold variation","rnbq1bnr/pppp1k2/7p/8/3PPppP/8/PPP3P1/RNBQKB1R b KQ -"
"KGA: bishop's gambit, Boden defense *","rnbq1knr/pppp2pp/8/2b1pP1Q/8/2N5/PPPP1PPP/R1B1KBNR b KQ -"
"Ruy Lopez: closed, Breyer, 10.d4","rnbq1rk1/2p1bppp/p2p1n2/1p2p3/3PP3/1BP2N1P/PP3PP1/RNBQR1K1 b - -"
"Evans gambit *","rnbq1rk1/p2p1ppp/2p2n2/2b1p3/B3P3/2NP4/PPP2PPP/R1BQK1NR b KQ -"
"Evans gambit: compromised defense *","rnbq1rk1/p4ppp/2P2n2/2b1p3/B7/2N5/PPPP1PPP/R1BQK1NR b KQ -"
"Sicilian: Dragon, Yugoslav attack, 7...O-O","rnbq1rk1/pp2ppbp/3p1np1/8/3NP3/2N1BP2/PPP3PP/R2QKB1R w KQ -"
"Neo-Grunfeld, 6.cd Nxd5, 7.O-O Nb6 *","rnbq1rk1/pp2ppbp/5np1/3p4/8/1N4P1/PPP1PPBP/RNBQ1RK1 b - -"
"Neo-Grunfeld, 6.cd Nxd5, 7.O-O c5, 8.dc *","rnbq1rk1/pp2ppbp/5np1/8/2pN4/6P1/PP2PPBP/RNBQ1RK1 w - -"
"Benoni: classical without 9.O-O","rnbq1rk1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQK2R w KQ -"
"QGA: classical, Steinitz variation *","rnbq1rk1/pp3ppp/4pn2/2bP4/8/4PN2/PP3PPP/RNBQKB1R b KQ -"
"QGA: classical variation, 6.O-O *","rnbq1rk1/pp3ppp/4pn2/2bp4/2P5/4PN2/PP3PPP/RNBQKB1R w KQ -"
"Philidor: Hanham, Berger variation *","rnbq1rk1/pp4pp/2p5/2bppp2/3PP1n1/2P4N/PP1NBPPP/R1BQ1RK1 b - -"
"Sicilian: Acton extension","rnbqk1nr/pp1ppp1p/6pb/2p5/2P1P3/5N2/PP1P1PPP/RNBQKB1R w KQkq -"
"Bishop's opening *","rnbqk1nr/pppp1ppp/8/2b1p3/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Evans gambit declined, Hirschbach variation *","rnbqk2r/p1pp1ppp/8/2b1p3/Np2n1Q1/1B6/PPPP1PPP/R1B1K1NR b KQkq -"
"Evans gambit *","rnbqk2r/p4ppp/2p2n2/2bpp3/B3P3/2NP4/PPP2PPP/R1BQK1NR b KQkq -"
"Sicilian: Pin, Jaffe variation","rnbqk2r/pp1p1ppp/5n2/4p3/1b1NP3/2NB4/PPP2PPP/R1BQK2R w KQkq -"
"Nimzo-Indian: Samisch, Keres variation","rnbqk2r/pp3ppp/4p3/2Pn4/8/P1P2P2/4P1PP/R1BQKBNR b KQkq -"
"Scotch gambit: Benima defense *","rnbqk2r/ppp2ppp/5n2/2bPp3/8/2N5/PPPPBPPP/R1BQK1NR b KQkq -"
"Latvian gambit, 3.Bc4 *","rnbqk2r/pppp1ppp/5n2/2b1p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq -"
"Sicilian: Nimzovich-Rossolimo attack (without ...d6) *","rnbqk2r/pppp1ppp/5n2/4p3/1bP5/2N5/PP1PPPPP/R1BQKBNR w KQkq -"
"KGA: Cunningham, Euwe defense *","rnbqk2r/pppp2pp/5n2/2b1pP2/8/5N2/PPPPBPPP/RNBQK2R b KQkq -"
"Dutch-Indian, Alekhine variation","rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6P1/PP1BPPBP/RN1QK1NR w KQkq -"
"Benko gambit: Zaitsev system","rnbqkb1r/3ppppp/p4n2/1PpP4/8/2N5/PP2PPPP/R1BQKBNR b KQkq -"
"French: Tarrasch, Botvinnik variation","rnbqkb1r/p2n1ppp/1p2p3/2ppP3/3P4/2PB4/PP1N1PPP/R1BQK1NR w KQkq -"
"KGA: Abbazia defense, Botvinnik variation","rnbqkb1r/p4ppp/2p5/3n4/2B2p2/5N2/PPPP2PP/RNBQK2R w KQkq -"
"English: symmetrical variation","rnbqkb1r/pp1p1ppp/4pn2/8/2PN4/8/PP2PPPP/RNBQKB1R w KQkq -"
"Petrov: Kaufmann attack *","rnbqkb1r/pp1p1ppp/5n2/2p1N3/8/3P4/PPP2PPP/RNBQKB1R w KQkq -"
"English opening *","rnbqkb1r/pp1ppppp/5n2/2p5/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"QGD Slav\Grunfeld: Schlechter variation","rnbqkb1r/pp2pp1p/2p2np1/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq -"
"QGA: Ericson variation *","rnbqkb1r/pp2pppp/5n2/2Pp4/1P6/8/P1P1PPPP/RNBQKBNR b KQkq -"
"QGA: Haberditz variation *","rnbqkb1r/pp3ppp/4pn2/2Pp4/1P6/P7/2P1PPPP/RNBQKBNR b KQkq -"
"QGA, Smyslov variation *","rnbqkb1r/pp3ppp/4pn2/2Pp4/8/5NP1/PPP1PP1P/RNBQKB1R b KQkq -"
"Alekhine's defense: two pawns' attack, Mikenas variation","rnbqkb1r/ppp2ppp/3pp3/2PnP3/2B5/2N5/PP1P1PPP/R1BQK1NR w KQkq -"
"French: Tarrasch, closed variation","rnbqkb1r/ppp2ppp/4pn2/3p4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq -"
"KGD: Falkbeer, Rubinstein variation","rnbqkb1r/ppp2ppp/5n2/3P4/4pP2/2N5/PPPPQ1PP/R1B1KBNR b KQkq -"
"Scotch: Mieses variation *","rnbqkb1r/ppp2ppp/8/8/4p3/2P2N2/P1PP1PPP/R1BQKB1R w KQkq -"
"Benko's opening: reversed Alekhine *","rnbqkb1r/pppppp1p/5np1/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Dory defense","rnbqkb1r/pppppppp/8/8/3Pn3/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"Polish defense","rnbqkbnr/p1pppppp/8/1p6/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Czech Benoni defense *","rnbqkbnr/pp2pppp/8/2p5/2PpP3/5N2/PP1P1PPP/RNBQKB1R b KQkq e3"
"Benko gambit half accepted *","rnbqkbnr/pp2pppp/8/8/1pPp4/P4N2/3PPPPP/RNBQKB1R b KQkq -"
"QGD Slav: Winawer counter-gambit","rnbqkbnr/pp3ppp/2p5/3pp3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"QGD: Tarrasch defense","rnbqkbnr/pp3ppp/4p3/2pp4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"Budapest: Alekhine variation, Balogh gambit *","rnbqkbnr/pp3ppp/8/2p1p1N1/4p3/3P4/PPP2PPP/RNBQKB1R b KQkq -"
"Queen's pawn: Bronstein gambit *","rnbqkbnr/ppp1pp1p/8/3p2p1/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"Reti opening","rnbqkbnr/ppp1pppp/8/3p4/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"Caro-Kann: closed (Breyer) variation *","rnbqkbnr/ppp2ppp/3p4/4p3/8/2P5/PP1PPPPP/RNBQKBNR w KQkq -"
"King's knight's gambit","rnbqkbnr/pppp1p1p/8/6p1/4Pp1P/5N2/PPPP2P1/RNBQKB1R b KQkq -"
"French defense","rnbqkbnr/pppp1ppp/4p3/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Scandinavian defense *","rnbqkbnr/pppp1ppp/8/8/3p4/5N2/PPP1PPPP/RNBQKB1R b KQkq -"
"KGD: Nimzovich counter-gambit *","rnbqkbnr/pppp2pp/8/5p2/3pP3/2P5/PP3PPP/RNBQKBNR b KQkq -"
"English opening","rnbqkbnr/pppppp1p/6p1/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"Lasker simul special","rnbqkbnr/ppppppp1/8/7p/8/6P1/PPPPPP1P/RNBQKBNR w KQkq -"
"Latvian: Behting variation *","rnbqkr2/pppp1pQp/8/2b1P3/3P4/5N2/PPP3PP/RNB1KB1n b KQq -"
"Ruy Lopez: closed, Kholmov variation *","rnbqr1k1/pp1p1pp1/1bp2n1p/4p3/1P2P3/P1NPBN2/2P1BPPP/R2Q1RK1 b - -"
"Bird's opening: Williams gambit","rnbqkbnr/ppp1pppp/8/3p4/4PP2/8/PPPP2PP/RNBQKBNR b KQkq e3"
"English: Caro-Kann defensive system","rn1qkb1r/pp2pppp/2p2n2/3p4/2P3b1/5NP1/PP1PPPBP/RNBQ1RK1 b kq c3"
"English: symmetrical, hedgehog","rn1q1rk1/pb2bppp/1p2pn2/2pp4/2P5/1PN1PNP1/PB1P1PBP/R2Q1RK1 b - -"
"English: Mikenas-Carls, Sicilian variation","rnbqkb1r/pp1p1ppp/4pn2/2p5/2P1P3/2N5/PP1P1PPP/R1BQKBNR w KQkq c6"
"Old Benoni defence","rnbqkbnr/pp1ppppp/8/2p5/3P4/8/PPP1PPPP/RNBQKBNR w KQkq c6"
"Benko gambit (4.Nf3)","rn1qkb1r/pb1ppppp/5n2/1ppP4/2P5/5N2/PP2PPPP/RNBQKB1R w KQkq -"
"Dutch: Staunton gambit","rnbqkbnr/ppppp1pp/8/5p2/3PP3/8/PPP2PPP/RNBQKBNR b KQkq e3"
"Dutch: Staunton gambit, Alekhine variation","rnbqkb1r/ppppp2p/5np1/6B1/3Pp2P/2N5/PPP2PP1/R2QKBNR b KQkq h3"
"Bishop's opening: Burger attack","rnbqkb1r/pppp1ppp/5n2/4p3/2B1P1P1/8/PPPP1P1P/RNBQK1NR b KQkq g3"
"KGD: Mafia defence","rnbqkbnr/pp1p1ppp/8/2p1p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq c6"
"KGA: Pawn's gambit (Stamma gambit)","rnbqkbnr/pppp1ppp/8/8/4Pp1P/8/PPPP2P1/RNBQKBNR b KQkq h3"
"Pirc defence (3.Bd3)","r1bq1rk1/ppp1ppbp/2np1np1/8/3PP3/2PB1N2/PP3PPP/RNBQR1K1 b - -"
"Caro-Kann: Panov-Botvinnik attack","rnbqkbnr/pp2pppp/8/3p4/2PP4/8/PP3PPP/RNBQKBNR b KQkq c3"
"Sicilian: closed (6.Ne2 e5) Botvinnik","r1bqk1nr/pp3pbp/2np2p1/2p1p3/4P3/2NP2P1/PPP1NPBP/R1BQK2R w KQkq e6"
"Sicilian: Nimzovich-Rossolimo attack, Zagrebelny variation","r1b1kb1r/1pqp1ppp/p1N1p3/8/4P3/2N5/PPP2PPP/R1BQ1RK1 b kq -"
"Evans gambit: Leonhardt variation","r1bqk1nr/p1pp1ppp/2n5/bp2p3/2BPP3/2P2N2/P4PPP/RNBQK2R w KQkq b6"
"Ruy Lopez: Morphy defence, Duras variation","r1bqkb1r/1pp2ppp/p1np1n2/4p3/B1P1P3/3P1N2/PP3PPP/RNBQK2R b KQkq c3"
"QGD: symmetrical (Austrian) defence","rnbqkbnr/pp2pppp/8/2pp4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq c6"
"QGD: exchange variation","rnbqk2r/ppp1bppp/5n2/3p4/3P1B2/2N5/PP2PPPP/R2QKBNR w KQkq -"
"Gruenfeld (with Bf4 e3)","rnbq1rk1/pp2ppbp/2p2np1/3p4/2PP1B2/2N1PN2/PP3PPP/2RQKB1R b K -"
"Gruenfeld (Qb3)","rnb2rk1/pp2ppbp/2p2np1/q2p4/2PP1B2/1QN1PN2/PP3PPP/R3KB1R w KQ -"
"Catalan opening","rnbqk2r/pp2bppp/2p1pn2/3p4/2PP4/5NP1/PP1BPPBP/RN1QK2R w KQkq -"
"Nimzo-Indian: classical, Noa variation, main line (7.Qc2)","rnbqk2r/pp3ppp/4p3/2pp4/2PPn3/P7/1PQ1PPPP/R1B1KBNR w KQkq c6"
"Nimzo-Indian: 4.e3 c5","rnbqk2r/pp1p1ppp/4pn2/2p5/1bPP4/2N1P3/PP3PPP/R1BQKBNR w KQkq c6"
"King's Indian: Averbakh (6...c5)","rnbq1rk1/pp2ppbp/3p1np1/2p3B1/2PPP3/2N5/PP2BPPP/R2QK1NR w KQ c6"
"King's Indian: orthodox, Aronin-Taimanov, main line","r1bq1rk1/pppnn1bp/3p2p1/3Ppp2/2P1P3/2NN1P2/PP2B1PP/R1BQ1RK1 b - -"
"QGD: Petrosian variation *","2rq1rk1/pp3ppp/2n1pn2/2bp4/8/2P1PB1P/PP1N1PP1/R1BQ1RK1 w - -"
"Vienna: `Frankenstein-Dracula' variation","N1bk1b1r/p2pq2p/1pnn2p1/3Qpp2/8/1B6/PPPP1PPP/R1B1K1NR w KQ -"
"Evans gambit: Levenfish variation","r1b1k1nr/pppq1ppp/1b6/n3N3/2B1P3/BQP5/P4PPP/RN3RK1 b kq -"
"QGD: Cambridge Springs defense, Bogolyubov variation","r1b1k2r/pp1n1ppp/2p1pn2/q2p2B1/1bPP4/2N1P3/PPQN1PPP/R3KB1R b KQkq -"
"QGD: Cambridge Springs defense, Rubinstein variation","r1b1kb1r/pp1n1ppp/2p1pn2/q5B1/2pP4/2N1P3/PP1N1PPP/R2QKB1R w KQkq -"
"Grunfeld: Russian, Byrne (Simagin) variation *","r1b1kb1r/pp3ppp/2n2n2/2qpp3/8/2N2NP1/PPP1PPBP/R1BQ1RK1 b kq -"
"QGD Slav: Dutch variation, main line *","r1b2rk1/1p2qppp/2n1pn2/pBbp4/5B2/2P1PN2/PP3PPP/RN1Q1RK1 w - -"
"KGA: bishop's gambit, Grimm attack *","r1bq1knr/ppp3pp/2n5/2bp1P1Q/4p1P1/3P4/PPP2PBP/RNB1K1NR w KQ -"
"QGD: Orthodox defense, Swiss, Karlsbad variation","r1bq1rk1/1ppnbppp/p3pn2/3P2B1/3P4/2N1PN2/PP3PPP/2RQKB1R b K -"
"Ruy Lopez: Marshall, main line, 12.d2d4","r1bq1rk1/4bppp/p1p5/1p1nR3/3P4/1BP5/PP3PPP/RNBQ2K1 b - -"
"English: symmetrical, main line with d4 *","r1bq1rk1/pp2ppbp/2n2np1/2pp4/2P5/2N2NP1/PP1PPPBP/R1BQ1RK1 w - -"
"Four Knights: Bardeleben variation","r1bq1rk1/pppp1ppp/2n2n2/1B2P3/1b1P1P2/2N5/PPP3PP/R1BQ1RK1 w - -"
"English: closed system *","r1bqk1nr/pp1pppbp/2n3p1/2p5/4P3/2N3P1/PPPP1PBP/R1BQK1NR b KQkq -"
"Sicilian: Taimanov, American attack","r1bqk2r/pp1p1ppp/2nNpn2/8/1b2P3/2N5/PPP2PPP/R1BQKB1R b KQkq -"
"King's Indian: classical variation *","r1bqk2r/pp2bppp/2n2n2/2ppp3/4P3/3P1NP1/PPP2PBP/RNBQ1RK1 b kq -"
"Sicilian: Dragon, classical, Nottingham variation","r1bqk2r/pp2ppbp/2np1np1/8/4P3/1NN1B3/PPP1BPPP/R2QK2R b KQkq -"
"QGD semi-Slav: Meran, old main line","r1bqkb1r/3n1ppp/p3pn2/1pp1P3/3P4/2NB1N2/PP3PPP/R1BQK2R b KQkq -"
"French: Tarrasch, closed variation, main line","r1bqkb1r/pp1n1ppp/2n1p3/3pP3/3P4/3B4/PP1NNPPP/R1BQK2R b KQkq -"
"QGD Slav *","r1bqkb1r/pp1n1ppp/4pn2/2pp4/3P4/2P1PN2/PP1N1PPP/R1BQKB1R b KQkq -"
"QGD Slav: Amsterdam variation *","r1bqkb1r/pp3ppp/2n1p3/3p4/3PnB2/4P3/PP1N1PPP/RN1QKB1R b KQkq -"
"QGD semi-Slav: accelerated Meran (Alekhine variation) *","r1bqkb1r/pp3ppp/2n1pn2/2pp4/3P4/P1P1PN2/1P3PPP/RNBQKB1R b KQkq -"
"QGD Slav: Slav gambit *","r1bqkb1r/pp3ppp/2n2n2/2Ppp3/8/2P2N2/PP2PPPP/RNBQKB1R w KQkq -"
"Sicilian: Nimzovich-Rubinstein; Rubinstein counter-gambit *","r1bqkb1r/ppp2ppp/5n2/3p4/2PPp3/2N5/PP1P1PPP/R1BQKB1R b KQkq -"
"Vienna: Pierce gambit *","r1bqkb1r/ppp3pp/2n2n2/3ppP2/6P1/2N5/PPPP1P1P/R1BQKBNR w KQkq -"
"Pirc: Austrian attack *","r1bqkb1r/ppp3pp/2n2n2/3ppp2/8/3P1NP1/PPP1PPBP/RNBQ1RK1 b kq -"
"Sicilian: Dragon, Levenfish; Flohr variation *","r1bqkb1r/ppp3pp/2n5/3npp2/8/3P1NP1/PP1NPP1P/R1BQKB1R b KQkq -"
"QGD","r1bqkb1r/pppn1ppp/4pn2/3p2B1/2PP4/2N1P3/PP3PPP/R2QKBNR b KQkq -"
"Four Knights: Italian variation","r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"English: Four Knights, 4.e3","r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N1PN2/PP1P1PPP/R1BQKB1R b KQkq -"
"Ruy Lopez: modern Steinitz defense, Three Knights variation","r1bqkbnr/1pp2ppp/p1np4/4p3/B3P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"French: Winawer, advance, 6...Ne7 *","r1bqkbnr/2p2ppp/p1p5/3p4/2PPp3/4P3/PP2NPPP/RNBQK2R b KQkq -"
"English: Bremen system, Keres variation *","r1bqkbnr/pp1ppp1p/2n3p1/2p5/4P3/2P2N2/PP1P1PPP/RNBQKB1R b KQkq -"
"Sicilian: accelerated fianchetto, Maroczy bind","r1bqkbnr/pp1ppp1p/2n3p1/8/2PNP3/8/PP3PPP/RNBQKB1R b KQkq -"
"English, Kramnik-Shirov counterattack *","r1bqkbnr/pp1ppppp/2n5/1Bp5/4P3/8/PPPP1PPP/RNBQK1NR b KQkq -"
"English opening *","r1bqkbnr/pp1ppppp/2n5/2p5/8/4PN2/PPPP1PPP/RNBQKB1R b KQkq -"
"Nimzo-Indian: 4.e3 O-O *","r1bqkbnr/pp3ppp/2n1p3/1Bpp4/8/4PN2/PPPP1PPP/RNBQ1RK1 b kq -"
"Pirc defense *","r1bqkbnr/ppp2ppp/2n5/3pp3/8/3P1NP1/PPP1PP1P/RNBQKB1R b KQkq -"
"French: Tarrasch, open variation *","r1bqkbnr/pppn1ppp/8/3pp3/2PP4/4P3/PP3PPP/RNBQKBNR b KQkq -"
"KGA: Blachly gambit","r1bqkbnr/pppp1p1p/2n5/6p1/2B1Pp2/5N2/PPPP2PP/RNBQK2R w KQkq -"
"KGA: Muzio gambit, Holloway defense","r1bqkbnr/pppp1p1p/2n5/8/2B1Pp2/5Q2/PPPP2PP/RNB2RK1 w kq -"
"Evans gambit: Mayet defense","r1bqkbnr/pppp1ppp/2n5/4p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq -"
"Konstantinopolsky opening","r1bqkbnr/pppp1ppp/2n5/4p3/4P3/5NP1/PPPP1P1P/RNBQKB1R b KQkq -"
"Bird's opening, Swiss gambit *","r1bqkbnr/pppp3p/2n5/4Ppp1/8/5N2/PPPPP1PP/RNBQKB1R w KQkq -"
"King's Indian: orthodox, Aronin-Taimanov, Benko attack *","r1bqnrk1/pp2b2p/2n2p2/2p1p1p1/3pPP2/3P2P1/PPPNN1BP/R1BQ1RK1 w - -"
"King's Indian: orthodox, Aronin-Taimanov, 9.Ne1 *","r1bqnrk1/pp2bppp/2n5/2p1p3/3pP3/3P1NP1/PPP1NPBP/R1BQ1RK1 w - -"
"Benoni: fianchetto, 11...Re8","r1bqr1k1/1p1n1pbp/p2p1np1/2pP4/P7/2N3P1/1P1NPPBP/R1BQ1RK1 w - -"
"Reti: King's Indian attack, French variation *","r1bqr1k1/pppn1pbp/3p1np1/4p3/2PP4/2N1PN2/PP2BPPP/R1BQ1RK1 w - -"
"QGA: classical, Flohr variation *","r1br2k1/ppq2ppp/2n1pn2/2P5/1P1p4/P3PN2/1BQ2PPP/R3KB1R b KQ -"
"Four Knights: symmetrical, Capablanca variation","r2n1rk1/ppp1qppp/3p1n2/1B2p1B1/3PP1b1/2P2N2/P1P2PPP/R2QR1K1 w - -"
"QGD: Tarrasch, Stoltz variation","r2q1rk1/p3bppp/1pn1bn2/2pp2B1/3P4/2N2NP1/PP2PPBP/2RQ1RK1 w - -"
"King's Indian: fianchetto, lesser Simagin (Spassky) variation","r2q1rk1/ppp1ppbp/2np1np1/5b2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"KGD: classical, Svenonius variation","r2qk2r/ppp2ppp/2np1n2/2b5/2B1Pp2/2NP1Q1P/PPP3P1/R1B1K2R w KQkq -"
"Ruy Lopez: open, Bernstein variation","r2qkb1r/2p2ppp/p1n1b3/1p1pP3/4n3/1B3N2/PPPN1PPP/R1BQ1RK1 b kq -"
"QGD: Orthodox defense *","r2qkb1r/pp3ppp/2n1pn2/2pp4/3P2b1/4PN2/PPPNBPPP/R1BQ1RK1 b kq -"
"QGD semi-Slav: Botvinnik system (anti-Meran) *","r2qkb1r/pp3ppp/2n2n2/2Ppp3/6b1/2P1PN2/PP3PPP/RNBQKB1R w KQkq -"
"Sicilian: Najdorf, 7...Be7 *","r2qkb1r/ppp3pp/2n5/3npp2/6b1/P2PPN2/1P2BPPP/RNBQK2R b KQkq -"
"QGD: 4.Bg5 Nbd7 *","r2qkbnr/pp2pppp/2n5/2pp4/3P2b1/4PN2/PPPN1PPP/R1BQKB1R b KQkq -"
"King's Indian: Samisch, orthodox variation *","r2qkbnr/pp4pp/2n1bp2/2ppp3/4P3/3P1NP1/PPP2PBP/RNBQ1RK1 b kq -"
"French: Albin-Alekhine-Chatard attack, Maroczy variation *","r2qkbnr/ppp2pp1/2n5/3p3p/3Pp1b1/P3P3/1PPNBPPP/RNBQK2R b KQkq -"
"Dutch: stonewall: Chekhover variation *","r4rk1/ppq1ppbp/2n2np1/2pp4/3P1Pb1/2P1PN2/PP2B1PP/RNB1QRK1 w - -"
"Queen's Indian: Averbakh variation *","rn1q1rk1/pb3ppp/1p1bp3/2pn4/8/1P2PN2/PB1PBPPP/RN1Q1RK1 w - -"
"Scotch: Paulsen, Gunsberg defense *","rn1qk2r/pp3ppp/2p1b3/3np3/1bB5/5Q2/PPPPNPPP/R1BNK2R b KQkq -"
"Queen's Indian: Marienbad system, Berg variation","rn1qkb1r/pb1ppppp/1p3n2/8/2PQ4/5NP1/PP2PPBP/RNB1K2R b KQkq -"
"Bogo-Indian defense, Nimzovich variation *","rn1qkb1r/pp1bpppp/5n2/1Bpp4/8/4PN2/PPPPQPPP/RNB1K2R b KQkq -"
"Ruy Lopez: exchange, Alekhine variation *","rnb1k2r/ppp2ppp/8/3np3/8/P1P5/1PPB1PPP/R3KBNR b KQkq -"
"KGA: Philidor gambit, Schultz variation *","rnb1k2r/ppp3p1/3q1n2/2bppP1p/6P1/3P3P/PPP2PB1/RNBQK1NR w KQkq -"
"French: classical, Pollock variation","rnb1k2r/pppnqppp/4p3/3pP3/3P2Q1/2N5/PPP2PPP/R3KBNR b KQkq -"
"Two Knights defense: Colman variation *","rnb1k2r/pppp1ppp/5q2/8/Nb2P1n1/2P2N2/P4PPP/1RBQKB1R b Kkq -"
"KGA: bishop's gambit, Bryan counter-gambit","rnb1kbnr/p1pp1ppp/8/1p6/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq -"
"KGA: Muzio gambit, Kling and Horwitz counter-attack","rnb1kbnr/ppppqp1p/8/8/2B1Ppp1/5N2/PPPP2PP/RNBQ1RK1 w kq -"
"KGA: bishop's gambit, classical defense, Cozio attack *","rnb2knr/pppp2pp/5q2/2b1pP1Q/6P1/8/PPPP1P1P/RNB1KBNR w KQ -"
"Nimzo-Indian: 4.e3, Gligoric system, Smyslov variation","rnb2rk1/pp2qppp/4pn2/2p5/1bBP4/2N1PN2/PP3PPP/R1BQ1RK1 w - -"
"KGA: Tumbleweed gambit *","rnbq1bnr/pppp1kpp/8/4pP2/8/8/PPPP1PPP/RNBQKBNR w KQ -"
"Ruy Lopez: open, classical defense *","rnbq1rk1/pp3ppp/1bp2n2/4N3/1P1Pp3/P1N1B3/2P1BPPP/R2QK2R b KQ -"
"Grunfeld with e3 & Bd3","rnbq1rk1/ppp1ppbp/5np1/3p4/2PP4/2NBPN2/PP3PPP/R1BQK2R b KQ -"
"King's Indian: Pomar system","rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N3P1/PP2NPBP/R1BQK2R b KQ -"
"Dutch defense: Dutch-Indian (Nimzo-Dutch) variation *","rnbqk1nr/pp2ppbp/6p1/1Bpp4/5P2/4PN2/PPPP2PP/RNBQK2R b KQkq -"
"KGA: bishop's gambit *","rnbqk1nr/pppp2pp/8/2b1pP2/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"KGA: Lesser bishop's (Petroff-Jaenisch-Tartakower) gambit *","rnbqk1nr/ppppb1pp/8/4pP2/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Ruy Lopez: modern Steinitz defense, siesta variation *","rnbqk2r/pp1p1ppp/2p2n2/b3p3/4PP2/P1NP4/1PP3PP/R1BQKBNR b KQkq -"
"Nimzo-Indian: 4.e3 c5, 5.Ne2 (Rubinstein, anti-Hubner system)","rnbqk2r/pp1p1ppp/4pn2/2p5/1bPP4/2N1P3/PP2NPPP/R1BQKB1R b KQkq -"
"French: Winawer, advance, poisoned pawn variation","rnbqk2r/pp2nppp/4p3/2ppP3/3P2Q1/P1P5/2P2PPP/R1B1KBNR b KQkq -"
"Neo-Grunfeld, 5.cd, main line","rnbqk2r/ppp1ppbp/1n4p1/8/3PP3/6P1/PP2NPBP/RNBQK2R b KQkq -"
"King's Indian: Smyslov system","rnbqk2r/ppp1ppbp/3p1np1/6B1/2PP4/2N2N2/PP2PPPP/R2QKB1R b KQkq -"
"Grunfeld: exchange, classical variation","rnbqk2r/ppp1ppbp/6p1/8/2BPP3/2P5/P4PPP/R1BQK1NR b KQkq -"
"French: MacCutcheon, Janowski variation","rnbqk2r/ppp2pp1/4pn1p/3pP3/1b1P4/2N1B3/PPP2PPP/R2QKBNR b KQkq -"
"Nimzo-Indian: classical, Noa variation, 5.a3","rnbqk2r/ppp2ppp/4pn2/3p4/1bPP4/P1N5/1PQ1PPPP/R1B1KBNR b KQkq -"
"Queen's Indian: Miles variation","rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP1B2/5N2/PP2PPPP/RN1QKB1R b KQkq -"
"Blumenfeld counter-gambit, Dus-Chotimursky variation","rnbqkb1r/p2p1ppp/4pn2/1ppP2B1/2P5/5N2/PP2PPPP/RN1QKB1R b KQkq -"
"Ponziani: Jaenisch counter-attack *","rnbqkb1r/pp1p1ppp/2p2n2/4p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"Caro-Kann: Forgacs variation","rnbqkb1r/pp3ppp/2p2p2/8/2BP4/8/PPP2PPP/R1BQK1NR b KQkq -"
"Benoni: 6.e4","rnbqkb1r/pp3ppp/3p1n2/2pP4/4P3/2N5/PP3PPP/R1BQKBNR b KQkq -"
"QGA: classical variation, 6.O-O","rnbqkb1r/pp3ppp/4pn2/2p5/2BP4/4PN2/PP3PPP/RNBQ1RK1 b kq -"
"Bird: From gambit, Lipke variation *","rnbqkb1r/ppp1p1pp/5n2/3p4/8/3B3N/PPP2PPP/RNBQK2R w KQkq -"
"Grunfeld: Russian variation","rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/1QN5/PP2PPPP/R1B1KBNR b KQkq -"
"Alekhine's defense","rnbqkb1r/ppp1pppp/3p4/3nP3/2PP4/8/PP3PPP/RNBQKBNR b KQkq -"
"Hawk (Habichd) defense *","rnbqkb1r/ppp1pppp/5n2/2P5/3p4/5N2/PP1PPPPP/RNBQKB1R b KQkq -"
"Petrov: Nimzovich attack","rnbqkb1r/ppp2ppp/3p4/8/4n3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"Vienna gambit, Steinitz variation","rnbqkb1r/ppp2ppp/5n2/3pp3/4PP2/2NP4/PPP3PP/R1BQKBNR b KQkq -"
"Sicilian: O'Kelly variation *","rnbqkb1r/pppp1ppp/5n2/4p3/2P5/P7/1P1PPPPP/RNBQKBNR b KQkq -"
"Alekhine's defense: two pawns' (Lasker's) attack","rnbqkb1r/pppppppp/1n6/2P1P3/8/8/PP1P1PPP/RNBQKBNR b KQkq -"
"Queen's pawn game","rnbqkb1r/pppppppp/5n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq -"
"Nimzovich-Larsen attack: Polish variation *","rnbqkbnr/p1pppppp/1p6/8/1P6/8/P1PPPPPP/RNBQKBNR b KQkq -"
"Nimzovich-Larsen attack: Indian variation *","rnbqkbnr/p1pppppp/1p6/8/8/5N2/PPPPPPPP/RNBQKB1R b KQkq -"
"Caro-Kann: closed (Breyer) variation","rnbqkbnr/pp1ppppp/2p5/8/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq -"
"Sicilian: wing gambit","rnbqkbnr/pp1ppppp/8/2p5/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq -"
"English: symmetrical variation *","rnbqkbnr/pp1ppppp/8/2p5/2P5/8/PP1PPPPP/RNBQKBNR b KQkq -"
"Sicilian: wing gambit deferred","rnbqkbnr/pp2pppp/3p4/2p5/1P2P3/5N2/P1PP1PPP/RNBQKB1R b KQkq -"
"Queen's pawn: Franco-Indian (Keres) defense *","rnbqkbnr/pp2pppp/8/1Bpp4/8/4P3/PPPP1PPP/RNBQK1NR b KQkq -"
"Benoni defense *","rnbqkbnr/pp2pppp/8/2p5/2Pp4/4PN2/PP1P1PPP/RNBQKB1R b KQkq -"
"Budapest defense declined *","rnbqkbnr/pp2pppp/8/2pp4/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -"
"French: advance variation *","rnbqkbnr/pp3ppp/2p5/3p4/2PPp3/2N1P3/PP3PPP/R1BQKBNR b KQkq -"
"French: Wing gambit","rnbqkbnr/pp3ppp/4p3/2ppP3/1P6/5N2/P1PP1PPP/RNBQKB1R b KQkq -"
"Alekhine's defense: exchange variation *","rnbqkbnr/pp3ppp/8/2pp4/8/1N1p4/PPP1PPPP/RNBQKB1R w KQkq -"
"Santasiere's folly","rnbqkbnr/ppp1pppp/8/3p4/1P6/5N2/P1PPPPPP/RNBQKB1R b KQkq -"
"Queen's Pawn *","rnbqkbnr/ppp1pppp/8/3p4/8/3P4/PPP1PPPP/RNBQKBNR b KQkq -"
"Alekhine's defense: O'Sullivan gambit *","rnbqkbnr/ppp2ppp/8/3p4/1P1Np3/8/P1PPPPPP/RNBQKB1R b KQkq -"
"KGD: 2...Nf6 *","rnbqkbnr/pppp2pp/8/4pp2/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -"
"KGD: Norwalde variation *","rnbqkbnr/pppp2pp/8/4pp2/4P3/5Q2/PPPP1PPP/RNB1KBNR b KQkq -"
"Van't Kruijs opening","rnbqkbnr/pppppppp/8/8/8/4P3/PPPP1PPP/RNBQKBNR b KQkq -"
"Ruy Lopez: closed, 8.c3 *","rnbqr1k1/pp1p1ppp/1bp2n2/4p3/1P2P3/P1N2N2/2PPBPPP/R1BQ1RK1 w - -"
"Lasker simul special","rnbqkbnr/ppppppp1/8/7p/8/6P1/PPPPPP1P/RNBQKBNR w KQkq h6"
"English-KID fianchetto","rnbqkb1r/pppp1ppp/5n2/4p3/2P5/6P1/PP1PPPBP/RNBQK1NR b KQkq -"
"English opening: Agincourt variation","rnbqkbnr/ppp2ppp/4p3/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq d6"
"English: kingside fianchetto (...d5) defence","r1bqk2r/ppp1bppp/1nn5/4p3/8/2N2NP1/PP1PPPBP/1RBQ1RK1 b kq -"
"Alekhine's defence","rnbqkb1r/pppppppp/8/3nP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq d3"
"KGA: Allgaier, Urusov attack","rnbq1bnr/ppp3k1/7p/3B4/3PPppP/8/PPP3P1/RNBQK2R b KQ d3"
"Philidor's defence","rnbqkbnr/ppp2ppp/3p4/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq d3"
"Pirc: Austrian attack","rnbqkb1r/ppp1pp1p/3p1np1/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq f3"
"Caro-Kann: Steinitz variation (8.Bd3)","r1bqkb1r/pp3ppp/1np1pn2/6N1/3P4/3B4/PPP1QPPP/R1B1K1NR b KQkq -"
"Sicilian: Grand Prix attack","r1bqkbnr/pp1ppppp/2n5/2p5/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq f3"
"Rousseau gambit","r1bqkbnr/pppp2pp/2n5/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq f6"
"Sicilian: Richter-Rauzer, Rauzer attack (...a6 ...h6) defence","r3k2r/3bbpp1/3ppn1p/p7/1pqNPPP1/4B1NP/PPPQ4/1K1R1R2 b kq -"
"QGD: semi-Slav, Abrahams variation","rnbqk1nr/5ppp/2p1p3/pp6/PbpP4/2N1PN2/1P1B1PPP/R2QKB1R w KQkq a6"
"QGD: exchange, modern line","r1bqr1k1/pp1nbppp/2p2n2/3p2B1/3P4/2NBP2P/PPQ1NPP1/R3K2R b KQ -"
"QGD: semi-Slav, stonewall defence","rnbqkb1r/pp4pp/2p1p3/3p1p2/2PPn3/2NBPN2/PP3PPP/R1BQK2R w KQkq f6"
"Catalan: open, classical line","rnbq1rk1/ppp1bppp/4pn2/8/2pP4/5NP1/PPQ1PPBP/RNB2RK1 b - -"
"Sicilian: Najdorf, Ivkov variation *","2krr3/pppq1ppp/1bn5/3n4/QPN1p1b1/P2PPN2/1B3PPP/R3KB1R w KQ -"
"Grunfeld: Pachman variation *","r1b1k2r/pp3ppp/1qn1p3/2bp4/6n1/5NP1/PPPNPPBP/R1BQ1RK1 w kq -"
"QGD: Cambridge Springs defense, Capablanca variation","r1b1kb1r/pp1n1ppp/2p1pB2/q2p4/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQkq -"
"Grunfeld with e3 & Qb3 *","r1b1kb1r/pp3ppp/1qn1pn2/2pp4/3P4/5NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"KGA: bishop's gambit, classical defense *","r1bq1knr/ppp3pp/2n5/2bppP1Q/6P1/8/PPPPNPBP/RNB1K2R b KQ -"
"Benoni: fianchetto, 11...Re8 *","r1bq1rk1/1p1nppbp/2n3p1/p7/2Pp4/P2P1NP1/1P1N1PBP/R1BQR1K1 b - -"
"Ruy Lopez: open, Berger variation *","r1bq1rk1/1pp2ppp/1bn5/p2PN3/1P1P4/P7/2P2PPP/R1BQKB1R w KQ -"
"Ruy Lopez: closed (9...Na5)","r1bq1rk1/2p1bppp/p2p1n2/np2p3/4P3/2P2N1P/PPBP1PP1/RNBQR1K1 b - -"
"Ruy Lopez: closed, Breyer, Simagin variation","r1bq1rk1/2pnbppp/p2p1n2/1p2p3/3PP2N/1BP4P/PP3PP1/RNBQR1K1 b - -"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 defense, 9.f4","r1bq1rk1/pp2bppp/2nppn2/6B1/3NPP2/2N5/PPPQ2PP/2KR1B1R b - -"
"King's Indian: fianchetto, Uhlmann (Szabo) variation *","r1bq1rk1/pp2ppbp/2n2np1/2pp4/4P3/2NP1NP1/PPP2PBP/R1BQ1RK1 b - -"
"King's Indian: fianchetto with ...Nc6","r1bq1rk1/ppp1ppbp/2np1np1/8/2PP4/2N2NP1/PP2PPBP/R1BQK2R w KQ -"
"Ruy Lopez: open, Bernstein variation *","r1bq1rk1/pppn1ppp/1b3n2/4N3/1P1Pp3/P1N1B3/2P2PPP/R2QKB1R w KQ -"
"QGD: Orthodox defense","r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R w KQ -"
"Four Knights: Nimzovich (Paulsen) variation *","r1bq1rk1/pppp1ppp/2n2n2/1B2p3/4P3/2b2N2/PPPP1PPP/R1BQ1RK1 w - -"
"Four Knights: Rubinstein counter-gambit, Henneberger variation *","r1bq1rk1/pppp1ppp/2n2n2/3Np3/1b2P3/5N2/PPPP1PPP/R1BQKB1R w KQ -"
"Evans gambit: Morphy attack","r1bqk1nr/ppp2ppp/1bnp4/8/2BPP3/2N2N2/P4PPP/R1BQ1RK1 b kq -"
"KGA: bishop's gambit, Jaenisch variation *","r1bqk1nr/pppp2pp/2n5/2b1pP2/8/2P2N2/PP1P1PPP/RNBQKB1R b KQkq -"
"King's Indian: Four pawns attack, with Be2 and Nf3 *","r1bqk2r/pp2b1pp/2n2n2/2pppp2/2P5/3P1NP1/PP2PPBP/RNBQ1RK1 w kq -"
"English: Symmetrical, Keres defense","r1bqk2r/pp2bppp/2n1p3/2pn4/8/2N2NP1/PP1PPPBP/R1BQ1RK1 w kq -"
"QGD: Tarrasch, Prague variation, 7...Be7","r1bqk2r/pp2bppp/2n2n2/2pp4/3P4/2N2NP1/PP2PPBP/R1BQK2R w KQkq -"
"QGD semi-Slav: Meran, Sozin variation *","r1bqk2r/pp3ppp/3b1n2/3P4/1n2N3/P3PN2/5PPP/R1BQKB1R b KQkq -"
"Sicilian: Najdorf, Opocensky variation *","r1bqk2r/ppp1bppp/2n5/3np3/8/P2P1N2/1P2PPPP/RNBQKB1R w KQkq -"
"Giuoco Piano: Four Knights variation","r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq -"
"Four Knights: Italian variation *","r1bqk2r/pppp1ppp/2n2n2/2b1p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"KGA: Greco gambit *","r1bqk3/ppp3p1/2n5/2bppP2/4n1P1/2PP4/PP3P2/RNBQK1NB w KQq -"
"French: Tarrasch, closed variation","r1bqkb1r/pp1n1ppp/2n1p3/2ppP3/3P4/2PB4/PP1N1PPP/R1BQK1NR w KQkq -"
"QGD Slav: Breyer variation *","r1bqkb1r/pp1npppp/5n2/2pp4/3P4/2P2N2/PP2PPPP/RNBQKB1R w KQkq -"
"Grunfeld: 5.e3 *","r1bqkb1r/pp3ppp/2n1pn2/2pp4/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq -"
"Old Indian: main line *","r1bqkb1r/pp3ppp/2n2n2/2ppp3/4P3/3P1N2/PPPN1PPP/R1BQKB1R w KQkq -"
"French: Tarrasch, Guimard main line","r1bqkb1r/ppp2ppp/2n1pn2/3p4/3PP3/5N2/PPPN1PPP/R1BQKB1R w KQkq -"
"Pirc: classical (Two Knights) system *","r1bqkb1r/ppp2ppp/2n2n2/3pp3/8/3P1NP1/PPP1PP1P/RNBQKB1R w KQkq -"
"Philidor: Philidor counter-gambit, Berger variation *","r1bqkb1r/ppp2ppp/2n5/4P3/2BP2n1/4p3/PPP3PP/RNBQK1NR w KQkq -"
"Two Knights defense","r1bqkb1r/ppp2ppp/5n2/nB1Pp1N1/8/8/PPPP1PPP/RNBQK2R b KQkq -"
"Sicilian: Dragon, Levenfish variation *","r1bqkb1r/ppp3pp/2n5/3npp2/8/3P1NP1/PP2PP1P/RNBQKB1R w KQkq -"
"QGD: 4.Bg5 Nbd7","r1bqkb1r/pppn1ppp/4pn2/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR w KQkq -"
"Scotch: Tartakower variation *","r1bqkb1r/pppn1ppp/8/4p3/8/2P2N2/P1PP1PPP/R1BQKB1R w KQkq -"
"Three Knights game *","r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"Sicilian: Labourdonnais-Lowenthal variation","r1bqkbnr/pp1p1ppp/2n5/4p3/3NP3/8/PPP2PPP/RNBQKB1R w KQkq -"
"Sicilian: Nimzovich-Rossolimo attack (with ...g6, without ...d6)","r1bqkbnr/pp1ppp1p/2n3p1/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"English opening *","r1bqkbnr/pp1ppppp/2n5/2p5/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"Dutch defense, Rubinstein variation *","r1bqkbnr/pp2pppp/2n5/2pp4/5P2/4P3/PPPP2PP/RNBQKBNR w KQkq -"
"King's Indian defense, 3.Nc3 *","r1bqkbnr/pp2pppp/2n5/2pp4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -"
"French: Paulsen variation *","r1bqkbnr/ppp2ppp/2n5/3pp3/3P4/4P3/PPP2PPP/RNBQKBNR w KQkq -"
"Vienna gambit, Steinitz variation *","r1bqkbnr/ppp3pp/2np4/4pp2/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"Vienna game, Max Lange defense","r1bqkbnr/pppp1ppp/2n5/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"Vienna: Steinitz gambit","r1bqkbnr/pppp1ppp/2n5/8/3PPp2/2N5/PPP3PP/R1BQKBNR b KQkq -"
"Ruy Lopez: Bird's defense","r1bqkbnr/pppp1ppp/8/1B2p3/3nP3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Center game: l'Hermet variation","r1bqkbnr/pppp2pp/2n5/5p2/4P3/4Q3/PPP2PPP/RNB1KBNR w KQkq -"
"Center game: Kupreichik variation","r1bqr1k1/ppp2ppp/2np1n2/8/1bB1P3/2N1Q2N/PPPB1PPP/2KR3R b - -"
"Sicilian: Dragon, Yugoslav attack, 9...Bd7","r2q1rk1/pp1bppbp/2np1np1/8/2BNP3/2N1BP2/PPPQ2PP/R3K2R w KQ -"
"Sicilian: Scheveningen, classical *","r2q1rk1/ppp1b1pp/2n1b3/3npp2/8/P1NPPN2/1PQ2PPP/R1B1KB1R w KQ -"
"Evans gambit: Fraser attack","r2qk1nr/ppp2ppp/1bnp4/8/Q1BPP1b1/2N2N2/P4PPP/R1B2RK1 b kq -"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 defense, 9...Be7","r2qk2r/1p1bbppp/p1nppn2/6B1/3NPP2/2N5/PPPQ2PP/2KR1B1R w kq -"
"Sicilian: Sozin, 7.Be3 *","r2qk2r/ppp2ppp/2n1b3/2bnp3/8/2NPPN2/PP3PPP/R1BQKB1R w KQkq -"
"Giuoco Pianissimo: Canal variation *","r2qk2r/ppp2ppp/2np1n2/2b1p3/2B1P1b1/2NP1N2/PPP2PPP/R1BQK2R w KQkq -"
"Ruy Lopez: modern Steinitz defense, Rubinstein variation","r2qkb1r/1ppbnppp/p1np4/4p3/B2PP3/2P2N2/PP3PPP/RNBQK2R w KQkq -"
"King's Indian: Samisch, orthodox main line *","r2qkb1r/pp2n1pp/2n1bp2/2p1p3/3PP3/3P1NP1/PP3PBP/RNBQ1RK1 b kq -"
"QGD: Ragozin, Vienna variation *","r2qkb1r/pp2pppp/2n2n2/1BPp4/6b1/4PN2/PPP2PPP/RNBQK2R b KQkq -"
"Sicilian: Najdorf, Byrne (English) attack *","r2qkb1r/ppp2ppp/2n1b3/3np3/8/P2P1N2/1P2PPPP/RNBQKB1R w KQkq -"
"Ruy Lopez: modern Steinitz defense","r2qkbnr/1ppb1ppp/p1np4/4p3/B3P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq -"
"Nimzo-Indian: Leningrad variation *","r2qkbnr/pp2pppp/2n5/1Bpp4/6b1/4PN2/PPPP1PPP/RNBQK2R w KQkq -"
"Grunfeld: 4.Bf4 *","r2qkbnr/pp2pppp/2n5/2pp1b2/3P4/5NP1/PPP1PP1P/RNBQKB1R w KQkq -"
"QGD *","r2qkbnr/pp3ppp/2n1p3/2pp4/3P2b1/4PN2/PPPN1PPP/R1BQKB1R w KQkq -"
"King's Indian: accelerated Averbakh system *","r2qkbnr/pp3ppp/2n5/2ppp3/6b1/3P1NP1/PPP1PPBP/RNBQK2R w KQkq -"
"Ponziani: Caro variation","r2qkbnr/pppb1ppp/2n5/3pp3/Q3P3/2P2N2/PP1P1PPP/RNB1KB1R w KQkq -"
"QGD semi-Slav: anti-Meran, Szabo variation *","r3kb1r/pp3ppp/2n2q2/2Pp4/1P2p1b1/2P1PN2/P2N1P2/R1BQKB1R w KQkq -"
"Sicilian: Scheveningen, Tal variation *","r3kb1r/ppp3pp/2n1bq2/3npp2/8/2NPPN2/PP2BPPP/R1BQK2R w KQkq -"
"QGD: Cambridge Springs defense, Bogolyubov variation *","r3kb1r/ppqn1ppp/2n1p3/1Bpp4/Q2P2b1/2P1PN2/PP1N1PPP/R1B1K2R w KQkq -"
"Ruy Lopez: Berlin defense, Rio de Janeiro variation *","r3r1k1/ppp1qppp/2n5/3b4/2P1p3/8/P1PPBPPP/R1BQ1RK1 b - -"
"Grunfeld: Grunfeld gambit, Botvinnik variation","rn1q1rk1/pp2ppbp/4bnp1/2Pp4/2P2B2/2N1P3/PP3PPP/2RQKBNR w K -"
"Queen's Indian: 5.Bg2 Be7","rn1qk2r/pbppbppp/1p2pn2/8/2PP4/5NP1/PP2PPBP/RNBQK2R w KQkq -"
"Giuoco Piano: Mestel variation *","rn1qk2r/pp3ppp/2p2n2/2bpp3/4P1b1/1BN5/PPPPQPPP/R1B1K1NR w KQkq -"
"Ruy Lopez: Berlin defense, Kaufmann variation *","rn1qk2r/ppp2ppp/3pbn2/4p3/1bB1P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq -"
"Reti: King's Indian attack, Yugoslav variation","rn1qkb1r/pp2pppp/2p2n2/3p4/6b1/5NP1/PPPPPPBP/RNBQ1RK1 w kq -"
"Queen's pawn: Torre attack, Wagner gambit *","rn1qkb1r/ppp2ppp/5n2/3pp3/2P3b1/4PN2/PP1P1PPP/RNBQKB1R w KQkq -"
"Neo-Indian (Seirawan) attack *","rn1qkbnr/pp2pppp/8/2pp4/6b1/4PN2/PPPP1PPP/RNBQKB1R w KQkq -"
"Levitsky attack (Queen's bishop attack) *","rn1qkbnr/ppp1pppp/8/3p4/3P2b1/8/PPP1PPPP/RNBQKBNR w KQkq -"
"French: classical variation","rnb1k2r/pppnqppp/4p3/3pP3/3P4/2N5/PPP2PPP/R2QKBNR w KQkq -"
"Center game: Paulsen attack *","rnb1kbnr/ppp2ppp/4q3/4p3/8/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"Center game: Hall variation *","rnb1kbnr/ppp2ppp/8/2q1p3/8/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"Evans gambit: Waller attack *","rnb2rk1/p4ppp/1qp2n2/2bPp3/B7/2NP4/PPP2PPP/R1BQK1NR w KQ -"
"Benoni: classical, 9...a6, 10.a4","rnbq1rk1/1p3pbp/p2p1np1/2pP4/P3P3/2N2N2/1P2BPPP/R1BQ1RK1 b - -"
"Dutch defense, Alekhine variation *","rnbq1rk1/pp2ppbp/5np1/2ppN3/5P2/4P3/PPPPB1PP/RNBQ1RK1 b - -"
"Petrov: classical attack, Tarrasch variation *","rnbq1rk1/pp3ppp/3b1n2/2ppN1B1/3P4/3B4/PPP2PPP/RN1Q1RK1 b - -"
"Dutch: stonewall, Botwinnik variation","rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/1P3NP1/P3PPBP/RNBQ1RK1 b - -"
"King's Indian: classical variation","rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQK2R w KQ -"
"Two Knights: Max Lange attack, Steinitz variation *","rnbq1rk1/ppp2ppp/5n2/2bP2N1/2B1p3/2N5/PPPP1PPP/R1BQK2R b KQ -"
"Philidor: Hanham, Krause variation *","rnbq1rk1/ppp2ppp/5n2/2bpp3/4P3/2PP4/PP1N1PPP/R1BQKBNR w KQ -"
"Dutch defense","rnbq1rk1/ppppb1pp/4pn2/5p2/2PP4/5NP1/PP2PPBP/RNBQK2R w KQ -"
"Queen's pawn: Franco-Indian (Keres) defense","rnbqk1nr/pppp1ppp/4p3/8/1bPP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"KGA: bishop's gambit, Bledow variation *","rnbqk1nr/pppp2pp/8/2b1pP2/3P4/8/PPP2PPP/RNBQKBNR b KQkq -"
"Giuoco Piano: Bird's attack *","rnbqk2r/p2p1ppp/2p2n2/1pb1p3/2B1P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq -"
"Evans gambit: Cordel variation *","rnbqk2r/p4ppp/2p2n2/2bpp3/N3P3/8/PPPPBPPP/R1BQK1NR b KQkq -"
"Philidor: Hanham, Delmar variation *","rnbqk2r/pp3ppp/2p2n2/2bpp3/4P3/2PP4/PP1N1PPP/R1BQKBNR w KQkq -"
"Colle system *","rnbqk2r/pp3ppp/2pbpn2/3p4/2PP4/4PN2/PP3PPP/RNBQKB1R w KQkq -"
"Giuoco Piano *","rnbqk2r/pp3ppp/5n2/2bpp3/2B5/2N2N2/PPPP1PPP/R1BQK2R w KQkq -"
"King's Indian: 3.g3, counterthrust variation","rnbqk2r/ppp1ppbp/5np1/3p4/2PP4/6P1/PP2PPBP/RNBQK1NR w KQkq -"
"Philidor: Nimzovich, Klein variation *","rnbqk2r/ppp2ppp/5n2/2bpp3/4P3/3P1N2/PPP2PPP/RNBQKB1R w KQkq -"
"Philidor: Hanham, Kmoch variation *","rnbqk2r/ppp2ppp/8/2bpp3/4P1n1/2PP4/PP1N1PPP/R1BQKBNR w KQkq -"
"Dutch defense","rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6P1/PP2PPBP/RNBQK1NR w KQkq -"
"Amar gambit *","rnbqk2r/ppppp2p/6pb/5P2/3P4/8/PPP2PPP/RN1QKBNR b KQkq -"
"Reti: King's Indian attack *","rnbqk2r/ppppppbp/5np1/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"QGA: classical, 7...b5","rnbqkb1r/5ppp/p3pn2/1pp5/2BP4/4PN2/PP2QPPP/RNB2RK1 w kq -"
"Queen's Indian accelerated","rnbqkb1r/p1pppppp/1p3n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"Queen's Indian defense","rnbqkb1r/p1pppppp/1p3n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"Blumenfeld counter-gambit, Spielmann variation","rnbqkb1r/p2p1pp1/5n1p/1ppP2B1/8/5N2/PP2PPPP/RN1QKB1R w KQkq -"
"Benko gambit","rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq -"
"QGD Slav: Tolush-Geller gambit","rnbqkb1r/p3pppp/2p2n2/1p2P3/2pP4/2N2N2/PP3PPP/R1BQKB1R b KQkq -"
"Old Benoni defense","rnbqkb1r/pp1ppppp/5n2/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq -"
"English: Bled variation","rnbqkb1r/pp2pp1p/2p2np1/3p4/2P5/1P3N2/PB1PPPPP/RN1QKB1R w KQkq -"
"Caro-Kann: Bronstein-Larsen variation","rnbqkb1r/pp2pp1p/2p2p2/8/3P4/8/PPP2PPP/R1BQKBNR w KQkq -"
"QGD semi-Slav","rnbqkb1r/pp3ppp/2p1pn2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq -"
"Robatsch defense: Geller's system *","rnbqkb1r/pp3ppp/2p2n2/3pp3/8/3P2P1/PPP1PPBP/RNBQK1NR w KQkq -"
"QGD Slav: 4.e3 *","rnbqkb1r/pp3ppp/4pn2/2pp4/3P4/2P2N2/PP2PPPP/RNBQKB1R w KQkq -"
"QGD: Stonewall variation","rnbqkb1r/pp4pp/2p1p3/3p1p2/2PPn3/3BPN2/PP1N1PPP/R1BQK2R w KQkq -"
"Alekhine's defense: four pawns attack, Planinc variation","rnbqkb1r/ppp1pp1p/1n1p4/4P1p1/2PP1P2/8/PP4PP/RNBQKBNR w KQkq -"
"Pirc defense","rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -"
"QGD: Marshall defense","rnbqkb1r/ppp1pppp/5n2/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"Queen's pawn game","rnbqkb1r/ppp1pppp/5n2/3p4/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"Alekhine's defense: Scandinavian variation","rnbqkb1r/ppp1pppp/5n2/3p4/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"Budapest: Alekhine variation","rnbqkb1r/pppp1ppp/8/4P3/2P1P1n1/8/PP3PPP/RNBQKBNR b KQkq -"
"Boden-Kieseritsky gambit","rnbqkb1r/pppp1ppp/8/4p3/2B1n3/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"Latvian: Fraser defense *","rnbqkb1r/pppp1ppp/8/4p3/4nP2/2N5/PPPP2PP/R1BQKBNR b KQkq -"
"KGA: Kieseritsky, Polerio defense *","rnbqkb1r/pppp2p1/8/4pPPp/4n3/8/PPPPBP1P/RNBQK1NR b KQkq -"
"KGA: Cunningham defense *","rnbqkb1r/pppp2pp/5n2/4pP2/8/8/PPPPBPPP/RNBQK1NR b KQkq -"
"Dutch: Staunton gambit, Alekhine variation","rnbqkb1r/ppppp2p/5np1/6B1/3Pp2P/2N5/PPP2PP1/R2QKBNR b KQkq -"
"St. George (Baker) defense","rnbqkbnr/1ppppppp/p7/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"French: Reti (Spielmann) variation *","rnbqkbnr/p1pp1ppp/1p6/4p3/8/4P3/PPPP1PPP/RNBQKBNR w KQkq -"
"Sicilian: wing gambit *","rnbqkbnr/p1pp1ppp/8/1p2p3/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"Dutch with c4 & g3 *","rnbqkbnr/pp2pp1p/6p1/2pp4/5P2/5N2/PPPPP1PP/RNBQKB1R w KQkq -"
"Caro-Kann defense","rnbqkbnr/pp2pppp/2p5/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -"
"Sicilian: Tartakower variation","rnbqkbnr/pp2pppp/3p4/8/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq -"
"Budapest: Fajarowicz variation *","rnbqkbnr/pp2pppp/8/2p1N3/4p3/8/PPPP1PPP/RNBQKB1R b KQkq -"
"Queen's pawn, Mason variation, Steinitz counter-gambit","rnbqkbnr/pp2pppp/8/2pp4/3P1B2/8/PPP1PPPP/RN1QKBNR w KQkq -"
"French: Tarrasch, open variation","rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/8/PPPN1PPP/R1BQKBNR w KQkq -"
"Caro-Kann: Panov-Botvinnik, Gunderam attack *","rnbqkbnr/pp3ppp/8/3p4/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq -"
"Reti: King's Indian attack","rnbqkbnr/ppp1pp1p/6p1/3p4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -"
"Queen's gambit declined","rnbqkbnr/ppp2ppp/4p3/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"KGD: Falkbeer, Nimzovich variation","rnbqkbnr/ppp2ppp/8/1B1P4/4pP2/8/PPPP2PP/RNBQK1NR b KQkq -"
"Latvian: Polerio variation","rnbqkbnr/ppp3pp/8/3pN3/2B1p3/8/PPPP1PPP/RNBQK2R w KQkq -"
"English: Adorjan defense","rnbqkbnr/pppp1p1p/6p1/4p3/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq -"
"KGA: MacDonnell gambit","rnbqkbnr/pppp1p1p/8/8/2B1Ppp1/2N2N2/PPPP2PP/R1BQK2R b KQkq -"
"Queen's pawn: Charlick (Englund) gambit","rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"KGA: Pawn's gambit (Stamma gambit)","rnbqkbnr/pppp1ppp/8/8/4Pp1P/8/PPPP2P1/RNBQKBNR b KQkq -"
"Bird: Hobbs gambit","rnbqkbnr/pppppp1p/8/6p1/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -"
"Two Knights: Max Lange attack, Schlechter variation *","rnbqr1k1/ppp2ppp/5n2/2PP4/2B5/2N1B3/PPP2PpP/R2QK2R w KQ -"
"Trident opening","rnbqkbnr/pp1ppppp/8/2p5/8/6P1/PPPPPP1P/RNBQKBNR w KQkq c6"
"English: Caro-Kann defensive system","rnbqkb1r/ppp1pp1p/5np1/3p4/8/5NP1/PPPPPPBP/RNBQK2R w KQkq -"
"Old Indian defence","rnbqkbnr/ppp1pppp/3p4/8/2PP4/8/PP2PPPP/RNBQKBNR b KQkq c3"
"KP: Nimzovich defence, Wheeler gambit","r1bqkbnr/pppppppp/2n5/8/3PP3/2P5/P4PPP/RNBQKBNR b KQkq d3"
"KGA: Muzio gambit, Brentano defence","rnbqkbnr/ppp2p1p/8/3p4/2B1Ppp1/5N2/PPPP2PP/RNBQ1RK1 w kq d6"
"Ruy Lopez: modern Steinitz defence, fianchetto (Bronstein) variation","r2qk1nr/1ppb1pbp/p1np2p1/4p3/B2PP3/2P2N2/PP3PPP/RNBQ1RK1 w kq -"
"Sicilian: Scheveningen, fianchetto variation","r1b1kb1r/1pq2ppp/p1nppn2/8/3NP3/2N3P1/PPP2PBP/R1BQ1RK1 w kq -"
"Ruy Lopez: closed centre (7...Bb7)","r2qk2r/1bppbppp/p1n2n2/1p2p3/4P3/1B1P1N2/PPP2PPP/RNBQ1RK1 w kq -"
"Ruy Lopez: closed centre (7...d6)","r1bqk2r/2p1bppp/p1np1n2/1p2p3/4P3/1B1P1N2/PPP2PPP/RNBQ1RK1 w kq -"
"Ruy Lopez: Worrall attack, sharp line","r1bq1rk1/2ppbppp/p1n2n2/1p2p3/4P3/1BP2N2/PP1PQPPP/RNB2RK1 b - -"
"Ruy Lopez: Noah's ark trap","r1bqk2r/4bppp/p2p1n2/1pp5/3QP3/1B6/PPP2PPP/RNB1R1K1 w kq c6"
"QGD: Albin counter-gambit","rnbqkbnr/ppp2ppp/8/3pp3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq e6"
"QGA: Ericson variation","rnbqkbnr/p1p1pppp/8/1p6/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq b6"
"QGD: Tarrasch defence","rnbqkbnr/pp3ppp/4p3/2pp4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq c6"
"Nimzo-Indian: Kasparov system","r1bqk2r/pp1p1ppp/2n1pn2/2p5/1bPP4/2N2NP1/PP2PP1P/R1BQKB1R w KQkq -"
"King's Indian: Saemisch, orthodox, Karpov variation","r1bq1rk1/1p1n1pbn/p2p2p1/3Pp1Pp/4P3/2N1BP2/PP1QN2P/R3KBR1 b Q -"
"Scotch: Berger variation","N1bk3r/pp1p1ppp/2n2n2/8/1b6/P4B1q/1PPN1P1P/R1BQK2R b KQ -"
"Giuoco Piano: Tarrasch variation","r1b1k2r/1pp1qppp/pbnp1n2/4p3/P1BPP3/2P2N1P/1P3PP1/RNBQR1K1 b kq -"
"Nimzo-Indian: classical, 4...c5 *","r1b1kbnr/ppq1pppp/2n5/1Bpp4/2P5/4PN2/PP1P1PPP/RNBQK2R b KQkq -"
"Ruy Lopez: Marshall, Kevitz variation","r1bq1rk1/5ppp/p2b4/1p1p4/3P4/2P1R3/PP3PPP/RNBQ2K1 b - -"
"Grunfeld: exchange, Simagin's lesser variation *","r1bqk2r/p3nppp/2p5/2bpp3/8/1P4P1/P1P1PPBP/RNBQ1RK1 b kq -"
"Sicilian: Dragon, classical, 8.O-O","r1bqk2r/pp2ppbp/2np1np1/8/3NP3/2N1B3/PPP1BPPP/R2Q1RK1 b kq -"
"Giuoco Pianissimo: Italian Four Knights variation","r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/2NP1N2/PPP2PPP/R1BQK2R b KQkq -"
"Two Knights: Max Lange attack, Steinitz variation","r1bqk2r/pppp1ppp/2n5/2b1P3/2Bp2n1/5N2/PPP2PPP/RNBQ1RK1 w kq -"
"KGA: MacDonnell gambit *","r1bqk2r/pppp2pp/2n2n2/2b1pPP1/8/8/PPPP1P1P/RNBQKBNR w KQkq -"
"Nimzo-Indian: Simagin variation *","r1bqkb1r/1p2nppp/p1n1p3/2pp4/3P4/3BPN2/PPP2PPP/RNBQ1RK1 b kq -"
"French: Winawer, advance, Rauzer variation *","r1bqkb1r/1pp2ppp/2P2n2/1p6/3Pp3/4P3/PP3PPP/RNBQK1NR w KQkq -"
"Ruy Lopez: Steinitz defense deferred, Rubinstein variation","r1bqkb1r/2p2ppp/p1pp4/4p3/3Pn3/5N2/PPP2PPP/RNBQ1RK1 w kq -"
"QGD semi-Slav: Meran, Sozin variation","r1bqkb1r/5ppp/p3pn2/1N2n3/3p4/3B1N2/PP3PPP/R1BQK2R w KQkq -"
"QGD semi-Slav: 6.Bd3","r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/2NBPN2/PP3PPP/R1BQK2R b KQkq -"
"English: symmetrical, Three Knights system *","r1bqkb1r/pp1ppppp/2n2n2/8/2PN4/8/PP2PPPP/RNBQKB1R b KQkq -"
"Four Knights: Rubinstein counter-gambit, Henneberger variation","r1bqkb1r/pppp1ppp/5n2/1B2p3/3nP3/2N2N2/PPPP1PPP/R1BQ1RK1 b kq -"
"Vienna gambit: Breyer variation *","r1bqkb1r/pppp2pp/2n2n2/4N3/3Pp3/8/PPP1BPPP/RNBQK2R b KQkq -"
"Nimzo-Indian defense *","r1bqkbnr/pp2pppp/2n5/1Bpp4/8/4PN2/PPPP1PPP/RNBQK2R b KQkq -"
"Caro-Kann: Gurgenidze counter-attack *","r1bqkbnr/ppp2ppp/2n5/3pp3/1P1P4/2P5/P3PPPP/RNBQKBNR b KQkq -"
"French: Marshall variation *","r1bqkbnr/ppp2ppp/2n5/3pp3/2PP4/4P3/PP3PPP/RNBQKBNR b KQkq -"
"French: Rubinstein variation *","r1bqkbnr/ppp2ppp/8/3pn3/8/4P3/PPPN1PPP/R1BQKBNR b KQkq -"
"QGD: Albin counter-gambit, Janowski variation","r1bqkbnr/ppp3pp/2n2p2/4P3/2Pp4/5N2/PP1NPPPP/R1BQKB1R w KQkq -"
"Dutch: Ilyin-Genevsky, Winter variation *","r1bqr1k1/pp2ppbp/2n2np1/2pp4/5P2/3PPN2/PPP1B1PP/RNB1QRK1 w - -"
"Catalan: closed, Spassky gambit","r2q1rk1/pb1nbppp/2p1pn2/1p1p4/2PP4/1PN2NP1/P1Q1PPBP/R1BR2K1 w - -"
"QGD: Lasker defense *","r2qkb1r/pp3ppp/2n1pn2/2ppN2b/3P4/4P2P/PPP1BPP1/RNBQ1RK1 b kq -"
"Caro-Kann: classical, Spassky variation","r2qkbnr/pp1nppp1/2p3bp/7P/3P4/5NN1/PPP2PP1/R1BQKB1R b KQkq -"
"QGD: exchange, positional line, 5...c6 *","r2qkbnr/pp2pppp/2n5/3p4/3P2b1/2P2N2/PP3PPP/RNBQKB1R b KQkq -"
"Grunfeld: Grunfeld gambit accepted *","r2qkbnr/pp3ppp/4p3/3p4/3Q4/6P1/PPb1PPBP/RNB2RK1 w kq -"
"QGD: Lasker defense, Russian variation","r4rk1/pp1bqpp1/2n1pn1p/2p5/2BP4/2N1PN2/PPQ2PPP/R2R2K1 w - -"
"Grunfeld: Flohr defense","rn1q1rk1/pp2ppbp/2p2np1/3p1b2/2PP4/2NBPN2/PP3PPP/R1BQ1RK1 w - -"
"QGD Slav: exchange variation","rn1qkb1r/pp2pppp/5n2/3p1b2/3P4/2N1PN2/PP3PPP/R1BQKB1R b KQkq -"
"Caro-Kann: classical, Maroczy attack","rn1qkbnr/pp2pppp/2p3b1/8/3P1P2/6N1/PPP3PP/R1BQKBNR b KQkq -"
"Queen's pawn, Mason variation, Steinitz counter-gambit *","rn1qkbnr/ppp1pppp/8/3p1b2/2PP4/8/PP2PPPP/RNBQKBNR b KQkq -"
"Ponziani: Caro variation *","rnb1kb1r/pp1p1ppp/2p2n2/q3p3/3PP3/2N5/PPPB1PPP/R2QKBNR b KQkq -"
"Neo-Grunfeld, 6.cd Nxd5, 7.O-O *","rnbq1rk1/pp2ppbp/5np1/3p4/3N4/6P1/PPP1PPBP/RNBQ1RK1 w - -"
"Ruy Lopez: open, Italian variation *","rnbq1rk1/pp3ppp/1bp2n2/4N3/1PBPp3/P1N1B3/2P2PPP/R2QK2R b KQ -"
"Grunfeld: Makogonov variation","rnbq1rk1/ppp1ppbp/5np1/3p4/1PPP4/2N1PN2/P4PPP/R1BQKB1R b KQ -"
"Grunfeld with e3 & Qb3","rnbq1rk1/ppp1ppbp/5np1/3p4/2PP4/1QN1PN2/PP3PPP/R1B1KB1R b KQ -"
"Ruy Lopez: open, 8...Be6 *","rnbq1rk1/ppp2ppp/1b3n2/4N3/1P1Pp3/P1N1B3/2P2PPP/R2QKB1R b KQ -"
"Dutch defense *","rnbqk1nr/pp2ppbp/6p1/2pp4/5P2/4PN2/PPPPB1PP/RNBQK2R b KQkq -"
"French: Winawer, advance variation","rnbqk1nr/ppp2ppp/4p3/3pP3/1b1P4/2N5/PPP2PPP/R1BQKBNR b KQkq -"
"French: Winawer, advance, positional main line","rnbqk2r/pp2nppp/4p3/2ppP3/3P4/P1P2N2/2P2PPP/R1BQKB1R b KQkq -"
"Giuoco Piano: center-holding variation *","rnbqk2r/pp3ppp/2p2n2/2bpp3/4P3/1BN5/PPPPQPPP/R1B1K1NR b KQkq -"
"Alekhine's defense: modern, Keres variation","rnbqk2r/ppp1ppbp/1n1p2p1/4P3/P2P4/1B3N2/1PP2PPP/RNBQK2R b KQkq -"
"Neo-Grunfeld, 5.Nf3","rnbqk2r/ppp1ppbp/5np1/3p4/2PP4/5NP1/PP2PPBP/RNBQK2R b KQkq -"
"Grunfeld: Flohr variation","rnbqk2r/ppp1ppbp/5np1/3p4/Q1PP4/2N2N2/PP2PPPP/R1B1KB1R b KQkq -"
"French: Albin-Alekhine-Chatard attack","rnbqk2r/pppnbppp/4p3/3pP1B1/3P3P/2N5/PPP2PP1/R2QKBNR b KQkq -"
"Sicilian: Najdorf, Lipnitzky attack","rnbqkb1r/1p2pppp/p2p1n2/8/2BNP3/2N5/PPP2PPP/R1BQK2R b KQkq -"
"Sicilian: Najdorf, 7.f4","rnbqkb1r/1p3ppp/p2ppn2/6B1/3NPP2/2N5/PPP3PP/R2QKB1R b KQkq -"
"Sicilian","rnbqkb1r/pp2pppp/3p1n2/8/3NP3/2N5/PPP2PPP/R1BQKB1R b KQkq -"
"Dzindzikhashvili defense *","rnbqkb1r/pp2pppp/5n2/2pp4/8/P3PN2/1PPP1PPP/RNBQKB1R b KQkq -"
"Dory defense *","rnbqkb1r/pp2pppp/5n2/2ppN3/8/4P3/PPPP1PPP/RNBQKB1R b KQkq -"
"Sicilian: Prins variation, Venice attack","rnbqkb1r/pp3ppp/3p1n2/1B2p3/3NP3/5P2/PPP3PP/RNBQK2R b KQkq -"
"Queen's gambit accepted","rnbqkb1r/ppp1pppp/5n2/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq -"
"Alekhine's defense: modern, Schmid variation *","rnbqkb1r/ppp2ppp/5n2/3p4/4p3/1N1P4/PPP1PPPP/RNBQKB1R b KQkq -"
"Petrov: classical attack, close variation *","rnbqkb1r/ppp2ppp/5n2/3p4/8/3P1N2/PPP2PPP/RNBQKB1R b KQkq -"
"Reti: King's Indian attack (with ...c5) *","rnbqkb1r/pppppp1p/5np1/8/2PP4/8/PP2PPPP/RNBQKBNR b KQkq -"
"Sicilian: Steinitz variation","rnbqkbnr/pp1ppppp/8/2p5/4P3/6P1/PPPP1P1P/RNBQKBNR b KQkq -"
"Sicilian: Grand Prix attack","rnbqkbnr/pp1ppppp/8/2p5/4PP2/8/PPPP2PP/RNBQKBNR b KQkq -"
"Old Indian defense *","rnbqkbnr/pp2pppp/8/2pp4/8/3P1N2/PPP1PPPP/RNBQKB1R b KQkq -"
"Reti: King's Indian attack","rnbqkbnr/pp2pppp/8/2pp4/8/5NP1/PPPPPPBP/RNBQK2R b KQkq -"
"Old Benoni defense *","rnbqkbnr/ppp1pppp/8/8/2Pp4/3P4/PP2PPPP/RNBQKBNR b KQkq -"
"French: Schlechter variation","rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/3B4/PPP2PPP/RNBQK1NR b KQkq -"
"KP: Mengarini's opening","rnbqkbnr/pppp1ppp/8/4p3/4P3/P7/1PPP1PPP/RNBQKBNR b KQkq -"
"Barnes defense *","rnbqkbnr/pppp1ppp/8/4p3/8/5P2/PPPPP1PP/RNBQKBNR b KQkq -"
"Carr's defense *","rnbqkbnr/pppp1ppp/8/4p3/8/7P/PPPPPPP1/RNBQKBNR b KQkq -"
"Dutch: Staunton gambit","rnbqkbnr/ppppp1pp/8/8/3Pp3/8/PPP2PPP/RNBQKBNR w KQkq -"
"English opening","rnbqkbnr/pppp1ppp/8/4p3/2P5/6P1/PP1PPP1P/RNBQKBNR b KQkq -"
"Two knights defence: Lolli attack","r1bqkb1r/ppp2ppp/2n5/3np1N1/2BP4/8/PPP2PPP/RNBQK2R b KQkq d3"
"Ruy Lopez: modern Steinitz defence, siesta variation","r1bqkbnr/1pp3pp/p1np4/4pp2/B3P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq f6"
"Catalan: open (5.Qa4)","rn1qkb1r/pppb1ppp/4pn2/8/Q1pP4/6P1/PP2PPBP/RNB1K1NR w KQkq -"
"Queen's Indian (with e3)","rn1qk2r/pbpp1ppp/1p2pn2/8/1bPP4/3BPN2/PP1N1PPP/R1BQK2R b KQkq -"
"King's Indian: Saemisch, Panno formation","r1bq1rk1/1pp1ppbp/p1np1np1/8/2PPP3/2N1BP2/PP1QN1PP/R3KB1R b KQ -"
"QGD: Orthodox defense, classical, 13.de *","3q1rk1/pp3ppp/2r1p3/2b5/4Q3/2P5/PP3PPP/R1B2RK1 b - -"
"Vienna: `Frankenstein-Dracula' variation *","r1b1k1nr/pppp1ppp/1b6/8/3qPP2/1PNN2P1/P2PQ2P/n1BK1B1R b kq -"
"KGD: classical, Svenonius variation *","r1b1k2r/ppp3p1/2np1q1p/2b1pP2/2B5/2NP1N2/PPP2PPP/R2QK2R b KQkq -"
"QGD: Rochlin variation","r1b1kb1r/pp1n1ppp/2p1pn2/q2p4/2PP4/2N2N2/PP1BPPPP/2RQKB1R b Kkq -"
"English: Four Knights, Romanishin variation *","r1b1kb1r/ppqp1ppp/2B1pn2/2p5/4P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"QGD Slav: Dutch variation *","r1bq1rk1/1p3ppp/2n1pn2/pBbp4/5B2/2P1PN2/PP3PPP/RN1QK2R w KQ -"
"King's Indian: orthodox, Donner variation *","r1bq1rk1/pp2bppp/2n2n2/2ppp3/4P3/2PP1NP1/PP3PBP/RNBQ1RK1 b - -"
"Sicilian: modern Scheveningen, main line","r1bq1rk1/pp2bppp/2nppn2/8/3NPP2/2N1B3/PPP1B1PP/R2Q1RK1 b - -"
"Nimzo-Indian: 4.e3, main line","r1bq1rk1/pp3ppp/2n1pn2/2p5/2BP4/P1P1PN2/5PPP/R1BQ1RK1 b - -"
"Grunfeld: exchange, Simagin's improved variation","r1bq1rk1/ppp1ppbp/2n3p1/8/2BPP3/2P5/P3NPPP/R1BQK2R w KQ -"
"QGD: Orthodox defense, 7.Rc1","r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2N1PN2/PP3PPP/2RQKB1R b K -"
"Four Knights: Marshall variation","r1bq1rk1/pppp1ppp/5n2/1Bb1N3/3nP3/2N5/PPPP1PPP/R1BQ1RK1 w - -"
"Sicilian: closed, 6.Ne2 e5 (Botvinnik)","r1bqk1nr/pp3pbp/2np2p1/2p1p3/4P3/2NP2P1/PPP1NPBP/R1BQK2R w KQkq -"
"Pirc defense *","r1bqk1nr/ppp1bppp/2n5/3pp3/8/3P1NP1/PPP1PP1P/RNBQKB1R w KQkq -"
"Caro-Kann: Forgacs variation *","r1bqk1nr/ppp2ppp/8/2bp4/8/2P2P2/PP3PPP/RNBQKB1R w KQkq -"
"Giuoco Piano: Jerome gambit","r1bqk1nr/pppp1Bpp/2n5/2b1p3/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq -"
"Vienna game *","r1bqk1nr/pppp1ppp/2n5/2b1p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Hungarian defense","r1bqk1nr/ppppbppp/2n5/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Ruy Lopez: Exchange variation doubly deferred (DERLD)","r1bqk2r/1pppbppp/p1B2n2/4p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 b kq -"
"Evans gambit declined, Showalter variation *","r1bqk2r/2pp1ppp/2n2n2/ppb1p3/4P3/PBN5/1PPP1PPP/R1BQK1NR w KQkq -"
"Sicilian: classical *","r1bqk2r/ppp1bppp/2n5/3np3/8/2NP1N2/PP2PPPP/R1BQKB1R w KQkq -"
"Nimzo-Indian: 4.e3 e8g8, 5.Nf3, without ...d5 *","r1bqkb1r/pp3ppp/2n1pn2/1Bpp4/8/4PN2/PPPP1PPP/RNBQ1RK1 w kq -"
"Caro-Kann: Two Knights variation *","r1bqkb1r/pppp1ppp/2n2n2/4p3/3P4/2P5/PP2PPPP/RNBQKBNR w KQkq -"
"Sicilian: chameleon variation *","r1bqkb1r/ppppnppp/2n5/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -"
"French: Winawer, advance variation *","r1bqkbnr/2p2ppp/p1p5/3p4/2PPp3/4P3/PP3PPP/RNBQK1NR w KQkq -"
"Nimzo-Indian: Samisch variation *","r1bqkbnr/5ppp/p1p1p3/2pp4/2P5/4PN2/PP1P1PPP/RNBQK2R w KQkq -"
"Caro-Kann: Steinitz variation","r1bqkbnr/pp1npppp/2p5/8/3PN3/8/PPP2PPP/R1BQKBNR w KQkq -"
"English: symmetrical variation *","r1bqkbnr/pp1ppp1p/2n3p1/2p5/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq -"
"Modern defense: Averbakh system *","r1bqkbnr/pp3ppp/2n5/2ppp3/8/3P2P1/PPP1PPBP/RNBQK1NR w KQkq -"
"Caro-Kann defense *","r1bqkbnr/ppp2ppp/8/3pn3/8/2P5/PP2PPPP/RNBQKBNR w KQkq -"
"Caro-Kann: 3.Nd2 *","r1bqkbnr/pppn1ppp/8/3pp3/3P4/2P5/PP2PPPP/RNBQKBNR w KQkq -"
"Sicilian: closed *","r1bqkbnr/pppp1ppp/2n5/4p3/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"Ruy Lopez: closed, Breyer, Gligoric variation *","r1bqr1k1/ppbn1pp1/2p2n1p/3pp3/1PP1P3/P2P1N2/1B1NBPPP/R2Q1RK1 b - -"
"Ruy Lopez: open, Dilworth variation","r2q1rk1/2p2ppp/p1n1b3/1pbpP3/8/2P2N2/PPBN1nPP/R1BQ1RK1 w - -"
"Sicilian: Dragon, classical, Bernard defense *","r2q1rk1/pp4pp/1nnpb3/4p3/N2P1p2/5NP1/PP2PPBP/R2Q1RK1 b - -"
"Sicilian: Richter-Rauzer, Larsen variation","r2qkb1r/pp1bpppp/2np1n2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R w KQkq -"
"French: MacCutcheon, Bernstein variation *","r2qkbnr/ppp2ppp/2n5/1B1p3b/3Pp3/4PN1P/PPP2PP1/RNBQK2R w KQkq -"
"QGD: Cambridge Springs defense, Argentine variation *","r3kb1r/ppqn1ppp/2n1p3/1Bpp3b/Q2P4/2P1PN2/PP1N1PPP/R1B2RK1 w kq -"
"English, Smyslov defense","rn1qkbnr/ppp2ppp/3p4/4p3/2P3b1/2N2N2/PP1PPPPP/R1BQKB1R w KQkq -"
"Sicilian: Stiletto (Althouse) variation","rnb1kbnr/pp1ppppp/8/q1p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Sicilian: wing gambit, Marienbad variation","rnb1kbnr/pp2pppp/8/3q4/1p6/P7/1BPP1PPP/RN1QKBNR b KQkq -"
"French: advance, Nimzovich variation *","rnb1kbnr/ppp2ppp/8/3p2q1/2PPp3/4P3/PP3PPP/RNBQKBNR w KQkq -"
"Evans gambit: normal variation *","rnbq1rk1/p4ppp/5n2/2bpp3/8/1BNP4/PPP2PPP/R1BQK1NR b KQ -"
"Robatsch (modern) defense","rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"French: Albin-Alekhine-Chatard attack, Maroczy variation","rnbqk2r/1ppnbppp/p3p3/3pP1B1/3P3P/2N5/PPP2PP1/R2QKBNR w KQkq -"
"Giuoco Piano *","rnbqk2r/pp3ppp/2p2n2/2bpp3/2B1P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq -"
"Ruy Lopez: Berlin defense, Mortimer trap *","rnbqk2r/ppp2ppp/3p4/4p3/1b2n3/2P2N2/PP1PNPPP/R1BQKB1R b KQkq -"
"French: MacCutcheon variation","rnbqk2r/ppp2ppp/4pn2/3p2B1/1b1PP3/2N5/PPP2PPP/R2QKBNR w KQkq -"
"Scotch gambit *","rnbqk2r/ppp2ppp/5n2/1BbPp3/8/2N5/PPPP1PPP/R1BQK1NR b KQkq -"
"Reti: King's Indian attack, Reti-Smyslov variation *","rnbqkb1r/p1pppp1p/5np1/1p6/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -"
"QGD Slav: Slav gambit","rnbqkb1r/pp2pppp/2p2n2/8/2pPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq -"
"QGD: Spielmann variation","rnbqkb1r/pp3p1p/2p1pnp1/3p4/2PP4/4PN2/PP1N1PPP/R1BQKB1R w KQkq -"
"QGD semi-Slav: Botvinnik system (anti-Meran)","rnbqkb1r/pp3ppp/2p1pn2/6B1/2pPP3/2N2N2/PP3PPP/R2QKB1R b KQkq -"
"Scandinavian defense","rnbqkb1r/ppp1pppp/5n2/3P4/3P4/8/PPP2PPP/RNBQKBNR b KQkq -"
"Scotch: Potter variation *","rnbqkb1r/ppp2ppp/1n6/4p3/2B5/2N5/PPPP1PPP/R1BQK1NR w KQkq -"
"QGD: exchange variation","rnbqkb1r/ppp2ppp/4pn2/3P4/3P4/2N5/PP2PPPP/R1BQKBNR b KQkq -"
"Queen's pawn: Yusupov-Rubinstein system *","rnbqkb1r/ppp2ppp/4pn2/3p4/8/4PN2/PPPP1PPP/RNBQKB1R w KQkq -"
"KGA: bishop's gambit, Bogolyubov variation","rnbqkb1r/pppp1ppp/5n2/8/2B1Pp2/2N5/PPPP2PP/R1BQK1NR b KQkq -"
"Reti opening *","rnbqkb1r/pppppppp/5n2/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Global opening *","rnbqkbnr/1pppppp1/p6p/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Caro-Kann: anti-Caro-Kann defense *","rnbqkbnr/pp1p1ppp/8/2p1p3/8/2P5/PP1PPPPP/RNBQKBNR w KQkq -"
"Sicilian: Hungarian variation","rnbqkbnr/pp1ppp1p/6p1/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"English: symmetrical variation","rnbqkbnr/pp1ppppp/8/2p5/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"Sicilian: Smith-Morra gambit","rnbqkbnr/pp1ppppp/8/8/3pP3/2P5/PP3PPP/RNBQKBNR b KQkq -"
"QGA: 3.e4","rnbqkbnr/ppp1pppp/8/8/2pPP3/8/PP3PPP/RNBQKBNR b KQkq -"
"French: exchange variation","rnbqkbnr/ppp2ppp/4p3/3P4/3P4/8/PPP2PPP/RNBQKBNR b KQkq -"
"Philidor: Lopez counter-gambit","rnbqkbnr/ppp3pp/3p4/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"KP: King's head opening *","rnbqkbnr/pppp2pp/5p2/4p3/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Latvian counter-gambit","rnbqkbnr/pppp2pp/8/4pp2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Bird's opening *","rnbqkbnr/ppppp1pp/8/5p2/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Alekhine's defense: Brooklyn defense","rnbqkbnr/pppppppp/8/4P3/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Blackburne shilling gambit *","rnbqkr2/ppppbp1p/5N2/4Q3/8/8/PPPP1nPP/R1B1KBNR b KQq -"
"Sicilian: Nimzovich-Rossolimo attack, Gurgenidze variation *","rnbqr1k1/p1pp1ppp/5n2/1p2p3/1bP1P3/2N3P1/PP1P1PBP/R1BQK1NR w KQ -"
"Ruy Lopez: closed *","rnbqr1k1/pppp1ppp/1b3n2/4p3/1P2P3/P1N2N2/2PPBPPP/R1BQK2R w KQ -"
"Reti opening","rnbqkbnr/ppp1pppp/8/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq c3"
"English: Neo-Catalan accepted","r1bqkb1r/pp1n1ppp/4pn2/2p5/2Q5/5NP1/PP1PPPBP/RNB1K2R w KQkq c6"
"Robatsch defence (4.c4)","r2qk1nr/ppp1ppbp/2np2p1/8/2PPP1b1/5N2/PP2BPPP/RNBQK2R w KQkq -"
"Robatsch defence: three pawns attack","rnbqk1nr/ppp1ppbp/3p2p1/8/3PPP2/8/PPP3PP/RNBQKBNR w KQkq -"
"Pirc-Queen's pawn-KID-East Indian","rnbqk2r/ppppppbp/5np1/8/3P4/5N2/PPPNPPPP/R1BQKB1R w KQkq -"
"Ruy Lopez: Archangel variation","r1bqk2r/2pp1ppp/p1n2n2/1pb1p3/4P3/1B3N2/PPPP1PPP/RNBQ1RK1 w kq -"
"French defence, Steiner variation","rnbqkbnr/pppp1ppp/4p3/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq c3"
"QGD: Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation","r1bqkbnr/pp3ppp/2n5/3p4/2pPP3/2N2NP1/PP3P1P/R1BQKB1R b KQkq e3"
"King's Indian defence","rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq -"
"French: Steinitz, Brodsky-Jones variation *","r1b1kb1r/1pp3pp/p1n2n2/5pq1/2BPp3/2N1PP2/PP1N2PP/R1BQ1RK1 b kq -"
"Scotch: Fraser attack","r1b1kbnr/pppp1ppp/2n5/8/4P2q/5N2/PPP2PPP/RNBQKB1R b KQkq -"
"Ruy Lopez: closed, Chigorin defense","r1b2rk1/2q1bppp/p2p1n2/npp1p3/3PP3/2P2N1P/PPB2PP1/RNBQR1K1 w - -"
"KGA: bishop's gambit, McDonnell attack *","r1bq1knr/pppp3p/2n3p1/2b1pP1Q/6P1/8/PPPP1PBP/RNB1K1NR w KQ -"
"English: symmetrical, hedgehog system *","r1bq1rk1/pp1pppbp/2n2np1/2p5/2P5/1P2PN2/PB1PBPPP/RN1QK2R b KQ -"
"Ruy Lopez: Berlin defense, hedgehog variation *","r1bq1rk1/ppp2ppp/2n2n2/3pp3/1b2P3/2NP1N2/PPPBBPPP/R2QK2R b KQ -"
"Ruy Lopez: classical defense, 4.c3","r1bqk1nr/pppp1ppp/2n5/1Bb1p3/4P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq -"
"KGA: bishop's gambit, Paulsen attack *","r1bqk1nr/pppp2pp/2n5/1Bb2P2/4p3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"French: Winawer, Alekhine gambit, Alatortsev variation *","r1bqk2r/1pp1bppp/p5n1/3pn3/8/2N1PN2/PPP1BPPP/R1BQ1RK1 b kq -"
"Sicilian: Scheveningen (Paulsen), classical variation *","r1bqk2r/ppp1bppp/2n5/3np3/8/P2PPN2/1P3PPP/RNBQKB1R b KQkq -"
"Sicilian: Sozin, Benko variation *","r1bqk2r/ppp2ppp/2n5/2bnp3/8/1QNP1N2/PP2PPPP/R1B1KB1R b KQkq -"
"Sicilian: Pin, Jaffe variation *","r1bqk2r/ppp2ppp/2nb4/1B1np3/4P3/5N2/PP1P1PPP/RNBQK2R b KQkq -"
"Two Knights defense","r1bqkb1r/p4pp1/2p2n1p/n3p1N1/8/8/PPPPBPPP/RNBQK2R w KQkq -"
"English: symmetrical, Four Knights system *","r1bqkb1r/pp1ppppp/2n2n2/2p5/2P5/2N2N2/PP1PPPPP/R1BQKB1R b KQkq -"
"KGA: Quaade gambit *","r1bqkb1r/pppp2pp/2n2n2/4pP2/6P1/8/PPPP1P1P/RNBQKBNR w KQkq -"
"Old Indian: Janowski variation *","r1bqkbnr/pp2pppp/2n5/2pp4/5B2/3P1N2/PPP1PPPP/RN1QKB1R b KQkq -"
"QGD: Tarrasch defense, 4.cd ed *","r1bqkbnr/pp2pppp/2n5/3p4/2PP4/8/PP3PPP/RNBQKBNR b KQkq -"
"Benoni: classical with ...Re8 and ...Na6","r1bqr1k1/pp3pbp/n2p1np1/2pP4/4P3/2N5/PP1NBPPP/R1BQ1RK1 w - -"
"Ruy Lopez: closed, Chigorin, 12...c5d4 *","r1bqr1k1/ppbn1pp1/5n1p/3pp3/NP2P3/P2P1N2/2Q1BPPP/R1B2RK1 w - -"
"Ruy Lopez: closed, Breyer, Gligoric variation","r2q1rk1/1b1nbppp/p2p1n2/1pp1p3/3PP3/2P2N1P/PPBN1PP1/R1BQR1K1 w - -"
"Ruy Lopez: closed, Kholmov variation","r2q1rk1/2p1bppp/p1npbn2/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - -"
"QGD: 4.Bg5 Be7 *","r2qkbnr/pp2pppp/2n5/2pp4/3P2b1/4PN2/PPP1BPPP/RNBQK2R b KQkq -"
"Bogo-Indian defense, Monticelli trap *","r3k2r/ppq1ppbp/2N3p1/2pp4/6n1/1P2P3/PBPP1PPP/RN1Q1RK1 w kq -"
"Sicilian: Dragon, classical, Stockholm attack *","r4rk1/ppp1q2p/2n1b3/4p1p1/Q4p2/3P1NP1/PP2PPBP/R4RK1 w - -"
"Caro-Kann: classical, 6.h4","rn1qkbnr/pp2pppp/2p3b1/8/3P3P/6N1/PPP2PP1/R1BQKBNR b KQkq -"
"KGA: double Muzio gambit *","rnb2rk1/pppp2pp/5q2/5P2/4Q3/8/PPPP1b1P/RNB1KBNR w KQ -"
"Dutch: stonewall with Nc3","rnbq1rk1/pp2b1pp/2p1pn2/3p1p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"French: Winawer, advance, Bogolyubov variation","rnbqk1nr/pp3ppp/4p3/2ppP3/1b1P4/2N5/PPPB1PPP/R2QKBNR b KQkq -"
"French: Winawer, Alekhine (Maroczy) gambit","rnbqk1nr/ppp2ppp/4p3/3p4/1b1PP3/2N5/PPP1NPPP/R1BQKB1R b KQkq -"
"Ruy Lopez: classical defense, Boden variation *","rnbqk2r/pp1p1ppp/2p2n2/4p3/1bB1P3/2N5/PPPPQPPP/R1B1K1NR b KQkq -"
"Queen's Indian: Rubinstein variation *","rnbqk2r/pp2ppbp/6p1/2p4n/2PP4/1P3N2/PB1P1PPP/RN1QKB1R w KQkq -"
"Giuoco Piano: Anderssen variation *","rnbqk2r/pp3ppp/5n2/1B1pN3/1b1Pp3/2N5/PPP2PPP/R1BQK2R b KQkq -"
"Nimzo-Indian: Kmoch variation","rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N2P2/PP2P1PP/R1BQKBNR b KQkq -"
"KGA: Salvio gambit *","rnbqk2r/pppp2pp/8/2b1pPP1/4n3/8/PPPP1P1P/RNBQKBNR w KQkq -"
"French: Steinitz variation","rnbqkb1r/pp1n1ppp/4p3/2ppP3/3P1P2/2N2N2/PPP3PP/R1BQKB1R b KQkq -"
"Pirc: 150 attack","rnbqkb1r/pp2pp1p/2pp1np1/8/3PP3/2N1B3/PPPQ1PPP/R3KBNR b KQkq -"
"QGD: exchange, positional line, 6.Qc2","rnbqkb1r/pp3ppp/2p2n2/3p2B1/3P4/2N5/PPQ1PPPP/R3KBNR b KQkq -"
"King's Indian: East Indian defense *","rnbqkb1r/ppp1pppp/5n2/3p4/8/5NP1/PPPPPP1P/RNBQKB1R b KQkq -"
"QGD","rnbqkb1r/ppp2ppp/4pn2/3p2B1/2PP4/5N2/PP2PPPP/RN1QKB1R b KQkq -"
"Vienna gambit","rnbqkb1r/pppp1ppp/5n2/4p3/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq -"
"KGA: Schallop defense","rnbqkb1r/pppp1ppp/5n2/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq -"
"Petrov: Paulsen attack *","rnbqkb1r/pppp1ppp/8/2n1p3/8/3P1N2/PPP2PPP/RNBQKB1R w KQkq -"
"KGA: bishop's gambit, Steinitz defense","rnbqkb1r/ppppnppp/8/8/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq -"
"Paleface attack","rnbqkb1r/pppppppp/5n2/8/3P4/5P2/PPP1P1PP/RNBQKBNR b KQkq -"
"QGA: Alekhine defense","rnbqkbnr/1pp1pppp/p7/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq -"
"Nimzovich-Larsen attack: symmetrical variation *","rnbqkbnr/p1pppppp/1p6/8/8/1P6/P1PPPPPP/RNBQKBNR b KQkq -"
"Caro-Kann: 3.Nd2","rnbqkbnr/pp2pppp/2p5/3p4/3PP3/8/PPPN1PPP/R1BQKBNR b KQkq -"
"Dutch *","rnbqkbnr/ppp1pppp/8/3p4/5P2/8/PPPPP1PP/RNBQKBNR b KQkq -"
"Reti: Nimzovich-Larsen attack","rnbqkbnr/ppp1pppp/8/3p4/8/1P3N2/P1PPPPPP/RNBQKB1R b KQkq -"
"Corn stalk defense *","rnbqkbnr/pppp1ppp/8/4p3/P7/8/1PPPPPPP/RNBQKBNR b KQkq -"
"English opening","rnbqkbnr/pppppppp/8/8/2P5/8/PP1PPPPP/RNBQKBNR b KQkq -"
"Ruy Lopez: closed, Lutikov variation *","rnbqr1k1/ppbp1ppp/2p2n2/4p3/1P2P3/P1NP1N2/2P1BPPP/R1BQ1RK1 w - -"
"Reti: King's Indian attack, Neo-closed Sicilian","r1bqk1nr/pp1pppbp/2n3p1/2p5/4P3/3P1NP1/PPP2PBP/RNBQK2R b KQkq -"
"English: Caro-Kann defensive system","rnbqkbnr/pp2pppp/2p5/3p4/2P5/4PN2/PP1P1PPP/RNBQKB1R b KQkq -"
"French: Winawer, classical variation (7.Nf3)","rnb1k1nr/ppq2ppp/4p3/2ppP3/3P4/P1P2N2/2P2PPP/R1BQKB1R b KQkq -"
"Dutch: Staunton gambit, Tartakower variation","rnbqkb1r/ppppp1pp/5n2/8/3Pp1P1/2N5/PPP2P1P/R1BQKBNR b KQkq g3"
"Vienna game (4.d3)","r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/2NP4/PPP2PPP/R1BQK1NR b KQkq -"
"Sicilian: Nimzovich variation","r1bqkbnr/pp2pppp/2n5/3p4/3NP3/8/PPP2PPP/RNBQKB1R w KQkq d6"
"Sicilian: Pelikan, Chelyabinsk variation","r1bqkb1r/5ppp/p1np1n2/1p2p1B1/4P3/N1N5/PPP2PPP/R2QKB1R w KQkq b6"
"Sicilian: Sveshnikov (5...e6)","r1bqkb1r/1p3ppp/p1np1n2/4p1B1/4P3/N1N5/PPP2PPP/R2QKB1R b KQkq -"
"Sicilian: dragon, classical, Alekhine variation","r1bq1rk1/1p2ppbp/2np1np1/p7/4P3/1NN1B3/PPP1BPPP/R2Q1RK1 w - a6"
"QGD: semi-Slav (without Nc3)","r1bq1rk1/pp3pp1/2pbpn1p/8/2PPB3/1P3N2/P4PPP/R1BQ1RK1 w - -"
"QGD: Orthodox defense *","2rqkb1r/pp3ppp/2n1pn2/2pp4/3P2b1/2P1PN2/PP1NBPPP/R1BQ1RK1 b k -"
"QGD: Orthodox defense, Swiss, Karlsbad variation *","2rqkb1r/pp3ppp/2n1pn2/3p4/3p2b1/P3PN2/1PPNBPPP/R1BQ1RK1 w k -"
"Four Knights: Rubinstein counter-gambit, Bogolyubov variation","r1b1kb1r/ppppqppp/5n2/1B2N3/3nPP2/2N5/PPPP2PP/R1BQK2R b KQkq -"
"French: Steinitz, Bradford attack *","r1b1kbnr/ppp3pp/2n5/5pq1/2BPp3/4P3/PP1N1PPP/RNBQK2R w KQkq -"
"Sicilian: Dragon, Yugoslav attack, Byrne variation","r1bq1rk1/1p2ppbp/2np1np1/p7/2BNP3/2N1BP2/PPPQ2PP/R3K2R w KQ -"
"Philidor: Nimzovich, Sozin variation","r1bq1rk1/pp1nbppp/2pp1n2/8/P1BpP3/2N2N2/1PP1QPPP/R1B2RK1 w - -"
"King's Indian: 5.Be2 *","r1bqk1nr/pp2bppp/2n5/2ppp3/8/3P1NP1/PPP1PPBP/RNBQK2R w KQkq -"
"English: symmetrical variation","r1bqk2r/pp1pppbp/2n2np1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQK2R w KQkq -"
"English: symmetrical variation *","r1bqk2r/pp1pppbp/2n2np1/2p5/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq -"
"Sicilian: accelerated fianchetto, Breyer variation","r1bqk2r/pp1pppbp/2n3p1/8/2PNP1n1/2N1B3/PP3PPP/R2QKB1R w KQkq -"
"Pirc: Austrian attack, 6.Bd3 *","r1bqk2r/ppp3pp/2nb1n2/3ppp2/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"Boden-Kieseritsky gambit: Lichtenhein defense *","r1bqk2r/pppp1ppp/2n2n2/2b1N3/3PP3/8/PPP2PPP/RNBQKB1R b KQkq -"
"QGD: Tarrasch, Prague variation","r1bqkb1r/pp3ppp/2n2n2/2pp4/3P4/2N2NP1/PP2PP1P/R1BQKB1R w KQkq -"
"French: Winawer, Alekhine (Maroczy) gambit *","r1bqkb1r/ppp1nppp/2n5/1B1pp3/3P4/4P3/PPP2PPP/RNBQK1NR w KQkq -"
"Amsterdam attack","r1bqkb1r/ppp2ppp/2np1n2/4p3/2P5/1PN1P3/P2P1PPP/R1BQKBNR w KQkq -"
"Vienna gambit, Wurzburger trap *","r1bqkb1r/ppp4p/3p1nN1/8/3np2Q/8/PPP2PPP/RNB1KB1R w KQkq -"
"Ruy Lopez: open Berlin defense, Showalter variation","r1bqkb1r/pppp1ppp/2nn4/4p3/B2P4/5N2/PPP2PPP/RNBQ1RK1 b kq -"
"Sicilian: Taimanov variation","r1bqkbnr/1p1p1ppp/p1n1p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq -"
"de Bruycker defense","r1bqkbnr/ppnppppp/2p5/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"Caro-Kann defense *","r1bqkbnr/ppp2ppp/2n5/3pp3/3P4/2P5/PP2PPPP/RNBQKBNR w KQkq -"
"Alekhine's defense: Samisch attack *","r1bqkbnr/pppp1ppp/2n5/8/3Np3/8/PPPPPPPP/RNBQKB1R w KQkq -"
"Ruy Lopez: Pollock defense","r1bqkbnr/pppp1ppp/8/nB2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Queen's pawn: Lundin (Kevitz-Mikenas) defense","r1bqkbnr/pppppppp/2n5/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Petrov: classical attack, Berger variation *","r1bqr1k1/pp1n1ppp/2pb1n2/3pN1B1/3P1P2/2N5/PPP1B1PP/R2QK2R w KQ -"
"King's Indian: orthodox, 7...Nbd7, main line *","r1bqrbk1/pp3ppp/2n2n2/2ppp3/P3P3/2PP1NP1/1P1N1PBP/R1BQ1RK1 b - -"
"French: Steinitz, Boleslavsky variation *","r2qkb1r/ppp3pp/2n1bn2/3p1p2/2PPp3/2N1P3/PP1N1PPP/R1BQKB1R w KQkq -"
"Caro-Kann: classical, 7...Nd7","r2qkbnr/pp1nppp1/2p3bp/8/3P3P/5NN1/PPP2PP1/R1BQKB1R w KQkq -"
"Grunfeld: Stockholm variation *","r2qkbnr/pp2pppp/2n5/2pp4/3P2b1/5NP1/PPP1PP1P/RNBQKB1R w KQkq -"
"Pirc: Byrne variation *","r2qkbnr/ppp2ppp/2n5/3pp3/6b1/3P1NP1/PPP1PP1P/RNBQKB1R w KQkq -"
"KGA: Kieseritsky, Salvio defense, Cozio variation","rnb1kbnr/ppppq2p/8/4Np2/2BPPppP/8/PPP3P1/RNBQK2R b KQkq -"
"KGA: Muzio gambit, From defense *","rnb2rk1/pppp2pp/5q2/2b1pP2/8/8/PPPPQP1P/RNB1KBNR b KQ -"
"Grunfeld: Russian, Levenfish variation","rnbq1rk1/p1p1ppbp/1p3np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R w KQ -"
"Nimzo-Indian: Samisch, Botvinnik variation","rnbq1rk1/pp3ppp/4p3/2pn4/3P4/P1P1PP2/6PP/R1BQKBNR w KQ -"
"Ruy Lopez: Steinitz defense deferred, Rubinstein variation *","rnbq1rk1/ppp2ppp/5n2/3pN3/4P3/P1PP4/2P2PPP/R1BQKB1R b KQ -"
"Ruy Lopez: 5.O-O *","rnbq1rk1/pppp1ppp/5n2/b3p3/4P3/P1N2N2/1PPP1PPP/R1BQKB1R w KQ -"
"French: Schlechter variation *","rnbqk1nr/ppp2ppp/3b4/3pp3/3P4/4P3/PPP2PPP/RNBQKBNR w KQkq -"
"KGD: classical, Reti variation","rnbqk1nr/ppp3pp/8/2b2p2/2BpP3/2P2N2/PP4PP/RNBQK2R b KQkq -"
"KGA: bishop's gambit, Ruy Lopez defense *","rnbqk1nr/pppp2pp/8/2b1pP2/8/2P5/PP1P1PPP/RNBQKBNR b KQkq -"
"Evans gambit declined *","rnbqk2r/p1pp1ppp/5n2/1pb1p3/2B1P3/2N5/PPPP1PPP/R1BQK1NR w KQkq -"
"Two Knights defense: Fritz variation *","rnbqk2r/pppp1ppp/8/2bN4/3pP1n1/5N2/PPP2PPP/R1BQKB1R b KQkq -"
"Ponziani counter-gambit, Schmidt attack *","rnbqkb1r/pp3ppp/2p2n2/4p3/3pPP2/2NP4/PPP3PP/R1BQKBNR w KQkq -"
"Philidor: Nimzovich variation","rnbqkb1r/ppp2ppp/3p1n2/4P3/4P3/5N2/PPP2PPP/RNBQKB1R b KQkq -"
"Dory defense","rnbqkb1r/pppp1ppp/4p3/8/2PPn3/5N2/PP2PPPP/RNBQKB1R w KQkq -"
"Queen's pawn game","rnbqkb1r/pppp1ppp/4pn2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"KGA: Kieseritsky, Kolisch defense *","rnbqkb1r/pppp2p1/8/4pPPp/4n3/3P4/PPP2P1P/RNBQKBNR b KQkq -"
"French: Tarrasch, open, 4.ed ed","rnbqkbnr/pp3ppp/8/2pp4/3P4/8/PPPN1PPP/R1BQKBNR w KQkq -"
"Blackmar gambit *","rnbqkbnr/ppp2ppp/8/3pp3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Van't Kruijs opening *","rnbqkbnr/pppp1ppp/4p3/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Reti: Pirc-Lisitsin gambit","rnbqkbnr/ppppp1pp/8/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq e3"
"Centre game: Kieseritsky variation","rnbqkbnr/p2p1ppp/8/1pp5/2BpP3/5N2/PPP2PPP/RNBQK2R w KQkq b6"
"Alekhine's defence","rnbqkb1r/ppp1pppp/3p4/3nP3/2PP4/8/PP3PPP/RNBQKBNR b KQkq c3"
"KGA: bishop's gambit, Lopez-Gianutio counter-gambit","rnbqkbnr/pppp2pp/8/5p2/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq f6"
"Pirc: Ufimtsev-Pytel variation (Pribyl defence)","rn1qkb1r/pp3ppp/2pppn2/8/3PP1b1/2N2N2/PPP1BPPP/R1BQK2R w KQkq -"
"Caro-Kann: Panov-Botvinnik attack (5...e6)","rnbqk2r/pp3ppp/4p3/3n4/1b1P4/2N2N2/PP3PPP/R1BQKB1R w KQkq -"
"Sicilian: Labourdonnais-Loewenthal variation","r1bqkbnr/pp1p1ppp/2n5/4p3/3NP3/8/PPP2PPP/RNBQKB1R w KQkq e6"
"Sicilian: Taimanov variation (5...d6)","r1bqkbnr/pp3ppp/2npp3/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq -"
"Sicilian: Scheveningen, Keres attack","rnbqkb1r/pp3ppp/3ppn2/8/3NP1P1/2N5/PPP2P1P/R1BQKB1R b KQkq g3"
"King's Indian: classical variation","rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQK2R w KQ e6"
"Sicilian: Dragon, Yugoslav attack, 10.O-O-O *","2kr3r/pppq2pp/2n1bp2/2bnp3/8/2NP1NP1/PP1BPPBP/R2Q1RK1 w - -"
"QGD: Orthodox defense, Rubinstein attack, Grunfeld variation *","2r1kb1r/1pq2ppp/p1n1pn2/2pp4/3P2b1/P1P1PN2/1P1NBPPP/R1BQ1RK1 w k -"
"QGD: Orthodox defense, Rubinstein attack (with Rc1) *","2r1kb1r/ppq2ppp/2n1pn2/2pp4/3P2b1/2P1PN2/PP1NBPPP/R1BQ1RK1 w k -"
"Sicilian: Taimanov variation","r1b1kbnr/1pqp1ppp/p1n1p3/8/3NP3/2N1B3/PPP1BPPP/R2QK2R b KQkq -"
"Giuoco Piano: Bernstein variation *","r1b2rk1/p4ppp/1qB2n2/2bp4/3P4/2N5/PPP2PPP/R1BQK2R b KQ -"
"Vienna: Hamppe-Muzio, Dubois variation *","r1b2rk1/pppp2pp/2n5/2b1pq2/4N3/5Q2/PPPP1P1P/R1B1KBNR b KQ -"
"Benoni: classical, 11.f3 *","r1bq1rk1/pp1nb1pp/2n2p2/4p3/2Pp4/N2P1NP1/PP3PBP/R1BQR1K1 w - -"
"QGD: Orthodox defense, Rauzer variation","r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/1QN1PN2/PP3PPP/R3KB1R b KQ -"
"QGD Slav: Carlsbad variation *","r1bqkb1r/1p2pp1p/2n3p1/p1np4/4PB2/2P2N2/PPQN1PPP/R3KB1R b KQkq -"
"English: Bradley Beach variation *","r1bqkb1r/pp2pppp/2n2n2/2ppP3/8/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"Four Knights: Scotch, Krause variation *","r1bqkb1r/ppp2ppp/2n5/1B1pp3/4n3/2N2N2/PPPP1PPP/R1BQK2R w KQkq -"
"French: Fort Knox variation *","r1bqkb1r/ppp2ppp/5n2/3pn3/8/2B1P3/PPP2PPP/RN1QKBNR b KQkq -"
"Two Knights defense","r1bqkb1r/pppp1ppp/2n2n2/4p3/2BPP3/5N2/PPP2PPP/RNBQK2R b KQkq -"
"English: Four Knights, kingside fianchetto","r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N2NP1/PP1PPP1P/R1BQKB1R b KQkq -"
"Nimzo-Indian: Samisch, Botvinnik variation *","r1bqkbnr/6pp/p1p1pp2/3p4/2PN4/4P3/PP3PPP/RNBQ1RK1 b kq -"
"English: symmetrical variation *","r1bqkbnr/pp1ppppp/2n5/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq -"
"Grunfeld: exchange variation *","r1bqkbnr/pp2pppp/2n5/3p4/3N4/6P1/PPP1PP1P/RNBQKB1R b KQkq -"
"Caro-Kann: Gurgenidze system *","r1bqkbnr/ppp2ppp/2n5/3pp3/3P4/2P3P1/PP2PP1P/RNBQKBNR b KQkq -"
"Caro-Kann: classical variation *","r1bqkbnr/ppp2ppp/8/3pn3/5B2/2P5/PP2PPPP/RN1QKBNR b KQkq -"
"Grunfeld: exchange, Seville variation","r2q1rk1/pp2pBbp/6p1/n1p5/3PP1b1/2P1BP2/P3N1PP/R2Q1RK1 b - -"
"Scotch gambit: Anderssen (Paulsen, Suhle) counter-attack","r2qk1nr/ppp2ppp/2np4/2b5/2BpP1b1/2P2N2/PP3PPP/RNBQ1RK1 w kq -"
"Two Knights: Max Lange attack, Loman defense","r2qk2r/ppp2p1p/2n1bPp1/2b3N1/2pp4/8/PPP2PPP/RNBQR1K1 w kq -"
"Queen's Indian: 4.Nc3, main line *","r2qkb1r/pp2pppp/2n2n2/1Bpp3b/8/1P2PN1P/PBPP1PP1/RN1QK2R b KQkq -"
"QGD: Semi-Tarrasch *","r2qkbnr/pp2pppp/2n5/3p4/2Pp2b1/4PN2/PP3PPP/RNBQKB1R w KQkq -"
"Two Knights defense: Yurdansky attack","r4b1r/ppp1kp2/2n1bN1p/q5p1/1P1p3B/5N2/P1P2PPP/R2QR1K1 b - -"
"Queen's Indian: anti-Queen's Indian system","rn1qk2r/pbppbppp/1p2pn2/8/2PP4/2N2NP1/PP2PPBP/R1BQK2R b KQkq -"
"Caro-Kann: advance, Short variation","rn1qkbnr/pp3ppp/2p1p3/3pPb2/3P4/2P5/PP2BPPP/RNBQK1NR b KQkq -"
"KGA: Cunningham, three pawns gambit *","rnbq1r1k/pppp3P/5n2/2b1p2B/8/8/PPPP1PPP/RNBQK1NR w KQ -"
"Pirc: Austrian attack, 6.e5","rnbq1rk1/ppp1ppbp/3p1np1/4P3/3P1P2/2N2N2/PPP3PP/R1BQKB1R b KQ -"
"Dutch: Leningrad, Basman system *","rnbq1rk1/ppp1ppbp/5np1/3p4/5P2/2P3PN/PP1PP1BP/RNBQK2R b KQ -"
"King's Indian: Petrosian system","rnbq1rk1/ppp2pbp/3p1np1/3Pp3/2P1P3/2N2N2/PP2BPPP/R1BQK2R b KQ -"
"Nimzo-Indian: 4.e3, Botvinnik system","rnbq1rk1/ppp2ppp/4pn2/3p4/2PP4/P1PBP3/5PPP/R1BQK1NR b KQ -"
"Nimzo-Indian: Reshevsky variation","rnbq1rk1/pppp1ppp/4pn2/8/1bPP4/2N1P3/PP2NPPP/R1BQKB1R b KQ -"
"Dutch defense *","rnbqk1nr/ppp1ppbp/6p1/3p4/5P2/5NP1/PPPPP2P/RNBQKB1R b KQkq -"
"Nimzo-Indian: Samisch variation","rnbqk2r/pp1p1ppp/4pn2/2p5/2PP4/P1P1P3/5PPP/R1BQKBNR b KQkq -"
"Nimzo-Indian: Three Knights, Korchnoi variation","rnbqk2r/pp1p1ppp/4pn2/2pP4/1bP5/2N2N2/PP2PPPP/R1BQKB1R b KQkq -"
"Benoni: Taimanov variation","rnbqk2r/pp3pbp/3p1np1/1BpP4/4PP2/2N5/PP4PP/R1BQK1NR b KQkq -"
"Two Knights defense, Perreux variation *","rnbqk2r/ppp2ppp/8/2bPp3/6n1/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"Two Knights defense *","rnbqk2r/pppp1ppp/5n2/2b1p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"Two Knights defense: Wilkes Barre (Traxler) variation *","rnbqk2r/pppp1ppp/8/2b1p3/2B1P1n1/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"Ponziani: Romanishin variation *","rnbqkb1r/pp1p1ppp/2p2n2/4p3/4P3/2N5/PPPPBPPP/R1BQK1NR b KQkq -"
"Alekhine's defense: Kmoch variation","rnbqkb1r/pp1ppppp/1n6/2p1P3/8/1B1P4/PPP2PPP/RNBQK1NR b KQkq -"
"English opening: Agincourt variation *","rnbqkb1r/pp1ppppp/5n2/2p5/3P4/4P3/PPP2PPP/RNBQKBNR b KQkq -"
"Caro-Kann: Panov-Botvinnik, Gunderam attack","rnbqkb1r/pp2pppp/5n2/2Pp4/3P4/8/PP3PPP/RNBQKBNR b KQkq -"
"Grunfeld: 4.Bf4","rnbqkb1r/ppp1pp1p/5np1/3p4/2PP1B2/2N5/PP2PPPP/R2QKBNR b KQkq -"
"Philidor: Philidor counter-gambit *","rnbqkb1r/ppp2ppp/5n2/3pp3/4PP2/3P4/PPP3PP/RNBQKBNR b KQkq -"
"KGA: Kieseritsky, Berlin defense","rnbqkb1r/pppp1p1p/5n2/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq -"
"Alekhine's defense","rnbqkb1r/pppppppp/8/3nP3/2P5/8/PP1P1PPP/RNBQKBNR b KQkq -"
"English: Anglo-Dutch defense *","rnbqkbnr/pp1ppppp/8/2p5/5P2/8/PPPPP1PP/RNBQKBNR b KQkq -"
"Sicilian","rnbqkbnr/pp2pppp/3p4/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"French: advance, Nimzovich system","rnbqkbnr/pp3ppp/4p3/2ppP3/3P4/5N2/PPP2PPP/RNBQKB1R b KQkq -"
"Scandinavian: Kiel variation *","rnbqkbnr/pp3ppp/8/1Npp4/8/8/PPP1PPPP/RNBQKB1R b KQkq -"
"Old Benoni defense *","rnbqkbnr/ppp1pppp/8/3p4/2P5/8/PP1PPPPP/RNBQKBNR b KQkq -"
"French: advance variation","rnbqkbnr/ppp2ppp/4p3/3pP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq -"
"KGA: Becker defense","rnbqkbnr/pppp1pp1/7p/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq -"
"English opening","rnbqkbnr/pppp1ppp/8/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq -"
"Durkin's attack","rnbqkbnr/pppppppp/8/8/8/N7/PPPPPPPP/R1BQKBNR b KQkq -"
"Anderssen's opening","rnbqkbnr/pppppppp/8/8/8/P7/1PPPPPPP/RNBQKBNR b KQkq -"
"English: Kurajica exchange","rnbqkbnr/pp3ppp/2p1p3/8/2p5/6P1/PPQPPPBP/RNB1K1NR w KQkq -"
"English: Bremen, modern line","rnbq1rk1/1p3pbp/2pp1np1/p3p3/2P5/2NP1NP1/PP2PPBP/1RBQ1RK1 w - a6"
"Benoni: Saemisch formation","rnbqkb1r/pp3p1p/3p1np1/2pP4/4P3/2N2P2/PP4PP/R1BQKBNR b KQkq -"
"KGD: classical counter-gambit","rnbqk1nr/ppp3pp/3p4/2b1pp2/4PP2/2P2N2/PP1P2PP/RNBQKB1R w KQkq f6"
"Robatsch defence","rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2P2N2/PPQ2PPP/RNB1KB1R b KQkq -"
"Sicilian: closed (6.f4)","r1bqk1nr/pp2ppbp/2np2p1/2p5/4PP2/2NP2P1/PPP3BP/R1BQK1NR b KQkq f3"
"Two knights defence","r1bqkb1r/pppp1ppp/2n2n2/4p3/2BPP3/5N2/PPP2PPP/RNBQK2R b KQkq d3"
"The Lemberger Counter (Blackmar) gambit","rnbqkbnr/ppp2ppp/8/4p3/3Pp3/2N5/PPP2PPP/R1BQKBNR w KQkq e6"
"Lagenheinicke defence","rnbqkb1r/ppp1pppp/5n2/8/3P4/2N1pP2/PPP3PP/R1BQKBNR w KQkq -"
"QGD Slav: Dutch, Saemisch variation","rn1q1rk1/pp3ppp/2p1p3/5b2/PbBPn1P1/2N1PN2/1P2QP1P/R1B2RK1 b - g3"
"QGA: Alekhine defence, Borisenko-Furman variation","rnbqkbnr/1pp1pppp/p7/8/2pPP3/5N2/PP3PPP/RNBQKB1R b KQkq e3"
"Gruenfeld (...c5 dxc5)","rnb1k2r/pp2ppbp/5np1/q1Pp4/2P2B2/2N1P3/PP3PPP/2RQKBNR b Kkq -"
"Catalan: open (5.Nf3 Nc6)","r1bqkb1r/ppp2ppp/2n1pn2/8/2pP4/5NP1/PP2PPBP/RNBQK2R w KQkq -"
"Nimzo-Indian: Leningrad (...b5 gambit)","rnbqk2r/p2p1pp1/4pn1p/1ppP4/1bP4B/2N5/PP2PPPP/R2QKBNR w KQkq b6"
"King's Indian: Kluger variation","rnbq1rk1/pp3pbp/3ppnp1/2pP4/2P1P3/2NB1N1P/PP3PP1/R1BQK2R b KQ -"
"Ruy Lopez: Marshall, main line, Spassky variation","5rk1/5ppp/p1pbr3/1p1n3q/P2P2b1/1BPQB1P1/1P1N1P1P/R3R1K1 w - -"
"QGD: Orthodox defense, classical, 13.d1c2 (Vidmar)","r1b2rk1/pp1nqppp/2p5/4p3/2BP4/2R1PN2/PPQ2PPP/5RK1 b - -"
"Ruy Lopez: Marshall counter-attack, 11...c6","r1bq1rk1/4bppp/p1p5/1p1nR3/8/1BP5/PP1P1PPP/RNBQ2K1 w - -"
"QGD: Orthodox defense, 7.Qc2 c5, 8.cd (Rubinstein)","r1bq1rk1/pp1nbppp/4pn2/2pP2B1/3P4/2N1PN2/PPQ2PPP/R3KB1R b KQ -"
"King's Indian: orthodox, 7...Nbd7 *","r1bq1rk1/pp2bppp/2n2n2/2ppp3/4P3/3P1NP1/PPPN1PBP/R1BQ1RK1 b - -"
"King's Indian: fianchetto, Simagin variation *","r1bq1rk1/pp2ppbp/2n2np1/2pp2B1/8/2NP1NP1/PPP1PPBP/R2Q1RK1 b - -"
"Dutch: Leningrad, main variation with c6 *","r1bq1rk1/pp2ppbp/2n2np1/2pp4/5P2/2PP1NP1/PP2P1BP/RNBQ1RK1 b - -"
"Catalan: closed, 7.Qc2","r1bq1rk1/pppnbppp/4pn2/3p4/2PP4/5NP1/PPQ1PPBP/RNB2RK1 b - -"
"Giuoco Piano: Krause variation","r1bq3r/ppp3pp/5k2/3pN3/1n1Pn3/1Q3P2/PP4PP/RN2K2R b KQ -"
"Ruy Lopez: Lucena defense","r1bqk1nr/ppppbppp/2n5/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"QGD semi-Slav: Bogolyubov variation","r1bqk2r/pp1nbppp/2p1pn2/3p4/2PP4/2NBPN2/PP3PPP/R1BQK2R w KQkq -"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7","r1bqk2r/pp2bppp/2nppn2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R w KQkq -"
"Sicilian: Sozin, not Scheveningen *","r1bqk2r/ppp2ppp/2n5/2bnp3/8/2NP1N2/PP2PPPP/R1BQKB1R w KQkq -"
"English: Four Knights, Marini variation *","r1bqkb1r/1p1ppppp/p1n2n2/2p5/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"Ruy Lopez: open, Harksen gambit","r1bqkb1r/2p2ppp/p1n5/1p1pp3/2PPn3/1B3N2/PP3PPP/RNBQ1RK1 b kq -"
"QGD semi-Slav: Meran variation","r1bqkb1r/p2n1ppp/2p1pn2/1p6/2BP4/2N1PN2/PP3PPP/R1BQK2R w KQkq -"
"QGD semi-Slav: 5.e3 *","r1bqkb1r/pp3ppp/2n1pn2/2pp4/3P4/2P1PN2/PP3PPP/RNBQKB1R w KQkq -"
"Caro-Kann: classical, Spassky variation *","r1bqkb1r/ppp2pp1/5nn1/3p4/7p/2P3BP/PP1NPPP1/R2QKBNR w KQkq -"
"Sicilian: Scheveningen, 6.f4 *","r1bqkb1r/ppp3pp/2n5/3npp2/8/3PPN2/PP3PPP/RNBQKB1R w KQkq -"
"English: Four Knights system","r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq -"
"Vienna: Adams' gambit","r1bqkb1r/pppp1ppp/2nn4/4p2Q/3P4/1BN5/PPP2PPP/R1B1K1NR b KQkq -"
"Ruy Lopez: fianchetto (Smyslov/Barnes) defense","r1bqkbnr/pppp1p1p/2n3p1/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"French defense *","r1bqkbnr/pppp1ppp/2n5/4p3/8/4P3/PPPP1PPP/RNBQKBNR w KQkq -"
"Vienna gambit","r1bqkbnr/pppp1ppp/2n5/8/4Pp2/2N2N2/PPPP2PP/R1BQKB1R b KQkq -"
"Ruy Lopez: closed, Chigorin, Rauzer attack *","r1bqr1k1/ppbn1pp1/2p2n1p/4p3/1Pp1P3/P1NP1N2/2Q1BPPP/R1B2RK1 w - -"
"Ruy Lopez: Berlin defense, Tarrasch trap *","r1bqr1k1/ppp2ppp/2n2n2/3pp3/1b2P3/2NP1N2/PPPBBPPP/R2Q1RK1 b - -"
"Sicilian: Dragon, classical, 8.O-O *","r2q1rk1/ppp1bppp/2n1b3/3np3/8/2NP1NP1/PP2PPBP/R1BQK2R w KQ -"
"French: Winawer, fingerslip variation *","r2qkbnr/pppb1ppp/2n5/1B1pp3/3P4/4P3/PPP2PPP/RNBQK1NR w KQkq -"
"QGD: Orthodox defense, Rauzer variation *","r3kb1r/pp3ppp/1qn1pn2/2pp4/3P2b1/4PN2/PPPNBPPP/R1BQ1RK1 w kq -"
"Caro-Kann: exchange, Rubinstein variation *","rn1qk1nr/pp3ppp/2pb4/3p1b2/3P4/2N2N2/PP2PPPP/R1BQKB1R w KQkq -"
"Benko gambit: Nd2 variation","rn1qkb1r/4pp1p/b2p1np1/2pP4/8/2N5/PP1NPPPP/R1BQKB1R b KQkq -"
"KGA: bishop's gambit, Grimm attack","rnb1k1nr/ppp2pbp/3p4/4P1p1/2BP1p1q/2N5/PPP3PP/R1BQ1KNR b kq -"
"Bishop's opening: del Rio variation","rnb1k1nr/pppp1ppp/8/2b1p1q1/2B1P3/2P5/PP1P1PPP/RNBQK1NR w KQkq -"
"KGD: classical, Marshall attack *","rnb1kb1r/pp1p2pp/2p2n2/q3p1B1/2B1P3/8/PPP2PPP/RN1QK1NR w KQkq -"
"French: Frere (Becker) variation","rnb1kbnr/ppp2ppp/4p3/3q4/3PN3/8/PPP2PPP/R1BQKBNR w KQkq -"
"KGA: double Muzio gambit","rnb1kbnr/pppp1B1p/8/4q3/5p2/5Q2/PPPP2PP/RNB2RK1 b kq -"
"KGD: Keene's defense","rnb1kbnr/ppppqppp/8/4p3/4PP2/6P1/PPPP3P/RNBQKBNR w KQkq -"
"Danish gambit: Collijn defense","rnb1kbnr/ppppqppp/8/8/2B1P3/8/PB3PPP/RN1QK1NR w KQkq -"
"Ruy Lopez: open, Howell attack, Adam variation *","rnb2rk1/pp2qppp/1b3n2/2p1N3/1P1Pp3/P1N1B3/2P1BPPP/R2QK2R w KQ -"
"KGA: Salvio gambit, Anderssen counter-attack *","rnbq1k1r/ppp3pp/8/2bppPPQ/4n3/3P3N/PPP2P1P/RNB1KB1R b KQ -"
"Ruy Lopez: Wing attack *","rnbq1rk1/1ppp1ppp/1b3n2/p3p3/1P2P3/P1N2N2/2PPBPPP/R1BQK2R w KQ -"
"King's Indian: Samisch, orthodox, 7.Nge2 c6","rnbq1rk1/pp3pbp/2pp1np1/4p3/2PPP3/2N1BP2/PP2N1PP/R2QKB1R w KQ -"
"Sicilian: Kan, Polugaievsky variation","rnbqk1nr/1p1p1ppp/p3p3/2b5/3NP3/3B4/PPP2PPP/RNBQK2R w KQkq -"
"Bishop's opening: Ponziani gambit *","rnbqk1nr/ppp2ppp/8/2bpp3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Tayler opening *","rnbqk2r/ppp1bppp/5n2/3pp3/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"Sicilian: Najdorf, 6...e6","rnbqkb1r/1p3ppp/p2ppn2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R w KQkq -"
"Two Knights defense: Fritz, Gruber variation *","rnbqkb1r/pp1p1ppp/2p5/3Nn3/1P1NP3/8/P1P2PPP/R1BQKB1R w KQkq -"
"Reti opening *","rnbqkb1r/pp1ppppp/5n2/2p5/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"QGD Slav accepted: Alapin variation","rnbqkb1r/pp2pppp/2p2n2/8/P1pP4/2N2N2/1P2PPPP/R1BQKB1R b KQkq -"
"Blumenfeld counter-gambit accepted *","rnbqkb1r/pp2pppp/5n2/8/1pPP4/4PN2/P5PP/RNBQKB1R b KQkq -"
"KGA: Bonsch-Osmolovsky variation *","rnbqkb1r/pppp2pp/5n2/4pP2/8/8/PPPPNPPP/RNBQKB1R b KQkq -"
"Reti opening","rnbqkb1r/pppppppp/5n2/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"QGA: Alekhine defense, Borisenko-Furman variation","rnbqkbnr/1pp1pppp/p7/8/2pPP3/5N2/PP3PPP/RNBQKB1R b KQkq -"
"Caro-Kann defense","rnbqkbnr/pp1ppppp/2p5/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"King's Indian: 3.g3 *","rnbqkbnr/pp2pp1p/6p1/2pp4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -"
"Queen's pawn game","rnbqkbnr/ppp1pppp/8/3p4/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"KGA: Muzio gambit","rnbqkbnr/pppp1p1p/8/8/2B1Ppp1/5N2/PPPP2PP/RNBQ1RK1 b kq -"
"KGA: Schurig gambit","rnbqkbnr/pppp1ppp/8/8/4Pp2/3B4/PPPP2PP/RNBQK1NR b KQkq -"
"Reti v Dutch","rnbqkbnr/ppppp1pp/8/5p2/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"Dutch: Staunton gambit deferred","rnbqkbnr/pppp2pp/4p3/5p2/2PPP3/8/PP3PPP/RNBQKBNR b KQkq e3"
"Sicilian: Taimanov variation","r1b1kbnr/1pqp1ppp/p1n1p3/8/3NP3/2N1B3/PPP2PPP/R2QKB1R w KQkq -"
"Ruy Lopez: modern Steinitz defence, Duras (Keres) variation","r1bqkbnr/1pp2ppp/p1np4/4p3/B1P1P3/5N2/PP1P1PPP/RNBQK2R b KQkq c3"
"QGD: Tartakower (Kasparov-Beliavsky) system","rnbqk2r/ppp1bpp1/5n1p/3p2B1/3P4/2N1P3/PP3PPP/R2QKBNR w KQkq -"
"Gruenfeld: exchange, Spassky variation","rnbq1rk1/pp2ppbp/6p1/2p5/2BPP3/2P5/P3NPPP/R1BQK2R w KQ c6"
"Blumenfeld counter-gambit accepted","rnbqkb1r/p5pp/4pn2/1Ppp4/8/5N2/PP2PPPP/RNBQKB1R w KQkq d6"
"King's Indian defence (Bf4)","rnbq1rk1/pp2ppbp/3p1np1/2p5/2PP1B2/2N2N1P/PP2PPP1/R2QKB1R w KQ c6"
"Grunfeld: Russian, Szabo (Boleslavsky) variation *","r1b1kb1r/pp3ppp/2n2n2/2qpp3/8/2P2NP1/PP2PPBP/RNBQ1RK1 b kq -"
"Vienna: Steinitz gambit, Zukertort defense","r1b1kbnr/ppp2ppp/2n5/3p4/3PPp1q/2N5/PPP1K1PP/R1BQ1BNR w kq -"
"Ruy Lopez: open, Malkin variation *","r1b2rk1/pp1nqppp/1bp2n2/4N3/1P1Pp3/P1N1B3/2P1BPPP/R2Q1RK1 w - -"
"French: classical, Stahlberg variation","r1b2rk1/pp1nqppp/2n1p3/3pP3/2pP1P2/2N2N2/PPPQ2PP/2KR1B1R w - -"
"KGA: Kieseritsky, Brentano defense, Kaplanek variation *","r1bq1b1r/ppp2kp1/2n5/1B1p1PPp/3Qn3/5N2/PPP2P1P/RNB1K2R w KQ -"
"QGD: Tarrasch, Reti variation *","r1bq1rk1/pp2ppbp/5np1/n7/2BP4/2N2N2/PP3PPP/R1BQ1RK1 w - -"
"Four Knights: symmetrical variation","r1bq1rk1/ppp2ppp/2np1n2/1B2p3/1b2P3/2NP1N2/PPP2PPP/R1BQ1RK1 w - -"
"King's Indian: fianchetto, classical variation","r1bq1rk1/pppn1pbp/3p1np1/4p3/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"Evans gambit: Leonhardt variation","r1bqk1nr/p1pp1ppp/2n5/bp2p3/2BPP3/2P2N2/P4PPP/RNBQK2R w KQkq -"
"Sicilian: Nimzovich-Rossolimo attack, Gurgenidze variation","r1bqk1nr/pp1p1pbp/2n3p1/1Bp1p3/1P2P3/5N2/P1PP1PPP/RNBQR1K1 b kq -"
"Sicilian: closed, 6.f4","r1bqk1nr/pp2ppbp/2np2p1/2p5/4PP2/2NP2P1/PPP3BP/R1BQK1NR b KQkq -"
"Nimzo-Indian: 4.e3 O-O, 5.Bd3 d5 *","r1bqk1nr/pp3ppp/2nbp3/1Bpp4/3P4/4PN2/PPP2PPP/RNBQ1RK1 b kq -"
"Evans gambit: 5...Be7","r1bqk1nr/ppppbppp/2n5/4p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq -"
"QGD: Tarrasch, Prague variation, 7...Be7 *","r1bqk2r/pp2ppbp/2n2np1/3p4/2PP4/2N2N2/PP2BPPP/R1BQK2R b KQkq -"
"QGD semi-Slav: Meran, Pirc variation *","r1bqk2r/pp3ppp/2nb1n2/1P1pp3/8/P1P1PN2/3N1PPP/R1BQKB1R b KQkq -"
"Scotch: Tartakower variation","r1bqkb1r/p1pp1ppp/2p2n2/8/4P3/8/PPPN1PPP/R1BQKB1R b KQkq -"
"Nimzo-Indian: 4.e3, Bronstein (Byrne) variation *","r1bqkb1r/pp2nppp/2n1p3/1Bpp4/8/BP2PN2/P1PP1PPP/RN1QK2R b KQkq -"
"QGD: Semi-Tarrasch defense *","r1bqkb1r/pp2pppp/2n2n2/2pp4/2PP4/4PN2/PP3PPP/RNBQKB1R b KQkq -"
"Four Knights: Rubinstein counter-gambit, 5.Be2","r1bqkb1r/pppp1ppp/5n2/4p3/3nP3/2N2N2/PPPPBPPP/R1BQK2R b KQkq -"
"Nimzo-Indian: Samisch variation *","r1bqkbnr/4pppp/p1p5/2pp4/8/4PN2/PPPP1PPP/RNBQ1RK1 b kq -"
"Grunfeld defense *","r1bqkbnr/pp2pppp/2n5/2pp4/3P4/5NP1/PPP1PP1P/RNBQKB1R b KQkq -"
"Vienna: Hamppe-Allgaier gambit, Alapin variation","r1bqkbnr/ppp2p1p/2np4/6N1/4PppP/2N5/PPPP2P1/R1BQKB1R w KQkq -"
"King's pawn game","r1bqkbnr/pppp1ppp/2n5/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R b KQkq -"
"King's Indian: Samisch, Byrne variation *","r2qk1nr/pp4pp/2nbbp2/2ppp3/8/P1PP1NP1/1P2PPBP/RNBQ1RK1 b kq -"
"Sicilian: Pelikan, Bird variation *","r2qkb1r/ppp2ppp/n1n5/4p3/4P1b1/P1NPBN2/1P3PPP/R2QKB1R b KQkq -"
"Ruy Lopez: Siesta, Kopayev variation","r2qkbnr/1pp3pp/p1np4/4pb2/B7/2P2N2/PP1P1PPP/RNBQ1RK1 b kq -"
"Nimzo-Indian: Leningrad, ...b5 gambit *","r2qkbnr/pp2pppp/2n5/1Bp4b/1PPp4/4PN1P/P2P1PP1/RNBQK2R b KQkq -"
"Sicilian: Najdorf, Browne variation *","r3kb1r/ppp3pp/2n2q2/3npp1b/8/P2PPN1P/1PQ1BPP1/RNB1K2R b KQkq -"
"Alekhine's defense: four pawns attack, Korchnoi variation","rn1q1rk1/ppp1b1pp/1n2pp2/4Pb2/2PP4/2N2N2/PP2B1PP/R1BQ1RK1 w - -"
"QGD Slav: Czech defense","rn1qkb1r/pp2pppp/2p2n2/5b2/P1pP4/2N2N2/1P2PPPP/R1BQKB1R w KQkq -"
"Alekhine's defense: modern, Panov variation","rn1qkb1r/ppp1pppp/3p4/3nP3/3P2b1/5N1P/PPP2PP1/RNBQKB1R b KQkq -"
"KGD: Falkbeer, Charousek gambit *","rnb1kbnr/ppp1q1pp/8/4Np2/3p4/8/PPP2PPP/RNBQKB1R w KQkq -"
"Evans gambit *","rnbq1rk1/p2p1ppp/2p2n2/2b1p3/B3P3/2N5/PPPP1PPP/R1BQK1NR w KQ -"
"Ruy Lopez: Steinitz defense deferred (Russian defense) *","rnbq1rk1/pppp1ppp/5n2/b3p3/4P3/P1NP1N2/1PP2PPP/R1BQKB1R b KQ -"
"Evans counter-gambit *","rnbqk2r/p1pp1ppp/5n2/1pb1p3/2BPP3/2N5/PPP2PPP/R1BQK1NR b KQkq -"
"Ruy Lopez: Cordel gambit *","rnbqk2r/pp1p1ppp/2p2n2/4p3/1bB1PP2/2N5/PPPP2PP/R1BQK1NR b KQkq -"
"Catalan: open, classical line","rnbqk2r/ppp1bppp/4pn2/8/2pP4/5NP1/PP2PPBP/RNBQK2R w KQkq -"
"King's Indian: 5.Be2","rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N5/PP2BPPP/R1BQK1NR b KQkq -"
"Two Knights defense: Pincus variation *","rnbqk2r/ppp2ppp/8/1Bbp4/3NP1n1/2N5/PPP2PPP/R1BQK2R b KQkq -"
"Ruy Lopez: Classical defense deferred *","rnbqk2r/pppp1ppp/5n2/b3p3/2B1P3/P1N5/1PPP1PPP/R1BQK1NR b KQkq -"
"KGA: Allgaier, Walker attack *","rnbqk2r/pppp2p1/8/2b1pPPp/8/7P/PPPP1K2/RNBQ1BNR w kq -"
"Philidor: Nimzovich, Rellstab variation","rnbqkb1r/ppp2ppp/3p4/3QP3/4n3/5N2/PPP2PPP/RNB1KB1R b KQkq -"
"Alekhine's defense: modern, fianchetto variation *","rnbqkb1r/ppp2ppp/5n2/3p4/3Np3/3P2P1/PPP1PP1P/RNBQKB1R b KQkq -"
"Vienna gambit","rnbqkb1r/ppp2ppp/8/3pP3/4n3/2NP4/PPP3PP/R1BQKBNR b KQkq -"
"KGA: Sorensen gambit *","rnbqkb1r/ppp3pp/8/3ppPP1/4n3/8/PPPP1P1P/RNBQKBNR w KQkq -"
"Queen's pawn game","rnbqkb1r/pppp1ppp/4pn2/8/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq -"
"KGD: classical, Soldatenkov variation *","rnbqkb1r/pppp2pp/5n2/4p3/2B1p3/3P4/PPP2PPP/RNBQK1NR w KQkq -"
"Caro-Kann: Goldman (Spielmann) variation","rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N2Q2/PPPP1PPP/R1B1KBNR b KQkq -"
"Caro-Kann defense","rnbqkbnr/pp2pppp/2p5/8/3PN3/8/PPP2PPP/R1BQKBNR b KQkq -"
"Benoni defense *","rnbqkbnr/pp2pppp/8/2pp4/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq -"
"Queen's gambit declined","rnbqkbnr/ppp1pppp/8/3p4/2PP4/8/PP2PPPP/RNBQKBNR b KQkq -"
"French: Alapin variation","rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/4B3/PPP2PPP/RN1QKBNR b KQkq -"
"Semi-Benoni (`blockade variation') *","rnbqkbnr/ppp2ppp/8/4p3/2PpP3/3P4/PP3PPP/RNBQKBNR b KQkq -"
"KGD: Falkbeer, 4.d3 *","rnbqkbnr/ppp3pp/3p4/4Pp2/3p4/8/PPP2PPP/RNBQKBNR w KQkq -"
"Reversed Grob (Borg/Basman defense/macho Grob) *","rnbqkbnr/pppp1ppp/8/4p3/6P1/8/PPPPPP1P/RNBQKBNR b KQkq -"
"King's gambit accepted","rnbqkbnr/pppp1ppp/8/8/4Pp2/8/PPPP2PP/RNBQKBNR w KQkq -"
"Saragossa opening","rnbqkbnr/pppppppp/8/8/8/2P5/PP1PPPPP/RNBQKBNR b KQkq -"
"Ware (Meadow Hay) opening","rnbqkbnr/pppppppp/8/8/P7/8/1PPPPPPP/RNBQKBNR b KQkq -"
"Nimzovich-Larsen attack: classical variation","rnbqkbnr/ppp1pppp/8/3p4/8/1P6/P1PPPPPP/RNBQKBNR w KQkq d6"
"English: Caro-Kann defensive system","rnbqkbnr/pp2pppp/2p5/3p4/2P5/5N2/PPQPPPPP/RNB1KB1R b KQkq -"
"English: closed, Old Indian formation","rnbqk1nr/pp2b1pp/2pp4/5p2/2PPp3/2N3PN/PP2PP1P/R1BQKB1R b KQkq -"
"Modern defence: Averbakh system, Randspringer variation","rnbqk1nr/ppp1p1bp/3p2p1/5p2/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq f6"
"Evans counter-gambit","r1bqk1nr/ppp2ppp/2n5/2bpp3/1PB1P3/5N2/P1PP1PPP/RNBQK2R w KQkq d6"
"Sicilian: Kopec system","rnbqkb1r/pp2pppp/3p1n2/2p5/4P3/2PB1N2/PP1P1PPP/RNBQK2R b KQkq -"
"French: Labourdonnais variation","rnbqkbnr/pppp1ppp/4p3/8/4PP2/8/PPPP2PP/RNBQKBNR b KQkq f3"
"Blackmar-Diemer: Huebsch gambit","rnbqkb1r/ppp1pppp/8/3p4/3Pn3/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"QGA: classical (7...b5)","rnbqkb1r/5ppp/p3pn2/1pp5/2BP4/4PN2/PP2QPPP/RNB2RK1 w kq b6"
"QGD: semi-Slav","rnb1kb1r/pp3pp1/2p1pq1p/3p4/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQkq -"
"QGD: Tarrasch, Stoltz variation *","2rq1rk1/pp2ppbp/2n2np1/3p4/2PP2b1/1PN1BN2/P3BPPP/R2Q1RK1 b - -"
"Two Knights defense: Knorre variation","r1b1k2r/p1q2pp1/2pb1n1p/n3N3/3Pp3/8/PPPBBPPP/RN1QK2R b KQkq -"
"Nimzo-Indian: classical, Pirc variation *","r1b1kbnr/ppq1pppp/2n5/1Bp5/2p5/4PN2/PP1P1PPP/RNBQ1RK1 b kq -"
"Four Knights: Svenonius variation *","r1bq1rk1/p1p2ppp/2pp1n2/4p3/1b1PP3/2N2N2/PPP2PPP/R1BQ1RK1 b - -"
"QGD: Orthodox defense, Capablanca variation","r1bq1rk1/p1pnbppp/1p3n2/1B1p2B1/3P4/2N1PN2/PP3PPP/2RQK2R b K -"
"Benoni: fianchetto, 9...Nbd7 *","r1bq1rk1/pp2ppbp/2n2np1/8/2Pp4/3P1NP1/PP1N1PBP/R1BQ1RK1 b - -"
"Four Knights: Rubinstein counter-gambit Maroczy variation *","r1bq1rk1/ppp2ppp/3p1b2/n3p3/4P3/1B1P1N2/PPP2PPP/R1BQ1RK1 b - -"
"English: closed system (without ...d6) *","r1bqk1nr/pp2ppbp/2np2p1/2p5/4P3/2N3P1/PPPP1PBP/R1BQK1NR w KQkq -"
"QGD semi-Slav: 6.Bd3 *","r1bqk2r/pp3ppp/2nbpn2/2pp4/3P4/2P1PN2/PP1N1PPP/R1BQKB1R w KQkq -"
"Giuoco Pianissimo: Italian Four Knights variation *","r1bqk2r/ppp2ppp/2np1n2/2b1p3/2B1P3/2N2N2/PPPP1PPP/R1BQK2R w KQkq -"
"Four Knights: Rubinstein counter-gambit, 5.Be2 *","r1bqk2r/ppppbppp/2n2n2/3Np3/4P3/5N2/PPPP1PPP/R1BQKB1R w KQkq -"
"Ruy Lopez: Treybal (Bayreuth) variation (exchange var. deferred)","r1bqkb1r/1ppp1ppp/p1B2n2/4p3/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq -"
"Sicilian: Nimzovich-Rubinstein; Rubinstein counter-gambit","r1bqkb1r/pp1p1ppp/2n5/2ppP3/3P4/5N2/PPP2PPP/R1BQKB1R w KQkq -"
"Queen's Indian: 4.Nc3 *","r1bqkb1r/pp2pppp/2n2n2/2pp4/8/1P2PN2/P1PP1PPP/RNBQKB1R w KQkq -"
"Sicilian: Boleslavsky, Louma variation","r1bqkb1r/pp3ppp/2Np1n2/4p3/4P3/2N5/PPP1BPPP/R1BQK2R b KQkq -"
"Pirc: classical, h3 system *","r1bqkb1r/ppp2pp1/2n2n1p/3pp3/8/3P1NP1/PPP1PPBP/RNBQK2R w KQkq -"
"Caro-Kann: classical, Flohr variation *","r1bqkb1r/ppp2ppp/6nn/3p4/8/2P3B1/PP2PPPP/RN1QKBNR w KQkq -"
"Petrov: Nimzovich attack *","r1bqkb1r/pppp1ppp/2n2n2/4N3/8/3P4/PPP2PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: Caro variation","r1bqkbnr/2pp1ppp/p1n5/1p2p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Sicilian: closed, 2...Nc6","r1bqkbnr/pp1ppppp/2n5/2p5/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"Nimzo-Indian: Romanishin-Kasparov (Steiner) system *","r1bqkbnr/pp2pp1p/2n3p1/1Bpp4/8/4PN2/PPPP1PPP/RNBQK2R w KQkq -"
"King's Indian: 4.e4 *","r1bqkbnr/pp3ppp/2n5/2ppp3/8/5NP1/PPPPPPBP/RNBQK2R w KQkq -"
"Benoni: Mikenas variation *","r1bqkbnr/pp4pp/2n5/5p2/2Ppp3/3P1NP1/PP3PBP/RNBQK2R w KQkq -"
"QGD: Albin counter-gambit, 5.g3","r1bqkbnr/ppp2ppp/2n5/4P3/2Pp4/5NP1/PP2PP1P/RNBQKB1R b KQkq -"
"Ponziani: Steinitz variation","r1bqkbnr/ppp3pp/2n2p2/3pp3/Q3P3/2P2N2/PP1P1PPP/RNB1KB1R w KQkq -"
"Robatsch defense: Pseudo-Austrian attack *","r1bqkbnr/ppp3pp/2n5/3ppp2/8/3P2P1/PPP1PPBP/RNBQK1NR w KQkq -"
"Vienna: Paulsen variation *","r1bqkbnr/pppp1p1p/2n3p1/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"English: Sicilian reversed","r1bqkbnr/pppp1ppp/2n5/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -"
"Scotch: Goring gambit","r1bqkbnr/pppp1ppp/2n5/8/3pP3/2P2N2/PP3PPP/RNBQKB1R b KQkq -"
"Sicilian: Dragon, Yugoslav attack, 12.h4","r1r3k1/pp1bppbp/2np1np1/q7/3NP2P/1BN1BP2/PPPQ2P1/2KR3R b - -"
"Four Knights: symmetrical, Blake variation *","r2q1rk1/ppp2ppp/1bnp4/1B2p2n/3PP1b1/2PQ1N2/PP2NPPP/R1B2RK1 b - -"
"Benoni: Uhlmann variation *","r2qkb1r/pp2pppp/2n2n2/8/2Pp2b1/3P1NP1/PP3P1P/RNBQKB1R w KQkq -"
"Grunfeld with Bf4 & e3 *","r2qkb1r/pp3ppp/2n1pn2/2pp1b2/3P4/5NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"Sicilian: Richter-Rauzer, Podebrady variation *","r2qkb1r/ppp2ppp/1nn5/4p3/6b1/2NPPN2/PP3PPP/R1BQKB1R w KQkq -"
"Sicilian: Najdorf, 7.f4 *","r2qkb1r/ppp3pp/2n5/3npp2/6b1/P2PPN2/1P3PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: exchange variation, Alapin gambit","r2qkbnr/1pp2pp1/p1p5/4p2p/4P1b1/5N1P/PPPP1PP1/RNBQ1RK1 w kq -"
"French: classical, Anderssen-Richter variation *","r3kbnr/ppp2ppp/2n5/3p2q1/3Pp3/4P3/PPP1BPPP/RNBQK2R w KQkq -"
"QGD Slav: Dutch, Samisch variation","rn1q1rk1/pp3ppp/2p1p3/5b2/PbBPn1P1/2N1PN2/1P2QP1P/R1B2RK1 b - -"
"QGD Slav: 4.e3 Bf5","rn1qkb1r/pp2pppp/2p2n2/3p1b2/2PP4/4PN2/PP3PPP/RNBQKB1R w KQkq -"
"Sicilian, Chekhover variation *","rnb1kb1r/ppp2ppp/5n2/3qp3/8/3P4/PP2PPPP/RNBQKBNR w KQkq -"
"Dutch: Hort-Antoshin system","rnb1kb1r/ppq1p1pp/2pp1n2/5p2/2PP4/2N3P1/PP2PPBP/R1BQK1NR w KQkq -"
"Dutch, Von Pretzel gambit *","rnb1kbnr/ppp1pp1p/3q4/3p2p1/5P2/4P3/PPPP2PP/RNBQKBNR w KQkq -"
"Dutch: Ilyin-Genevsky, Winter variation","rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PP2PPBP/R1BQR1K1 b - -"
"KGA: Allgaier, Blackburne gambit","rnbq1bnr/pppp1k2/7p/8/4PppP/2N5/PPPP2P1/R1BQKB1R b KQ -"
"QGA: classical, Rubinstein variation *","rnbq1rk1/1p3ppp/4pn2/p1bp4/2P5/P3PN2/1P3PPP/RNBQKB1R w KQ -"
"Grunfeld: Russian, Alekhine (Hungarian) variation","rnbq1rk1/1pp1ppbp/p4np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R w KQ -"
"Petrov: classical attack, Jaenisch variation *","rnbq1rk1/pp3ppp/3b1n2/2ppN3/3P4/2N5/PPP1BPPP/R1BQK2R w KQ -"
"QGD: Lasker defense","rnbq1rk1/ppp1bpp1/4p2p/3p4/2PPn2B/2N1PN2/PP3PPP/R2QKB1R w KQ -"
"Neo-Grunfeld, 6.cd Nxd5, 7.O-O","rnbq1rk1/ppp1ppbp/6p1/3n4/3P4/5NP1/PP2PPBP/RNBQ1RK1 b - -"
"King's Indian: Samisch, orthodox variation","rnbq1rk1/ppp2pbp/3p1np1/4p3/2PPP3/2N1BP2/PP4PP/R2QKBNR w KQ -"
"Ruy Lopez: open, Friess attack *","rnbq1rk1/ppp2ppp/8/b2pN3/1P2n3/P1N5/2PP1PPP/R1BQKB1R w KQ -"
"Ruy Lopez: open (Tarrasch) defense *","rnbq1rk1/pppp1ppp/5n2/b3N3/4P3/P1N5/1PPP1PPP/R1BQKB1R b KQ -"
"French: Winawer, advance, Rauzer variation","rnbqk1nr/pp3ppp/4p3/3pP3/1P6/2p2N2/1PP2PPP/R1BQKB1R b KQkq -"
"QGD: Albin counter-gambit, Lasker trap","rnbqk1nr/ppp2ppp/8/4P3/1bP5/4p3/PP1B1PPP/RN1QKBNR w KQkq -"
"Giuoco Pianissimo *","rnbqk2r/ppp2ppp/3p1n2/2b1p3/2B1P3/2N5/PPPP1PPP/R1BQK1NR w KQkq -"
"Philidor: Lopez counter-gambit, Jaenisch variation *","rnbqk2r/ppp2ppp/8/2bPp3/5P2/3P3N/PPP3Pn/RNBQKB1R w KQkq -"
"English: Nimzo-English opening","rnbqk2r/pppp1ppp/4pn2/8/1bP5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq -"
"Two Knights defense *","rnbqk2r/pppp1ppp/8/2b1p3/4P1n1/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"Two Knights defense: Goring variation *","rnbqk2r/ppppbppp/8/4P3/N3n3/2P2N1P/P1Q2PP1/R1B1KB1R b KQkq -"
"Sicilian: Najdorf, Polugayevsky variation","rnbqkb1r/5ppp/p2ppn2/1p4B1/3NPP2/2N5/PPP3PP/R2QKB1R w KQkq -"
"English, Nimzovich variation *","rnbqkb1r/pp1ppppp/5n2/2p5/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Vulture defense","rnbqkb1r/pp1ppppp/8/2pP4/2P1n3/8/PP2PPPP/RNBQKBNR w KQkq -"
"Benoni defense","rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N2N2/PP2PPPP/R1BQKB1R w KQkq -"
"Neo-Grunfeld (Kemeri) defense","rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq -"
"Old Indian defense","rnbqkb1r/ppp1pppp/3p1n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"English: Anglo-Grunfeld defense","rnbqkb1r/ppp1pppp/5n2/3p4/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -"
"Queen's pawn game *","rnbqkb1r/ppp1pppp/5n2/3p4/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"Old Indian: Ukrainian variation","rnbqkb1r/ppp2ppp/3p1n2/4p3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"Queen's pawn game *","rnbqkb1r/ppp2ppp/4pn2/3p4/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"Bishop's opening/Petrov: Urusov gambit","rnbqkb1r/pppp1ppp/5n2/8/2BpP3/5N2/PPP2PPP/RNBQK2R b KQkq -"
"KGA: Kieseritsky, Paulsen defense *","rnbqkb1r/pppp2p1/8/4pPPp/4n3/8/PPPP1PBP/RNBQK1NR b KQkq -"
"Alapin's opening *","rnbqkb1r/ppppnppp/8/4p3/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Dutch: Leningrad variation","rnbqkb1r/ppppp2p/5np1/5p2/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq -"
"St. George defense","rnbqkbnr/1ppp1ppp/p3p3/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -"
"KGD: Mafia defense","rnbqkbnr/pp1p1ppp/8/2p1p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq -"
"Alekhine's defense *","rnbqkbnr/pp1p1ppp/8/2p5/3Np3/8/PPPPPPPP/RNBQKB1R w KQkq -"
"English opening *","rnbqkbnr/pp1ppppp/8/2p5/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Caro-Kann: Gurgenidze system","rnbqkbnr/pp2pp1p/2p3p1/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"Scandinavian (center counter) defense","rnbqkbnr/ppp1pppp/8/3p4/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Bird: From gambit","rnbqkbnr/pppp1ppp/8/4p3/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -"
"Anti-Borg (Desprez) opening *","rnbqkbnr/ppppppp1/8/7p/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Nimzovich-Larsen attack: modern variation","rnbqkbnr/pppp1ppp/8/4p3/8/1P6/P1PPPPPP/RNBQKBNR w KQkq e6"
"Reti: King's Indian attack (with ...c5)","rnbqkbnr/pp2pppp/8/2pp4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq c6"
"English: Queens Indian formation (postponed d4)","rn1q1rk1/pbppbppp/1p2pn2/8/2P5/2N2NP1/PP1PPPBP/R1BQR1K1 b - -"
"English: symmetrical, Botvinnik system reversed","r1bqk1nr/pp1p1pbp/2n3p1/2p1p3/2P5/2N1P1P1/PP1P1PBP/R1BQK1NR w KQkq e6"
"English: symmetrical, main line (with d4)","r1bq1rk1/pp1pppbp/2n2np1/2p5/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - d3"
"French: Marshall variation","rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq c6"
"Old Indian: main line","r1bqkb1r/pppn1ppp/3p1n2/4p3/2PPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq e3"
"Sicilian: Pelikan (Lasker-Sveshnikov) variation","r1bqkb1r/pp1p1ppp/2n2n2/4p3/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq e6"
"Ruy Lopez: Brentano defence","r1bqkbnr/pppp1p1p/2n5/1B2p1p1/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq g6"
"Ruy Lopez: Berlin defence, Zukertort variation","r1bqk2r/pnppbppp/2p5/4P3/2P5/5N2/PP2QPPP/RNB2RK1 b kq c3"
"Sicilian: Scheveningen (6.f4 e6)","rnbqkb1r/1p3ppp/p2ppn2/8/3NPP2/2N5/PPP3PP/R1BQKB1R w KQkq -"
"French: exchange (3.Nc3)","rnbqk1nr/ppp2ppp/8/3p4/1b1P4/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"QGA: Linares variation","rnbqkb1r/p3pppp/5n2/1ppP4/2p1P3/2N5/PP3PPP/R1BQKBNR w KQkq b6"
"QGD: Hastings variation","rnb1kb1r/pp3pp1/2p1pq1p/3p4/2PP4/2N2N2/PP2PPPP/R2QKB1R w KQkq -"
"QGD: semi-Tarrasch defence","rnbqkb1r/pp3ppp/4pn2/2pp4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq c6"
"Nimzo-Indian: Romanishin-Kasparov (Steiner) system","rnbqk2r/pp1p1ppp/4p3/8/1bPNn3/2N3P1/PP2PP1P/R1BQKB1R w KQkq -"
"Queen's pawn: Englund gambit","r1b1kb1r/ppppq1pp/2n2n2/3Q4/8/5N2/PPP1PPPP/RNB1KB1R w KQkq -"
"Ruy Lopez: closed, Keres (9...a5) variation","r1bq1rk1/2p1bppp/2np1n2/pp2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 w - -"
"Evans gambit declined, Showalter variation","r1bqk1nr/1ppp1ppp/pbn5/4p3/PPB1P3/2N2N2/2PP1PPP/R1BQK2R b KQkq -"
"Sicilian: closed, 6.f4 e5 (Botvinnik) *","r1bqk1nr/ppp3bp/2np2p1/4pp2/2P1P3/2NP2P1/PP3PBP/R1BQK1NR b KQkq -"
"QGD semi-Slav: Chigorin defense *","r1bqk2r/pp3ppp/2nbpn2/2pp4/3P4/2PBPN2/PP1N1PPP/R1BQK2R b KQkq -"
"QGD Slav: Dutch variation *","r1bqkb1r/1p3ppp/2n1pn2/p1Pp4/5B2/2P2N2/PP2PPPP/RN1QKB1R w KQkq -"
"English: Queens Indian formation *","r1bqkb1r/pp1ppppp/2n2n2/2p5/8/1P2PN2/P1PP1PPP/RNBQKB1R b KQkq -"
"Ruy Lopez","r1bqkbnr/1ppp1ppp/p1n5/4p3/B3P3/5N2/PPPP1PPP/RNBQK2R b KQkq -"
"French: Winawer, classical variation *","r1bqkbnr/2p2ppp/p1p5/3p4/2PPp3/4P3/PPQ2PPP/RNB1K1NR b KQkq -"
"Venezolana opening","r1bqkbnr/pp1ppppp/2n5/2p5/8/2NP2P1/PPP1PP1P/R1BQKBNR b KQkq -"
"Modern defense: Averbakh system, Kotov variation *","r1bqkbnr/pp3ppp/2n5/2ppp3/8/2NP2P1/PPP1PPBP/R1BQK1NR b KQkq -"
"Grunfeld: exchange, Sokolsky variation *","r2q1rk1/p3n1pp/3bbp2/4p3/N2p4/4B1P1/PP2PPBP/R2Q1RK1 w - -"
"Evans gambit","r2qk1nr/ppp2ppp/1bnp4/8/2BPP1b1/2N2N2/P4PPP/R1BQ1RK1 w kq -"
"Sicilian: Richter-Rauzer, 6...e6 *","r2qkb1r/ppp2ppp/2n5/3np3/6b1/2NPPN2/PP3PPP/R1BQKB1R b KQkq -"
"Richter-Veresov attack, Veresov variation *","r2qkbnr/ppp1pppp/2n5/3p4/3P1B2/5b2/PPP1PPPP/RN1QKB1R w KQkq -"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 *","r3kb1r/pppq1ppp/2n5/3np3/6b1/P1NPPN2/1P3PPP/R1BQKB1R b KQkq -"
"Ruy Lopez: open, Howell attack, Ekstrom variation","r4rk1/2pqbppp/p1n1b3/3pP3/2B1n3/5N2/PP2QPPP/RNBR2K1 w - -"
"English: Capablanca's variation *","rn1qkb1r/pb1ppppp/1p3n2/2p3B1/3P4/2P2N2/PP2PPPP/RN1QKB1R b KQkq -"
"Scandinavian defense, Grunfeld variation","rn2kb1r/pp2pppp/2p2n2/q3Nb2/3P2P1/2N5/PPP2P1P/R1BQKB1R b KQkq -"
"KGA: Lopez-Gianutio counter-gambit, Hein variation","rnbk1bnr/pppp2pp/8/8/2B1pp1q/2N5/PPPPQ1PP/R1BK2NR w - -"
"King's Indian: Semi-Averbakh system","rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N1B3/PP2BPPP/R2QK1NR b KQ -"
"Ruy Lopez: open, 7.Bb3 *","rnbq1rk1/ppp2ppp/1b3n2/3pN3/1P2P3/P1N5/2PP1PPP/R1BQKB1R w KQ -"
"Bishop's opening: Pratt variation","rnbq1rk1/ppp2ppp/5P2/2b4Q/2pp4/2P5/PP3PPP/RNB1K1NR w KQ -"
"Scotch: Cochrane variation *","rnbq1rk1/ppp2ppp/8/2b1p3/8/2P1NN2/PP1P1nPP/R1BQKB1R w KQ -"
"KGA: Kieseritsky, long whip defense, Jaenisch variation","rnbqk1n1/pppp1p1r/7b/4N2p/2BPPppP/2N5/PPP3P1/R1BQK2R b KQq -"
"Bishop's opening: del Rio variation *","rnbqk1nr/pp1p1ppp/2p5/2b1p3/2B1P1Q1/8/PPPP1PPP/RNB1K1NR b KQkq -"
"Catalan: open, 5.Nf3 *","rnbqk2r/pp2ppbp/5np1/2Pp4/8/4PN2/PPP2PPP/RNBQKB1R w KQkq -"
"French: MacCutcheon, Lasker variation","rnbqk2r/ppp2pp1/4pn1p/3pP3/3P4/2b5/PPPB1PPP/R2QKBNR w KQkq -"
"Bishop's opening/Petrov: Urusov gambit *","rnbqk2r/ppp2ppp/5n2/2bPp3/8/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Giuoco Piano *","rnbqk2r/pppp1ppp/5n2/2b1p3/2B1P3/2N5/PPPP1PPP/R1BQK1NR b KQkq -"
"English: symmetrical, Benoni formation","rnbqkb1r/pp1ppppp/5n2/2p5/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq -"
"Scandinavian gambit","rnbqkb1r/pp2pppp/2p2n2/3P4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq -"
"Pirc: Byrne variation","rnbqkb1r/ppp1pp1p/3p1np1/6B1/3PP3/2N5/PPP2PPP/R2QKBNR b KQkq -"
"Blackmar-Diemer gambit","rnbqkb1r/ppp1pppp/5n2/3p4/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq -"
"QGD: 4.Nf3","rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq -"
"English: Carls' Bremen system","rnbqkb1r/pppp1ppp/5n2/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq -"
"Damiano's defense *","rnbqkb1r/pppp1ppp/5n2/4p3/4P3/5P2/PPPP2PP/RNBQKBNR b KQkq -"
"Budapest defense","rnbqkb1r/pppp1ppp/8/4P3/2P3n1/8/PP2PPPP/RNBQKBNR w KQkq -"
"Reti: Lisitsin gambit deferred","rnbqkb1r/ppppp1pp/5n2/5p2/4P3/3P1N2/PPP2PPP/RNBQKB1R b KQkq -"
"King's Indian: Torre attack","rnbqkb1r/pppppp1p/5np1/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq -"
"QGA: Haberditz variation","rnbqkbnr/2p1pppp/p7/1p6/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq -"
"KGA: bishop's gambit, Ruy Lopez defense","rnbqkbnr/pp1p1ppp/2p5/8/2B1Pp2/8/PPPP2PP/RNBQK1NR w KQkq -"
"Reti opening","rnbqkbnr/ppp1pppp/8/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq -"
"Reti: King's Indian attack (Barcza system)","rnbqkbnr/ppp1pppp/8/3p4/8/5NP1/PPPPPP1P/RNBQKB1R b KQkq -"
"KGA: Fischer defense","rnbqkbnr/ppp2ppp/3p4/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq -"
"KGD: Falkbeer, Milner-Barry variation","rnbqkbnr/ppp2ppp/8/3pp3/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq -"
"French: advance, Steinitz variation *","rnbqkbnr/ppp2ppp/8/8/2pPp3/4P3/PP3PPP/RNBQKBNR w KQkq -"
"French defense, Steiner variation","rnbqkbnr/pppp1ppp/4p3/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq -"
"KP: Lopez opening","rnbqkbnr/pppp1ppp/8/4p3/4P3/2P5/PP1P1PPP/RNBQKBNR b KQkq -"
"Alapin's opening","rnbqkbnr/pppp1ppp/8/4p3/4P3/8/PPPPNPPP/RNBQKB1R b KQkq -"
"Alekhine's defense *","rnbqkbnr/pppp1ppp/8/8/3Np3/8/PPPPPPPP/RNBQKB1R b KQkq -"
"Polish (Sokolsky) opening","rnbqkbnr/pppppppp/8/8/1P6/8/P1PPPPPP/RNBQKBNR b KQkq -"
"English orang-utan","rnbqkb1r/pppppppp/5n2/8/1PP5/8/P2PPPPP/RNBQKBNR b KQkq b3"
"English: four knights, kingside fianchetto","r1bqr1k1/ppp2pp1/2np1n1p/8/2P1p3/2P1N1P1/PP2PPBP/R1BQ1RK1 w - -"
"King's Indian with 3.b3","rnbqkb1r/pppppp1p/5np1/8/8/1P3NP1/P1PPPP1P/RNBQKB1R b KQkq -"
"Bishop's opening: wing gambit","rnbqk1nr/pppp1ppp/8/2b1p3/1PB1P3/8/P1PP1PPP/RNBQK1NR b KQkq b3"
"Latvian counter-gambit","rnbqkbnr/pppp2pp/8/4pp2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq f6"
"Philidor: Lopez counter-gambit","rnbqkbnr/ppp3pp/3p4/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq f6"
"Sicilian: Najdorf (6.f4)","rnbqkb1r/1p2pppp/p2p1n2/8/3NPP2/2N5/PPP3PP/R1BQKB1R b KQkq f3"
"French defence","rnbqkbnr/pppp1ppp/4p3/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq d3"
"QGD: semi-Slav, Meran variation","r1bqkb1r/p2n1ppp/2p1pn2/1p6/2BP4/2N1PN2/PP3PPP/R1BQK2R w KQkq b6"
"Catalan: open (Nc3)","rnbq1rk1/ppp1bppp/4pn2/8/2pP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - -"
"Bogo-Indian defence: Nimzovich variation","rnb1k2r/ppppqppp/4pn2/8/1bPP4/5NP1/PP1BPP1P/RN1QKB1R b KQkq -"
"Queen's Indian: old main line","rn1q1rk1/pbp1bppp/1p3n2/3p4/3P4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"QGD: Orthodox defense, Rubinstein attack, main line *","2r1kb1r/ppq2ppp/2n1pn2/3p4/3p2b1/P1P1PN2/1P1NBPPP/R1BQ1RK1 w k -"
"French: Winawer, advance, poisoned pawn variation *","r1b1kbnr/2p2ppp/p1p5/3p2q1/2PPp3/4P3/PP2NPPP/RNBQK2R w KQkq -"
"Sicilian: Dragon, classical, Zollner gambit","r1b2rk1/pp2ppbp/1qnp1np1/4P3/3N1P2/2N1B3/PPP1B1PP/R2Q1RK1 b - -"
"Reti: King's Indian attack, French variation","r1bq1rk1/pp2bppp/2n1pn2/2pp4/4P3/3P1NP1/PPPN1PBP/R1BQR1K1 b - -"
"Benoni: classical, 9...Re8 *","r1bq1rk1/pp2bppp/2n2n2/4p3/2Pp4/3P1NP1/PP3PBP/RNBQR1K1 b - -"
"Grunfeld: Spassky variation, main line, 10...cd, 11.cd","r1bq1rk1/pp2ppbp/2n3p1/8/2BPP3/4B3/P3NPPP/R2Q1RK1 b - -"
"Evans gambit: Tartakower attack","r1bqk1nr/ppp2ppp/2np4/b3p3/2BPP3/1QP2N2/P4PPP/RNB1K2R b KQkq -"
"Scotch gambit","r1bqk1nr/pppp1ppp/2n5/2b3N1/2BpP3/8/PPP2PPP/RNBQK2R b KQkq -"
"Nimzo-Indian: e3, Hubner variation","r1bqk2r/pp3ppp/2nppn2/2p5/2PP4/2PBPN2/P4PPP/R1BQK2R w KQkq -"
"Sicilian: Scheveningen, 6.Be2 *","r1bqk2r/ppp1bppp/2n5/3np3/8/3PPN2/PP3PPP/RNBQKB1R w KQkq -"
"Nimzo-Indian: classical, San Remo variation","r1bqk2r/ppp2ppp/2n5/3pp3/2PPn3/P3P3/1PQ2PPP/R1B1KBNR w KQkq -"
"Ruy Lopez: open, Tartakower variation","r1bqkb1r/1ppp1ppp/p1n5/4p3/B3n3/5N2/PPPPQPPP/RNB2RK1 b kq -"
"Nimzo-Indian: Three Knights, Korchnoi variation *","r1bqkb1r/pp2pppp/2n2n2/1Bp5/2Pp4/4PN2/PP1P1PPP/RNBQK2R w KQkq -"
"English: Four Knights, Capablanca variation *","r1bqkb1r/pp2pppp/2np1n2/2p5/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"QGD: Semi-Tarrasch with e3 *","r1bqkb1r/pp3ppp/2n1pn2/3p4/2PN4/4P3/PP3PPP/RNBQKB1R w KQkq -"
"Sicilian: Pin, Koch variation *","r1bqkb1r/ppp2ppp/2n5/1B1n4/4p3/4PN2/PP1P1PPP/RNBQK2R w KQkq -"
"Four Knights: Schultze-Muller gambit","r1bqkb1r/pppp1ppp/2n2n2/4N3/4P3/2N5/PPPP1PPP/R1BQKB1R b KQkq -"
"Petrov Three Knights game *","r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Center game: Berger variation","r1bqkb1r/pppp1ppp/2n2n2/8/4P3/4Q3/PPP2PPP/RNB1KBNR w KQkq -"
"Four Knights: Rubinstein counter-gambit, exchange variation","r1bqkb1r/pppp1ppp/5n2/1B2p3/3NP3/2N5/PPPP1PPP/R1BQK2R b KQkq -"
"Benoni: pawn storm variation *","r1bqkbnr/pp4pp/2n5/4pp2/2Pp4/3P1NP1/PP3P1P/RNBQKB1R w KQkq -"
"QGD: exchange, chameleon variation","r1bqrnk1/ppp1bppp/5n2/3p2B1/3P4/2NBP3/PPQ1NPPP/2KR3R b - -"
"King's Indian: Gligoric-Taimanov system *","r2qk2r/pp2bppp/2n1bn2/2ppp3/4P3/3P1NP1/PPP2PBP/RNBQ1RK1 w kq -"
"QGD semi-Slav: Meran, Wade variation","r2qkb1r/pb1n1ppp/2p1pn2/1p6/3P4/2NBPN2/PP3PPP/R1BQK2R w KQkq -"
"Benoni: classical, 8.Bg5 *","r2qkb1r/pp3ppp/2n2n2/4p3/2Pp2b1/3P1NP1/PP3PBP/RNBQK2R w KQkq -"
"QGD: Harrwitz attack *","r2qkbnr/pp2pppp/2n5/2pp1b2/3P4/4PN2/PPP2PPP/RNBQKB1R w KQkq -"
"QGD: Lasker defense, Teichmann variation *","r3kb1r/ppq2ppp/2n1pn2/2ppN3/3P4/4P2P/PPP1QPP1/RNB2RK1 w kq -"
"King's Indian: Samisch, orthodox, Bronstein variation *","r5nr/pp2k2p/2n2p2/2N1p2q/3pP3/3P2P1/PPP2PBP/RNB2RK1 b - -"
"Robatsch defense: Rossolimo variation","rn1qk1nr/ppp1ppbp/3p2p1/8/2PPP1b1/5N2/PP3PPP/RNBQKB1R w KQkq -"
"English: symmetrical, hedgehog system","rn1qk2r/pb1pbppp/1p2pn2/2p5/2P5/2N2NP1/PP1PPPBP/R1BQ1RK1 w kq -"
"Alekhine's defense: four pawns attack, 7.Be3 *","rn1qkbnr/pp4pp/4b3/2pp4/4p3/1NN5/PPP1PPPP/R1BQKB1R w KQkq -"
"Sicilian: Najdorf, Poisoned pawn variation","rnb1kb1r/1p3ppp/p2ppn2/6B1/3NPP2/q1N5/P1PQ2PP/1R2KB1R w Kkq -"
"KP: Patzer opening *","rnb1kbnr/pppp1ppp/8/4p3/4P2q/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Neo-Grunfeld, 6.O-O c6 *","rnbq1rk1/pp2ppbp/5np1/2pp4/3P4/2P2NP1/PP2PPBP/RNBQ1RK1 b - -"
"King's Indian: Samisch, orthodox, 7.d5 c6","rnbq1rk1/pp3pbp/2pp1np1/3Pp3/2P1P3/2N1BP2/PP4PP/R2QKBNR w KQ -"
"Beefeater defense","rnbqk1nr/pp1pp2p/6p1/2pP1p2/2P5/2P5/P3PPPP/R1BQKBNR w KQkq -"
"King's Indian: Samisch, 5...O-O","rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N2P2/PP4PP/R1BQKBNR w KQ -"
"Ruy Lopez: closed, center attack *","rnbq1rk1/ppp2ppp/5n2/b2pp3/4P3/P1N2N2/1PPPBPPP/R1BQK2R w KQ -"
"Nimzo-Indian: Leningrad, ...b5 gambit","rnbqk2r/p2p1pp1/4pn1p/1ppP4/1bP4B/2N5/PP2PPPP/R2QKBNR w KQkq -"
"French: Wing gambit *","rnbqkb1r/p1pp1ppp/5n2/1p6/2PPp3/4P3/PP3PPP/RNBQKBNR w KQkq -"
"Benoni defense","rnbqkb1r/pp1ppppp/5n2/2p5/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"Grunfeld: Lundin variation","rnbqkb1r/pp2pp1p/6p1/2p3B1/2PPp3/8/PP1QPPPP/R3KBNR w KQkq -"
"Bird's opening: Lasker variation","rnbqkb1r/pp2pppp/5n2/2pp4/5P2/4PN2/PPPP2PP/RNBQKB1R w KQkq -"
"French: advance, Nimzovich system *","rnbqkb1r/ppp2ppp/5n2/3p4/2PPp3/4P3/PP3PPP/RNBQKBNR w KQkq -"
"Sicilian: Kan variation","rnbqkbnr/1p1p1ppp/p3p3/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq -"
"Sicilian: Katalimov variation","rnbqkbnr/p2ppppp/1p6/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"KP: Lopez opening *","rnbqkbnr/pp1p1ppp/2p5/4p3/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Benko gambit accepted *","rnbqkbnr/pp2pppp/8/8/2Pp4/p4N2/3PPPPP/RNBQKB1R w KQkq -"
"Dutch: Staunton gambit deferred *","rnbqkbnr/pp3ppp/8/2ppp3/5P2/4P3/PPPP2PP/RNBQKBNR w KQkq -"
"Reti opening","rnbqkbnr/ppp1pppp/3p4/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"Danish gambit: Schlechter defense","rnbqkbnr/ppp2ppp/8/3p4/2B1P3/8/PB3PPP/RN1QK1NR w KQkq -"
"Caro-Kann defense *","rnbqkbnr/ppp2ppp/8/3pp3/8/2P5/PP1PPPPP/RNBQKBNR w KQkq -"
"KGA: Keres (Mason-Steinitz) gambit","rnbqkbnr/pppp1ppp/8/8/4Pp2/2N5/PPPP2PP/R1BQKBNR b KQkq -"
"KGA: Breyer gambit","rnbqkbnr/pppp1ppp/8/8/4Pp2/5Q2/PPPP2PP/RNB1KBNR b KQkq -"
"Sicilian: Grand Prix attack *","rnbqkbnr/pppp2pp/8/4pp2/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"Reversed Grob (Borg/Basman defense/macho Grob)","rnbqkbnr/pppppp1p/8/6p1/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Ruy Lopez: closed, Chigorin defense *","rnbqr1k1/ppb2pp1/2p2n1p/3pp3/NPP1P3/P2P1N2/2Q1BPPP/R1B2RK1 b - -"
"Ruy Lopez: closed (10...c5) *","rnbqr1k1/ppbp1pp1/2p2n1p/4p3/NPP1P3/P2P1N2/4BPPP/R1BQ1RK1 b - -"
"Benoni: modern variation","rnbq1rk1/pp3pbp/3ppnp1/2pP2B1/2P1P3/2N2P2/PP4PP/R2QKBNR w KQ -"
"Corn stalk defence","rnbqkbnr/1ppppppp/8/p7/4P3/8/PPPP1PPP/RNBQKBNR w KQkq a6"
"Russian defence: (Petroff's) Lichtehein variation","rnbqkb1r/ppp2ppp/8/3pp3/2B1n3/2N2N2/PPPP1PPP/R1BQK2R w KQkq d6"
"Alekhine's defence: modern, Alekhine variation","rn1qkb1r/ppp1pppp/3p4/3nP3/2PP2b1/5N2/PP3PPP/RNBQKB1R b KQkq c3"
"Pirc-Robatsch","rnbqkb1r/pp2pp1p/2pp1np1/8/3PPP2/2N5/PPP3PP/R1BQKBNR w KQkq -"
"Caro-Kann: anti-Caro-Kann defence","rnbqkbnr/pp1ppppp/2p5/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq c3"
"Sicilian: Richter-Rauzer, Rauzer attack","r1bq1rk1/pp2bppp/2nppn2/6B1/4P3/1NN5/PPPQ1PPP/2KR1B1R b - -"
"Gruenfeld defence: Smyslov, Yugoslav variation","rn1q1rk1/pp1nppbp/6p1/2p5/3PP1b1/1QN1BN2/PP3PPP/R3KB1R w KQ c6"
"Catalan: open (5.Qa4)","r1bqkb1r/1ppn1ppp/p3pn2/8/Q1pP4/2N2NP1/PP2PPBP/R1B1K2R b KQkq -"
"Catalan: open, classical line","rnbq1rk1/ppp1bppp/4pn2/8/2pP4/5NP1/PP2PPBP/RNBQ1RK1 w - -"
"King's Indian: four pawns attack, Benoni formation","rnbq1rk1/1p2ppbp/p2p1np1/2pP4/P1P1PP2/2N2N2/1P4PP/R1BQKB1R b KQ a3"
"QGD: Orthodox defense, Bd3 line, Alekhine variation *","2rqk2r/pp3ppp/4pn2/2bpn3/3N4/2P1P3/PP1NQPPP/R1B2RK1 w k -"
"Nimzo-Indian: classical, Noa variation *","r1b1kbnr/ppq1pppp/2n5/1Bpp4/3P4/4PN2/PPP2PPP/RNBQK2R b KQkq -"
"Evans gambit: Fraser-Mortimer attack *","r1b2rk1/p1q2ppp/2n2n2/3pp3/N7/1B1P4/PPPB1bPP/R2Q1KNR w - -"
"Philidor: Hanham, Berger variation","r1bq1rk1/pp1nbppp/2p4n/3pp1N1/2BPPP2/2P5/PP4PP/RNBQ1RK1 w - -"
"King's Indian: fianchetto, Yugoslav, 7.O-O *","r1bq1rk1/pp2ppbp/2n2np1/2pp4/2P5/3P1NP1/PP2PPBP/RNBQ1RK1 w - -"
"Neo-Grunfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc3 *","r1bq1rk1/pp2ppbp/2n2np1/3p4/2PN4/6P1/PP2PPBP/RNBQ1RK1 w - -"
"Giuoco Piano: Greco variation *","r1bq1rk1/pp3ppp/2N2n2/1Bbp4/8/2N5/PPPP1PPP/R1BQK2R b KQ -"
"King's Indian: orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation)","r1bq1rk1/ppp2pbp/2np1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 w - -"
"Four Knights: Svenonius variation","r1bq1rk1/ppp2ppp/2n2n2/1B1pp3/4P3/2PP1N2/P1P2PPP/R1BQ1RK1 w - -"
"English: symmetrical variation","r1bqk1nr/pp1pppbp/2n3p1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQK2R b KQkq -"
"King's Indian: fianchetto with ...Nc6 *","r1bqk2r/pp2ppbp/2n2np1/2pp4/8/2NP1NP1/PPP1PPBP/R1BQ1RK1 b kq -"
"Ruy Lopez: Berlin defense, Trifunovic variation","r1bqk2r/ppp1bppp/2n5/1B1pp3/3Pn3/5N2/PPP1QPPP/RNB2RK1 w kq -"
"Petrov: classical attack, Chigorin variation","r1bqk2r/ppp1bppp/2n5/3p4/3Pn3/3B1N2/PPP2PPP/RNBQR1K1 b kq -"
"Sicilian: Sozin, Leonhardt variation *","r1bqk2r/ppp2ppp/2n5/2bnp3/8/2NPPN2/PP3PPP/R1BQKB1R b KQkq -"
"Giuoco Piano: Greco's attack","r1bqk2r/pppp1ppp/2n2n2/8/1bBPP3/2N2N2/PP3PPP/R1BQK2R b KQkq -"
"Ruy Lopez: Steinitz defense deferred, Boleslavsky variation","r1bqkb1r/2p3pp/p1p5/3pPp2/4n3/2N2N2/PPP2PPP/R1BQR1K1 b kq -"
"Sicilian: Richter-Rauzer, Keres variation","r1bqkb1r/pp3ppp/2nppn2/6B1/3NP3/2NQ4/PPP2PPP/R3KB1R b KQkq -"
"KGA: Allgaier, Blackburne gambit *","r1bqkb1r/pppp2p1/2n5/4pPPp/8/7P/PPPP1K2/RNBQ1BNR w kq -"
"Ruy Lopez: exchange, Romanovsky variation","r1bqkbnr/1pp3pp/p1p2p2/4p3/4P3/2NP1N2/PPP2PPP/R1BQK2R b KQkq -"
"Ruy Lopez: modern Steinitz defense, Richter variation","r1bqkbnr/2p2ppp/p1pp4/4p3/3PP3/5N2/PPP2PPP/RNBQK2R b KQkq -"
"Woozle defense *","r1bqkbnr/ppp1pppp/2n5/8/Q1Pp4/5N2/PP1PPPPP/RNB1KB1R b KQkq -"
"French: Frere (Becker) variation *","r1bqkbnr/ppp2ppp/8/3pn3/3Q4/4P3/PPP2PPP/RNB1KBNR b KQkq -"
"French: Tarrasch, Guimard variation *","r1bqkbnr/pppn1ppp/8/3pp3/3P4/2N1P3/PPP2PPP/R1BQKBNR b KQkq -"
"KGD: Falkbeer, Keres variation *","r1bqkbnr/pppn2pp/3p4/4Pp2/3p4/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"KGA: Kieseritsky, Neumann defense","r1bqkbnr/pppp1p1p/2n5/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq -"
"Vienna: Paulsen variation","r1bqkbnr/pppp1ppp/2n5/4p3/4P3/2N3P1/PPPP1P1P/R1BQKBNR b KQkq -"
"Four Knights: Janowski variation *","r1bqr1k1/p1p2ppp/2pp1n2/4p3/1b2P3/2NP1N2/PPP2PPP/R1BQ1RK1 w - -"
"English: symmetrical, hedgehog, flexible formation *","r1br2k1/p3ppbp/1pn2np1/2pq4/8/PP1PPN2/1B1NBPPP/R2QK2R b KQ -"
"QGD: Cambridge Springs defense, 7.cd *","r2qkb1r/pp3ppp/2n1pn2/3p4/Q2p2b1/2P1PN2/PP1N1PPP/R1B1KB1R w KQkq -"
"Nimzo-Indian: Spielmann, Karlsbad variation *","r3kb1r/pp1Npppp/1qn2n2/1Bp5/2p5/2N1P3/PP1P1PPP/R1BQK2R b KQkq -"
"QGD semi-Slav: Meran, Rellstab attack *","r4rk1/pp2qppp/3b4/3P4/1P1Qn1b1/B3PN2/5PPP/R3KB1R w KQ -"
"King's Indian: fianchetto, Larsen system","rn1q1rk1/pp2ppbp/2pp1np1/5b2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"Danish gambit: Collijn defense *","rn1qk1nr/pb3ppp/8/2b1p3/8/8/PPPPQPPP/RNB1KBNR b KQkq -"
"Evans gambit: Sokolsky variation *","rn1qk2r/p4ppp/2p2n2/2bpp3/B3P1b1/2NP4/PPP2PPP/R1BQK1NR w KQkq -"
"QGD Slav: Wiesbaden variation","rn1qkb1r/pp3ppp/2p1pn2/4Nb2/P1pP4/2N5/1P2PPPP/R1BQKB1R w KQkq -"
"Vienna gambit: Kaufmann variation","rn1qkb1r/ppp2ppp/8/3pP3/4n1b1/2N2N2/PPPPQ1PP/R1B1KB1R b KQkq -"
"Center game *","rnb1kbnr/ppp2ppp/8/3qp3/8/2N5/PPPP1PPP/R1BQKBNR b KQkq -"
"Neo-Grunfeld, 6.O-O *","rnbq1rk1/pp2ppbp/5np1/2pp4/3P4/5NP1/PPP1PPBP/RNBQ1RK1 w - -"
"King's Indian: Larsen variation","rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N1BN2/PP3PPP/R2QKB1R b KQ -"
"Pirc: Austrian attack, 6.Bd3","rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2NB1N2/PPP3PP/R1BQK2R b KQ -"
"Ruy Lopez: Bird's defense, Paulsen variation *","rnbq1rk1/pppp1ppp/8/3Pp3/1b6/8/PPPPNPPP/R1BQKB1R b KQ -"
"KGD: classical, Heath variation","rnbqk1nr/ppp2ppp/3p4/2b1p3/1P2PP2/5N2/P1PP2PP/RNBQKB1R b KQkq -"
"Bishop's opening: Berlin defense *","rnbqk1nr/pppp1ppp/8/2b1p3/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -"
"Benoni: classical, 8.Bg5","rnbqk2r/pp3pbp/3p1np1/2pP2B1/4P3/2N2N2/PP3PPP/R2QKB1R b KQkq -"
"Bishop's opening: Urusov gambit, Panov variation *","rnbqk2r/pp3ppp/2p2n2/1BbP4/3p4/5N2/PPP1QPPP/RNB1K2R b KQkq -"
"QGA: classical variation *","rnbqk2r/pp3ppp/4pn2/2bp4/2P5/4PN2/PP3PPP/RNBQKB1R b KQkq -"
"Grunfeld: Russian variation","rnbqk2r/ppp1ppbp/5np1/3p4/2PP4/1QN2N2/PP2PPPP/R1B1KB1R b KQkq -"
"Ruy Lopez: Graz variation *","rnbqk2r/pppp1ppp/1b3n2/4p3/1PB1P3/P1N5/2PP1PPP/R1BQK1NR b KQkq -"
"Nimzo-Indian: Samisch variation","rnbqk2r/pppp1ppp/4pn2/8/2PP4/P1P5/4PPPP/R1BQKBNR b KQkq -"
"Benoni: Nimzovich (knight's tour) variation","rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N5/PP1NPPPP/R1BQKB1R b KQkq -"
"Scandinavian: Richter variation","rnbqkb1r/ppp1pp1p/5np1/3P4/3P4/8/PPP2PPP/RNBQKBNR w KQkq -"
"English: Anglo-Grunfeld, Smyslov defense","rnbqkb1r/ppp1pp1p/6p1/8/8/2n3P1/PP1PPPBP/R1BQK1NR w KQkq -"
"Budapest: Alekhine variation, Balogh gambit","rnbqkb1r/ppp2ppp/3p4/4P3/2P1P1n1/8/PP3PPP/RNBQKBNR w KQkq -"
"Alekhine's defense: modern variation, 4...Bg4 *","rnbqkb1r/ppp2ppp/5n2/3p2B1/3Np3/3P4/PPP1PPPP/RN1QKB1R b KQkq -"
"QGD: exchange, positional line","rnbqkb1r/ppp2ppp/5n2/3p2B1/3P4/2N5/PP2PPPP/R2QKBNR b KQkq -"
"Reti: Wade defense *","rnbqkb1r/pppp1ppp/5n2/4p1B1/8/3P4/PPP1PPPP/RN1QKBNR b KQkq -"
"Reti v Dutch *","rnbqkb1r/pppppppp/5n2/8/5P2/8/PPPPP1PP/RNBQKBNR b KQkq -"
"Old Indian defense","rnbqkbnr/ppp1pppp/3p4/8/2PP4/8/PP2PPPP/RNBQKBNR b KQkq -"
"Blackmar gambit","rnbqkbnr/ppp1pppp/8/3p4/3PP3/8/PPP2PPP/RNBQKBNR b KQkq -"
"KGA: Kieseritsky, Kolisch defense","rnbqkbnr/ppp2p1p/3p4/4N3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq -"
"French: Tarrasch","rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/8/PPPN1PPP/R1BQKBNR b KQkq -"
"Danish gambit: Sorensen defense","rnbqkbnr/ppp2ppp/8/3p4/3pP3/2P5/PP3PPP/RNBQKBNR w KQkq -"
"Robatsch (modern) defense *","rnbqkbnr/ppp2ppp/8/3pp3/8/6P1/PPPPPPBP/RNBQK1NR b KQkq -"
"Benko's opening: reversed Alekhine","rnbqkbnr/pppp1ppp/8/4p3/8/5NP1/PPPPPP1P/RNBQKB1R b KQkq -"
"Robatsch (modern) defense *","rnbqkbnr/pppp1ppp/8/4p3/8/6P1/PPPPPP1P/RNBQKBNR b KQkq -"
"English: Neo-Catalan accepted","r1bqkb1r/pppn1ppp/4pn2/8/Q1p5/5NP1/PP1PPPBP/RNB1K2R w KQkq -"
"English: Anglo-Gruenfeld (without ...d5)","r1bq1rk1/1pp2pb1/2np1npp/p3p3/2P5/P1NP1NP1/1P2PPBP/1RBQ1RK1 w - -"
"Benoni: modern variation","rnbq1rk1/pp3pbp/3ppnp1/2pP4/2P1P3/2N1BP2/PP1Q2PP/R3KBNR b KQ -"
"Robatsch defence: Gurgenidze variation","rnbqk1nr/pp2ppb1/2p3p1/3pP2p/3P1P2/2N5/PPP3PP/R1BQKBNR w KQkq h6"
"Sicilian: Alapin's variation (3.c3)","rnbqkbnr/pp3ppp/8/2pp4/3P4/2P2N2/PP3PPP/RNBQKB1R b KQkq d3"
"Ruy Lopez: modern Steinitz defence, Richter variation","r1bqkbnr/2p2ppp/p1pp4/4p3/3PP3/5N2/PPP2PPP/RNBQK2R b KQkq d3"
"QGA: Bogolyubov variation","rnbqkb1r/1pp1pppp/p4n2/8/2pPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq e3"
"QGD: Orthodox defense, Bd3 line, fianchetto variation *","2rqk2r/pp3ppp/2n1pn2/2bp4/1P4b1/2P1PN2/P2NBPPP/R1BQ1RK1 b k -"
"QGD: Orthodox defense, classical variation *","3q1rk1/pp3ppp/2r1pn2/2bp4/4P3/2P5/PP1NQPPP/R1B2RK1 b - -"
"Sicilian: Najdorf, 7...Be7 main line","r1b1k2r/1pqnbppp/p2ppn2/6B1/3NPP2/2N2Q2/PPP3PP/2KR1B1R w kq -"
"English: Four Knights, Stean variation *","r1b1kb1r/pp1p1ppp/4pn2/1Bp5/3nPq2/2N2N2/PPPP1PPP/R1BQR1K1 w kq -"
"Vienna gambit: Paulsen attack *","r1b1kbnr/pppp2pp/2n2q2/4N3/3Pp3/8/PPP2PPP/RNBQKB1R w KQkq -"
"Nimzo-Indian: classical variation *","r1b1kbnr/ppq1pppp/2n5/1Bpp4/8/4PN2/PPPP1PPP/RNBQK2R w KQkq -"
"QGD: Semi-Tarrasch, Levenfish variation","r1b2rk1/pp2qppp/2n1pn2/2bp4/2P1P3/2NB1N2/PP2QPPP/R1B2RK1 b - -"
"Evans gambit declined, Pavlov variation","r1b3r1/ppp2k1p/1b6/nP2B1q1/3PP3/8/P1PN1PPP/R2QK2R b KQ -"
"QGD: Semi-Tarrasch, symmetrical variation *","r1bq1rk1/pp3ppp/2nbpn2/2pp4/2PP4/2NBPN2/PP3PPP/R1BQ1RK1 b - -"
"Four Knights: symmetrical, Maroczy system","r1bq1rk1/ppp2ppp/2np1n2/1B2p3/1b2P3/3P1N2/PPP1NPPP/R1BQ1RK1 b - -"
"Four Knights: Bardeleben variation *","r1bq1rk1/ppp3pp/2n5/1B1p1p2/1b2p3/2N2N2/PPPP1PPP/R1BQ1RK1 b - -"
"King's Indian: Petrosian system, main line","r1bq1rk1/pppn1pbp/3p1np1/3Pp3/2P1P3/2N2N2/PP2BPPP/R1BQK2R w KQ -"
"Caro-Kann: Alekhine gambit *","r1bqk1nr/ppp2ppp/3b4/3pn3/8/2P2N2/PP2PPPP/RNBQKB1R w KQkq -"
"Evans gambit","r1bqk1nr/pppp1ppp/2n5/b3p3/2B1P3/2P2N2/P2P1PPP/RNBQ1RK1 b kq -"
"QGD semi-Slav: Romih variation","r1bqk2r/pp1n1ppp/2p1pn2/3p4/1bPP4/2NBPN2/PP3PPP/R1BQK2R w KQkq -"
"Two Knights: Max Lange attack","r1bqk2r/pppp1ppp/2n2n2/2b1P3/2Bp4/5N2/PPP2PPP/RNBQ1RK1 b kq -"
"QGD Slav: Smyslov variation *","r1bqkb1r/1p3ppp/2n2n2/p1Ppp1B1/8/N1P2N2/PP2PPPP/R2QKB1R b KQkq -"
"Ruy Lopez: open, 6.d4","r1bqkb1r/1ppp1ppp/p1n5/4p3/B2Pn3/5N2/PPP2PPP/RNBQ1RK1 b kq -"
"QGD: Albin counter-gambit, Balogh variation *","r1bqkb1r/pp1npppp/5n2/2pP4/4p3/2N5/PPP1QPPP/R1B1KBNR b KQkq -"
"Sicilian defense","r1bqkb1r/pp1ppppp/2n2n2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq -"
"Benoni: classical with e4 and Nf3 *","r1bqkb1r/pp3ppp/2n2n2/4p3/2Pp4/3P1NP1/PP3P1P/RNBQKB1R w KQkq -"
"Scandinavian defense, Lasker variation *","r1bqkb1r/ppp2pp1/2n2n1p/3p2B1/Q7/5N2/PPP1PPPP/RN2KB1R w KQkq -"
"Two Knights defense","r1bqkb1r/pppp1ppp/2n5/8/2Bpn3/5N2/PPP2PPP/RNBQ1RK1 w kq -"
"French: Winawer, advance, Smyslov variation *","r1bqkbnr/2p2ppp/2p5/p2p4/2PPp3/4P3/PP2NPPP/RNBQK2R w KQkq -"
"QGD: 3.Nc3 *","r1bqkbnr/pp2pppp/2n5/2pp4/3P4/4P3/PPP2PPP/RNBQKBNR w KQkq -"
"Ruy Lopez: Noah's ark trap","r1bqkbnr/5ppp/p2p4/1pp5/3QP3/1B6/PPP2PPP/RNB1K2R w KQkq -"
"Sicilian defense","r1bqkbnr/pp1p1ppp/2n1p3/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq -"
"Caro-Kann: classical, 6.h4 *","r1bqkbnr/ppp2pp1/6n1/3p3p/8/2P3B1/PP2PPPP/RN1QKBNR w KQkq -"
"French: Steinitz variation *","r1bqkbnr/ppp2ppp/2n5/3p4/3Pp3/4PN2/PPP2PPP/RNBQKB1R w KQkq -"
"Three Knights: Winawer defense (Gothic defense)","r1bqkbnr/pppp2pp/2n5/4pp2/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"Grunfeld: 5.Bg5 *","r2qkb1r/pp2pppp/2n2n2/2pp4/3P2b1/5NP1/PPP1PPBP/RNBQK2R w KQkq -"
"King's Indian: Smyslov system *","r2qkb1r/pp2pppp/2n2n2/2pp4/6b1/3P1NP1/PPP1PPBP/RNBQK2R w KQkq -"
"Sicilian: Dragon, classical, Stockholm attack","r4rk1/pp2ppbp/3p1np1/q4P2/4P1P1/2N1B3/PPP1Q2P/R4RK1 b - -"
"Nimzo-Indian: 4.e3, Bronstein (Byrne) variation","rn1qk2r/p1pp1ppp/bp2pn2/8/1bPP4/2N1P3/PP2NPPP/R1BQKB1R w KQkq -"
"King's Indian: London system *","rn1qkb1r/ppp1pppp/5n2/3p1b2/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq -"
"French: Winawer, Petrosian variation","rnb1k1nr/pppq1ppp/4p3/3pP3/1b1P4/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"Two Knights defense: Maroczy variation *","rnb1k2r/ppp1qppp/5n2/2p1P3/3p4/5N1P/PPP1BPP1/R1BQK2R b KQkq -"
"Bishop's opening: Classical variation","rnbqk1nr/pppp1ppp/8/2b1p3/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq -"
"Robatsch (modern) defense","rnbqk1nr/ppppppbp/6p1/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -"
"Ponziani counter-gambit, Cordel variation","rnbqk2r/ppp1b1pp/3p1n2/3Pp3/4N3/2PB4/PP3PPP/RNBQK2R w KQkq -"
"Bird: From gambit, Lipke variation","rnbqk2r/ppp2ppp/3b3n/8/3P4/5N2/PPP1P1PP/RNBQKB1R b KQkq -"
"Two Knights defense (Modern bishop's opening) *","rnbqk2r/ppp2ppp/3p1n2/2b1p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"QGA, Bogolyubov variation","rnbqkb1r/1pp1pppp/p4n2/8/2pPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq -"
"English: Queens Indian formation","rnbqkb1r/p1pp1ppp/1p2pn2/8/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq -"
"Reti accepted: Keres variation *","rnbqkb1r/pp1p1ppp/4pn2/2P5/8/4B3/PPP1PPPP/RN1QKBNR b KQkq -"
"Caro-Masi defense","rnbqkb1r/pp1ppppp/2p2n2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -"
"Benoni defense, Hromodka system","rnbqkb1r/pp2pppp/3p1n2/2pP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq -"
"QGD Slav: exchange variation","rnbqkb1r/pp2pppp/5n2/3p4/3P4/5N2/PP2PPPP/RNBQKB1R w KQkq -"
"Alekhine's defense: modern, Schmid variation","rnbqkb1r/ppp1pppp/1n1p4/4P3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"QGA, 4.e3","rnbqkb1r/ppp1pppp/5n2/8/2pP4/4PN2/PP3PPP/RNBQKB1R b KQkq -"
"KGA: Kieseritsky, Brentano defense, Caro variation","rnbqkb1r/ppp2p1p/8/3pN3/3PnBpP/8/PPPN2P1/R2QKB1R b KQkq -"
"French defense *","rnbqkb1r/pppp1ppp/5n2/4p3/8/4P3/PPPP1PPP/RNBQKBNR w KQkq -"
"QGD: Alapin variation","rnbqkbnr/p1p2ppp/1p2p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"English orang-utan *","rnbqkbnr/p2ppppp/8/1pp5/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"Nimzovich-Larsen attack: English variation","rnbqkbnr/pp1ppppp/8/2p5/8/1P6/P1PPPPPP/RNBQKBNR w KQkq -"
"KGA: bishop's gambit, Anderssen variation","rnbqkbnr/pp3ppp/2p5/3B4/4Pp2/8/PPPP2PP/RNBQK1NR w KQkq -"
"English, Keres variation","rnbqkbnr/pp3ppp/2pp4/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq -"
"Canard opening *","rnbqkbnr/ppp1p1pp/8/3p1p2/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"KGD: Falkbeer, 4.d3","rnbqkbnr/ppp2ppp/8/3P4/4pP2/3P4/PPP3PP/RNBQKBNR b KQkq -"
"Mieses opening","rnbqkbnr/pppp1ppp/8/4p3/8/3P4/PPP1PPPP/RNBQKBNR w KQkq -"
"Barnes defense","rnbqkbnr/ppppp1pp/5p2/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Benko's opening *","rnbqkbnr/pppppp1p/6p1/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Petrov: classical attack, Krause variation *","rnbqr1k1/pp3ppp/3b1n2/2ppN1B1/3P1P2/2N5/PPP1B1PP/R2QK2R w KQ -"
"Ruy Lopez: closed, Borisenko defense *","rnbqr1k1/ppb2pp1/2p2n1p/3pp3/1PP1P3/P1NP1N2/4BPPP/R1BQ1RK1 b - -"
"Ruy Lopez: closed, 7...O-O *","rnbqr1k1/pppp1ppp/1b3n2/4p3/1P2P3/P1N2N2/2PPBPPP/R1BQ1RK1 b - -"
"Tennison (Lemberg, Zukertort) gambit","rnbqkbnr/ppp1pppp/8/3p4/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq e3"
"English: decoy line","r1bq1rk1/pp2bppp/2n2n2/3p4/Q7/2N2NP1/PP2PPBP/R1B2RK1 b - -"
"Queen's pawn game","rnbqkb1r/pppp1ppp/4pn2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"Vienna: Pierce gambit","r1bqkbnr/pppp1p1p/2n5/6p1/3PPp2/2N2N2/PPP3PP/R1BQKB1R b KQkq d3"
"Counter-counter (e4/d4) attack","rnbqkb1r/ppp1pppp/5n2/8/3P4/2N2N2/PPP3PP/R1BQKB1R b KQkq -"
"Pirc: Chinese variation","rnbqk2r/ppp1ppbp/3p1np1/8/3PP1P1/2N5/PPP1BP1P/R1BQK1NR b KQkq g3"
"Evans gambit declined (5.a4)","r1bqk1nr/pppp1ppp/1bn5/4p3/PPB1P3/5N2/2PP1PPP/RNBQK2R b KQkq a3"
"Ruy Lopez: Marshall counter-attack","r1bq1rk1/2p1bppp/p1n2n2/1p1pp3/4P3/1BP2N2/PP1P1PPP/RNBQR1K1 w - d6"
"King's Indian: fianchetto, Yugoslav system","rnbq1rk1/pp2ppbp/3p1np1/2p5/2PP4/2N2NP1/PP2PPBP/R1BQK2R w KQ c6"
"King's Indian: Saemisch, Benoni formation","rnbq1rk1/pp2ppb1/3p1npp/2pP2B1/2P1P3/2N2P2/PP4PP/R2QKBNR w KQ -"
"Sicilian: Najdorf, Poisoned pawn variation *","1r2kb1r/p1pq2pp/Q1n5/3npp2/6b1/P2PPN2/1P3PPP/RNB1KB1R b KQk -"
"QGD: Orthodox defense, Pillsbury attack *","2rqk2r/pp3ppp/2nbpn2/3p4/3P2b1/1P3N2/P1PNBPPP/R1BQ1RK1 w k -"
"Ruy Lopez: closed, Rossolimo defense","r1b2rk1/2q1bppp/p1pp1n2/np2p3/3PP3/2P2N1P/PPB2PP1/RNBQR1K1 w - -"
"Catalan: closed, Botvinnik variation *","r1b2rk1/pp2ppbp/2nq1np1/2pp4/3P4/2P1PN2/PP1NBPPP/R1BQ1RK1 w - -"
"King's Indian: fianchetto, classical variation, 8.e4 *","r1bq1rk1/pp3pbp/2n2np1/2ppp3/4P3/3P1NP1/PPPN1PBP/R1BQ1RK1 w - -"
"Alekhine's defense: two pawns' attack, Mikenas variation *","r1bqk1nr/pp1p1ppp/2n5/2b5/2pNp3/3PP3/PPP2PPP/RNBQKB1R b KQkq -"
"Evans gambit: Lasker defense","r1bqk1nr/ppp2ppp/1bnp4/4p3/2BPP3/2P2N2/P4PPP/RNBQ1RK1 w kq -"
"Scotch gambit","r1bqk1nr/pppp1ppp/2n5/8/1bBpP3/5N2/PPP2PPP/RNBQK2R w KQkq -"
"KGA: bishop's gambit, Bogolyubov variation *","r1bqk1nr/pppp2pp/2n5/2b1pP2/8/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Benoni: fianchetto variation *","r1bqk2r/pp2ppbp/2n2np1/8/2Pp4/3P1NP1/PP3PBP/RNBQ1RK1 b kq -"
"Ruy Lopez: old Steinitz defense, Nimzovich attack *","r1bqk2r/ppp2ppp/2n2n2/3pp3/4P3/2bP1N2/PPPB1PPP/R2QKB1R w KQkq -"
"Bishop's opening: Lopez gambit","r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1PP2/2P5/PP1PQ1PP/RNB1K1NR b KQkq -"
"Ruy Lopez: Berlin defense, Minckwitz variation","r1bqk2r/ppppbppp/2n5/1B2P3/4n3/5N2/PPP2PPP/RNBQ1RK1 b kq -"
"QGD semi-Slav: Stoltz variation","r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/2N1PN2/PPQ2PPP/R1B1KB1R b KQkq -"
"Sicilian, Szen variation, Dely-Kasparov gambit *","r1bqkb1r/pp3ppp/n1n5/2p1p3/3P4/P1N1PN2/1P3PPP/R1BQKB1R b KQkq -"
"Pirc: Austrian attack, Dragon formation *","r1bqkb1r/ppp3pp/2n2n2/3ppp2/2P5/3P1NP1/PP2PPBP/RNBQK2R b KQkq -"
"Three Knights: Winawer defense (Gothic defense) *","r1bqkb1r/pppp1ppp/2n2n2/4p3/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq -"
"Ruy Lopez: modern Steinitz defense, 5.O-O","r1bqkbnr/1pp2ppp/p1np4/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 b kq -"
"Sicilian: Nimzovich-Rossolimo attack (without ...d6)","r1bqkbnr/pp1ppppp/2n5/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq -"
"Novosibirsk opening","r1bqkbnr/pp1ppppp/2n5/8/7Q/2N5/PPP1PPPP/R1B1KBNR b KQkq -"
"QGD: Charousek (Petrosian) variation *","r1bqkbnr/pp2pppp/2n5/2pp4/3P4/4P3/PPP1BPPP/RNBQK1NR b KQkq -"
"Caro-Kann: Panov-Botvinnik attack, 5...e6 *","r1bqkbnr/pp3ppp/2n5/2pp4/3P4/4PN2/PP3PPP/RNBQKB1R b KQkq -"
"Inverted Hungarian","r1bqkbnr/pppp1ppp/2n5/4p3/4P3/5N2/PPPPBPPP/RNBQK2R b KQkq -"
"Alekhine's defense: exchange, Karpov variation *","r2q1rk1/pp2bpp1/2n2n1p/2pp1b2/5B2/1NNP2P1/PP2PPBP/R2Q1RK1 w - -"
"King's Indian: Samisch, double fianchetto variation *","r2qkbnr/pp4pp/2n1bp2/2ppp3/8/1P1P1NP1/P1P1PPBP/RNBQ1RK1 b kq -"
"French: MacCutcheon variation *","r2qkbnr/ppp2ppp/2n5/1B1pp3/3P2b1/4PN2/PPP2PPP/RNBQK2R b KQkq -"
"English: Queens Indian, Romanishin variation","rn1qkb1r/pbpp1ppp/1p2pn2/8/2P1P3/2NB1N2/PP1P1PPP/R1BQK2R b KQkq -"
"QGD: Capablanca-Duras variation *","rn1qkb1r/pp2pppp/5n2/2pp4/3P2b1/4PN1P/PPP2PP1/RNBQKB1R b KQkq -"
"Two Knights defense: Blackburne variation *","rnb1k2r/pppp1ppp/5q2/8/NP2P1n1/5N2/P4PPP/R1BQKB1R b KQkq -"
"Sicilian: Najdorf, Polugayevsky, Simagin variation","rnb1kb1r/2q2ppp/p3pn2/1p2P1B1/3N4/2N5/PPP1Q1PP/R3KB1R b KQkq -"
"Scandinavian: Anderssen counter-attack, Goteborg system","rnb1kbnr/ppp2ppp/8/q3p3/3P4/2N2N2/PPP2PPP/R1BQKB1R b KQkq -"
"Ruy Lopez: open, Motzko attack, Nenarokov variation *","rnb2rk1/pp3ppp/1bpq1n2/4N3/1PBPp3/P3B3/2P1NPPP/R2QK2R b KQ -"
"QGA: classical, 6...a6 *","rnbq1rk1/pp3ppp/4pn2/2bp4/2P5/P3PN2/1P3PPP/RNBQKB1R b KQ -"
"Ruy Lopez: open, Riga variation *","rnbq1rk1/ppp2ppp/5n2/b2PN3/8/P1N5/1PPP1PPP/R1BQKB1R b KQ -"
"King's Indian: 3.g3, counterthrust variation *","rnbqk1nr/pp2ppbp/6p1/2pp4/3P4/5NP1/PPP1PPBP/RNBQK2R b KQkq -"
"Robatsch defense: three pawns attack","rnbqk1nr/ppppppbp/6p1/8/3PPP2/8/PPP3PP/RNBQKBNR b KQkq -"
"Ruy Lopez: Berlin defense, Anderssen variation *","rnbqk2r/ppp2ppp/3p1n2/4p3/4P3/2bP1N2/PPP2PPP/R1BQKB1R w KQkq -"
"Queen's Indian: 4.g3","rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/5NP1/PP2PP1P/RNBQKB1R b KQkq -"
"KGA: bishop's gambit, Jaenisch variation","rnbqkb1r/pp1p1ppp/2p2n2/8/2B1Pp2/2N5/PPPP2PP/R1BQK1NR w KQkq -"
"Sicilian: Scheveningen, 6.f4","rnbqkb1r/pp3ppp/3ppn2/8/3NPP2/2N5/PPP3PP/R1BQKB1R b KQkq -"
"Sicilian: accelerated fianchetto, Maroczy bind, 5...Bg7 *","rnbqkb1r/pp3ppp/8/2pnp3/8/2N3P1/PP1PPPBP/R1BQK1NR b KQkq -"
"Grunfeld: Three Knights variation","rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq -"
"Old Indian: Tartakower (Wade) variation *","rnbqkb1r/ppp1pppp/5n2/3p2B1/8/3P4/PPP1PPPP/RN1QKBNR b KQkq -"
"Queen's pawn: stonewall attack","rnbqkb1r/ppp1pppp/5n2/3p4/3P4/3BP3/PPP2PPP/RNBQK1NR b KQkq -"
"Catalan opening","rnbqkb1r/pppp1ppp/4pn2/8/2PP4/6P1/PP2PP1P/RNBQKBNR b KQkq -"
"Petrov: Damiano variation *","rnbqkb1r/pppp1ppp/8/4N3/4n3/8/PPPP1PPP/RNBQKB1R b KQkq -"
"Sicilian: Kan, Maroczy bind (Reti variation)","rnbqkbnr/1p1p1ppp/p3p3/8/2PNP3/8/PP3PPP/RNBQKB1R b KQkq -"
"Sicilian: Smith-Morra gambit","rnbqkbnr/pp1ppppp/8/2p5/3PP3/8/PPP2PPP/RNBQKBNR b KQkq -"
"QGD: Marshall defense *","rnbqkbnr/pp2pppp/8/2pp4/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq -"
"Philidor: exchange variation","rnbqkbnr/ppp2ppp/3p4/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"Alekhine's defense *","rnbqkbnr/ppp2ppp/8/3p4/3Np3/3P4/PPP1PPPP/RNBQKB1R b KQkq -"
"KGD: Mafia defense *","rnbqkbnr/pppp2pp/8/4pp2/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq -"
"KGA: Gianutio counter-gambit","rnbqkbnr/pppp2pp/8/5p2/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq -"
"Dutch, 2.Bg5 variation","rnbqkbnr/ppppp1pp/8/5pB1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq -"
"Amar (Paris) opening","rnbqkbnr/pppppppp/8/8/8/7N/PPPPPPPP/RNBQKB1R b KQkq -"
"Nimzovich-Larsen attack: Polish variation","rnbqkbnr/p1pppppp/8/1p6/8/1P6/P1PPPPPP/RNBQKBNR w KQkq b6"
"Caro-Kann: anti-anti-Caro-Kann defence","rnbqkbnr/pp2pppp/2p5/3p4/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq d6"
"Sicilian: Alapin's variation (Smith-Morra declined)","rnbqkb1r/pp1ppppp/8/2pnP3/3P4/2P5/PP3PPP/RNBQKBNR b KQkq d3"
"Sicilian: Marshall variation","rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq d6"
"Sicilian: dragon, Yugoslav attack (9...Bd7)","r2q1rk1/p2bppbp/3p1np1/1p6/3BP2P/1BN2P2/PPPQ2P1/R3K2R b KQ -"
"Sicilian: Sozin, Fischer variation","r1bq1rk1/pp2bppp/2nppn2/8/3NPP2/1BN1B3/PPP3PP/R2QK2R b KQ f3"
"French defence","rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq d6"
"Ruy Lopez: closed, 7...d6, 8.d4","r1bqk2r/2p1bppp/p1np1n2/1p2p3/3PP3/1B3N2/PPP2PPP/RNBQR1K1 b kq d3"
"QGD Slav defence, Alekhine variation","rnbqkbnr/pp2pppp/2p5/8/2pPP3/2N5/PP3PPP/R1BQKBNR b KQkq e3"
"Gruenfeld defence","rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq d6"
"QGD: Orthodox defense, Rubinstein attack, Karlsbad variation *","2r1kb1r/ppq2ppp/2n1pn2/2pp4/3P2b1/P1P1PN2/1P1NBPPP/R1BQ1RK1 b k -"
"Ruy Lopez: classical defense, Boden variation","r1b1k1nr/ppppqppp/2n5/1Bb1p3/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq -"
"Vienna: Alekhine variation *","r1b1k2r/pppp1ppp/1bn5/8/4n2q/2NN4/PPPPBPPP/R1BQK2R w KQkq -"
"French: Winawer, advance, poisoned pawn, Konstantinopolsky variation *","r1b1kb1r/2p1nppp/p1p5/3P4/3Pp3/4P3/PPQ1NP1q/RNB1K1R1 w Qkq -"
"QGD: Orthodox defense, Bd3 line, Alekhine variation","r1b2rk1/pp1nqppp/2p1p3/3n4/2BPN3/4PN2/PP3PPP/2RQK2R b K -"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 defense, 9...Nxd4","r1bq1rk1/pp2bppp/3ppn2/6B1/3QPP2/2N5/PPP3PP/2KR1B1R b - -"
"King's Indian: fianchetto, classical variation, 8.e4","r1bq1rk1/pppn1pbp/3p1np1/4p3/2PPP3/2N2NP1/PP3PBP/R1BQ1RK1 b - -"
"Evans gambit: Goring attack","r1bqk1nr/ppp2ppp/1b1p4/n5B1/2BPP3/2N2N2/P4PPP/R2Q1RK1 b kq -"
"Scotch: Berger variation *","r1bqk2r/1ppn1p1p/p4b1Q/1B6/8/2N2N2/PP1P1PPP/n1BK3R w kq -"
"Sicilian: Kan, Maroczy bind - Bronstein variation *","r1bqk2r/ppb2ppp/2n5/1Bpnp3/8/P1N1PN2/1P1P1PPP/R1BQK2R w KQkq -"
"Sicilian: Sozin attack *","r1bqk2r/ppp2ppp/2n5/2bnp3/8/3PPN2/PP3PPP/RNBQKB1R w KQkq -"
"QGD Slav: Steiner variation *","r1bqkb1r/1p2pppp/2n2n2/p1Pp2B1/8/2P2N2/PP2PPPP/RN1QKB1R b KQkq -"
"Two Knights defense: Steinitz variation","r1bqkb1r/p4pp1/2p2n1p/n3p3/8/7N/PPPPBPPP/RNBQK2R b KQkq -"
"Two Knights defense: Bogolyubov variation","r1bqkb1r/p4ppp/2p2n2/nB2p1N1/8/5Q2/PPPP1PPP/RNB1K2R b KQkq -"
"English: Four Knights, kingside fianchetto *","r1bqkb1r/pp1ppp1p/2n2np1/2p5/4P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"English: symmetrical, Four Knights system","r1bqkb1r/pp1ppppp/2n2n2/2p5/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq -"
"Robatsch defense: Two Knights variation *","r1bqkb1r/ppp2ppp/2n2n2/3pp3/8/3P2P1/PPP1PPBP/RNBQK1NR w KQkq -"
"Ruy Lopez: Berlin defense","r1bqkb1r/pppp1ppp/2n2n2/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Vienna game","r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/2N5/PPPP1PPP/R1BQK1NR w KQkq -"
"King's Indian: Samisch variation *","r1bqkbnr/pp4pp/2n2p2/2ppp3/8/3P1NP1/PPP1PPBP/RNBQK2R w KQkq -"
"Queen's pawn game, Chigorin variation","r1bqkbnr/ppp1pppp/2n5/3p4/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"Pirc: Sveshnikov system *","r1bqkbnr/ppp2p1p/2n3p1/3pp3/8/3P1NP1/PPP1PP1P/RNBQKB1R w KQkq -"
"Scotch gambit","r1bqkbnr/pppp1ppp/2n5/8/2BpP3/5N2/PPP2PPP/RNBQK2R b KQkq -"
"Giuoco Piano: Aitken variation *","r2q1rk1/p4ppp/b1B2n2/2bp4/8/2N5/PPPP1PPP/R1BQK2R w KQ -"
"English: closed, Hort variation","r2qk1nr/ppp2pbp/2npb1p1/4p3/2P5/2N1P1P1/PP1PNPBP/R1BQK2R w KQkq -"
"Queen's Indian: Opocensky variation *","r2qk2r/pp1bppbp/2n2np1/2ppN3/8/1P2P3/PBPPBPPP/RN1QK2R w KQkq -"
"Sicilian: Pelikan, Bird variation","r2qkb1r/1p3ppp/p1npbn2/4p1B1/4P3/N1N5/PPP2PPP/R2QKB1R w KQkq -"
"QGD: Albin counter-gambit, Krenosz variation *","r2qkb1r/pp1bppp1/5n1p/1BpP4/4p3/2N5/PPP1QPPP/R3K1NR b KQkq -"
"QGD semi-Slav: anti-Meran, Lilienthal variation *","r2qkb1r/pp3p1p/2n3p1/2Pp4/1P2p1b1/2P1PN2/P2N1P2/R1BQKB1R w KQkq -"
"French: Winawer, advance, Bogolyubov variation *","r2qkbnr/pppb1ppp/2n5/1B1p4/2PPp3/4P3/PP3PPP/RNBQK1NR w KQkq -"
"Grunfeld defense: Smyslov, main line *","r3kb1r/pp3ppp/1qn1bn2/3pp1B1/8/6P1/PPPNPPBP/RN1Q1RK1 w kq -"
"English: Torre defensive system","rn1qkb1r/pp2pppp/2p2n2/3p4/2P3b1/1P3NP1/P2PPP1P/RNBQKB1R w KQkq -"
"Queen's Indian: Miles variation *","rn1qkb1r/pp2pppp/5n2/2pp1b2/8/1P2PN2/P1PP1PPP/RNBQKB1R w KQkq -"
"Alekhine's defense: modern variation, 4...Bg4","rn1qkb1r/ppp1pppp/3p4/3nP3/3P2b1/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"Catalan: open, 5.Qa4 Nbd7, 6.Qxc4 *","rnb1k1nr/pp2ppbp/6p1/2qp4/8/4PN2/PPPN1PPP/R1BQKB1R w KQkq -"
"Sicilian: Najdorf variation","rnb1k2r/1pq1bppp/p2ppn2/6B1/3NPP2/2N2Q2/PPP3PP/R3KB1R w KQkq -"
"Woozle defense","rnb1kb1r/pp1ppppp/5n2/q1pP4/8/2N5/PPP1PPPP/R1BQKBNR w KQkq -"
"KP: Napoleon's opening *","rnb1kbnr/pppp1ppp/5q2/4p3/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"King's Indian: Samisch, double fianchetto variation","rnbq1rk1/p1p1ppbp/1p1p1np1/8/2PPP3/2N1BP2/PP4PP/R2QKBNR w KQ -"
"Nimzo-Indian: 4.e3, main line with ...b6","rnbq1rk1/p1p2ppp/1p2pn2/3p4/1bPP4/2NBPN2/PP3PPP/R1BQK2R w KQ -"
"Ruy Lopez: open, 6.d4 b5 *","rnbq1rk1/ppp2ppp/5n2/b2pN3/1P2P3/P1N5/2PP1PPP/R1BQKB1R b KQ -"
"Ruy Lopez: Rabinovich variation *","rnbq2k1/pppp1ppp/1b6/3N4/1PBpr1n1/P4N2/2P2PPP/R1BQ1K1R b - -"
"KGD: classical, Soldatenkov variation","rnbqk1nr/ppp2ppp/3p4/2b1P3/4P3/5N2/PPPP2PP/RNBQKB1R b KQkq -"
"Bishop's opening: Calabrese counter-gambit, Jaenisch variation *","rnbqk1nr/ppp2ppp/3p4/2b1p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq -"
"KGD: classical counter-gambit","rnbqk1nr/ppp3pp/3p4/2b1pp2/4PP2/2P2N2/PP1P2PP/RNBQKB1R w KQkq -"
"KGA: bishop's gambit, Bryan counter-gambit *","rnbqk1nr/pppp2pp/8/2b1pP2/1P6/8/P1PP1PPP/RNBQKBNR b KQkq -"
"KGA: bishop's gambit, Cozio (Morphy) defense *","rnbqk1nr/pppp2pp/8/2b1pP2/8/5N2/PPPP1PPP/RNBQKB1R b KQkq -"
"Sicilian: Najdorf, Goteborg (Argentine) variation","rnbqk2r/1p2bp2/p2ppn1p/6p1/3NPP1B/2N2Q2/PPP3PP/R3KB1R w KQkq -"
"Ruy Lopez: classical defense, 4.c3 *","rnbqk2r/pp1p1ppp/2p2n2/4p3/1bB1P3/2N5/PPPP1PPP/R1BQK1NR w KQkq -"
"French: advance, Milner-Barry gambit *","rnbqk2r/pp3ppp/2pb1n2/3p4/2PPp3/1QN1P3/PP3PPP/R1B1KBNR w KQkq -"
"Ruy Lopez: Berlin defense, Duras variation *","rnbqk2r/pp3ppp/3p1n2/2p1p3/1b2P3/2NP1N2/PPP2PPP/R1BQKB1R w KQkq -"
"QGD: Lasker variation","rnbqk2r/ppp1bppp/4p3/3p2B1/2PPn3/2N1P3/PP3PPP/R2QKBNR w KQkq -"
"Queen's pawn game *","rnbqk2r/ppp2ppp/3bpn2/3p4/3P4/4PN2/PPP2PPP/RNBQKB1R w KQkq -"
"Sicilian: Prins variation, Venice attack *","rnbqk2r/ppp3pp/5p2/3np3/1b2P3/3P1N2/PP3PPP/RNBQKB1R w KQkq -"
"KGA: Blachly gambit *","rnbqk2r/pppp2pp/5n2/2b1pP2/6P1/2N5/PPPP1P1P/R1BQKBNR b KQkq -"
"Inverted Hungarian *","rnbqk2r/ppppbppp/5n2/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"KGD: classical, 4.c3 *","rnbqkb1r/pp1p2pp/2p2n2/4pp2/2B1P3/3P4/PPP2PPP/RNBQK1NR w KQkq -"
"QGD Slav: 3.Nf3 *","rnbqkb1r/pp2pppp/5n2/2pp4/3P4/2P5/PP2PPPP/RNBQKBNR w KQkq -"
"French: advance, Paulsen attack *","rnbqkb1r/pp3ppp/2p2n2/3p4/2PPp3/2N1P3/PP3PPP/R1BQKBNR w KQkq -"
"Philidor: Nimzovich (Jaenisch) variation","rnbqkb1r/ppp2ppp/3p1n2/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"Catalan: open, 5.Nf3","rnbqkb1r/ppp2ppp/4pn2/8/2pP4/5NP1/PP2PPBP/RNBQK2R b KQkq -"
"Petrov: modern (Steinitz) attack *","rnbqkb1r/ppp2ppp/5n2/3pp3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"KGA: Abbazia defense (classical defense, modern defense[!]) *","rnbqkb1r/pppp2pp/5n2/4pP2/3P4/8/PPP2PPP/RNBQKBNR b KQkq -"
"Bird: From gambit, Lasker variation *","rnbqkb1r/ppppp1pp/5n2/8/6P1/3B4/PPP2P1P/RNBQK1NR b KQkq -"
"Polish: Tubingen variation","rnbqkb1r/pppppppp/7n/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq -"
"Nimzovich-Larsen attack: symmetrical variation","rnbqkbnr/p1pppppp/1p6/8/8/1P6/P1PPPPPP/RNBQKBNR w KQkq -"
"King's Indian: Anti-Grunfeld *","rnbqkbnr/pp2pppp/8/2p5/3p4/5NP1/PPPPPP1P/RNBQKB1R w KQkq -"
"QGD: semi-Slav","rnbqkbnr/pp3ppp/2p1p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"Mieses opening *","rnbqkbnr/ppp1pppp/3p4/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Bird's opening","rnbqkbnr/ppp1pppp/8/3p4/5P2/8/PPPPP1PP/RNBQKBNR w KQkq -"
"QGA: 3.Nf3","rnbqkbnr/ppp1pppp/8/8/2pP4/5N2/PP2PPPP/RNBQKB1R b KQkq -"
"Sicilian: Smith-Morra gambit *","rnbqkbnr/ppp2ppp/8/3pp3/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"French: Labourdonnais variation *","rnbqkbnr/pppp2pp/8/4pp2/8/4P3/PPPP1PPP/RNBQKBNR w KQkq -"
"Ruy Lopez: closed, Flohr-Zaitsev system (Lenzerheide variation) *","rnbqr1k1/pp1p1pp1/1bp2n1p/4p3/1P2P3/P1NP1N2/1BP1BPPP/R2Q1RK1 b - -"
"Ruy Lopez: closed, Rossolimo defense *","rnbqr1k1/ppb2pp1/2p2n1p/3pp3/NP2P3/P1PP1N2/2Q1BPPP/R1B2RK1 b - -"
"Ware (Meadow Hay) opening","rnbqkbnr/pppppppp/8/8/P7/8/1PPPPPPP/RNBQKBNR b KQkq a3"
"Budapest defence declined","rnbqkb1r/pppp1ppp/5n2/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq e6"
"King's pawn game","rnbqkbnr/pppp1ppp/8/4p3/4P3/8/PPPP1PPP/RNBQKBNR w KQkq e6"
"Dutch: stonewall variation","rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - d6"
"Alekhine's defence","rnbqkb1r/pppppppp/8/3nP3/2P5/8/PP1P1PPP/RNBQKBNR b KQkq c3"
"Pirc-Robatsch (4.Be3 Nh6)","rnbqk2r/ppp1ppbp/3p2pn/8/3PP3/2N1B3/PPP2PPP/R2QKBNR w KQkq -"
"KGA: bishop's gambit, Chigorin's attack","rnb1kbnr/ppp2p1p/8/3B2p1/4Pp1q/8/PPPP2PP/RNBQ1KNR w kq g6"
"Robatsch defence: Geller's system","r1bqk1nr/ppp1ppbp/2np2p1/8/3PP3/2P2N2/PP3PPP/RNBQKB1R w KQkq -"
"Robatsch defence: Root variation","rnbqkbnr/1pp1pp1p/p2p2p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"Sicilian: modern Scheveningen, main line","r1bq1rk1/pp2bppp/2nppn2/8/3NPP2/2N1B3/PPP1B1PP/R2Q1RK1 b - f3"
"QGD: semi-Tarrasch (with e3)","r1bq1rk1/pp2bppp/2n1p3/3n4/2BP4/2N2N2/PP3PPP/R1BQR1K1 b - -"
"QGD: semi-Slav, Botvinnik system (anti-Meran)","rnbqkb1r/p4ppp/2p1pn2/1p4B1/2pPP3/2N2N2/PP3PPP/R2QKB1R w KQkq b6"
"QGD: Neo-orthodox accelerated (5.Bg5 h6) variation","rnbqk2r/ppp1bpp1/4pn1p/3p2B1/2PP4/2N2N2/PP2PPPP/R2QKB1R w KQkq -"
"Nimzo-Indian: classical (4...c5)","rnbqk2r/pp1p1ppp/4pn2/2P5/1bP5/2N5/PPQ1PPPP/R1B1KBNR b KQkq -"
"King's Indian: fianchetto, Yugoslav Panno","1rbq1rk1/4ppbp/p2p1np1/nppP4/2P5/1PN3P1/P1QNPPBP/R1B2RK1 w - b6"
"Philidor: Nimzovich, Sozin variation *","r1b2rk1/1pp1qppp/2n2n2/p1bPp3/8/2PP1N2/PP1NBPPP/R1BQ1RK1 b - -"
"Four Knights: Alatortsev variation","r1b2rk1/ppp1qppp/2n2n2/1B1pp3/1b2P3/3P1N2/PPP1NPPP/R1BQ1RK1 w - -"
"King's Indian: fianchetto, Panno variation","r1bq1rk1/1pp1ppbp/p1np1np1/8/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"King's Indian: fianchetto, Yugoslav Panno *","r1bq1rk1/pp2ppbp/2n2np1/2p5/2Pp4/2NP1NP1/PP2PPBP/R1BQ1RK1 w - -"
"Catalan: closed, 6...Nbd7","r1bq1rk1/pppnbppp/4pn2/3p4/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - -"
"English: Anglo-Grunfeld, Czech defense *","r1bqk1nr/pp1pppbp/2n3p1/8/8/1N4P1/PPP1PP1P/RNBQKB1R b KQkq -"
"QGD: Stonewall variation *","r1bqk2r/pp1n1ppp/3bpn2/2ppN3/3P1P2/2P1P3/PP4PP/RNBQKB1R b KQkq -"
"King's Indian: Petrosian system, main line *","r1bqk2r/pp2bppp/2n2n2/2p1p3/3pP3/3P1NP1/PPPN1PBP/R1BQ1RK1 b kq -"
"Sicilian: Velimirovic attack","r1bqk2r/pp2bppp/2nppn2/8/2BNP3/2N1B3/PPP1QPPP/R3K2R b KQkq -"
"Ruy Lopez: open, 6.d4 b5","r1bqkb1r/2pp1ppp/p1n5/1p2p3/B2Pn3/5N2/PPP2PPP/RNBQ1RK1 w kq -"
"Tayler opening","r1bqkb1r/pppp1ppp/2n2n2/4p3/3PP3/5N2/PPP1BPPP/RNBQK2R b KQkq -"
"Beefeater defense *","r1bqkbnr/p3pppp/2p5/2p5/2Pp1P2/6P1/PP1PP2P/RNBQK1NR b KQkq -"
"English: Bremen system with ...g6 *","r1bqkbnr/pp1ppp1p/2n3p1/2p5/4P3/5NP1/PPPP1P1P/RNBQKB1R b KQkq -"
"Sicilian defense","r1bqkbnr/pp1ppppp/2n5/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq -"
"Sicilian: chameleon variation","r1bqkbnr/pp1ppppp/2n5/2p5/4P3/2N5/PPPPNPPP/R1BQKB1R b KQkq -"
"English opening *","r1bqkbnr/pp1ppppp/2n5/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -"
"Modern defense: Averbakh system, Randspringer variation *","r1bqkbnr/pp3ppp/2n5/2ppp3/5P2/3P2P1/PPP1P1BP/RNBQK1NR b KQkq -"
"QGD: Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation","r1bqkbnr/pp3ppp/2n5/3p4/2pPP3/2N2NP1/PP3P1P/R1BQKB1R b KQkq -"
"Ponziani opening","r1bqkbnr/pppp1ppp/2n5/4p3/4P3/2P2N2/PP1P1PPP/RNBQKB1R b KQkq -"
"Ruy Lopez: closed, Bogolyubov variation","r2q1rk1/2p1bppp/p1np1n2/1p2p3/3PP1b1/1BP2N2/PP3PPP/RNBQR1K1 w - -"
"King's Indian: Averbakh, 6...c5 *","r2qk1nr/pp2bppp/2n5/2ppp3/2P3b1/3P1NP1/PP2PPBP/RNBQ1RK1 b kq -"
"Ruy Lopez: open, Motzko attack","r2qk2r/2p2ppp/p1n1b3/1pbpP3/4n3/1BPQ1N2/PP3PPP/RNB2RK1 b kq -"
"QGD: Manhattan variation *","r2qkbnr/pp3ppp/2n1p3/1Bpp4/3P2b1/4PN2/PPPN1PPP/R1BQK2R b KQkq -"
"Two Knights: Max Lange attack, Rubinstein variation","r3kb1r/ppp2ppp/2n1bP2/5qN1/2ppN3/8/PPP2PPP/R1BQR1K1 w kq -"
"Dutch: stonewall with Ba3 *","rn1q1rk1/p3ppbp/bp3np1/2pp4/3P1P2/2P1PN2/PP2B1PP/RNBQ1RK1 w - -"
"Sicilian: wing gambit, Marienbad variation *","rn1qkbnr/1bpp1ppp/p7/1P6/3Q4/8/PP2PPPP/RNB1KBNR w KQkq -"
"Giuoco Piano: Krause variation *","rn2k2r/pp4pp/1q3p2/1N1pN3/3Pn3/5K2/PPP3PP/R1BQ3R w kq -"
"QGD: Tartakower variation","rn3rk1/p1p1qpp1/1p2b2p/3p4/3P4/4PN2/PP3PPP/2RQKB1R w K -"
"French: Winawer, Kondratiyev variation","rnb1k1nr/pp3ppp/4p3/2pq4/1b1P4/2NB4/PPPB1PPP/R2QK1NR b KQkq -"
"French: classical, Alapin variation","rnb1k2r/pppnqppp/4p3/1N1pP3/3P4/8/PPP2PPP/R2QKBNR b KQkq -"
"KGA: Muzio gambit, From defense","rnb1kbnr/ppppqp1p/8/8/2B1Pp2/5Q2/PPPP2PP/RNB2RK1 w kq -"
"QGA: classical, 7...b5 *","rnb2rk1/pp2qppp/4pn2/2bp4/1PP5/P3PN2/5PPP/RNBQKB1R b KQ -"
"Nimzo-Indian: classical, Pirc variation","rnbq1rk1/pp1p1ppp/4pn2/2P5/1bP5/2N5/PPQ1PPPP/R1B1KBNR w KQ -"
"Ruy Lopez: exchange, Bronstein variation *","rnbq1rk1/pppp1ppp/5n2/4p3/4P3/P1PQ4/1PP2PPP/R1B1KBNR b KQ -"
"French: Winawer, advance variation","rnbqk1nr/pp3ppp/4p3/2ppP3/3P4/P1P5/2P2PPP/R1BQKBNR b KQkq -"
"Bishop's opening: Philidor variation","rnbqk1nr/pppp1ppp/8/2b1p3/2B1P3/2P5/PP1P1PPP/RNBQK1NR b KQkq -"
"French: Steinitz, Bradford attack","rnbqk2r/pp1n1ppp/4p3/2bpP3/5PQ1/2N5/PPP3PP/R1B1KBNR b KQkq -"
"Ruy Lopez: modern Steinitz defense, fianchetto (Bronstein) variation *","rnbqk2r/pp3ppp/2p2n2/b2pp3/4P3/P1NP2P1/1PPB1P1P/R2QKBNR b KQkq -"
"Ponziani counter-gambit, Cordel variation *","rnbqk2r/pp3ppp/2pb4/4n3/3pP3/3P1N2/PPP1B1PP/RNBQK2R b KQkq -"
"Giuoco Piano: LaBourdonnais variation *","rnbqk2r/pp3ppp/5n2/2bpp3/8/1BNP4/PPP2PPP/R1BQK1NR b KQkq -"
"Sicilian: accelerated fianchetto, Simagin variation *","rnbqk2r/ppn1bppp/8/2p1p3/8/2NP2PN/PP2PPBP/R1BQK2R b KQkq -"
"Nimzo-Indian: classical, Noa variation, main line, 7.Qc2","rnbqk2r/ppp2ppp/4p3/3p4/2PPn3/P7/1PQ1PPPP/R1B1KBNR b KQkq -"
"Nimzo-Indian: Three Knights variation","rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq -"
"Ruy Lopez: Nuremberg variation *","rnbqk2r/pppp1ppp/5n2/4p3/1b2P3/2N2P2/PPPP2PP/R1BQKBNR b KQkq -"
"KGA: Philidor gambit *","rnbqk2r/pppp2p1/5n2/2b1pP1p/6P1/8/PPPP1PBP/RNBQK1NR w KQkq -"
"Sicilian: Scheveningen, English variation","rnbqkb1r/1p3ppp/p2ppn2/8/3NP3/2N1B3/PPPQ1PPP/R3KB1R b KQkq -"
"Benoni: fianchetto variation","rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N2NP1/PP2PP1P/R1BQKB1R b KQkq -"
"Sicilian: Scheveningen, fianchetto variation","rnbqkb1r/pp3ppp/3ppn2/8/3NP3/2N3P1/PPP2P1P/R1BQKB1R b KQkq -"
"QGD: Semi-Tarrasch defense, Pillsbury variation","rnbqkb1r/pp3ppp/4pn2/2pp2B1/2PP4/2N2N2/PP2PPPP/R2QKB1R b KQkq -"
"English: Wimpey system","rnbqkb1r/pp3ppp/4pn2/2pp4/2P5/1P2PN2/PB1P1PPP/RN1QKB1R b KQkq -"
"King's pawn game *","rnbqkb1r/pppp1ppp/5n2/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq -"
"Petrov: modern attack, Symmetrical variation","rnbqkb1r/pppp1ppp/8/4p3/3Pn3/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"Alekhine's defense: Krejcik variation","rnbqkb1r/pppppppp/5n2/8/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq -"
"Nimzovich-Larsen attack: Dutch variation *","rnbqkbnr/p1pppppp/1p6/8/5P2/8/PPPPP1PP/RNBQKBNR b KQkq -"
"Sicilian: wing gambit, Santasiere variation","rnbqkbnr/pp1ppppp/8/8/1pP1P3/8/P2P1PPP/RNBQKBNR b KQkq c3"
"Queen's pawn game *","rnbqkbnr/pp2pppp/8/2pp4/8/4PN2/PPPP1PPP/RNBQKB1R b KQkq -"
"Budapest: Alekhine variation *","rnbqkbnr/pp3ppp/8/2p1p1N1/4p3/8/PPPP1PPP/RNBQKB1R w KQkq -"
"Budapest: Alekhine, Abonyi variation *","rnbqkbnr/pp4pp/8/2p1pp2/8/2N5/PPPP1PPP/RNBQKB1R b KQkq -"
"French defense *","rnbqkbnr/ppp2ppp/8/3pp3/3P4/4P3/PPP2PPP/RNBQKBNR b KQkq -"
"French: Reti (Spielmann) variation","rnbqkbnr/pppp1ppp/4p3/8/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq -"
"King's knight opening","rnbqkbnr/pppp1ppp/8/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -"
"Battambang opening","rnbqkbnr/pppp1ppp/8/4p3/8/P1N5/1PPPPPPP/R1BQKBNR b KQkq -"
"Anti-Borg (Desprez) opening","rnbqkbnr/pppppppp/8/8/7P/8/PPPPPPP1/RNBQKBNR b KQkq h3"
"Reti: King's Indian attack, French variation","r1bq1rk1/p2nbppp/2n1p3/2ppP3/1p6/3P1NP1/PPP2PBP/R1BQRNK1 w - -"
"English: Jaenisch gambit","rnbqkbnr/p1pppppp/8/1p6/2P5/8/PP1PPPPP/RNBQKBNR w KQkq b6"
"English: Bellon gambit","rnbqkb1r/p1pp1ppp/5n2/1p4N1/2P1p3/2N5/PP1PPPPP/R1BQKB1R w KQkq b6"
"Benoni: pawn storm variation","rnbqkb1r/pp3p1p/3p1np1/2pP4/4PP2/2N5/PP4PP/R1BQKBNR b KQkq f3"
"Bishop's opening: Lewis counter-gambit","rnbqk1nr/ppp2ppp/8/2bpp3/2B1P3/2P5/PP1P1PPP/RNBQK1NR w KQkq d6"
"Bishop's opening: Ponziani gambit","rnbqkb1r/pppp1ppp/5n2/4p3/2BPP3/8/PPP2PPP/RNBQK1NR b KQkq d3"
"Alekhine's defence: four pawns attack","rnbqkb1r/ppp1pppp/1n1p4/4P3/2PP1P2/8/PP4PP/RNBQKBNR b KQkq f3"
"Robatsch defence: Pseudo-Austrian attack","rnbqk1nr/ppp1ppbp/3p2p1/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq f3"
"Caro-Kann: Gurgenidze counter-attack","rnbqkbnr/p3pppp/2p5/1p1p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq b6"
"Scotch opening","r1bqkbnr/pppp1ppp/2n5/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq d3"
"Two knights defence","r1bqkb1r/ppp2ppp/2n5/3pp3/2B1N3/5N2/PPPP1PPP/R1BQK2R w KQkq d6"
"QGA: 4.Qc2","rnbqkb1r/pp2pppp/2p2n2/8/2pP4/5N2/PPQ1PPPP/RNB1KB1R w KQkq -"
"QGD: semi-Slav, anti-Meran, Denker variation","1nkr1b1r/p4p2/4pP2/1q1b2B1/Npp3Q1/6P1/1P3PBP/R4RK1 w - -"
"French: classical, Stahlberg variation *","2kr1b1r/pppq2pp/2n2n2/2Pp1p2/3Pp3/2N1P3/PP1NQPPP/R1B2RK1 b - -"
"French: Steinitz, Gledhill attack *","r1b1kbnr/ppp2ppp/2n5/3p2q1/3Pp3/4P3/PPPN1PPP/RNBQKB1R w KQkq -"
"Dutch: Leningrad, main variation with Nc6 *","r1bq1rk1/pp2ppbp/2n2np1/2pp4/5P2/2NP1NP1/PPP1P1BP/R1BQ1RK1 b - -"
"Nimzo-Indian: 4.e3, Gligoric system with 7...Nbd7 *","r1bq1rk1/pp3ppp/2nbpn2/1Bpp4/2PP4/4PN2/PP1N1PPP/R1BQ1RK1 b - -"
"French: Winawer, Alekhine gambit, Alatortsev variation","r1bq1rk1/ppp1bppp/2n1pn2/8/3PN3/P5N1/1PP1BPPP/R1BQK2R w KQ -"
"King's Indian: orthodox, 7...Nbd7, 8.Re1","r1bq1rk1/pppn1pbp/3p1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQR1K1 b - -"
"King's Indian: fianchetto with ...Nd7","r1bq1rk1/pppnppbp/3p1np1/8/2PP4/2N2NP1/PP2PPBP/R1BQK2R w KQ -"
"Ruy Lopez: open, 7.Bb3","r1bqkb1r/2pp1ppp/p1n5/1p2p3/3Pn3/1B3N2/PPP2PPP/RNBQ1RK1 b kq -"
"Two Knights defense","r1bqkb1r/p4ppp/2p2n2/n3p1N1/8/8/PPPPBPPP/RNBQK2R b KQkq -"
"King's Indian: fianchetto variation *","r1bqkb1r/pp2pp1p/2n2np1/2pp4/8/3P1NP1/PPP1PPBP/RNBQK2R w KQkq -"
"Old Indian: Ukrainian variation, 4.Nf3 *","r1bqkb1r/pp2pppp/2n2n2/2pp4/4P3/3P1N2/PPP2PPP/RNBQKB1R w KQkq -"
"King's Indian: Four pawns attack, dynamic line *","r1bqkb1r/pp4pp/2n2n2/2p1pp2/2Pp4/3P1NP1/PP2PPBP/RNBQ1RK1 w kq -"
"Four Knights: Scotch, 4...exd4 *","r1bqkb1r/ppp2ppp/2n2n2/3Pp3/8/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"Kevitz-Trajkovich defense","r1bqkb1r/pppppppp/2n2n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"QGD: semi-Slav, Marshall gambit *","r1bqkbnr/pp3ppp/2n5/2ppp3/3P4/2P1P3/PP3PPP/RNBQKBNR w KQkq -"
"KP: Nimzovich defense, Bogolyubov variation *","r1bqkbnr/ppp2ppp/2n5/3pp3/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq -"
"Ruy Lopez: old Steinitz defense","r1bqkbnr/ppp2ppp/2np4/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"KP: Colorado counter","r1bqkbnr/ppppp1pp/2n5/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Four Knights: symmetrical, Metger unpin *","r2q1rk1/p1p2ppp/2pp1n2/4p3/1b2P1b1/2NP1N2/PPP1QPPP/R1B2RK1 b - -"
"Sicilian: Dragon, classical, Reti-Tartakower variation *","r2q1rk1/ppp1b1pp/1nn1b3/4pp2/8/2NPBNP1/PP2PPBP/R1Q2RK1 b - -"
"Grunfeld: 5.Bf4 *","r2qkb1r/pp2pppp/2n2n2/2pp1b2/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq -"
"QGD Slav: exchange variation, 6.Bf4 Bf5","r2qkb1r/pp2pppp/2n2n2/3p1b2/3P1B2/2N2N2/PP2PPPP/R2QKB1R w KQkq -"
"QGD: 6.Nf3 *","r2qkb1r/pp3ppp/2n1pn2/2pp4/3P2b1/4PN2/PPP1BPPP/RNBQ1RK1 w kq -"
"Two Knights: Max Lange attack, Marshall variation","r3k2r/ppp2ppp/2n1bP2/2b2qN1/2ppN3/8/PPP2PPP/R1BQR1K1 b kq -"
"QGD semi-Slav: Meran, Rellstab attack","r3kb1r/5ppp/b3pn2/1p1qN1B1/3p4/3B4/PP2QPPP/R4RK1 b kq -"
"Queen's Indian: 4.g3 Bb7","rn1qkb1r/pbpp1ppp/1p2pn2/8/2PP4/5NP1/PP2PP1P/RNBQKB1R w KQkq -"
"Scotch game *","rn1qkb1r/pppb1ppp/8/1B2p2Q/1n6/2N5/PPPP1PPP/R1B1K1NR w KQkq -"
"Bishop's opening: Urusov gambit, Panov variation","rnb1k2r/ppp1qppp/5n2/3P4/1bBp4/2P2N2/PP3PPP/RNBQK2R w KQkq -"
"Ruy Lopez: open, Motzko attack *","rnb2rk1/pp3ppp/1bpq1n2/4N3/1PBPp3/P1N1B3/2P2PPP/R2QK2R w KQ -"
"Dutch: classical variation *","rnbq1rk1/pp2ppbp/5np1/2pp4/5P2/3PPN2/PPP1B1PP/RNBQ1RK1 b - -"
"Neo-Grunfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc3","rnbq1rk1/pp2ppbp/6p1/2pn4/3P4/2N2NP1/PP2PPBP/R1BQ1RK1 b - -"
"Benoni: fianchetto variation","rnbq1rk1/pp3pbp/3p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQK2R w KQ -"
"Ruy Lopez: open, 8.de *","rnbq1rk1/ppp2ppp/1b3n2/4N3/1P1Pp3/P1N5/2P2PPP/R1BQKB1R w KQ -"
"Petrov: classical attack, Mason variation *","rnbq1rk1/ppp2ppp/3b1n2/3pN3/3P4/8/PPP1BPPP/RNBQ1RK1 b - -"
"French: Albin-Alekhine-Chatard attack, Spielmann variation","rnbq1rk1/pppnbppp/4p3/3pP1B1/3P3P/2N5/PPP2PP1/R2QKBNR w KQ -"
"Ruy Lopez: Berlin defense, open variation *","rnbq1rk1/pppp1ppp/5n2/4N3/1b2P3/2N5/PPPP1PPP/R1BQKB1R b KQ -"
"Alekhine's defense: Balogh variation *","rnbqk1nr/ppp2ppp/8/2bp4/3Np3/3P4/PPP1PPPP/RNBQKB1R w KQkq -"
"Evans gambit: Stone-Ware variation *","rnbqk2r/p2p1ppp/2p2n2/2b1p3/4P3/2NB4/PPPP1PPP/R1BQK1NR b KQkq -"
"Catalan: open, classical line *","rnbqk2r/pp2ppbp/5np1/2Pp4/8/4PN2/PPP1BPPP/RNBQK2R b KQkq -"
"QGD semi-Slav: accelerated Meran (Alekhine variation)","rnbqkb1r/1p3ppp/p1p1pn2/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R w KQkq -"
"English: Romanishin gambit","rnbqkb1r/2pp1ppp/p3pn2/1p6/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq -"
"Ponziani: Fraser defense *","rnbqkb1r/pp3ppp/2p2n2/4N3/2BpP3/2N5/PPPP1PPP/R1BQK2R b KQkq -"
"QGA, Flohr variation *","rnbqkb1r/pp3ppp/4pn2/2Pp4/8/4BN2/PPP1PPPP/RN1QKB1R b KQkq -"
"QGA: classical variation","rnbqkb1r/pp3ppp/4pn2/2p5/2BP4/4PN2/PP3PPP/RNBQK2R w KQkq -"
"Reti: old Indian attack *","rnbqkb1r/ppp1pppp/3p1n2/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"French defense","rnbqkb1r/ppp2ppp/4pn2/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"Budapest: Alekhine, Abonyi variation","rnbqkb1r/pppp1ppp/2n5/8/2P1PP2/8/PP4PP/RNBQKBNR w KQkq -"
"King's knight opening *","rnbqkb1r/pppp1ppp/5n2/4p3/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"KGA: Kieseritsky, long whip (Stockwhip, classical) defense *","rnbqkb1r/pppp2p1/8/4pPPp/4n2P/8/PPPP1P2/RNBQKBNR b KQkq -"
"Alekhine's defense","rnbqkb1r/pppppppp/5n2/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Alekhine's defense: Steiner variation *","rnbqkbnr/p2p1ppp/1p6/2p5/4p3/1N6/PPPPPPPP/RNBQKB1R w KQkq -"
"Budapest defense *","rnbqkbnr/pp2pppp/8/2p3N1/4p3/8/PPPP1PPP/RNBQKB1R b KQkq -"
"Queen's pawn game *","rnbqkbnr/pp2pppp/8/2pp4/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"Old Benoni: Franco-Benoni defense *","rnbqkbnr/ppp2ppp/8/4p3/2Pp4/4P3/PP1P1PPP/RNBQKBNR w KQkq -"
"Fred","rnbqkbnr/ppppp1pp/8/5p2/4P3/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Ruy Lopez: closed, Balla variation *","rnbqr1k1/1pb2ppp/2p2n2/p2pp3/NPP1P3/P2P1N2/2Q1BPPP/R1B1K2R w KQ -"
"Mieses opening","rnbqkbnr/pppp1ppp/8/4p3/8/3P4/PPP1PPPP/RNBQKBNR w KQkq e6"
"English: Neo-Tarrasch","r1bqkb1r/pp3ppp/2n1pn2/2pp4/2P5/5NP1/PP1PPPBP/RNBQ1RK1 w kq -"
"English: four knights, Nimzovich variation","r1bqkb1r/pppp1ppp/2n2n2/4p3/2P1P3/2N2N2/PP1P1PPP/R1BQKB1R b KQkq e3"
"Danish gambit: Soerensen defence","rnbqkbnr/ppp2ppp/8/3p4/3pP3/2P5/PP3PPP/RNBQKBNR w KQkq d6"
"Reversed Grob (Borg/Basman defence/macho Grob)","rnbqkbnr/pppppp1p/8/6p1/4P3/8/PPPP1PPP/RNBQKBNR w KQkq g6"
"Four knights: Svenonius variation","r1bq1rk1/ppp2ppp/2n2n2/1B1pp3/4P3/2PP1N2/P1P2PPP/R1BQ1RK1 w - d6"
"Sicilian: Richter-Rauzer, Rauzer attack ...Be7 ...f4 defence","r1bq1rk1/pp2bppp/2nppn2/6B1/3NPP2/2N5/PPPQ2PP/2KR1B1R b - f3"
"Ruy Lopez: Berlin defence, Trifunovic variation","r1bqk2r/ppp1bppp/2n5/1B1pp3/3Pn3/5N2/PPP1QPPP/RNB2RK1 w kq d6"
"Ruy Lopez: closed, Breyer (10.d4)","rnbq1rk1/2p1bppp/p2p1n2/1p2p3/3PP3/1BP2N1P/PP3PP1/RNBQR1K1 b - d3"
"QGD: semi-Slav, Stoltz variation","r1bq1rk1/pp1n1ppp/2pbpn2/3p4/2PP4/2N1PN2/PPQ1BPPP/R1B2RK1 b - -"
"QGD: Orthodox defense, Capablanca variation *","2rqk2r/pp3ppp/2n1pn2/3p4/1b1P2b1/1P3N2/P1PNBPPP/R1BQ1RK1 w k -"
"Ruy Lopez: closed (with ...d6)","r1bq1rk1/2p1bppp/p1np1n2/1p2p3/4P3/1BP2N2/PP1P1PPP/RNBQR1K1 w - -"
"King's Indian: fianchetto, classical main line *","r1bq1rk1/pp3pb1/2n2npp/2ppp3/4P3/2PP1NP1/PP1N1PBP/R1BQ1RK1 w - -"
"Nimzo-Indian: 4.e3, Gligoric system with 7...dc *","r1bq1rk1/pp3ppp/2n1pn2/1Bbp4/2P5/4PN2/PP3PPP/RNBQ1RK1 w - -"
"English: symmetrical, Botvinnik system","r1bqk1nr/pp1pppbp/2n3p1/2p5/2P1P3/2N3P1/PP1P1PBP/R1BQK1NR b KQkq -"
"Dutch: Hort-Antoshin system *","r1bqk1nr/pp2ppbp/2n3p1/2pp4/5P2/2PP1N2/PPQ1P1PP/RNB1KB1R b KQkq -"
"Sicilian: closed, 6.Be3","r1bqk1nr/pp2ppbp/2np2p1/2p5/4P3/2NPB1P1/PPP2PBP/R2QK1NR b KQkq -"
"English: symmetrical variation *","r1bqk2r/pp1pppbp/2n2np1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQK2R b KQkq -"
"QGD: Semi-Tarrasch, 5.cd *","r1bqkb1r/pp2pppp/2n2n2/3p4/2Pp4/4PN2/PP3PPP/RNBQKB1R w KQkq -"
"Nimzo-Indian: 4.e3 e8g8, 5.Nf3 d7d5 *","r1bqkb1r/pp3ppp/2n1pn2/1Bpp4/3P4/4PN2/PPP2PPP/RNBQ1RK1 b kq -"
"QGD Slav: 5.e3 (Alekhine variation) *","r1bqkb1r/pp3ppp/2n1pn2/2Pp4/8/2P2N2/PP2PPPP/RNBQKB1R w KQkq -"
"Four Knights: Scotch variation","r1bqkb1r/pppp1ppp/2n2n2/4p3/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq -"
"King's Indian: fianchetto, Simagin variation","r2q1rk1/ppp1ppbp/2np1np1/8/2PP2b1/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"English: Nenarokov variation *","r2qkb1r/p3pppp/2p5/2pn3b/4N3/5N1P/PPPP1PP1/R1BQK2R b KQkq -"
"Sicilian: Najdorf variation *","r3kb1r/ppp3pp/2n2q2/3npp2/6b1/P2PPN2/1PQ1BPPP/RNB1K2R b KQkq -"
"Evans gambit: Ulvestad variation *","rn1q1rk1/pb3ppp/5n2/2b1p3/N2p4/1B1P4/PPP2PPP/R1BQK1NR w KQ -"
"QGD: Pillsbury attack","rn1q1rk1/pbp1bppp/1p3n2/3pN1B1/3P4/2NBP3/PP3PPP/R2QK2R b KQ -"
"KGD: Falkbeer, main line, 7...Bf5","rn1qk2r/ppp2ppp/8/2bP1b2/4nP2/5N2/PPP1Q1PP/RNB1KB1R w KQkq -"
"Alekhine's defense: modern, Alekhine variation","rn1qkb1r/ppp1pppp/3p4/3nP3/2PP2b1/5N2/PP3PPP/RNBQKB1R b KQkq -"
"Scandinavian defense, Lasker variation","rn2kb1r/ppp1pppp/5n2/q7/3P2b1/2N2N1P/PPP2PP1/R1BQKB1R b KQkq -"
"Catalan: open, 5.Qa4 *","rnb1k1nr/pp2ppbp/6p1/q1Pp4/8/4PN2/PPP2PPP/RNBQKB1R w KQkq -"
"Pirc: Austrian attack, 6.Be3","rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2N1BN2/PPP3PP/R2QKB1R b KQ -"
"Ruy Lopez: Archangelsk (counterthrust) variation *","rnbq1rk1/pppp1ppp/1b3n2/4p3/1P2P3/P1N2N2/1BPP1PPP/R2QKB1R b KQ -"
"Ruy Lopez: Berlin defense, Beverwijk variation *","rnbq1rk1/pppp1ppp/5n2/4p3/1bB1P3/2N2N2/PPPP1PPP/R1BQK2R b KQ -"
"French: classical, Anderssen-Richter variation","rnbqk2r/ppp1bppp/4p3/3pP3/3P2Q1/2N5/PPP2PPP/R3KBNR b KQkq -"
"Pirc: bayonet (Mariotti) attack","rnbqk2r/ppp1ppbp/3p1np1/8/3PP2P/2N5/PPP1BPP1/R1BQK1NR b KQkq -"
"Bogo-Indian defense, Grunfeld variation","rnbqk2r/pppp1ppp/4pn2/8/1bPP4/5N2/PP1NPPPP/R1BQKB1R b KQkq -"
"Ruy Lopez: Alapin's defense *","rnbqk2r/pppp1ppp/5n2/1B2p3/1b2P3/2N5/PPPP1PPP/R1BQK1NR b KQkq -"
"Ruy Lopez: Caro variation *","rnbqk2r/pppp1ppp/5n2/b3p3/1P2P3/P1N5/2PP1PPP/R1BQKBNR b KQkq -"
"Ruy Lopez: Schliemann defense deferred *","rnbqk2r/pppp1ppp/5n2/b3p3/4PP2/P1N5/1PPP2PP/R1BQKBNR b KQkq -"
"KGA: King's knight's gambit *","rnbqk2r/pppp2pp/5n2/2b1pP2/6P1/8/PPPP1P1P/RNBQKBNR w KQkq -"
"English: London defensive system *","rnbqkb1r/p2ppp1p/1p3np1/2p5/3P1B2/2P2N2/PP2PPPP/RN1QKB1R b KQkq -"
"QGD Slav","rnbqkb1r/pp3ppp/2p1pn2/3p4/2PP4/4PN2/PP1N1PPP/R1BQKB1R b KQkq -"
"QGD semi-Slav: 5.Bg5 dc","rnbqkb1r/pp3ppp/2p1pn2/6B1/2pP4/2N2N2/PP2PPPP/R2QKB1R w KQkq -"
"Queen's Indian defense *","rnbqkb1r/ppp1pppp/5n2/3p4/8/1P3N2/P1PPPPPP/RNBQKB1R b KQkq -"
"Philidor: Nimzovich, Locock variation","rnbqkb1r/ppp2ppp/3p1n2/4p1N1/3PP3/8/PPP2PPP/RNBQKB1R b KQkq -"
"Philidor: Nimzovich, Klein variation","rnbqkb1r/ppp2ppp/3p1n2/4p3/2BPP3/5N2/PPP2PPP/RNBQK2R b KQkq -"
"Blackmar-Diemer: Euwe defense","rnbqkb1r/ppp2ppp/4pn2/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq -"
"Sicilian defense *","rnbqkb1r/ppp2ppp/8/3np3/8/2N2N2/PP1PPPPP/R1BQKB1R b KQkq -"
"Petrov: modern (Steinitz) attack","rnbqkb1r/pppp1ppp/5n2/4p3/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq -"
"Vienna: Paulsen-Mieses variation","rnbqkb1r/pppp1ppp/5n2/4p3/4P3/2N3P1/PPPP1P1P/R1BQKBNR b KQkq -"
"KGA: Abbazia defense, modern variation *","rnbqkb1r/pppp2pp/5n2/5P2/3p4/5N2/PPP2PPP/RNBQKB1R b KQkq -"
"Nimzovich-Larsen attack: English variation *","rnbqkbnr/p1pppppp/1p6/8/2P5/8/PP1PPPPP/RNBQKBNR b KQkq -"
"Caro-Kann: anti-Caro-Kann defense","rnbqkbnr/pp1ppppp/2p5/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq -"
"Sicilian: Keres variation (2.Ne2)","rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPPNPPP/RNBQKB1R b KQkq -"
"QGD: semi-Slav, Noteboom variation","rnbqkbnr/pp3ppp/2p1p3/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq -"
"Mieses opening *","rnbqkbnr/ppp1pppp/3p4/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq -"
"Queen's pawn: Lundin (Kevitz-Mikenas) defense *","rnbqkbnr/ppp1pppp/8/3p4/8/2N5/PPPPPPPP/R1BQKBNR b KQkq -"
"Caro-Masi defense *","rnbqkbnr/ppp2ppp/8/3pp3/8/2P2N2/PP1PPPPP/RNBQKB1R b KQkq -"
"Lemming defense *","rnbqkbnr/pppp1ppp/8/4p3/8/N7/PPPPPPPP/R1BQKBNR b KQkq -"
"St. George (Baker) defense *","rnbqkbnr/pppp1ppp/8/4p3/8/P7/1PPPPPPP/RNBQKBNR b KQkq -"
"Crab opening","rnbqkbnr/pppp1ppp/8/4p3/P6P/8/1PPPPPP1/RNBQKBNR b KQkq -"
"Alekhine's defense: Brooklyn defense *","rnbqkbnr/pppp1ppp/8/8/4p3/8/PPPPPPPP/RNBQKBNR b KQkq -"
"Queen's pawn","rnbqkbnr/pppppppp/8/8/3P4/8/PPP1PPPP/RNBQKBNR b KQkq -"
"Reti opening","rnbqkbnr/pppppppp/8/8/8/5N2/PPPPPPPP/RNBQKB1R b KQkq -"
"Santasiere's folly","rnbqkbnr/ppp1pppp/8/3p4/1P6/5N2/P1PPPPPP/RNBQKB1R b KQkq b3"
"Beefeater defence","rnbqk1nr/pp1pp2p/6p1/2pP1p2/2P5/2P5/P3PPPP/R1BQKBNR w KQkq f6"
"Queen's pawn: Andersson system 			","rnb1kb1r/1pqp1ppp/p3pn2/8/8/1N4P1/PPP1PPBP/RNBQ1RK1 b kq -"
"Benko gambit (7.e4)","rn1qkb1r/4pppp/b2p1n2/2pP4/4P3/2N5/PP3PPP/R1BQKBNR b KQkq e3"
"Bishop's opening: Lewis gambit","rnbqk1nr/pppp1ppp/8/2b1p3/2BPP3/8/PPP2PPP/RNBQK1NR b KQkq d3"
"KP: Nimzovich defence","r1bqkbnr/pppppppp/2n5/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq d3"
"Sicilian: wing gambit","rnbqkbnr/pp1ppppp/8/2p5/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq b3"
"Sicilian: wing gambit deferred","rnbqkbnr/pp2pppp/3p4/2p5/1P2P3/5N2/P1PP1PPP/RNBQKB1R b KQkq b3"
"Ruy Lopez: exchange variation, Alapin gambit","r2qkbnr/1pp2pp1/p1p5/4p2p/4P1b1/5N1P/PPPP1PP1/RNBQ1RK1 w kq h6"
"French: wing gambit","rnbqkbnr/pp3ppp/4p3/2ppP3/1P6/5N2/P1PP1PPP/RNBQKB1R b KQkq b3"
"Catalan: closed, Zagoryansky variation","r1bq1rk1/p2nbppp/1pp1pn2/3p4/P1PP4/5NP1/1PQ1PPBP/RNBR2K1 b - a3"
"Catalan: closed, modern line","r1bq1rk1/p2nbppp/1pp1pn2/3p4/2PP4/5NP1/PPQNPPBP/R1B2RK1 w - -"
"King's Indian: Petrosian system, Keres variation","r1bq1rk1/pppn1pb1/3p3p/3Pp1pn/2P1P2P/2N2NB1/PP2BPP1/R2QK2R b KQ h3"
"King's Indian: orthodox, Aronin-Taimanov, Benko attack","r1bq1rk1/pppnn1bp/3p2p1/3Ppp2/2P1P1P1/2N2P2/PP2B2P/R1BQNRK1 b - g3"
"Vienna game *","r1b1k1nr/pppp1ppp/1bn5/8/4P2q/3N4/PPPPBPPP/RNBQK2R b KQkq -"
"Nimzo-Indian: classical, Noa variation, 5.a3 *","r1b1kbnr/1pq1pppp/p1n5/1Bpp4/3P4/4PN2/PPP2PPP/RNBQK2R w KQkq -"
"QGD: Orthodox defense, Bd3 line, 11.O-O","r1b2rk1/pp1nqppp/2p1p3/3n4/2BP4/2N1PN2/PP3PPP/2RQ1RK1 b - -"
"Evans gambit: Richardson attack","r1bq1rk1/pppp1ppp/2n2n2/b3N3/2BPP3/2P5/P4PPP/RNBQ1RK1 b - -"
"Sicilian: accelerated fianchetto, Maroczy bind, 5...Bg7","r1bqk1nr/pp1pppbp/2n3p1/8/2PNP3/8/PP3PPP/RNBQKB1R w KQkq -"
"Scotch gambit: Cochrane variation","r1bqk1nr/pppp1ppp/2n5/b3P3/2B5/2P2N2/P4PPP/RNBQK2R b KQkq -"
"Nimzo-Indian: Spielmann, San Remo variation","r1bqk2r/pp1p1ppp/2n1p3/2n5/1bP5/1QN2N2/PP1BPPPP/R3KB1R w KQkq -"
"Two Knights defense: Yankovich variation","r1bqk2r/ppp2pp1/5n1p/2bP4/2P1p3/8/PPPNQPPP/RNB1K2R b KQkq -"
"Sicilian: Grand Prix attack, Schofman variation *","r1bqk2r/pppp2pp/2n2n2/2b1p3/2P2p2/2N1P1P1/PP1P1PBP/R1BQK1NR w KQkq -"
"QGD Slav: Soultanbeieff variation *","r1bqkb1r/1p2pppp/2n2n2/p1Pp4/8/2P1PN2/PP3PPP/RNBQKB1R b KQkq -"
"QGD semi-Slav: Meran, Pirc variation","r1bqkb1r/3n1ppp/p1p1pn2/8/1p1PP3/2NB1N2/PP3PPP/R1BQK2R w KQkq -"
"Scotch: Cochrane variation","r1bqkb1r/pp1p1Npp/2p1nn2/8/2B1P3/8/PPP2PPP/RNBQ1RK1 b kq -"
"Nimzo-Indian: Three Knights variation *","r1bqkb1r/pp2pppp/2n2n2/1Bpp4/8/4PN2/PPPP1PPP/RNBQK2R w KQkq -"
"English: Mikenas-Carls, Flohr variation *","r1bqkbnr/pp1p1ppp/2n5/2p5/3Pp3/4PN2/PPP2PPP/RNBQKB1R w KQkq -"
"Sicilian defense","r1bqkbnr/pp1ppppp/2n5/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Venezolana opening *","r1bqkbnr/ppp1pp1p/2np2p1/8/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -"
"Queen's pawn: Chigorin variation *","r1bqkbnr/ppp1pppp/2n5/3p4/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Vienna: Paulsen-Mieses variation *","r1bqkbnr/pppp1p1p/2n3p1/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Scotch: Relfsson gambit (`MacLopez')","r1bqkbnr/pppp1ppp/2n5/1B6/3pP3/5N2/PPP2PPP/RNBQK2R b KQkq -"
"Four Knights: symmetrical, Pillsbury variation *","r2q1rk1/ppp2ppp/2np1n2/1B2p3/1b2P1b1/3P1N2/PPP1NPPP/R1BQ1RK1 b - -"
"Ruy Lopez: open, Motzko attack, Nenarokov variation","r2qk2r/2p1nppp/p3b3/1pbpP3/4n3/1BPQ1N2/PP3PPP/RNB2RK1 w kq -"
"QGD Slav: exchange, Trifunovic variation","r2qk2r/pp3ppp/2n1pn2/3p1b2/1b1P1B2/1QN1PN2/PP3PPP/R3KB1R w KQkq -"
"Alekhine's defense: four pawns attack, Ilyin-Genevsky variation","r2qkb1r/ppp1p1pp/1nn1p3/2P5/3P2b1/5N2/PP4PP/RNBQKB1R b KQkq -"
"Richter-Veresov attack, Richter variation *","r2qkbnr/ppp1p1pp/2n2p2/3p4/3P1Bb1/5N2/PPP1PPPP/RN1QKB1R w KQkq -"
"Scotch: Blumenfeld attack *","rn1qkb1r/ppp2ppp/4b3/4p3/1nB5/2N2Q2/PPPP1PPP/R1B1K1NR w KQkq -"
"Caro-Kann: Two Knights, 3...Bg4","rn1qkbnr/pp2pppp/2p5/3p4/4P1b1/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"Bishop's opening: Pratt variation *","rnb1k1nr/pp3ppp/2p5/2PP4/2B4q/5p2/PPP2PPP/RNBQ1RK1 b kq -"
"Queen's Indian: Marienbad system, Berg variation *","rnb1k2r/pp2ppbp/5np1/2pq4/8/1P3N2/PB1PPPPP/RN1QKB1R w KQkq -"
"Philidor: Nimzovich, Rellstab variation *","rnb1kb1r/ppp2ppp/5n2/4N3/3qp3/3P4/PPP2PPP/RNBQKB1R w KQkq -"
"Gunderam defense","rnb1kbnr/ppppqppp/8/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Fried fox defense","rnbq1bnr/pppppkpp/5p2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQ -"
"KGA: bishop's gambit, Greco variation *","rnbq1knr/pppp2pp/8/2b1pP1Q/2B5/8/PPPP1PPP/RNB1K1NR b KQ -"
"Ruy Lopez: Marshall, main line, 12.d2d4 *","rnbq2k1/pp3ppp/1bp5/3p4/1P1Nr3/P1P5/4BPPP/R1BQ1RK1 w - -"
"Robatsch defense: Gurgenidze variation","rnbqk1nr/pp2ppb1/2p3p1/3pP2p/3P1P2/2N5/PPP3PP/R1BQKBNR w KQkq -"
"Robatsch defense: Two Knights, Suttles variation","rnbqk1nr/pp2ppbp/2pp2p1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq -"
"French: MacCutcheon, Grigoriev variation","rnbqk1r1/ppp2pP1/4p3/3p4/1b1P2Qp/2N5/PPP2PP1/R3KBNR b KQq -"
"Dutch: Leningrad, Basman system","rnbqk2r/pp1pp1bp/2p3pn/5p2/3P4/5NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"French: Winawer, advance, 6...Ne7","rnbqk2r/pp2nppp/4p3/2ppP3/3P4/P1P5/2P2PPP/R1BQKBNR w KQkq -"
"Neo-Grunfeld, 5.cd","rnbqk2r/ppp1ppbp/6p1/3n4/3P4/6P1/PP2PPBP/RNBQK1NR w KQkq -"
"Vienna: Zhuravlev countergambit","rnbqk2r/pppp1ppp/5n2/4p3/1b2P1Q1/2N5/PPPP1PPP/R1B1KBNR w KQkq -"
"Pirc defense","rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"English: Neo-Catalan","rnbqkb1r/ppp2ppp/4pn2/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq -"
"Sicilian *","rnbqkb1r/ppp2ppp/5n2/3Pp3/8/3P4/PP2PPPP/RNBQKBNR b KQkq -"
"KGD: Falkbeer, Charousek gambit","rnbqkb1r/ppp2ppp/8/3P4/4nP2/8/PPP1Q1PP/RNB1KBNR b KQkq -"
"Philidor: Philidor counter-gambit, del Rio attack *","rnbqkb1r/ppp2ppp/8/4P3/3P2n1/4p3/PPP3PP/RNBQKBNR w KQkq -"
"Bishop's opening: Berlin defense","rnbqkb1r/pppp1ppp/5n2/4p3/2B1P3/8/PPPP1PPP/RNBQK1NR w KQkq -"
"Vienna: Falkbeer variation","rnbqkb1r/pppp1ppp/5n2/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"Sicilian: Kan, Swiss cheese variation","rnbqkbnr/1p1p1p1p/p3p1p1/8/3NP3/3B4/PPP2PPP/RNBQK2R w KQkq -"
"Anderssen's opening *","rnbqkbnr/1ppppppp/p7/8/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Nimzovich-Larsen attack: Polish variation","rnbqkbnr/p1pppppp/8/1p6/8/1P6/P1PPPPPP/RNBQKBNR w KQkq -"
"Sicilian: Alapin's variation (2.c3) *","rnbqkbnr/pp1p1ppp/2p5/4p3/2P5/8/PP1PPPPP/RNBQKBNR w KQkq -"
"QGA: Schwartz defense *","rnbqkbnr/pp3ppp/8/2Ppp3/5P2/8/PPP1P1PP/RNBQKBNR b KQkq -"
"English opening: Agincourt variation","rnbqkbnr/ppp2ppp/4p3/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq -"
"Philidor: Philidor counter-gambit","rnbqkbnr/ppp3pp/3p4/4pp2/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"KGA: Sorensen gambit","rnbqkbnr/pppp1p1p/8/4N3/3PPpp1/8/PPP3PP/RNBQKB1R b KQkq -"
"KGA: King's knight's gambit","rnbqkbnr/pppp1p1p/8/6p1/2B1Pp2/5N2/PPPP2PP/RNBQK2R b KQkq -"
"KGA: Quaade gambit","rnbqkbnr/pppp1p1p/8/6p1/4Pp2/2N2N2/PPPP2PP/R1BQKB1R b KQkq -"
"Dunst (Sleipner-Heinrichsen) opening","rnbqkbnr/pppp1ppp/8/4p3/8/2N5/PPPPPPPP/R1BQKBNR w KQkq e6"
"Reti: Herrstroem gambit","rnbqkbnr/pppppp1p/8/6p1/8/5N2/PPPPPPPP/RNBQKB1R w KQkq g6"
"Benoni: 6.e4","rnbqkb1r/pp3ppp/3p1n2/2pP4/4P3/2N5/PP3PPP/R1BQKBNR b KQkq e3"
"Vienna: Steinitz gambit","r1bqkbnr/pppp1ppp/2n5/8/3PPp2/2N5/PPP3PP/R1BQKBNR b KQkq d3"
"KGA: Abbazia defence (classical defence, modern defence)","rnbqkbnr/ppp2ppp/8/3p4/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq d6"
"Sicilian: Boleslavsky variation","r1bqkb1r/pp3ppp/2np1n2/4p3/3NP3/2N5/PPP1BPPP/R1BQK2R w KQkq e6"
"Ruy Lopez: old Steinitz defence, semi-Duras variation","r2qkbnr/pppb1ppp/2np4/1B2p3/2PPP3/5N2/PP3PPP/RNBQK2R b KQkq c3"
"QGD: Orthodox defence (Bd3 line) fianchetto variation","r1bq1rk1/p2nbppp/2p1pn2/1p4B1/2BP4/2N1PN2/PP3PPP/2RQK2R w K b6"
"Neo-Gruenfeld (6.cxd5)","rnbqk2r/pp2ppbp/5np1/3p4/3P4/5NP1/PP2PPBP/RNBQK2R w KQkq -"
"Nimzo-Indian: 4.e3, main line (with ...c5)","rnbq1rk1/pp3ppp/4pn2/2pp4/1bPP4/2NBPN2/PP3PPP/R1BQK2R w KQ c6"
"King's Indian: orthodox, Aronin-Taimanov variation","r1bq1rk1/ppp3bp/2np1pp1/4p3/2PPP1n1/2N2N2/PP2BPPP/R1BQ1RK1 b - -"
"Ruy Lopez: closed, Borisenko defense","r1bq1rk1/4bppp/p1np1n2/1pp1p3/3PP3/2P2N1P/PPB2PP1/RNBQR1K1 w - -"
"QGD: Orthodox defense, Bd3 line, fianchetto variation","r1bq1rk1/p2nbppp/2p1pn2/1p4B1/2BP4/2N1PN2/PP3PPP/2RQK2R w K -"
"QGD: Orthodox defense, Bd3 line, Capablanca freeing maneuver","r1bq1rk1/pp1nbppp/2p1p3/3n2B1/2BP4/2N1PN2/PP3PPP/2RQK2R w K -"
"Four Knights: symmetrical, Maroczy system *","r1bq1rk1/ppp1nppp/3p1n2/1B2p3/1b2P3/2NP1N2/PPP2PPP/R1BQ1RK1 w - -"
"QGD: Orthodox defense, Rubinstein variation","r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2N1PN2/PPQ2PPP/R3KB1R b KQ -"
"Scotch: Goring gambit","r1bqk1nr/pppp1ppp/2n5/8/1b2P3/2N2N2/PP3PPP/R1BQKB1R w KQkq -"
"Evans gambit: Stone-Ware variation","r1bqk1nr/pppp1ppp/2nb4/4p3/2B1P3/2P2N2/P2P1PPP/RNBQK2R w KQkq -"
"Giuoco Piano: Ghulam Kassim variation","r1bqk2r/pppp1ppp/2n5/2bBP3/8/2p2NK1/PP4PP/RNBQ3R b kq -"
"Ponziani: Fraser defense","r1bqk2r/pppp1ppp/2n5/2bPp3/4n3/2P2N2/PP3PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: open Berlin defense, 5...Be7","r1bqk2r/ppppbppp/2n5/1B2p3/3Pn3/5N2/PPP2PPP/RNBQ1RK1 w kq -"
"Ruy Lopez: open, Berger variation","r1bqkb1r/2p2ppp/p7/1p1p4/P2pn3/1BN5/1PP2PPP/R1BQ1RK1 b kq -"
"Four Knights game *","r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq -"
"French: Winawer (Nimzovich) variation *","r1bqkbnr/ppp2ppp/2n5/1B1pp3/3P4/4P3/PPP2PPP/RNBQK1NR b KQkq -"
"Scandinavian: Anderssen counter-attack *","r1bqkbnr/ppp2ppp/2n5/3p4/Q3P3/8/PPP2PPP/RNB1KBNR b KQkq -"
"Robatsch defense: Gurgenidze variation *","r1bqkbnr/ppp3pp/2n5/3p1p2/3Pp2P/2P3P1/PP2PPB1/RNBQK1NR b KQkq -"
"French: Tarrasch, closed variation *","r1bqkbnr/pppn1ppp/8/3pp3/3P4/4PN2/PPP2PPP/RNBQKB1R b KQkq -"
"Irish (Chicago) gambit","r1bqkbnr/pppp1ppp/8/4n3/3PP3/8/PPP2PPP/RNBQKB1R b KQkq -"
"Two Knights: Max Lange attack, Berger variation *","r1bqr1k1/ppp4p/8/2PPnpp1/6n1/1BN1BpQ1/PPP2PPP/2KR3R b - -"
"Evans gambit: Alapin-Steinitz variation","r2qk1nr/ppp2ppp/2np4/b3p3/2BPP1b1/2P2N2/P4PPP/RNBQ1RK1 w kq -"
"Petrov: classical attack, Berger variation","r2qk2r/ppp1b1pp/2n5/3p1p2/3Pn1b1/2PB1N2/PP1N1PPP/R1BQR1K1 b kq -"
"Two Knights: Max Lange attack, Schlechter variation","r2qk2r/ppp2pPp/2n1b3/2b5/2pp4/5N2/PPP2PPP/RNBQR1K1 b kq -"
"QGD Slav: Dutch, Lasker variation","r2qkb1r/pp2pppp/n1p2n2/5b2/P1pP4/2N1PN2/1P3PPP/R1BQKB1R w KQkq -"
"Ruy Lopez: closed Berlin defense, Wolf variation","r2qkb1r/pppb1ppp/2np1n2/1B6/3pP3/2N2N2/PPP2PPP/R1BQ1RK1 w kq -"
"Nimzo-Indian: Leningrad, main line *","r2qkbnr/pp2pppp/2n5/1Bp4b/2Pp4/3PPN1P/PP3PP1/RNBQK2R b KQkq -"
"QGD: Lasker variation *","r2qkbnr/pp3ppp/2n1p3/2ppN3/3P2b1/4P3/PPP1BPPP/RNBQK2R b KQkq -"
"French: Albin-Alekhine-Chatard attack, Breyer variation *","r2qkbnr/ppp2pp1/2n5/3p3p/2PPp1b1/4P3/PP1NBPPP/RNBQK2R b KQkq -"
"Evans gambit: Tartakower attack *","rnb1k2r/p4ppp/1qp2n2/2bpp3/B3P3/2NP4/PPP2PPP/R1BQK1NR w KQkq -"
"Latvian: Nimzovich variation","rnb1kbnr/ppp3pp/3p1q2/8/3Pp3/4N3/PPP2PPP/RNBQKB1R b KQkq -"
"QGA: classical, 8...Bb7 *","rnb2rk1/pp2qppp/1b2pn2/3p4/1PP5/P3PN2/1B3PPP/RN1QKB1R b KQ -"
"QGD: 6.Nf3","rnbq1rk1/ppp1bppp/4pn2/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQ -"
"Ruy Lopez: Worrall attack, solid line *","rnb2rk1/ppppqppp/1b3n2/4p3/1P2P3/P1NP1N2/2P1BPPP/R1BQK2R b KQ -"
"Ruy Lopez: Steinitz defense deferred, Lipnitsky variation *","rnbq1rk1/ppp2ppp/5n2/3pp1B1/4P3/P1PP1N2/2P2PPP/R2QKB1R b KQ -"
"Ruy Lopez: closed Berlin defense, Chigorin variation *","rnbq1rk1/ppp2ppp/5n2/3pp3/1b2P3/2NP4/PPPN1PPP/R1BQKB1R b KQ -"
"Grunfeld: 5.e3","rnbqk2r/ppp1ppbp/5np1/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R b KQkq -"
"Ruy Lopez: Taimanov (chase/wing/accelerated counterthrust) variation *","rnbqk2r/pppp1ppp/1b3n2/4p3/NP2P3/P7/2PP1PPP/R1BQKBNR b KQkq -"
"Sicilian: Prins (Moscow) variation","rnbqkb1r/pp2pppp/3p1n2/8/3NP3/5P2/PPP3PP/RNBQKB1R b KQkq -"
"Sicilian: Scheveningen, Vitolins variation","rnbqkb1r/pp3ppp/3ppn2/1B6/3NP3/2N5/PPP2PPP/R1BQK2R b KQkq -"
"Queen's pawn game, Zukertort variation","rnbqkb1r/pp3ppp/4pn2/2pp4/3P4/1P2PN2/P1PN1PPP/R1BQKB1R b KQkq -"
"Pirc: classical (Two Knights) system","rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq -"
"Philidor: exchange variation *","rnbqkb1r/ppp2ppp/8/3np3/8/3P1N2/PPP2PPP/RNBQKB1R b KQkq -"
"Philidor: Lopez counter-gambit, Jaenisch variation","rnbqkb1r/ppp3pN/3p3n/5p2/2BpP3/8/PPP2PPP/RNBQK2R b KQkq -"
"KGA: Rosentreter gambit *","rnbqkb1r/ppp3pp/5n2/3ppP2/6P1/8/PPPP1P1P/RNBQKBNR w KQkq -"
"QP counter-gambit (elephant gambit) *","rnbqkb1r/pppp1ppp/5n2/4p3/3PP3/8/PPP2PPP/RNBQKBNR b KQkq -"
"Dutch defense, Blackburne variation","rnbqkb1r/pppp2pp/4pn2/5p2/3P4/6PN/PPP1PPBP/RNBQK2R b KQkq -"
"Alekhine's defense: Welling variation","rnbqkb1r/pppppppp/8/3nP3/8/1P6/P1PP1PPP/RNBQKBNR b KQkq -"
"Polish: Tubingen variation *","rnbqkbnr/p1pppppp/8/1p6/8/7N/PPPPPPPP/RNBQKB1R b KQkq -"
"Sicilian: Smith-Morra gambit *","rnbqkbnr/pp3ppp/2p5/3Pp3/8/8/PP1PPPPP/RNBQKBNR w KQkq -"
"French: advance, Nimzovich variation","rnbqkbnr/pp3ppp/4p3/2ppP3/3P2Q1/8/PPP2PPP/RNB1KBNR b KQkq -"
"Hippopotamus defense *","rnbqkbnr/pp3ppp/8/2ppp3/8/5PPN/PPPPP2P/RNBQKB1R b KQkq -"
"Polish defense *","rnbqkbnr/ppp1pppp/8/3p4/1P6/8/P1PPPPPP/RNBQKBNR b KQkq -"
"Queen's pawn game *","rnbqkbnr/ppp1pppp/8/3p4/8/5N2/PPPPPPPP/RNBQKB1R b KQkq -"
"KGD: Falkbeer, Tartakower variation","rnbqkbnr/ppp2ppp/8/3pp3/4PP2/5N2/PPPP2PP/RNBQKB1R b KQkq -"
"Lengfellner system *","rnbqkbnr/ppp2ppp/8/3pp3/8/3PP3/PPP2PPP/RNBQKBNR b KQkq -"
"St. George defense *","rnbqkbnr/ppp2ppp/8/3pp3/8/P3P3/1PPP1PPP/RNBQKBNR b KQkq -"
"French: Chigorin variation","rnbqkbnr/pppp1ppp/4p3/8/4P3/8/PPPPQPPP/RNB1KBNR b KQkq -"
"Dutch, Von Pretzel gambit","rnbqkbnr/pppp2pp/4p3/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq -"
"Bishop's opening: Calabrese counter-gambit, Jaenisch variation","rnbqkbnr/pppp2pp/8/4pp2/2B1P3/3P4/PPP2PPP/RNBQK1NR b KQkq -"
"Dutch: Staunton gambit","rnbqkbnr/ppppp1pp/8/5p2/3PP3/8/PPP2PPP/RNBQKBNR b KQkq -"
"Grob's attack","rnbqkbnr/pppppppp/8/8/6P1/8/PPPPPP1P/RNBQKBNR b KQkq -"
"English: Anglo-Dutch defence","r1bqk2r/ppp1p1bp/2np1np1/5p2/2P1P3/2NP2P1/PP2NPBP/R1BQK2R b KQkq -"
"Sicilian: Richter-Rauzer, Rauzer attack (...a6 ...Bd7) defence","r2qkb1r/1p1b1ppp/p1nppn2/6B1/3NPP2/2N5/PPPQ2PP/2KR1B1R b kq f3"
"Ruy Lopez: closed, Breyer, Gligoric variation","r2q1rk1/1b1nbppp/p2p1n2/1pp1p3/3PP3/2P2N1P/PPBN1PP1/R1BQR1K1 w - c6"
"Queen's pawn game","rnbqkbnr/ppp1pppp/8/3p4/3P4/8/PPP1PPPP/RNBQKBNR w KQkq d6"
"Catalan: open, Alekhine (English line)","r1bqkb1r/1p1n1ppp/p3pn2/8/3p4/5NP1/PPQ1PPBP/RNB1K2R w KQkq -"
"King's Indian: orthodox (7...Na6)","r1b1qrk1/ppp2pbp/n2p2p1/4p1B1/2PPP1n1/2N2N2/PP2BPPP/R2Q1RK1 w - -"
"Two Knights defense, Keidanz variation","r1b1k2r/ppp2ppp/2N5/1B1pP3/4n2q/8/PPP2bPP/RNBQ1K1R w kq -"
"KGA: bishop's gambit, Fraser variation *","r1b2knr/pppp3p/2n2qP1/2b1p2Q/6P1/8/PPPP1PBP/RNB1K1NR w KQ -"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 defense, 9...Nxd4","r1bq1rk1/pp2bppp/3ppn2/6B1/3nPP2/2N5/PPPQ2PP/2KR1B1R w - -"
"QGD: Tarrasch, Reti variation","r1bq1rk1/pp3ppp/2n2n2/2bp4/N7/5NP1/PP2PPBP/R1BQ1RK1 b - -"
"Grunfeld: Russian, Byrne (Simagin) variation","r1bq1rk1/ppp1ppbp/2n2np1/8/2QPP3/2N2N2/PP3PPP/R1B1KB1R w KQ -"
"Four Knights: Gunsberg counter-attack *","r1bq1rk1/pppp1ppp/5n2/1B2P3/1b1p4/2N5/PPPP1PPP/R1BQ1RK1 b - -"
"Philidor: Hanham, Steiner variation","r1bqk1nr/pp1nbppp/2pp4/4P3/2B1P3/5N2/PPP2PPP/RNBQ1RK1 b kq -"
"Nimzo-Indian: 4.e3 O-O, 5.Bd3 *","r1bqk1nr/pp3ppp/2nbp3/1Bpp4/8/4PN2/PPPP1PPP/RNBQ1RK1 w kq -"
"Scotch game","r1bqk1nr/pppp1ppp/2n5/2b5/3NP3/8/PPP2PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: Moller defense","r1bqk2r/1ppp1ppp/p1n2n2/2b1p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 w kq -"
"Sicilian: Najdorf, Lipnitzky attack *","r1bqk2r/ppp2ppp/2n5/2bnp3/8/P2P1N2/1P2PPPP/RNBQKB1R w KQkq -"
"English: Nenarokov variation","r1bqk2r/pppp1pp1/5n1p/4n3/2PN3B/2P5/P3PPPP/R2QKB1R w KQkq -"
"Two Knights defense: Wilkes Barre (Traxler) variation","r1bqk2r/pppp1ppp/2n2n2/2b1p1N1/2B1P3/8/PPPP1PPP/RNBQK2R w KQkq -"
"QGD semi-Slav: Meran, Sozin variation","r1bqkb1r/5ppp/4pn2/1p2N3/3p4/3B4/PP3PPP/R1BQ1RK1 b kq -"
"Sicilian: modern Scheveningen","r1bqkb1r/pp3ppp/2nppn2/8/3NP3/2N5/PPP1BPPP/R1BQK2R w KQkq -"
"Ruy Lopez: Berlin defense, 4.O-O, d6","r1bqkb1r/ppp2ppp/2np1n2/1B2p3/4P3/5N2/PPPP1PPP/RNBQ1RK1 w kq -"
"Scotch: Schmidt variation","r1bqkb1r/pppp1ppp/2n2n2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq -"
"French: Winawer, advance, 5.a3 *","r1bqkbnr/1pp2ppp/p1n5/1B1p4/2PPp3/4P3/PP3PPP/RNBQK1NR w KQkq -"
"QGD: Tarrasch defense, Tarrasch gambit *","r1bqkbnr/pp2pppp/8/n2P4/1Pp5/8/P4PPP/RNBQKBNR b KQkq b3"
"King's Indian: Makagonov system (5.h3) *","r1bqkbnr/pp3pp1/2n4p/2ppp3/8/3P1NP1/PPP1PPBP/RNBQK2R w KQkq -"
"QGD: Chigorin defense, Janowski variation","r1bqkbnr/ppp1pppp/2n5/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq -"
"Rousseau gambit","r1bqkbnr/pppp2pp/2n5/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"King's Indian: Larsen variation *","r2qkb1r/pp3ppp/2n1bn2/2ppp3/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"French: Henneberger variation *","r2qkbnr/ppp2ppp/2n1b3/3pp3/3P4/4PN2/PPP2PPP/RNBQKB1R w KQkq -"
"French: Burn variation *","r2qkbnr/ppp2ppp/2n5/3pP3/6b1/4PN2/PPP2PPP/RNBQKB1R b KQkq -"
"QGD: Orthodox defense, Rubinstein variation *","r3kb1r/ppq2ppp/2n1pn2/2pp4/3P2b1/4PN2/PPPNBPPP/R1BQ1RK1 w kq -"
"QGD Slav: Dutch variation, main line","rn1q1rk1/pp3ppp/2p1pn2/5b2/PbBP4/2N1PN2/1P2QPPP/R1B2RK1 b - -"
"QGD Slav: Amsterdam variation","rn1qkb1r/pp1n1ppp/4p3/3pNb2/3P4/2N1P3/PP3PPP/R1BQKB1R w KQkq -"
"QGD *","rn1qkb1r/pp2pppp/5n2/2pp4/3P2b1/4PN2/PPP2PPP/RNBQKB1R w KQkq -"
"QGD: Grau (Sahovic) defense","rn1qkbnr/ppp1pppp/8/3p1b2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"Trompovsky attack (Ruth, Opocensky opening) *","rn1qkbnr/ppp1pppp/8/3p4/6b1/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"French: Fort Knox variation","rn1qkbnr/ppp2ppp/2b1p3/8/3PN3/5N2/PPP2PPP/R1BQKB1R w KQkq -"
"Scotch: Ghulam Kassim variation *","rnb1k2r/ppp2ppp/3b4/3qp3/8/3P4/PPP2PPP/R1BQKBNR w KQkq -"
"KGA: Herzfeld gambit *","rnbq1k1r/pppp2pp/8/2b1pPPQ/4n3/2N5/PPPP1P1P/R1B1KBNR b KQ -"
"Neo-Grunfeld, 6.O-O, main line *","rnbq1rk1/pp2ppbp/5np1/3p4/3P4/5NP1/PP2PPBP/RNBQ1RK1 b - -"
"Nimzo-Indian: 4.e3, main line with ...c5","rnbq1rk1/pp3ppp/4pn2/2pp4/1bPP4/2NBPN2/PP3PPP/R1BQK2R w KQ -"
"Petrov: Italian variation *","rnbqk2r/pppp1ppp/5n2/2b1p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Queen's Indian: Petrosian system *","rnbqkb1r/1p2pppp/p4n2/2pp4/8/1P2PN2/P1PP1PPP/RNBQKB1R w KQkq -"
"Caro-Kann: Panov-Botvinnik attack, 5...g6","rnbqkb1r/pp2pp1p/5np1/3p4/2PP4/2N5/PP3PPP/R1BQKBNR w KQkq -"
"Sicilian: Kan, Maroczy bind (Reti variation) *","rnbqkb1r/pp3ppp/8/2pnp3/8/P3P3/1P1P1PPP/RNBQKBNR w KQkq -"
"QGD semi-Slav: stonewall defense","rnbqkb1r/pp4pp/2p1p3/3p1p2/2PPn3/2NBPN2/PP3PPP/R1BQK2R w KQkq -"
"Alekhine's defense","rnbqkb1r/ppp1pppp/3p4/3nP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq -"
"Blackmar-Diemer: Lemberg counter-gambit","rnbqkb1r/ppp2ppp/5n2/3pp3/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq -"
"Scotch: Horwitz attack *","rnbqkb1r/ppp2ppp/8/4p2Q/1n6/2N5/PPPP1PPP/R1B1KBNR w KQkq -"
"KGA: Kieseritsky, Berlin defense, 6.Bc4","rnbqkb1r/pppp1p1p/5n2/4N3/2B1PppP/8/PPPP2P1/RNBQK2R b KQkq -"
"English opening","rnbqkb1r/pppp1ppp/4pn2/8/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -"
"King's Indian defense","rnbqkb1r/pppppp1p/5np1/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"Philidor: Paulsen attack","rnbqkbnr/ppp2ppp/8/3P4/3N4/8/PPP2PPP/RNBQKB1R b KQkq -"
"KGA: bishop's gambit","rnbqkbnr/pppp1ppp/8/8/2B1Pp2/8/PPPP2PP/RNBQK1NR b KQkq -"
"Modern defense","rnbqkbnr/pppppp1p/6p1/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq -"
"Mujannah opening","rnbqkbnr/ppp1pppp/8/3p4/2P2P2/8/PP1PP1PP/RNBQKBNR b KQkq c3"
"Reti: King's Indian attack, Neo-closed Sicilian","r1bqk2r/pp1pnpbp/2n1p1p1/2p5/4P3/3P1NP1/PPP2PBP/RNBQ1RK1 w kq -"
"Queen's pawn game","rnbqkb1r/pppppppp/5n2/8/2PP4/8/PP2PPPP/RNBQKBNR b KQkq c3"
"Dutch defence","rnbqkbnr/ppppp1pp/8/5p2/2PP4/8/PP2PPPP/RNBQKBNR b KQkq c3"
"Giuoco piano: Rosentreter variation","r1bqk2r/pppp1p2/5n1p/4p1p1/2BnPP1B/8/PPP3PP/RN1Q1RK1 b kq f3"
"King's Indian: Benoni formation","rnbqk2r/pp1pppb1/5npp/2pP4/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq -"
"King's Indian: Saemisch, Benoni formation","rnbq1rk1/1p2ppbp/p2p1np1/2pP2B1/2P1P3/2N2P2/PP4PP/R2QKBNR w KQ -"
"King's Indian (6.Be2)","rnbq1rk1/pp3pbp/3ppnp1/2pP4/2P1P3/2N2N2/PP2BPPP/R1BQK2R w KQ -"
"QGD: exchange, chameleon variation *","2kr3r/ppq1nppp/2nbp3/3p4/3P2b1/5N2/PPP1BPPP/R1BQRNK1 w - -"
"Evans gambit declined, Hirschbach variation","r1b1k1nr/pppp1ppp/1b6/nP2N1q1/2B1P3/8/P1PP1PPP/RNBQK2R w KQkq -"
"QGD semi-Slav: Meran, Stahlberg variation *","r1b1k2r/pp3ppp/3b1q2/3P4/1P2n3/4PN2/5PPP/R1BQKB1R w KQkq -"
"Ruy Lopez: closed, Chigorin, 12...Nc6","r1b2rk1/2q1bppp/p1np1n2/1pp1p3/3PP3/2P2N1P/PPBN1PP1/R1BQR1K1 w - -"
"QGD: Orthodox defense, classical, 13.de","r1b2rk1/pp3ppp/2p5/4q3/2B5/2R1P3/PP3PPP/3Q1RK1 w - -"
"Dutch: Ilyin-Genevsky variation with Qc2 *","r1b2rk1/ppq1ppbp/2n2np1/2pp4/5P2/3PPN2/PPP1B1PP/RNB1QRK1 w - -"
"Nimzo-Indian: 4.e3, main line with 8...Bxc3 *","r1bq1rk1/5ppp/p1pbpn2/2pp4/2PP4/2N1PN2/PP3PPP/R1BQ1RK1 w - -"
"Ruy Lopez: closed Berlin defense, Showalter variation *","r1bq1rk1/ppp2ppp/2n2n2/3pp3/4P3/2bP1N2/PPPBBPPP/R2QK2R w KQ -"
"King's Indian: orthodox, 7...Nbd7","r1bq1rk1/pppn1pbp/3p1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 w - -"
"Evans gambit: Cordel variation","r1bqk1nr/ppppbppp/8/n3p3/2BPP3/2P2N2/P4PPP/RNBQK2R w KQkq -"
"Ruy Lopez: Berlin defense, Kaufmann variation","r1bqk2r/pppp1ppp/2n2n2/1Bb1p3/4P3/3PBN2/PPP2PPP/RN1QK2R b KQkq -"
"Giuoco Piano: Four Knights variation *","r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"Vienna: Alekhine variation","r1bqk2r/ppppbppp/2nn4/4N2Q/8/1BN5/PPPP1PPP/R1B1K2R b KQkq -"
"QGD Slav accepted: Alapin variation *","r1bqkb1r/1p2pppp/2n2n2/p1Pp4/8/2P2N2/PP2PPPP/RNBQKB1R w KQkq -"
"Ruy Lopez: Morphy defense, Duras variation","r1bqkb1r/1pp2ppp/p1np1n2/4p3/B1P1P3/3P1N2/PP3PPP/RNBQK2R b KQkq -"
"Ruy Lopez: Berlin defense, Mortimer trap","r1bqkb1r/pp1pnppp/2p2n2/1B2N3/4P3/3P4/PPP2PPP/RNBQK2R w KQkq -"
"Sicilian: 2.c3, Heidenfeld variation","r1bqkb1r/pp1ppppp/2n5/2pnP3/8/N1P2N2/PP1P1PPP/R1BQKB1R b KQkq -"
"Four Knights: Gunsberg variation","r1bqkb1r/pppp1ppp/2n2n2/4p3/4P3/P1N2N2/1PPP1PPP/R1BQKB1R b KQkq -"
"Nimzo-Indian: Samisch, Keres variation *","r1bqkbnr/4p1pp/p1p2p2/8/2pN4/4P3/PP3PPP/RNBQK2R w KQkq -"
"English: Bremen, Smyslov system *","r1bqkbnr/pp1ppp1p/2n3p1/1Bp5/4P3/5N2/PPPP1PPP/RNBQK2R b KQkq -"
"Sicilian: Grand Prix attack","r1bqkbnr/pp1ppppp/2n5/2p5/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq -"
"QGD: Tarrasch defense *","r1bqkbnr/pp2pppp/2n5/2pp4/2PP4/4P3/PP3PPP/RNBQKBNR b KQkq -"
"QGD Slav: Winawer counter-gambit *","r1bqkbnr/pp2pppp/2n5/2pp4/3PP3/2P5/PP3PPP/RNBQKBNR b KQkq -"
"Nimzo-Indian: 4.e3 c5 *","r1bqkbnr/pp3ppp/2n1p3/1Bpp4/2P5/4PN2/PP1P1PPP/RNBQK2R b KQkq -"
"Nimzo-Indian: 4.e3, Taimanov variation *","r1bqkbnr/pp3ppp/2n1p3/1Bpp4/8/2N1PN2/PPPP1PPP/R1BQK2R b KQkq -"
"QGD: Tarrasch, Schlechter-Rubinstein system","r1bqkbnr/pp3ppp/2n5/2pp4/3P4/2N2NP1/PP2PP1P/R1BQKB1R b KQkq -"
"Robatsch (modern) defense *","r1bqkbnr/ppp2ppp/2n5/3pp3/8/3P2P1/PPP1PPBP/RNBQK1NR b KQkq -"
"Alekhine's defense: Scandinavian variation *","r1bqkbnr/pppp1ppp/2n5/4p3/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq -"
"Grunfeld: Spassky variation, main line, 10...cd, 11.cd *","r2q1rk1/p3nppp/4b3/2bpp3/8/2N3P1/PP2PPBP/R1BQ1RK1 w - -"
"Ruy Lopez: Kecskemet variation","r2qbrk1/1pp1bppp/p1np1n2/4p3/B2PP3/2P2N2/PP1N1PPP/R1BQR1K1 w - -"
"Sicilian: Pelikan, Chelyabinsk variation *","r2qkb1r/ppp2ppp/n1n5/4p3/1P2P1b1/P1NP1N2/5PPP/R1BQKB1R b KQkq -"
"QGD: Lasker defense, Bernstein variation *","r3kb1r/p4ppp/1qp1pn2/3p4/3P4/3Q3P/PPP2PP1/RNB2RK1 b kq -"
"QGD Slav: exchange, Trifunovic variation *","r3kb1r/pp3ppp/1qn1pn2/1B1p1b2/3P1B2/2N1PN2/PP3PPP/R2QK2R b KQkq -"
"French: MacCutcheon, Grigoriev variation *","r3kbnr/ppp2pp1/2n5/1B1p2qP/3P4/4P3/PPP2Pp1/RNBQK1R1 w Qkq -"
"Blumenfeld counter-gambit, Spielmann variation *","rn1qkb1r/pp2pppp/5n2/8/1PPp2b1/5N1P/P2P1PP1/RNBQKB1R b KQkq -"
"QGD: semi-Slav, Junge variation","rnb1k1nr/p4ppp/1qp1p3/1p6/PbpP4/2N1PN2/1P1B1PPP/R2QKB1R w KQkq -"
"QGD: Lasker defense, Teichmann variation","rnb2rk1/ppp1qpp1/4p2p/3p4/2PPn3/2N1PN2/PPQ2PPP/R3KB1R b KQ -"
"QGD: Neo-orthodox variation, 7.Bh4","rnbq1rk1/ppp1bpp1/4pn1p/3p4/2PP3B/2N1PN2/PP3PPP/R2QKB1R b KQ -"
"Grunfeld with Bf4 & e3","rnbq1rk1/ppp1ppbp/5np1/3p4/2PP1B2/2N1PN2/PP3PPP/R2QKB1R b KQ -"
"Ruy Lopez: open, 6.d4 *","rnbq1rk1/ppp2ppp/5n2/b2pN3/4P3/P1N5/1PPP1PPP/R1BQKB1R w KQ -"
"KGA: bishop's gambit, Anderssen variation *","rnbqk1nr/pppp2pp/8/4pP2/3b4/2P5/PP3PPP/RNBQKBNR b KQkq -"
"Ruy Lopez: modern Steinitz defense, Rubinstein variation *","rnbqk2r/pp3ppp/2p2n2/b2pp3/4P3/P1NP4/1PPBNPPP/R2QKB1R b KQkq -"
"Nimzo-Indian: Samisch, Romanovsky variation","rnbqk2r/pp4pp/4p3/2Pn1p2/8/P1P2P2/4P1PP/R1BQKBNR w KQkq -"
"King's Indian: accelerated Averbakh system","rnbqk2r/ppp1ppbp/3p1np1/6B1/2PPP3/2N5/PP3PPP/R2QKBNR b KQkq -"
"King's Indian: Makagonov system (5.h3)","rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/2N4P/PP3PP1/R1BQKBNR b KQkq -"
"Pirc: classical, h3 system","rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N1P/PPP2PP1/R1BQKB1R b KQkq -"
"KGD: Falkbeer, Morphy gambit","rnbqk2r/ppp2ppp/5n2/3P4/1b3P2/2NPp3/PPPB2PP/R2QKBNR w KQkq -"
"Ruy Lopez: fianchetto (Smyslov/Barnes) defense *","rnbqk2r/pppp1ppp/5n2/4p3/1b2P3/2N3P1/PPPP1P1P/R1BQKBNR b KQkq -"
"Two Knights defense *","rnbqk2r/pppp1ppp/8/8/Nb1pP1n1/5N2/PPP2PPP/R1BQKB1R w KQkq -"
"Queen's pawn: Torre attack, Wagner gambit","rnbqkb1r/pp1p1ppp/4pn2/2p3B1/3PP3/5N2/PPP2PPP/RN1QKB1R b KQkq -"
"English: Neo-Catalan *","rnbqkb1r/pp1ppp1p/5np1/2p5/3P4/4PN2/PPP2PPP/RNBQKB1R b KQkq -"
"English: Caro-Kann defensive system","rnbqkb1r/pp2pppp/2p2n2/3p4/2P5/1P3N2/PB1PPPPP/RN1QKB1R b KQkq -"
"Pirc defense","rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N5/PPP1BPPP/R1BQK1NR b KQkq -"
"Pirc: Austrian attack","rnbqkb1r/ppp1pp1p/3p1np1/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq -"
"Richter-Veresov attack","rnbqkb1r/ppp1pppp/5n2/3p2B1/3P4/2N5/PPP1PPPP/R2QKBNR b KQkq -"
"Torre attack (Tartakower variation)","rnbqkb1r/ppp1pppp/5n2/3p2B1/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq -"
"Queen's pawn game, Krause variation *","rnbqkb1r/ppp1pppp/5n2/3p4/2PP4/8/PP2PPPP/RNBQKBNR b KQkq -"
"Queen's pawn game *","rnbqkb1r/ppp1pppp/5n2/3p4/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq -"
"Catalan: closed","rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/6P1/PP2PPBP/RNBQK1NR b KQkq -"
"Sicilian: Cortlever (Alatortsev) variation *","rnbqkb1r/ppp2ppp/5n2/3pp3/2P5/3P1N2/PP2PPPP/RNBQKB1R b KQkq -"
"Sicilian: Labourdonnais-Lowenthal variation *","rnbqkb1r/ppp2ppp/8/3np3/4P3/2N5/PP1P1PPP/R1BQKBNR b KQkq -"
"King's Indian: fianchetto without c4","rnbqkb1r/pppppp1p/5np1/8/3P4/5NP1/PPP1PP1P/RNBQKB1R b KQkq -"
"English: Jaenisch gambit *","rnbqkbnr/pp1ppppp/8/2p5/1P6/8/P1PPPPPP/RNBQKBNR b KQkq -"
"Caro-Kann defense","rnbqkbnr/pp2pppp/2p5/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq -"
"QGD: Grau (Sahovic) defense *","rnbqkbnr/pp2pppp/8/2pp4/3P1B2/8/PPP1PPPP/RN1QKBNR b KQkq -"
"KGA: Kieseritsky, Brentano (Campbell) defense","rnbqkbnr/ppp2p1p/8/3pN3/4PppP/8/PPPP2P1/RNBQKB1R w KQkq -"
"KGA: Abbazia defense (classical defense, modern defense[!])","rnbqkbnr/ppp2ppp/8/3p4/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq -"
"Fried fox defense *","rnbqkbnr/ppp2ppp/8/3pp3/8/5P2/PPPPPKPP/RNBQ1BNR b kq -"
"Philidor: Philidor counter-gambit, del Rio attack","rnbqkbnr/ppp3pp/4P3/3p2N1/4p3/8/PPP2PPP/RNBQKB1R b KQkq -"
"KGA: Lolli gambit (wild Muzio gambit)","rnbqkbnr/pppp1B1p/8/8/4Ppp1/5N2/PPPP2PP/RNBQK2R b KQkq -"
"Alekhine's defense *","rnbqkbnr/pppp1ppp/8/4p3/8/5N2/PPPPPPPP/RNBQKB1R b KQkq -"
"Mieses opening","rnbqkbnr/pppppppp/8/8/8/3P4/PPP1PPPP/RNBQKBNR b KQkq -"
"English opening","rnbq1rk1/ppppppbp/5np1/8/2P5/1P3NP1/PB1PPP1P/RN1QKB1R b KQ -"
"English opening","rnbqk2r/ppp3bp/3p1np1/4pp2/2P5/2NP1NP1/PP2PPBP/R1BQ1RK1 b kq -"
"Canard opening","rnbqkb1r/pppppppp/5n2/8/3P1P2/8/PPP1P1PP/RNBQKBNR b KQkq f3"
"French: Winawer, advance (7.h4)","rnbqk2r/pp2nppp/4p3/2ppP3/3P3P/P1P5/2P2PP1/R1BQKBNR b KQkq h3"
"KGA: bishop's gambit, classical defence","rnb1kbnr/pppp1p1p/8/6p1/2B1Pp1q/8/PPPP2PP/RNBQ1KNR w kq g6"
"Latvian: Polerio variation","rnbqkbnr/ppp3pp/8/3pN3/2B1p3/8/PPPP1PPP/RNBQK2R w KQkq d6"
"Sicilian: Burger attack","rnbqkbnr/pp1ppppp/8/2p5/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq -"
"Ruy Lopez: Cordel gambit","r1bqk1nr/pppp2pp/2n5/1Bb1pp2/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq f6"
"QGD: Tarrasch defence (6.e3)","r1bqkb1r/pp3ppp/2n2n2/2pp4/3P4/2N1PN2/PP2BPPP/R1BQK2R b KQkq -"
"King's Indian: Saemisch, orthodox (7.Nge2 c6)","r1bq1rk1/pp1n1pbp/3p1np1/3Pp3/4P3/2N1BP2/PP1QN1PP/R3KB1R b KQ -"
"Scotch: Gottschall variation","1rb2rk1/pp3ppp/5q2/3P4/1n6/2P1Q3/PP3PPP/RN2KB1R w KQ -"
"English: closed, 5.Rb1 Taimanov variation *","1rbqk1nr/pp1pppbp/2n3p1/2p5/4P3/2N3PN/PPPP1PBP/R1BQK2R b KQk -"
"QGD: Orthodox defense, Rubinstein attack, Wolf variation *","2r1kb1r/ppq2ppp/2n1pn2/2ppN3/3P2b1/2P1P3/PP1NBPPP/R1BQ1RK1 b k -"
"Caro-Kann: Panov-Botvinnik, Czerniak variation","r1b1kb1r/pp2pppp/2n2n2/q2p2B1/2PP4/2N5/PP3PPP/R2QKBNR w KQkq -"
"Vienna gambit: Kaufmann variation *","r1b1kb1r/ppppq1pp/2n2n2/4N1B1/3Pp3/8/PPP2PPP/RN1QKB1R w KQkq -"
"Scotch: Rosenthal variation","r1bk2nr/pppp1ppp/2n3q1/1N6/8/8/PPPNBPPP/R2Q1RK1 w - -"
"Vienna: Steinitz gambit, Fraser-Minckwitz variation *","r1bq1bnr/ppp1k1pp/2n5/3ppP1Q/8/1PN5/P1PP1PPP/R1B1KBNR b KQ -"
"Ruy Lopez: closed, 9.h3","r1bq1rk1/2p1bppp/p1np1n2/1p2p3/4P3/1BP2N1P/PP1P1PP1/RNBQR1K1 b - -"
"Ruy Lopez: closed, Lutikov variation","r1bq1rk1/2p1bppp/p1np1n2/1p2p3/4P3/2P2N2/PPBP1PPP/RNBQR1K1 b - -"
"English: symmetrical, main line with b3","r1bq1rk1/pp1pppbp/2n2np1/2p5/2P5/1PN2NP1/P2PPPBP/R1BQ1RK1 b - -"
"King's Indian: fianchetto, Kavalek (Bronstein) variation *","r1bq1rk1/pp2ppbp/2n2np1/2pp4/Q7/2PP1NP1/PP2PPBP/RNB2RK1 b - -"
"Scotch gambit: Cochrane-Shumov defense","r1bq3r/ppp2k1p/2n3p1/2Qp4/3pP3/8/PPP2PPP/RNB1K2R w KQ -"
"Ruy Lopez: classical defense, Charousek variation","r1bqk1nr/pppp1ppp/1bn5/1B2p3/4P3/2P2N2/PP1P1PPP/RNBQK2R w KQkq -"
"QGD semi-Slav: 7.Bc4 *","r1bqk2r/pp3ppp/2n1pn2/2bp4/8/2P1PN2/PP1N1PPP/R1BQKB1R w KQkq -"
"QGD Slav: Dutch, Lasker variation *","r1bqkb1r/1p3ppp/2n1pn2/p1Pp4/5B2/N1P2N2/PP2PPPP/R2QKB1R b KQkq -"
"Ruy Lopez: Morphy defense","r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"Grunfeld: Makogonov variation *","r1bqkb1r/p4ppp/2n1pn2/1ppp4/3P4/5NP1/PPP1PPBP/RNBQ1RK1 w kq -"
"Sicilian: Boleslavsky variation","r1bqkb1r/pp3ppp/2np1n2/4p3/3NP3/2N5/PPP1BPPP/R1BQK2R w KQkq -"
"Alekhine's defense: four pawns attack, 6...Nc6","r1bqkb1r/ppp1pppp/1nn5/4P3/2PP4/8/PP4PP/RNBQKBNR w KQkq -"
"Two Knights defense: Fegatello attack","r1bqkb1r/ppp2Npp/2n5/3np3/2B5/8/PPPP1PPP/RNBQK2R b KQkq -"
"Two Knights defense","r1bqkb1r/pppp1ppp/2n2n2/8/2BpP3/5N2/PPP2PPP/RNBQ1RK1 b kq -"
"Ruy Lopez: fianchetto defense deferred","r1bqkbnr/1ppp1p1p/p1n3p1/4p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq -"
"King's Indian with e4 & g3 *","r1bqkbnr/pp3p1p/2n3p1/2ppp3/8/3P1NP1/PPP1PPBP/RNBQK2R w KQkq -"
"Dutch, Spielmann gambit *","r1bqkbnr/ppp1pp1p/2n5/3p2p1/5P2/5N2/PPPPP1PP/RNBQKB1R w KQkq -"
"QGD: Chigorin defense","r1bqkbnr/ppp1pppp/2n5/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"French: Winawer, advance variation *","r1bqkbnr/ppp2ppp/2n5/1B1p4/3Pp3/4P3/PPP2PPP/RNBQK1NR w KQkq -"
"Sicilian: Grand Prix attack *","r1bqkbnr/pppp2pp/2n5/4pp2/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq -"
"Evans gambit: compromised defense, Potter variation *","r1br2k1/p4ppp/1qn2n2/2b5/B3p3/2N3Q1/PPPPNPPP/R1B1K2R w KQ -"
"Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 defense, 11.Bxf6","r2qk2r/3bbppp/p1nppB2/1p6/4PP2/2N2N2/PPPQ2PP/2KR1B1R b kq -"
"French: advance, Euwe variation","r2qkbnr/pp1b1ppp/2n1p3/2ppP3/3P4/2P2N2/PP3PPP/RNBQKB1R w KQkq -"
"English, Troger defense","r2qkbnr/ppp2ppp/2npb3/4p3/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq -"
"QGD/QGD semi-Slav: Hastings variation *","r3kb1r/pp2pppp/1qn2n2/2pp4/3P4/2P1PQ1P/PP3PP1/RNB1KB1R w KQkq -"
"QGD: exchange, positional line, 6.Qc2 *","r3kbnr/ppq1pppp/2n5/3p4/3P2b1/2P2N2/PP3PPP/RNBQKB1R w KQkq -"
"English: Caro-Kann defensive system *","rn1qkb1r/pb1ppppp/1p3n2/2p5/3P4/2P2N2/PP2PPPP/RNBQKB1R w KQkq -"
"Scandinavian: Anderssen counter-attack, Collijn variation","rn2kbnr/ppp2ppp/8/q3p3/3P2b1/2N2N2/PPP2PPP/R1BQKB1R w KQkq -"
"Petrov: Cozio (Lasker) attack *","rnb1kb1r/ppppqppp/5n2/4N3/8/3P4/PPP2PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: open, Howell attack *","rnb2rk1/ppp1qppp/1b3n2/4N3/1P1Pp3/P1N1B3/2P2PPP/R2QKB1R w KQ -"
"Ruy Lopez: Berlin defense, Winawer attack *","rnb2rk1/ppp1qppp/8/3n4/4p3/2P5/PNPPBPPP/R1BQK2R w KQ -"
"QGD: Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd5","rnbq1rk1/p1p1bpp1/1p2p2p/3n4/3P3B/2N1PN2/PP3PPP/R2QKB1R w KQ -"
"Nimzo-Indian: classical, Adorjan gambit","rnbq1rk1/p1pp1ppp/4pn2/1p6/2PP4/P1Q5/1P2PPPP/R1B1KBNR w KQ -"
"Dutch: stonewall variation *","rnbq1rk1/pp2ppbp/5np1/2pp4/3P1P2/4PN2/PPP1B1PP/RNBQ1RK1 b - -"
"King's Indian: Four pawns attack, Florentine gambit","rnbq1rk1/pp3pbp/3p1np1/2ppP3/2P2P2/2N2N2/PP2B1PP/R1BQK2R b KQ -"
"Scotch gambit: Anderssen (Paulsen, Suhle) counter-attack *","rnbq1rk1/pp3ppp/2p2n2/2bPp1B1/2B5/2NP4/PPP2PPP/R2QK1NR b KQ -"
"Grunfeld: Grunfeld gambit","rnbq1rk1/ppp1ppbp/5np1/3p4/2PP1B2/2N1P3/PP3PPP/R2QKBNR w KQ -"
"Queen's pawn game, Rubinstein (Colle-Zukertort) variation *","rnbqk2r/p1p2ppp/1p1bpn2/3p4/2PP4/4PN2/PP3PPP/RNBQKB1R w KQkq -"
"Evans gambit declined, Lange variation *","rnbqk2r/p1pp1ppp/8/2b1p3/Np2n3/1B5N/PPPP1PPP/R1BQK2R b KQkq -"
"Evans gambit *","rnbqk2r/p2p1ppp/2p2n2/2b1p3/B3P3/2N5/PPPP1PPP/R1BQK1NR b KQkq -"
"Giuoco Piano *","rnbqk2r/pp1p1ppp/2p2n2/2b1p3/2B1P3/2N5/PPPP1PPP/R1BQK1NR w KQkq -"
"Dutch: Leningrad, main variation *","rnbqk2r/pp2ppbp/5np1/2pp4/5P2/5NP1/PPPPP1BP/RNBQK2R w KQkq -"
"Ruy Lopez: modern Steinitz defense, Richter variation *","rnbqk2r/ppp2ppp/5n2/3pp3/4P3/P1PP4/2P2PPP/R1BQKBNR w KQkq -"
"KGA: bishop's gambit, Paulsen attack","rnbqk2r/pppp1ppp/5n2/4P3/1bB2p2/2N5/PPPP2PP/R1BQK1NR b KQkq -"
"Ruy Lopez (Spanish opening) *","rnbqk2r/pppp1ppp/5n2/4p3/1b2P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"Ruy Lopez *","rnbqk2r/pppp1ppp/5n2/b3p3/4P3/P1N5/1PPP1PPP/R1BQKBNR w KQkq -"
"Sicilian: wing gambit deferred *","rnbqkb1r/p1pp1ppp/5n2/1p2p3/2P5/3P4/PP2PPPP/RNBQKBNR w KQkq -"
"English: Caro-Kann defensive system *","rnbqkb1r/p2ppppp/1p3n2/2p5/3P4/2P5/PP2PPPP/RNBQKBNR w KQkq -"
"QGD semi-Slav: Ekstrom variation","rnbqkb1r/p4p2/2p1pP1p/1p2N3/2pP3p/2N5/PP3PPP/R2QKB1R b KQkq -"
"QGA: 4...e6 *","rnbqkb1r/pp3ppp/4pn2/2Pp4/8/4PN2/PPP2PPP/RNBQKB1R b KQkq -"
"QGD: Semi-Tarrasch","rnbqkb1r/pp3ppp/4pn2/2pP2B1/3P4/2N5/PP2PPPP/R2QKBNR b KQkq -"
"Neo-Grunfeld defense","rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/5P2/PP2P1PP/RNBQKBNR w KQkq -"
"Konstantinopolsky opening *","rnbqkb1r/pppp1p1p/5np1/4p3/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"Dutch: Staunton gambit, Staunton's line","rnbqkb1r/ppppp1pp/5n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR b KQkq -"
"Sicilian: O'Kelly variation","rnbqkbnr/1p1ppppp/p7/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq -"
"Lengfellner system","rnbqkbnr/ppp2ppp/3pp3/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -"
"KGD: Falkbeer counter-gambit","rnbqkbnr/ppp2ppp/8/3Pp3/5P2/8/PPPP2PP/RNBQKBNR b KQkq -"
"Dunst (Sleipner,Heinrichsen) opening","rnbqkbnr/pppp1ppp/8/4p3/8/2N5/PPPPPPPP/R1BQKBNR w KQkq -"
"English, Nimzovich, Flohr variation","rnbqkbnr/pppp1ppp/8/8/2P1p3/5N2/PP1PPPPP/RNBQKB1R w KQkq -"
"Ruy Lopez: closed, Smyslov defense *","rnbqr1k1/pp1p1pp1/1bp2n1p/4p3/1P2P3/P1NP1N1P/2P1BPP1/R1BQ1RK1 b - -"
"Ruy Lopez: closed, Ragozin-Petrosian (`Keres') variation *","rnbqr1k1/pp1p1pp1/1bp2n1p/4p3/1P2P3/P1NP4/2PNBPPP/R1BQ1RK1 b - -"
"Ruy Lopez: closed (with ...d6) *","rnbqr1k1/pp1p1ppp/1bp2n2/4p3/1P2P3/P1NP1N2/2P1BPPP/R1BQ1RK1 b - -"
"Ruy Lopez: closed, Bogolyubov variation *","rnbqr1k1/pp3ppp/1bp2n2/3pp1B1/1P2P3/P1NP1N2/2P1BPPP/R2Q1RK1 b - -"
"Bird: From gambit: Lipke variation","rnbqk2r/ppp2ppp/3b3n/8/3P4/5N2/PPP1P1PP/RNBQKB1R b KQkq d3"
"English: Anglo-Gruenfeld defence, Korchnoi variation","rnbqk2r/ppp2pbp/6p1/3np3/8/2N2NP1/PP1PPPBP/R1BQK2R w KQkq e6"
"English: closed, Old Indian formation","rnbqkbnr/pp4pp/2pp4/5pN1/2PPp3/2N5/PP2PPPP/R1BQKB1R w KQkq -"
"Scandinavian defence, Gruenfeld variation","rn2kb1r/pp2pppp/2p2n2/q3Nb2/3P2P1/2N5/PPP2P1P/R1BQKB1R b KQkq g3"
"Pirc-Robatsch (4.Be3 c6)","rnbqk1nr/pp2ppbp/2pp2p1/8/3PP3/2N1B3/PPP2PPP/R2QKBNR w KQkq -"
"Sicilian: Kan, Maroczy bind (Reti variation)","rnbqkbnr/1p1p1ppp/p3p3/8/2PNP3/8/PP3PPP/RNBQKB1R b KQkq c3"
"Sicilian: dragon, Yugoslav attack (12.h4)","r1r3k1/pp1bppbp/2np1np1/q7/3NP2P/1BN1BP2/PPPQ2P1/2KR3R b - h3"
"Ruy Lopez: open (6.d4)","r1bqkb1r/1ppp1ppp/p1n5/4p3/B2Pn3/5N2/PPP2PPP/RNBQ1RK1 b kq d3"
"Blackmar gambit","rnbqkbnr/ppp1pppp/8/3p4/3PP3/8/PPP2PPP/RNBQKBNR b KQkq e3"
"QGD: Rochlin variation *","2rqkb1r/pp1bpppp/2n2n2/2pp4/Q2P4/2P1PN2/PP1N1PPP/R1B1KB1R w KQk -"
"QGD: Orthodox defense, 7.Rc1 *","2rqkb1r/pp3ppp/2n1pn2/2pp4/3P2b1/4PN2/PPPNBPPP/R1BQ1RK1 w k -"
"Grunfeld: Russian, Levenfish variation *","r1b1kb1r/pp3ppp/2n2n2/2qpp3/8/1P3NP1/P1P1PPBP/RNBQ1RK1 b kq -"
"Catalan: closed, main line *","r1b2rk1/ppqnppbp/5np1/2pp4/3P4/2P1PN2/PP1NBPPP/R1BQ1RK1 w - -"
"Nimzo-Indian: 4.e3, main line *","r1bq1rk1/5ppp/p1p1pn2/2bp4/2P5/2N1PN2/PP3PPP/R1BQ1RK1 w - -"
"Dutch: Ilyin-Genevsky variation with b3 *","r1bq1rk1/p3ppbp/1pn2np1/2pp4/5P2/3PPN2/PPP1B1PP/RNB1QRK1 w - -"
"Evans gambit: Morphy attack *","r1bq1rk1/p4ppp/2n2n2/2bpp3/8/1BNP4/PPP2PPP/R1BQK1NR w KQ -"
"Queen's Indian: old main line, 7.Nc3 *","r1bq1rk1/pp2ppbp/2n2np1/2pp4/8/1P2PN2/PBPPBPPP/RN1Q1RK1 w - -"
"Ruy Lopez: open, Dilworth variation *","r1bq1rk1/ppbn1Npp/2p2n2/8/1PBPp3/P1N1B3/2P2PPP/R2Q1RK1 b - -"
"Dutch: Leningrad, main variation with Nc6","r1bq1rk1/ppp1p1bp/2np1np1/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"English: ultra-symmetrical variation *","r1bqk1nr/pp1pppbp/2n3p1/2p5/2P5/2N3P1/PP1PPPBP/R1BQK1NR b KQkq -"
"Evans gambit: Waller attack","r1bqk1nr/ppp2ppp/2np4/b7/2BpP3/1QP2N2/P4PPP/RNB2RK1 b kq -"
"Giuoco Piano","r1bqk1nr/pppp1ppp/2n5/2b1p3/2B1P3/2P2N2/PP1P1PPP/RNBQK2R b KQkq -"
"QGD Slav: Semmering variation *","r1bqk2r/pp1n1ppp/3bpn2/2pp4/2PP4/4PN2/PP1N1PPP/R1BQKB1R b KQkq -"
"English: symmetrical, Botvinnik system reversed *","r1bqk2r/pp1pppbp/2n2np1/2p5/2P1P3/2N3P1/PP1P1PBP/R1BQK1NR b KQkq -"
"Benoni: four pawns attack, main line *","r1bqk2r/pp2b1pp/2n2n2/4pp2/2Pp4/3P1NP1/PP3PBP/RNBQR1K1 b kq -"
"King's Indian: Petrosian system, Stein variation *","r1bqk2r/pp2bppp/2n2n2/2p1p3/P2pP3/3P1NP1/1PP2PBP/RNBQ1RK1 b kq -"
"Benoni: classical without 9.O-O *","r1bqk2r/pp2bppp/2n2n2/4p3/2Pp4/3P1NP1/PP3PBP/RNBQ1RK1 b kq -"
"Nimzo-Indian: 4.e3, main line with ...b6 *","r1bqk2r/pp3ppp/2nbpn2/1Bpp4/3P4/1P2PN2/P1P2PPP/RNBQ1RK1 b kq -"
"Boden-Kieseritsky gambit *","r1bqk2r/pppp1ppp/2n2n2/2b1N3/4P3/8/PPPP1PPP/RNBQKB1R w KQkq -"
"Ruy Lopez: Cozio defense, Paulsen variation *","r1bqk2r/pppp1ppp/2n2n2/4p3/1b2P3/2N3P1/PPPPNP1P/R1BQKB1R b KQkq -"
"Four Knights: Rubinstein counter-gambit, exchange variation *","r1bqk2r/pppp1ppp/2n5/3np3/1b2P3/5N2/PPPP1PPP/R1BQKB1R w KQkq -"
"QGD semi-Slav: Meran, Blumenfeld variation","r1bqkb1r/3n1ppp/p3pn2/1N2P3/3p4/3B1N2/PP3PPP/R1BQK2R b KQkq -"
"Scotch: Mieses variation","r1bqkb1r/p1pp1ppp/2p2n2/4P3/8/8/PPP2PPP/RNBQKB1R b KQkq -"
"QGD semi-Slav: Rubinstein (anti-Meran) system","r1bqkb1r/pp1n1ppp/2p1pn2/3pN3/2PP4/2N1P3/PP3PPP/R1BQKB1R b KQkq -"
"Two Knights defense (Modern bishop's opening)","r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/3P1N2/PPP2PPP/RNBQK2R b KQkq -"
"Four Knights: Schultze-Muller gambit *","r1bqkb1r/pppp1ppp/2n5/4p3/4n3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq -"
"Vienna gambit *","r1bqkb1r/pppp2pp/2n2n2/4pP2/8/2N5/PPPP1PPP/R1BQKBNR w KQkq -"
"QGD Slav defense, Alekhine variation *","r1bqkbnr/pp3ppp/2n5/2Ppp3/8/2P5/PP2PPPP/RNBQKBNR w KQkq -"
"Queen's pawn: Anti-Veresov *","r1bqkbnr/ppp1pppp/2n5/3p2B1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq -"
"Pirc: Ufimtsev-Pytel variation *","r1bqkbnr/ppp2ppp/2n5/3pp3/8/2PP1N2/PP2PPPP/RNBQKB1R b KQkq -"
"Sicilian: closed, Korchnoi variation *","r1bqkbnr/pppp1p1p/2n3p1/4p3/2PP4/4P3/PP3PPP/RNBQKBNR b KQkq -"
"Center game: Hall variation","r1bqkbnr/pppp1ppp/2n5/8/2Q1P3/8/PPP2PPP/RNB1KBNR b KQkq -"
"Scotch: Sea-cadet mate","r2q1bnr/ppp1kBpp/3p4/3NN3/4P3/8/PP3PPP/R1Bb1RK1 b - -"
"Grunfeld: Spassky variation, main line, 13.Bd3","r2q1rk1/pp2ppbp/4b1p1/n7/3PP3/3BBP2/P3N1PP/R2Q1RK1 w - -"
"Ruy Lopez: closed Berlin defense, Bernstein variation","r2qk2r/pppbbppp/2np1n2/1B2p1B1/3PP3/2N2N2/PPP2PPP/R2Q1RK1 b kq -"
"Ruy Lopez: open, Howell attack","r2qkb1r/2p2ppp/p1n1b3/1p1pP3/4n3/1B3N2/PPP1QPPP/RNB2RK1 b kq -"
"QGD: Tartakower (Makagonov-Bondarevsky) system, 8.cd Nxd5 *","r2qkb1r/pp3ppp/2n1pn2/3p3b/3N4/1P2P2P/P1P1BPP1/RNBQ1RK1 b kq -"
"QGD: Cambridge Springs defense, Yugoslav variation *","r2qkb1r/pp3ppp/2n1pn2/3p4/Q2N2b1/2P1P3/PP1N1PPP/R1B1KB1R b KQkq -"
"Grunfeld: Lundin variation *","r3kbnr/pp1qpppp/8/2ppP3/2P3b1/6P1/PP2PP1P/RNBQKB1R b KQkq -"
"French: MacCutcheon, Bogolyubov variation *","r3kbnr/pppq1ppp/2n5/1B1p4/Q7/4PP2/PPP2P1P/RNB1K2R b KQkq -"
"Grunfeld: Smyslov defense","rn1q1rk1/pp2ppbp/2p2np1/3p4/2PP2b1/2NBPN2/PP3PPP/R1BQ1RK1 w - -"
"QGD Slav: Steiner variation","rn1qkb1r/pp2pppp/2p2n2/8/P1pP2b1/2N2N2/1P2PPPP/R1BQKB1R w KQkq -"
"Caro-Kann: classical, Flohr variation","rn1qkbnr/pp2pppp/2p3b1/8/3P4/6NN/PPP2PPP/R1BQKB1R b KQkq -"
"Budapest: Rubinstein variation *","rn1qkbnr/pp2pppp/8/2p2bN1/4p3/8/PPPP1PPP/RNBQKB1R w KQkq -"
"Amar gambit","rn1qkbnr/ppp2ppp/8/3p4/5p2/6PB/PPPPP2P/RNBQK2R w KQkq -"
"Scotch: Gottschall variation *","rn2kb1r/pp3ppp/2p1q3/1N6/3p4/5Q2/PP3PPP/1RB2RK1 b kq -"
"KGA: Carrera (Basman) gambit *","rnb1kbnr/ppppq1pp/8/4pP2/8/8/PPPP1PPP/RNBQKBNR w KQkq -"
"Ruy Lopez: Berlin defense, Cordel variation *","rnb2rk1/ppp1qppp/5n2/8/4pN2/2P5/P1PPBPPP/R1BQK2R b KQ -"
"KGA: Allgaier, Urusov attack","rnbq1bnr/ppp3k1/7p/3B4/3PPppP/8/PPP3P1/RNBQK2R b KQ -"
"Neo-Grunfeld, 6.O-O, main line","rnbq1rk1/pp2ppbp/5np1/3p4/3P4/5NP1/PP2PPBP/RNBQ1RK1 w - -"
"King's Indian: orthodox, Donner variation","rnbq1rk1/pp3pbp/2pp1np1/4p3/2PPP3/2N2N2/PP2BPPP/R1BQ1RK1 w - -"
"King's Indian: Samisch, orthodox main line","rnbq1rk1/pp3pbp/3p1np1/3pp3/2P1P3/2N1BP2/PP2N1PP/R2QKB1R w KQ -"
"Ruy Lopez: open, Berlin variation *","rnbq1rk1/pp3ppp/1bp2n2/8/1PNPp3/P1N1B3/2P2PPP/R2QKB1R b KQ -"
"Petrov: modern attack, Trifunovic variation *","rnbq1rk1/pp3ppp/3b4/2ppN3/3PB3/8/PPP2PPP/RNBQ1RK1 b - -"
"Neo-Grunfeld, 6.cd Nxd5, 7.O-O Nb6","rnbq1rk1/ppp1ppbp/1n4p1/8/3P4/5NP1/PP2PPBP/RNBQ1RK1 w - -"
"King's Indian: Four pawns attack, 6.Be2","rnbq1rk1/ppp1ppbp/3p1np1/8/2PPPP2/2N5/PP2B1PP/R1BQK1NR b KQ -"
"Giuoco Piano *","rnbqk2r/pp1p1ppp/2p2n2/2b1p3/2B1P3/2N2N2/PPPP1PPP/R1BQK2R b KQkq -"
"French: MacCutcheon, Dr. Olland (Dutch) variation","rnbqk2r/ppp2pp1/4pn1p/3pP3/1b1P4/2N5/PPP2PPP/R1BQKBNR b KQkq -"
"Nimzo-Indian: 4.e3","rnbqk2r/pppp1ppp/4pn2/8/1bPP4/2N1P3/PP3PPP/R1BQKBNR b KQkq -"
"Ruy Lopez: Lucena defense *","rnbqk2r/pppp1ppp/5n2/4p3/1b2P3/2N5/PPPPBPPP/R1BQK1NR b KQkq -"
"KGA: Kieseritsky, Berlin defense, 6.Bc4 *","rnbqk2r/pppp2p1/8/2b1pPPp/4n3/5N2/PPPP1P1P/RNBQKB1R w KQkq -"
"Queen's Indian: Petrosian system","rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/P4N2/1P2PPPP/RNBQKB1R b KQkq -"
"English: Kurajica defense *","rnbqkb1r/pp1ppp1p/5np1/2p5/3P4/2P1P3/PP3PPP/RNBQKBNR b KQkq -"
"Pirc: Holmov system","rnbqkb1r/ppp1pp1p/3p1np1/8/2BPP3/2N5/PPP2PPP/R1BQK1NR b KQkq -"
"Scandinavian: Icelandic gambit","rnbqkb1r/ppp2ppp/4pn2/3P4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq -"
"Sicilian defense *","rnbqkb1r/pppp1ppp/5n2/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq -"
"Reti: King's Indian attack *","rnbqkb1r/pppppp1p/5np1/8/8/5NP1/PPPPPP1P/RNBQKB1R b KQkq -"
"English opening","rnbqkb1r/pppppppp/5n2/8/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq -"
"Canard opening","rnbqkb1r/pppppppp/5n2/8/3P1P2/8/PPP1P1PP/RNBQKBNR b KQkq -"
"Alekhine's defense","rnbqkb1r/pppppppp/8/3nP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq -"
"English opening *","rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPP1PPP/RNBQKBNR b KQkq -"
"Dutch: Leningrad variation *","rnbqkbnr/pp2pp1p/6p1/2pp4/5P2/5NP1/PPPPP2P/RNBQKB1R b KQkq -"
"Grob: spike attack","rnbqkbnr/pp2pppp/2p5/3p2P1/8/8/PPPPPPBP/RNBQK1NR b KQkq -"
"Benko gambit *","rnbqkbnr/pp2pppp/8/2p5/1PPp4/5N2/P2PPPPP/RNBQKB1R b KQkq -"
"Queen's pawn: Keres defense *","rnbqkbnr/pp2pppp/8/2pp4/8/1P2P3/P1PP1PPP/RNBQKBNR b KQkq -"
"Guatemala defense *","rnbqkbnr/ppp2ppp/8/3pp3/8/BP6/P1PPPPPP/RN1QKBNR b KQkq -"
"KP: King's head opening","rnbqkbnr/pppp1ppp/8/4p3/4P3/5P2/PPPP2PP/RNBQKBNR b KQkq -"
"Dunst (Sleipner, Heinrichsen) opening","rnbqkbnr/pppppppp/8/8/8/2N5/PPPPPPPP/R1BQKBNR b KQkq -"
"Benko's opening","rnbqkbnr/pppppppp/8/8/8/6P1/PPPPPP1P/RNBQKBNR b KQkq -"
"English: Caro-Kann defensive system","rnbq1rk1/pp2ppbp/2p2np1/3p4/2P5/1P3NP1/PB1PPPBP/RN1QK2R w KQ d6"
"English: symmetrical, Benoni formation","rnbqkb1r/pp1ppppp/5n2/8/2PN4/8/PP2PPPP/RNBQKB1R b KQkq -"
"Vienna gambit","r1bqkbnr/pppp1ppp/2n5/4p3/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq f3"
"Pirc-Robatsch (4.Be3 a6)","rnbqk1nr/2p1ppbp/p2p2p1/1p6/3PP3/2N1B3/PPPQ1PPP/R3KBNR w KQkq b6"
"KGA: Kieseritsky, Berlin defence, Riviere variation","rnbqkb1r/ppp2p1p/5n2/3p4/4PpNP/8/PPPP2P1/RNBQKB1R w KQkq d6"
"Pirc-Robatsch","rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2N1B3/PPP2PPP/R2QKBNR b KQkq -"
"Petrov: classical attack","rnbqkb1r/ppp2ppp/3p4/8/3Pn3/5N2/PPP2PPP/RNBQKB1R b KQkq d3"
"Evans gambit declined","r1bqk1nr/pppp1ppp/2n5/2b1p3/1PB1P3/5N2/P1PP1PPP/RNBQK2R b KQkq b3"
"Sicilian (3.g3)","rnbqkbnr/pp2pppp/3p4/2p5/4P3/5NP1/PPPP1P1P/RNBQKB1R b KQkq -"
"Sicilian: Canal-Sokolsky attack, Bronstein gambit","r3kb1r/pp1qpppp/2np1n2/2p5/3PP3/2P2N2/PP3PPP/RNBQ1RK1 b kq d3"
"Giuoco Piano","r1bqk2r/pppp1ppp/2n2n2/2b1p3/2BPP3/2P2N2/PP3PPP/RNBQK2R b KQkq d3"
"French: Pelikan variation","rnbqkbnr/ppp2ppp/4p3/3p4/4PP2/2N5/PPPP2PP/R1BQKBNR b KQkq f3"
"King's Indian: fianchetto, Yugoslav system","rnbq1rk1/pp2ppbp/5np1/2p5/2P5/5NP1/PP2PPBP/RNBQ1RK1 w - -"
"QGD: Orthodox defense, Bd3 line, Capablanca freeing maneuver *","2rqk2r/pp3ppp/2n1pn2/2bp4/3N2b1/2P1P3/PP1NBPPP/R1BQ1RK1 b k -"
"KGD: Falkbeer, Charousek variation *","r1b1kbnr/pppnq2p/8/4Npp1/3Q1P2/8/PPP3PP/RNB1KB1R w KQkq -"
"Scotch: Pulling counter-attack","r1b1kbnr/pppp1ppp/2n5/8/3NP2q/8/PPP2PPP/RNBQKB1R w KQkq -"
"Giuoco Piano: Therkatz-Herzog variation","r1bq1rk1/ppp1nppN/3p4/3P4/2B1R3/8/PP3PPP/R2Q2K1 b - -"
"Benoni: Taimanov variation *","r1bqk1nr/pp4pp/2n5/4pp2/1bPp4/3P1NP1/PP3PBP/RNBQK2R w KQkq -"
"Pirc: bayonet (Mariotti) attack *","r1bqk1nr/ppp1bpp1/2n5/3pp2p/8/3P1NP1/PPP1PPBP/RNBQK2R w KQkq -"
"French: Swiss variation *","r1bqk1nr/ppp2ppp/2nb4/3pp3/3P4/4PN2/PPP2PPP/RNBQKB1R w KQkq -"
"Pirc: Austrian attack, Ljubojevic variation *","r1bqk1nr/ppp3pp/2n5/2bppp2/8/3P1NP1/PPP1PPBP/RNBQK2R w KQkq -"
"King's Indian: Petrosian system *","r1bqk2r/pp2bppp/2n2n2/2p1p3/3pP3/3P1NP1/PPP2PBP/RNBQ1RK1 w kq -"
"Ruy Lopez: exchange, Romanovsky variation *","r1bqk2r/ppp2ppp/2np1n2/4p3/4P3/P1P2P2/1PP3PP/R1BQKBNR w KQkq -"
"KGA: Kieseritsky, long whip defense, Jaenisch variation *","r1bqk2r/ppp3p1/2n5/2bppPPp/4n2P/7B/PPPP1P1R/RNBQK1N1 w Qkq -"
"Four Knights: Scotch, Krause variation","r1bqk2r/pppp1ppp/2n2n2/4N3/1b1PP3/2N5/PPP2PPP/R1BQKB1R b KQkq -"
"QGD semi-Slav: Meran, Stahlberg variation","r1bqkb1r/5ppp/4pn2/1p2N3/3p4/3B1Q2/PP3PPP/R1B1K2R b KQkq -"
"QGD semi-Slav: neo-Meran (Lundin variation)","r1bqkb1r/p2n1ppp/2p1pn2/8/1p1P4/2NBPN2/PP3PPP/R1BQK2R w KQkq -"
"English: Anglo-Grunfeld defense *","r1bqkb1r/pp1ppppp/2n2n2/8/3N4/8/PPP1PPPP/RNBQKB1R w KQkq -"
"Sicilian","r1bqkb1r/pp2pppp/2np1n2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq -"
"Sicilian: Richter-Rauzer, Richter attack","r1bqkb1r/pp3ppp/2Nppn2/6B1/4P3/2N5/PPP2PPP/R2QKB1R b KQkq -"
"QGD Slav: exchange variation *","r1bqkb1r/pp3ppp/2n1pn2/3p4/3P1B2/5N2/PP2PPPP/RN1QKB1R w KQkq -"
"Sicilian: Scheveningen, Keres attack *","r1bqkb1r/ppp2p1p/2n5/3np1p1/8/3PPN2/PP3PPP/RNBQKB1R w KQkq -"
"Nimzo-Indian: Samisch variation *","r1bqkbnr/4pppp/p1p5/2pp4/8/4PN2/PPPP1PPP/RNBQK2R w KQkq -"
"Nimzo-Indian: Samisch variation *","r1bqkbnr/5ppp/p1p1p3/2pp4/8/4PN2/PPPP1PPP/RNBQ1RK1 w kq -"
"Petrov: classical attack, Maroczy variation","r2qk2r/ppp3pp/2n5/3p1p2/2PPn1bb/3B1N2/PP3PPP/RNBQR1K1 w kq -"
"QGD: classical variation (5.Bf4) *","r2qkb1r/pp2pppp/2n2n2/2pp1b2/3P4/4PN2/PPP1BPPP/RNBQK2R w KQkq -"
"King's Indian: Samisch, orthodox, 7.d5 *","r2qkbnr/pp4pp/2n1bp2/2p1p3/3pP3/3P1NP1/PPP2PBP/RNBQ1RK1 w kq -"
"English: New York (London) defensive system","rn1qkb1r/pp2pppp/2p2n2/3p1b2/2P5/1P3N2/PB1PPPPP/RN1QKB1R w KQkq -"
"Pterodactyl defense","rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N2N2/PP3PPP/R1BQKB1R w KQkq -"
"KGD: Norwalde variation","rnb1kbnr/pppp1ppp/5q2/4p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq -"
"Giuoco Piano: Cracow variation *","rnbq1k1r/pp3ppp/5n2/1Bbpp3/8/2N2N2/PPPP1PPP/R1BQK2R w KQ -"
"KGA: Cochrane gambit *","rnbq1k1r/pppp2pp/5P2/2b1p1PQ/4n3/8/PPPP1P1P/RNB1KBNR b KQ -"
"Grunfeld: exchange, Simagin's lesser variation","rnbq1rk1/p1p1ppbp/1p4p1/8/2BPP3/2P5/P3NPPP/R1BQK2R w KQ -"
"Grunfeld: Botvinnik variation","rnbq1rk1/ppp2pbp/4pnp1/3p4/2PP4/1QN1PN2/PP3PPP/R1B1KB1R w KQ -"
"KGA: bishop's gambit, Lopez-Gianutio counter-gambit *","rnbqk1nr/pppp2pp/8/2b1pP2/5P2/8/PPPP2PP/RNBQKBNR b KQkq -"
"Sicilian: Najdorf, 7...Be7","rnbqk2r/1p2bppp/p2ppn2/6B1/3NPP2/2N5/PPP3PP/R2QKB1R w KQkq -"
"Neo-Grunfeld, 5.cd, main line *","rnbqk2r/pp2npbp/6p1/3pp3/8/1N4P1/PPP1PPBP/RNBQK2R w KQkq -"
"Nimzo-Indian: Samisch variation","rnbqk2r/pp3ppp/4pn2/2pP4/3P4/P1P2P2/4P1PP/R1BQKBNR b KQkq -"
"Dzindzikhashvili defense","rnbqkb1r/1ppp1ppp/p3pn2/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq -"
"Queen's Indian defense","rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq -"
"English: symmetrical, Three Knights system","rnbqkb1r/pp2pppp/8/2pn4/8/2N2N2/PP1PPPPP/R1BQKB1R w KQkq -"
"QGD: exchange, positional line, 5...c6","rnbqkb1r/pp3ppp/2p2n2/3p2B1/3P4/2N5/PP2PPPP/R2QKBNR w KQkq -"
"Grunfeld defense","rnbqkb1r/ppp1pp1p/5np1/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq -"
"Petrov: classical attack, close variation","rnbqkb1r/ppp2ppp/3p1n2/8/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"Petrov: Damiano variation","rnbqkb1r/pppp1ppp/8/4N3/4n3/8/PPPP1PPP/RNBQKB1R w KQkq -"
"Dutch defense","rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"Sicilian: wing gambit, Carlsbad variation","rnbqkbnr/pp1ppppp/8/8/4P3/p7/2PP1PPP/RNBQKBNR w KQkq -"
"Caro-Kann: anti-anti-Caro-Kann defense","rnbqkbnr/pp2pppp/2p5/3p4/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq -"
"Queen's pawn game, Krause variation","rnbqkbnr/pp2pppp/8/2pp4/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq -"
"English: Kurajica defense","rnbqkbnr/pp3ppp/2p1p3/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq -"
"Sicilian: Marshall variation","rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq -"
"(Dutch:) Balogh defense","rnbqkbnr/ppp1p1pp/3p4/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -"
"French defense","rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq -"
"Alekhine's defense *","rnbqkbnr/ppp2ppp/8/3p4/3Np3/8/PPPPPPPP/RNBQKB1R w KQkq -"
"Dutch defense","rnbqkbnr/pppp2pp/4p3/5p2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq -"
"King's gambit accepted *","rnbqkbnr/pppp2pp/8/4pP2/8/8/PPPP1PPP/RNBQKBNR b KQkq -"
"Reti: Herrstrom gambit","rnbqkbnr/pppppp1p/8/6p1/8/5N2/PPPPPPPP/RNBQKB1R w KQkq -"
"Grob's attack *","rnbqkbnr/pppppp1p/8/6p1/8/8/PPPPPPPP/RNBQKBNR w KQkq -"
"Ruy Lopez: closed, 7...d6, 8.d4 *","rnbqr1k1/ppp2ppp/1b3n2/3pp3/1P2P3/P1NP1N2/2P1BPPP/R1BQK2R w KQ -"
"Ruy Lopez: open, Howell attack, Ekstrom variation *","rnbr2k1/pp2qppp/5n2/2b1N3/3Pp3/P1N1B3/2PQBPPP/R4RK1 b - -"
"English opening","rnbqkbnr/pppppppp/8/8/2P5/8/PP1PPPPP/RNBQKBNR b KQkq c3"
"Queen's Indian: Marienbad system","rn1qkb1r/pb1ppppp/1p3n2/2p5/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq c6"
"Vienna: Adams gambit","r1bqkb1r/pppp1ppp/2nn4/4p2Q/3P4/1BN5/PPP2PPP/R1B1K1NR b KQkq d3"
"Scandinavian: Anderssen counter-attack","rnb1kbnr/ppp2ppp/8/q3p3/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq e6"
"Alekhine's defence: modern, Keres variation","rnbqk2r/ppp1ppbp/1n1p2p1/4P3/P2P4/1B3N2/1PP2PPP/RNBQK2R b KQkq a3"
"Pirc-Robatsch (4.Be3 Nd7)","r1bqk1nr/pppnppbp/3p2p1/8/3PP3/2N1B3/PPP2PPP/R2QKBNR w KQkq -"
"Pirc (3.Nc3 c6)","r1b1kb1r/pp1n1ppp/2pp1n2/q3p3/3PPP2/2NB1N2/PPP3PP/R1BQK2R w KQkq -"
"QGA: Schwartz defence","rnbqkbnr/ppp1p1pp/8/5p2/2pPP3/8/PP3PPP/RNBQKBNR w KQkq f6"
"King's Indian: Petrosian system, Stein variation","rnbq1rk1/1pp2pbp/3p1np1/p2Pp3/2P1P3/2N2N2/PP2BPPP/R1BQK2R w KQ a6"
"King's Indian: orthodox (7...exd4)","rnbqr1k1/pp3pbp/2pp1np1/8/2PNP3/2N1BP2/PP2B1PP/R2Q1RK1 b - -"
"QGD: Orthodox defense, Bd3 line, 11.O-O *","2rq1rk1/pp3ppp/2n1pn2/2bp4/3N4/2P1P3/PP1NQPPP/R1B2RK1 w - -"
"Giuoco Piano: Mestel variation","r1b1k1nr/ppppqppp/1bn5/4p1B1/2BPP3/2P2N2/PP3PPP/RN1QK2R b KQkq -"
"Evans gambit: compromised defense, Potter variation","r1b1k2r/ppppnppp/2n3q1/b3P3/2B5/1QN2N2/P4PPP/R1BR2K1 b kq -"
"Evans gambit declined, Vasquez variation","r1b3nr/ppppkBpp/1b6/nP2N1qQ/4P3/8/P1PP1PPP/RNB1K2R b KQ -"
"Ruy Lopez: Rabinovich variation","r1bq1k1r/2p2ppp/p4n2/1pbPR1N1/3n4/1B6/PPPP1PPP/RNBQ2K1 w - -"
"Four Knights: Rubinstein counter-gambit Maroczy variation","r1bq1rk1/ppp2ppp/1b1p1n2/4p3/N3P3/3P1B2/PPP2PPP/R1BQ1RK1 w - -"
"Nimzo-Indian: Samisch, Capablanca variation *","r1bqk2r/4nppp/p1pb4/2ppp3/2P5/1PN1P3/P2P1PPP/R1BQNRK1 b kq -"
"QGA: classical, Furman variation","r1bqk2r/5ppp/p1n1pn2/1pb1P3/2B5/5N2/PP2QPPP/RNB2RK1 b kq -"
"English: Anglo-Grunfeld defense, Korchnoi variation *","r1bqk2r/pp1pppbp/2n2np1/8/3NP3/6P1/PPP2PBP/RNBQK2R b KQkq -"
"Nimzo-Indian: 4.e3, main line with ...c5 *","r1bqk2r/pp3ppp/2nbpn2/1Bpp4/2PP4/4PN2/PP3PPP/RNBQ1RK1 b kq -"
"QGD semi-Slav: Meran, 8...a6 *","r1bqk2r/pp3ppp/2nbpn2/3p4/1P6/P1P1PN2/3N1PPP/R1BQKB1R b KQkq -"
"Two Knights defense: Fritz, Gruber variation","r1bqkb1r/p1p2ppp/8/1p1np3/3nN3/2P5/PP1P1PPP/RNBQKB1R b KQkq -"
"English, Smyslov defense *","r1bqkb1r/pp1ppppp/2n2n2/2p3B1/4P3/3P4/PPP2PPP/RN1QKBNR b KQkq -"
"English: Bellon gambit *","r1bqkb1r/pp1ppppp/2n5/2p1P3/1P4n1/5N2/P1PP1PPP/RNBQKB1R b KQkq -"
"QGD: Chigorin defense, Janowski variation *","r1bqkb1r/pp2pppp/2n2n2/2Pp4/8/2N5/PPP1PPPP/R1BQKBNR w KQkq -"
"Sicilian: Richter-Rauzer, Margate (Alekhine) variation","r1bqkb1r/pp3ppp/2nppn2/1B4B1/3NP3/2N5/PPP2PPP/R2QK2R b KQkq -"
"French: Reversed Philidor formation","r1bqkb1r/ppp2ppp/2n1pn2/3p4/4P3/3P1N2/PPPNBPPP/R1BQK2R b KQkq -"
"Scandinavian: Anderssen counter-attack, Collijn variation *","r1bqkb1r/ppp2ppp/2n2n2/3p2B1/Q3P3/8/PPP2PPP/RN2KBNR b KQkq -"
"Sicilian: Pelikan (Lasker/Sveshnikov) variation *","r1bqkb1r/ppp2ppp/2n5/3np3/4P3/2N2N2/PP1P1PPP/R1BQKB1R b KQkq -"
"Sicilian: Taimanov variation *","r1bqkb1r/ppp2ppp/2n5/3np3/8/P1N1P3/1P1P1PPP/R1BQKBNR b KQkq -"
"French defense *","r1bqkbnr/ppp2ppp/2n5/3pp3/3P4/4PN2/PPP2PPP/RNBQKB1R b KQkq -"
"QGD: Tarrasch, Bogolyubov variation","r2q1rk1/pp2bppp/2n1bn2/3p2B1/2pP4/2N2NP1/PP2PPBP/2RQ1RK1 w - -"
"King's Indian: Samisch, Ruban variation *","r2qkb1r/pp2n1pp/2n1bp2/2ppp3/8/2NP1NP1/PPP1PPBP/1RBQ1RK1 b kq -"
"KGA: Kieseritsky, Brentano defense, Caro variation *","r2qkb1r/pppn2p1/8/3pNbPp/3Pn3/8/PPP2P1P/RNBQKB1R w KQkq -"
"QGD: 5...c6 *","r2qkbnr/pp3ppp/2n1p3/2pp4/3P2b1/2P1PN2/PP1N1PPP/R1BQKB1R b KQkq -"
"French: classical, Frankfurt variation *","r2qkbnr/ppp2ppp/2n1b3/3p4/3Pp3/1P2P3/P1P1BPPP/RNBQK1NR b KQkq -"
"Ruy Lopez: old Steinitz defense, semi-Duras variation","r2qkbnr/pppb1ppp/2np4/1B2p3/2PPP3/5N2/PP3PPP/RNBQK2R b KQkq -"
"Grunfeld defense: Smyslov, Yugoslav variation *","r3kb1r/pp3ppp/1qn1bn2/3pp1B1/2P5/6P1/PP1NPPBP/RN1Q1RK1 b kq -"
"Giuoco piano: Rosentreter variation *","rn1q1rk1/ppp3pp/8/2bNpp1b/4P1P1/5N1P/PPPP1P2/R1BQK2R w KQ -"
"QGA, Janowsky-Larsen variation","rn1qkb1r/ppp1pppp/5n2/8/2pP2b1/4PN2/PP3PPP/RNBQKB1R w KQkq -"
"KGA: bishop's gambit, Fraser variation","rnb1k1nr/pppp1pbp/8/6p1/2B1P2q/2N2Qp1/PPPP3P/R1B2KNR b kq -"
"French: classical, Steinitz variation","rnb1k2r/pppnqppp/4p3/3pP3/3P1P2/2N5/PPP3PP/R2QKBNR b KQkq -"
"Two Knights defense: Yankovich variation *","rnb1k2r/pppnqppp/8/2p1P3/2Bp4/5N1P/PPP2PP1/R1BQK2R w KQkq -"
"QGD/QGD semi-Slav: Hastings variation","rnb1kb1r/pp3pp1/2p1pq1p/3p4/2PP4/1QN2N2/PP2PPPP/R3KB1R b KQkq -"
"Philidor: Boden variation *","rnb1kb1r/ppp2ppp/5n2/3qp3/8/3P4/PPPB1PPP/RN1QKBNR b KQkq -"
"Catalan: closed, Qc2 & b3 *","rnb2rk1/p1q1ppbp/1p3np1/2pp4/3P4/2P1PN2/PP1NBPPP/R1BQ1RK1 w - -"
"Dutch: Leningrad, main variation with c6","rnbq1rk1/pp2p1bp/2pp1np1/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - -"
"Reti: King's Indian attack, Pachman system *","rnbq1rk1/ppp1ppbp/3p1np1/8/3PP3/6P1/PPP1NPBP/RNBQK2R b KQ -"
"Ruy Lopez: ...b5 & ...d6 *","rnbq1rk1/pppp1ppp/1b3n2/4p3/1P2P3/P1NP1N2/2P2PPP/R1BQKB1R b KQ -"
"KGA: Cunningham defense","rnbqk1nr/ppppbppp/8/8/4Pp2/5N2/PPPP2PP/RNBQKB1R w KQkq -"
"KGD: classical, Reti variation *","rnbqk2r/pp4pp/2p2n2/2bPp3/2B2P2/8/PPP3PP/RNBQK1NR w KQkq -"
"KGA: Kieseritsky, Salvio defense, Cozio variation *","rnbqk2r/ppp3p1/8/2bppPPp/4nP2/8/PPPPQ2P/RNB1KBNR w KQkq -"
"Nimzo-Indian: Spielmann variation","rnbqk2r/pppp1ppp/4pn2/8/1bPP4/1QN5/PP2PPPP/R1B1KBNR b KQkq -"
"Latvian: Polerio variation *","rnbqk2r/pppp1ppp/8/2b1P3/3Pn3/8/PPP3PP/RNBQKBNR b KQkq -"
"French: advance, Euwe variation *","rnbqkb1r/pp3ppp/2p2n2/3p4/2PPp3/2N1P3/PP1B1PPP/R2QKBNR b KQkq -"
"French: Henneberger variation","rnbqkb1r/ppp2ppp/4pn2/3p4/3PP3/2N1B3/PPP2PPP/R2QKBNR b KQkq -"
"Scotch: Pulling counter-attack *","rnbqkb1r/ppp2ppp/8/3np2Q/8/2N5/PPPP1PPP/R1B1KBNR b KQkq -"
"KGA: Allgaier, Thorold variation *","rnbqkb1r/ppp3p1/8/3ppPPp/8/7P/PPPP1K2/RNBQ1BNR w kq -"
"Queen's pawn: Torre attack","rnbqkb1r/pppp1ppp/4pn2/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq -"
"Bishop's opening: Greco gambit","rnbqkb1r/pppp1ppp/5n2/4p3/2B1PP2/8/PPPP2PP/RNBQK1NR b KQkq -"
"Petrov's defense *","rnbqkb1r/pppp1ppp/5n2/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -"
"Budapest: Fajarowicz variation","rnbqkb1r/pppp1ppp/8/4P3/2P1n3/8/PP2PPPP/RNBQKBNR w KQkq -"
"Queen's pawn: Bronstein gambit","rnbqkb1r/pppppppp/5n2/8/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq -"
"Center game, Kieseritsky variation","rnbqkbnr/p2p1ppp/8/1pp5/2BpP3/5N2/PPP2PPP/RNBQK2R w KQkq -"
"Caro-Kann defense","rnbqkbnr/pp1ppppp/2p5/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq -"
"KGD: Nimzovich counter-gambit","rnbqkbnr/pp3ppp/2p5/3Pp3/5P2/8/PPPP2PP/RNBQKBNR w KQkq -"
"Alekhine's defense: four pawns attack, fianchetto variation *","rnbqkbnr/pp4pp/8/2pp1p2/4p3/1N1P2P1/PPP1PP1P/RNBQKB1R b KQkq -"
"Old Benoni defense *","rnbqkbnr/ppp1pppp/8/8/2Pp4/5N2/PP1PPPPP/RNBQKB1R b KQkq -"
"QGD: 3.Nc3","rnbqkbnr/ppp2ppp/4p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq -"
"Hammerschlag (Fried fox/Pork chop opening)","rnbqkbnr/pppp1ppp/8/4p3/8/5P2/PPPPPKPP/RNBQ1BNR b kq -"
"Global opening","rnbqkbnr/pppp1ppp/8/4p3/8/P6P/1PPPPPP1/RNBQKBNR b KQkq -"
"Dutch, Krejcik gambit","rnbqkbnr/ppppp1pp/8/5p2/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq -"
"Reti: Pirc-Lisitsin gambit","rnbqkbnr/ppppp1pp/8/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq -"
"Bird's opening","rnbqkbnr/pppppppp/8/8/5P2/8/PPPPP1PP/RNBQKBNR b KQkq -"
"Old Indian: Steiner-Wade variation","rnbqkb1r/ppp2ppp/3p1n2/3Pp3/2P5/2N5/PP2PPPP/R1BQKBNR b KQkq -"
"Benoni: four pawns attack","rnbq1rk1/pp3pbp/3p1np1/2pP4/4PP2/2NB1N2/PP4PP/R1BQK2R b KQ -"
"Philidor: Philidor counter-gambit","rnbqkbnr/ppp3pp/3p4/4pp2/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq f6"
"Sicilian: Nimzovich-Rossolimo attack, Gurgenidze variation","r1bqk1nr/pp1p1pbp/2n3p1/1Bp1p3/1P2P3/5N2/P1PP1PPP/RNBQR1K1 b kq b3"
"French: exchange, Blackburne variation","rn1qkbnr/ppp2ppp/4b3/3p4/3P4/5N2/PPPN1PPP/R1BQKB1R b KQkq -"
"QGD Slav: Slav gambit","rnbqkb1r/pp2pppp/2p2n2/8/2pPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq e3"
"QGD Slav accepted: Alapin variation","rnbqkb1r/pp2pppp/2p2n2/8/P1pP4/2N2N2/1P2PPPP/R1BQKB1R b KQkq a3"
"QGA: 3.e4","rnbqkbnr/ppp1pppp/8/8/2pPP3/8/PP3PPP/RNBQKBNR b KQkq e3"
"Nimzo-Indian: classical, Adorjan gambit","rnbq1rk1/p1pp1ppp/4pn2/1p6/2PP4/P1Q5/1P2PPPP/R1B1KBNR w KQ b6"
