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openings.tsv
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openings.tsv
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eco name fen moves
A00 Amar Gambit rn1qkbnr/ppp2ppp/8/3p4/5p2/6PB/PPPPP2P/RNBQK2R w KQkq - g1h3 d7d5 g2g3 e7e5 f2f4 c8h3 f1h3 e5f4
A00 Amar Opening: Gent Gambit rn1qkbnr/ppp2ppp/8/3p4/8/6PB/PPPPP3/RNBQ1RK1 b kq - g1h3 d7d5 g2g3 e7e5 f2f4 c8h3 f1h3 e5f4 e1g1 f4g3 h2g3
A00 Amar Opening: Paris Gambit rnbqkbnr/ppp2ppp/8/3pp3/5P2/6PN/PPPPP2P/RNBQKB1R b KQkq - g1h3 d7d5 g2g3 e7e5 f2f4
A00 Amar Opening rnbqkbnr/pppppppp/8/8/8/7N/PPPPPPPP/RNBQKB1R b KQkq - g1h3
A00 Amsterdam Attack r1bqkb1r/ppp2ppp/2np1n2/4p3/2P5/1PN1P3/P2P1PPP/R1BQKBNR w KQkq - e2e3 e7e5 c2c4 d7d6 b1c3 b8c6 b2b3 g8f6
A00 Anderssen Opening: Polish Gambit rnbqkbnr/1ppppppp/8/p7/1P6/P7/2PPPPPP/RNBQKBNR b KQkq - a2a3 a7a5 b2b4
A00 Anderssen Opening rnbqkbnr/pppppppp/8/8/8/P7/1PPPPPPP/RNBQKBNR b KQkq - a2a3
A00 Barnes Opening: Fool's Mate rnb1kbnr/pppp1ppp/8/4p3/6Pq/5P2/PPPPP2P/RNBQKBNR w KQkq - f2f3 e7e5 g2g4 d8h4
A00 Barnes Opening: Gedult Gambit rnbqkbnr/ppp1pp1p/6p1/8/3Pp3/2P2P2/PP4PP/RNBQKBNR b KQkq - f2f3 d7d5 e2e4 g7g6 d2d4 d5e4 c2c3
A00 Barnes Opening: Gedult Gambit rnbqkbnr/ppppp1pp/8/8/4p3/2N2P2/PPPP2PP/R1BQKBNR b KQkq - f2f3 f7f5 e2e4 f5e4 b1c3
A00 Barnes Opening: Hammerschlag rnbqkbnr/pppp1ppp/8/4p3/8/5P2/PPPPPKPP/RNBQ1BNR b kq - f2f3 e7e5 e1f2
A00 Caro-Kann Defense: Labahn Attack rnbqkbnr/pp1ppppp/2p5/8/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq - b2b4 c7c6 e2e4
A00 Clemenz Opening rnbqkbnr/pppppppp/8/8/8/7P/PPPPPPP1/RNBQKBNR b KQkq - h2h3
A00 Clemenz Opening: Spike Lee Gambit rnbqkbnr/ppppppp1/8/7p/6P1/7P/PPPPPP2/RNBQKBNR b KQkq - h2h3 h7h5 g2g4
A00 Crab Opening rnbqkbnr/pppp1ppp/8/4p3/P6P/8/1PPPPPP1/RNBQKBNR b KQkq - a2a4 e7e5 h2h4
A00 Creepy Crawly Formation: Classical Defense rnbqkbnr/ppp2ppp/8/3pp3/8/P6P/1PPPPPP1/RNBQKBNR w KQkq - h2h3 d7d5 a2a3 e7e5
A00 Englund Gambit Declined, Reversed French rnbqkbnr/pppp1ppp/8/4p3/3P4/4P3/PPP2PPP/RNBQKBNR b KQkq - e2e3 e7e5 d2d4
A00 Formation: Cabbage Attack r1bq1rk1/ppp2ppp/2nb1n2/3pp3/P7/1PP1P1P1/1B1P1P1P/RN1QKBNR b KQ - c2c3 e7e5 a2a3 d7d5 b2b3 g8f6 c1b2 b8c6 a3a4 f8d6 g2g3 e8g8 e2e3
A00 Formation: Hippopotamus Attack r1bq1rk1/ppp2ppp/2nb1n2/3pp3/8/PPPPPPP1/7P/RNBQKBNR b KQ - a2a3 e7e5 b2b3 d7d5 c2c3 g8f6 d2d3 b8c6 e2e3 f8d6 f2f3 e8g8 g2g3
A00 Formation: Shy Attack r1bq1rk1/ppp2ppp/2nb1n2/3pp3/8/P2PP1PP/1PPN1PB1/R1BQK1NR b KQ - a2a3 e7e5 g2g3 d7d5 f1g2 g8f6 d2d3 b8c6 b1d2 f8d6 e2e3 e8g8 h2h3
A00 Gedult's Opening rnbqkbnr/pppppppp/8/8/8/5P2/PPPPP1PP/RNBQKBNR b KQkq - f2f3
A00 Global Opening rnbqkbnr/pppp1ppp/8/4p3/8/P6P/1PPPPPP1/RNBQKBNR b KQkq - h2h3 e7e5 a2a3
A00 Grob Opening: Alessi Gambit rnbqkbnr/ppppp1pp/8/5p2/6P1/8/PPPPPP1P/RNBQKBNR w KQkq - g2g4 f7f5
A00 Grob Opening: Double Grob, Coca-Cola Gambit rnbqkbnr/pppppp1p/8/6p1/5PP1/8/PPPPP2P/RNBQKBNR b KQkq - g2g4 g7g5 f2f4
A00 Grob Opening: Double Grob rnbqkbnr/pppppp1p/8/6p1/6P1/8/PPPPPP1P/RNBQKBNR w KQkq - g2g4 g7g5
A00 Grob Opening: Grob Gambit, Basman Gambit rnbqkbnr/ppp1ppp1/8/3p3P/8/8/PPPPPPBP/RNBQK1NR b KQkq - g2g4 d7d5 f1g2 h7h5 g4h5
A00 Grob Opening: Grob Gambit Declined rnbqkbnr/pp2pppp/2p5/3p4/6P1/8/PPPPPPBP/RNBQK1NR w KQkq - g2g4 d7d5 f1g2 c7c6
A00 Grob Opening: Grob Gambit, Fritz Gambit rn1qkbnr/ppp1pppp/8/3p4/2P3b1/8/PP1PPPBP/RNBQK1NR b KQkq - g2g4 d7d5 f1g2 c8g4 c2c4
A00 Grob Opening: Grob Gambit, Fritz Gambit, Romford Countergambit q3kbnr/p1pnpppp/8/8/2Pp2b1/8/PP1PPP1P/RNBQK1NR w KQk - g2g4 d7d5 f1g2 c8g4 c2c4 d5d4 g2b7 b8d7 b7a8 d8a8
A00 Grob Opening: Grob Gambit, Keres Gambit rnbqkbnr/ppp2ppp/8/3p4/3p2P1/2P5/PP2PPBP/RNBQK1NR b KQkq - g2g4 d7d5 f1g2 e7e5 d2d4 e5d4 c2c3
A00 Grob Opening: Grob Gambit, Richter-Grob Gambit rnbqkbnr/pp2pppp/2p5/8/2p3P1/1P6/P2PPPBP/RNBQK1NR b KQkq - g2g4 d7d5 f1g2 c7c6 c2c4 d5c4 b2b3
A00 Grob Opening: Grob Gambit rnbqkbnr/ppp1pppp/8/3p4/6P1/8/PPPPPPBP/RNBQK1NR b KQkq - g2g4 d7d5 f1g2
A00 Grob Opening: Keene Defense, Main Line rnbqk2r/pp2nppp/2pb4/3p4/2PPp1P1/2N4P/PP2PPB1/R1BQK1NR w KQkq - g2g4 d7d5 h2h3 e7e5 f1g2 c7c6 d2d4 e5e4 c2c4 f8d6 b1c3 g8e7
A00 Grob Opening: Keene Defense rnbqkbnr/pp3ppp/2p5/3pp3/6P1/7P/PPPPPPB1/RNBQK1NR w KQkq - g2g4 d7d5 h2h3 e7e5 f1g2 c7c6
A00 Grob Opening: London Defense r1bqkbnr/pppp1ppp/2n5/4p3/6P1/7P/PPPPPP2/RNBQKBNR w KQkq - g2g4 e7e5 h2h3 b8c6
A00 Grob Opening rnbqkbnr/pppppppp/8/8/6P1/8/PPPPPP1P/RNBQKBNR b KQkq - g2g4
A00 Grob Opening: Romford Countergambit rn1qkbnr/ppp1pppp/8/8/2Pp2b1/8/PP1PPPBP/RNBQK1NR w KQkq - g2g4 d7d5 f1g2 c8g4 c2c4 d5d4
A00 Grob Opening: Spike Attack rnbqkbnr/pp2pppp/2p5/3p2P1/8/8/PPPPPPBP/RNBQK1NR b KQkq - g2g4 d7d5 f1g2 c7c6 g4g5
A00 Grob Opening: Spike, Hurst Attack rnbqkbnr/ppp2ppp/8/3pp3/2P3P1/8/PP1PPPBP/RNBQK1NR b KQkq - g2g4 e7e5 f1g2 d7d5 c2c4
A00 Grob Opening: Zilbermints Gambit rnbqkbnr/ppp1pppp/8/8/4p1P1/2N5/PPPP1P1P/R1BQKBNR b KQkq - g2g4 d7d5 e2e4 d5e4 b1c3
A00 Grob Opening: Zilbermints Gambit, Schiller Defense rnbqkbnr/ppp1ppp1/8/7p/4p1P1/2N5/PPPP1P1P/R1BQKBNR w KQkq - g2g4 d7d5 e2e4 d5e4 b1c3 h7h5
A00 Grob Opening: Zilbermints Gambit, Zilbermints-Hartlaub Gambit rnbqkbnr/ppp2ppp/8/4p3/4p1P1/2NP4/PPP2P1P/R1BQKBNR b KQkq - g2g4 d7d5 e2e4 d5e4 b1c3 e7e5 d2d3
A00 Hungarian Opening: Asten Gambit r1bqkbnr/ppp3pp/2n5/4Pp2/3pN3/6P1/PPP1PP1P/R1BQKBNR w KQkq f6 g2g3 b8c6 b1c3 d7d5 d2d4 e7e5 d4e5 d5d4 c3e4 f7f5
A00 Hungarian Opening: Bücker Gambit rnbqkbnr/ppp2ppp/8/3pp3/1P6/6P1/P1PPPPBP/RNBQK1NR b KQkq - g2g3 d7d5 f1g2 e7e5 b2b4
A00 Hungarian Opening: Burk Gambit rnbqk1nr/ppp1bppp/8/3p4/4p2N/P2P2P1/1PP1PP1P/RNBQKB1R b KQkq - g2g3 e7e5 a2a3 d7d5 g1f3 e5e4 f3h4 f8e7 d2d3
A00 Hungarian Opening: Catalan Formation rnbqkbnr/ppp2ppp/4p3/3p4/8/6P1/PPPPPPBP/RNBQK1NR w KQkq - g2g3 d7d5 f1g2 e7e6
A00 Hungarian Opening: Dutch Defense rnbqkbnr/ppppp1pp/8/5p2/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - g2g3 f7f5
A00 Hungarian Opening: Indian Defense rnbqkb1r/pppppppp/5n2/8/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - g2g3 g8f6
A00 Hungarian Opening: Myers Defense rnbqkbnr/pppppp1p/8/6p1/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - g2g3 g7g5
A00 Hungarian Opening: Pachman Gambit rnbqkbnr/ppppp2p/6p1/7Q/4p3/6P1/PPPP1P1P/RNB1KBNR w KQkq - g2g3 f7f5 e2e4 f5e4 d1h5 g7g6
A00 Hungarian Opening: Paris Gambit rn1qkbnr/ppp2ppp/8/3p4/5p2/6PB/PPPPP2P/RNBQ1RK1 b kq - g2g3 e7e5 g1h3 d7d5 f2f4 c8h3 f1h3 e5f4 e1g1
A00 Hungarian Opening: Reversed Alekhine rnbqkbnr/pppp1ppp/8/4p3/8/5NP1/PPPPPP1P/RNBQKB1R b KQkq - g2g3 e7e5 g1f3
A00 Hungarian Opening: Reversed Brooklyn Defense, Brooklyn Benko Gambit rnbqkb1r/pppp1ppp/5n2/8/1P2p3/6P1/P1PPPP1P/RNBQKBNR b KQkq - g2g3 e7e5 g1f3 e5e4 f3g1 g8f6 b2b4
A00 Hungarian Opening: Reversed Modern Defense rnbqkbnr/pp2pppp/8/2pp4/8/6P1/PPPPPPBP/RNBQK1NR w KQkq - g2g3 d7d5 f1g2 c7c5
A00 Hungarian Opening: Reversed Norwegian Defense rnbqkbnr/pppp1ppp/8/8/4p2N/6P1/PPPPPP1P/RNBQKB1R b KQkq - g2g3 e7e5 g1f3 e5e4 f3h4
A00 Hungarian Opening rnbqkbnr/pppppppp/8/8/8/6P1/PPPPPP1P/RNBQKBNR b KQkq - g2g3
A00 Hungarian Opening: Sicilian Invitation rnbqkbnr/pp1ppppp/8/2p5/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - g2g3 c7c5
A00 Hungarian Opening: Slav Formation rnbqkbnr/pp2pppp/2p5/3p4/8/6P1/PPPPPPBP/RNBQK1NR w KQkq - g2g3 d7d5 f1g2 c7c6
A00 Hungarian Opening: Symmetrical Variation rnbqkbnr/pppppp1p/6p1/8/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - g2g3 g7g6
A00 Hungarian Opening: Van Kuijk Gambit rnbqkbnr/ppppppp1/8/8/7p/5NP1/PPPPPP1P/RNBQKB1R w KQkq - g2g3 h7h5 g1f3 h5h4
A00 Hungarian Opening: Winterberg Gambit rnbqkbnr/ppp2ppp/8/4p3/2p5/1P4P1/P2PPPBP/RNBQK1NR b KQkq - g2g3 d7d5 f1g2 e7e5 c2c4 d5c4 b2b3
A00 Indian Game: Colle System, King's Indian Variation rnbqk2r/ppp1ppbp/3p1np1/8/3P4/3BPN2/PPP2PPP/RNBQK2R w KQkq - e2e3 d7d6 d2d4 g7g6 g1f3 f8g7 f1d3 g8f6
A00 Kadas Opening: Beginner's Trap rnbqkbnr/ppp1pppp/8/3p4/7P/7R/PPPPPPP1/RNBQKBN1 b Qkq - h2h4 d7d5 h1h3
A00 Kadas Opening: Kadas Gambit rnbqkbnr/pp1ppppp/8/2p5/1P5P/8/P1PPPPP1/RNBQKBNR b KQkq - h2h4 c7c5 b2b4
A00 Kadas Opening: Kadas Gambit rnbqkbnr/pp2pppp/8/3p4/3p3P/2P2N2/PP2PPP1/RNBQKB1R b KQkq - h2h4 d7d5 d2d4 c7c5 g1f3 c5d4 c2c3
A00 Kadas Opening: Kadas Gambit rnbqkbnr/pppp1ppp/8/8/3p3P/2P5/PP2PPP1/RNBQKBNR b KQkq - h2h4 e7e5 d2d4 e5d4 c2c3
A00 Kadas Opening: Myers Variation rnbqkbnr/pp2pppp/8/2pp4/3PP2P/8/PPP2PP1/RNBQKBNR b KQkq - h2h4 d7d5 d2d4 c7c5 e2e4
A00 Kadas Opening rnbqkbnr/pppppppp/8/8/7P/8/PPPPPPP1/RNBQKBNR b KQkq - h2h4
A00 Kadas Opening: Schneider Gambit rnbqkbnr/pppppp1p/8/6p1/7P/8/PPPPPPP1/RNBQKBNR w KQkq - h2h4 g7g5
A00 Kadas Opening: Steinbok Gambit rnbqkbnr/ppppp1pp/8/8/4p2P/3P4/PPP2PP1/RNBQKBNR b KQkq - h2h4 f7f5 e2e4 f5e4 d2d3
A00 Lasker Simul Special rnbqkbnr/ppppppp1/8/7p/8/6P1/PPPPPP1P/RNBQKBNR w KQkq - g2g3 h7h5
A00 Mieses Opening: Myers Spike Attack rnbqkbnr/pppppp1p/6p1/8/6P1/3P4/PPP1PP1P/RNBQKBNR b KQkq - d2d3 g7g6 g2g4
A00 Mieses Opening: Reversed Rat rnbqkbnr/pppp1ppp/8/4p3/8/3P4/PPP1PPPP/RNBQKBNR w KQkq - d2d3 e7e5
A00 Mieses Opening rnbqkbnr/pppppppp/8/8/8/3P4/PPP1PPPP/RNBQKBNR b KQkq - d2d3
A00 Polish Opening: Baltic Defense rn1qkbnr/ppp1pppp/8/3p1b2/1P6/8/PBPPPPPP/RN1QKBNR w KQkq - b2b4 d7d5 c1b2 c8f5
A00 Polish Opening: Birmingham Gambit rnbqkbnr/pp1ppppp/8/2p5/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - b2b4 c7c5
A00 Polish Opening: Bugayev Advance Variation rnbqkbnr/pppp2pp/5p2/1P2p3/8/8/PBPPPPPP/RN1QKBNR b KQkq - b2b4 e7e5 c1b2 f7f6 b4b5
A00 Polish Opening: Bugayev Attack rnbqkbnr/pppp1ppp/8/4p3/1P6/P7/2PPPPPP/RNBQKBNR b KQkq - b2b4 e7e5 a2a3
A00 Polish Opening: Czech Defense rnbqkbnr/ppp2ppp/3p4/4p3/1P6/8/PBPPPPPP/RN1QKBNR w KQkq - b2b4 e7e5 c1b2 d7d6
A00 Polish Opening: Dutch Defense rnbqkbnr/ppppp1pp/8/5p2/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - b2b4 f7f5
A00 Polish Opening: German Defense rnb1kbnr/ppp1pppp/3q4/3p4/1P6/8/PBPPPPPP/RN1QKBNR w KQkq - b2b4 d7d5 c1b2 d8d6
A00 Polish Opening: Grigorian Variation r1bqkbnr/pppppppp/2n5/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - b2b4 b8c6
A00 Polish Opening: Karniewski Variation rnbqkb1r/pppppppp/7n/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - b2b4 g8h6
A00 Polish Opening: King's Indian Variation rnbqkb1r/pppppp1p/5np1/8/1P6/8/PBPPPPPP/RN1QKBNR w KQkq - b2b4 g8f6 c1b2 g7g6
A00 Polish Opening: King's Indian Variation, Schiffler Attack rnbqkb1r/pppppp1p/5np1/8/1P2P3/8/PBPP1PPP/RN1QKBNR b KQkq - b2b4 g8f6 c1b2 g7g6 e2e4
A00 Polish Opening: Myers Variation rnbqkbnr/pp2pppp/2p5/3p4/PP6/8/1BPPPPPP/RN1QKBNR b KQkq - b2b4 d7d5 c1b2 c7c6 a2a4
A00 Polish Opening: Orangutan-Diemer Gambit rnb1kbnr/ppp2ppp/3q4/4p3/1P2p3/P4P2/1BPP2PP/RN1QKBNR b KQkq - b2b4 d7d5 c1b2 d8d6 a2a3 e7e5 e2e4 d5e4 f2f3
A00 Polish Opening: Orangutan-Hartlaub Gambit rnbqkb1r/1p3ppp/2p1pn2/P2p4/4P3/P2P4/1BP2PPP/RN1QKBNR b KQkq - b2b4 g8f6 c1b2 e7e6 a2a3 c7c6 d2d3 a7a5 b4a5 d7d5 e2e4
A00 Polish Opening: Outflank Variation rnbqkbnr/pp1ppppp/2p5/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - b2b4 c7c6
A00 Polish Opening: Queenside Defense rnbqkb1r/1ppp1ppp/p3pn2/1P6/8/8/PBPPPPPP/RN1QKBNR w KQkq - b2b4 e7e6 c1b2 g8f6 b4b5 a7a6
A00 Polish Opening: Queen's Indian Variation rnbqkb1r/p1pp1ppp/1p2pn2/1P6/8/8/PBPPPPPP/RN1QKBNR w KQkq - b2b4 e7e6 c1b2 g8f6 b4b5 b7b6
A00 Polish Opening rnbqkbnr/pppppppp/8/8/1P6/8/P1PPPPPP/RNBQKBNR b KQkq - b2b4
A00 Polish Opening: Rooks Swap Line 1nbqkb1r/1ppp1ppp/4pn2/1P6/8/8/2PPPPPP/BN1QKBNR b Kk - b2b4 e7e6 c1b2 g8f6 b4b5 a7a6 a2a4 a6b5 a4b5 a8a1 b2a1
A00 Polish Opening: Schiffler-Sokolsky Variation rnbqkb1r/ppp2ppp/4pn2/1P1p4/8/4P3/PBPP1PPP/RN1QKBNR b KQkq - b2b4 e7e6 c1b2 g8f6 b4b5 d7d5 e2e3
A00 Polish Opening: Schuehler Gambit rnbqkbnr/1p1ppppp/8/pp6/4P3/8/PBPP1PPP/RN1QKBNR b KQkq - b2b4 c7c6 c1b2 a7a5 b4b5 c6b5 e2e4
A00 Polish Opening: Symmetrical Variation rnbqkbnr/p1pppppp/8/1p6/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - b2b4 b7b5
A00 Polish Opening: Tartakower Gambit, Brinckmann Variation r1b1k1nr/ppppq2p/2n2pp1/4pP2/1bB1P3/8/PBPP2PP/RN1QK1NR w KQkq - b2b4 e7e5 c1b2 f7f6 e2e4 f8b4 f1c4 b8c6 f2f4 d8e7 f4f5 g7g6
A00 Polish Opening: Tartakower Gambit rnbqkbnr/pppp2pp/5p2/4p3/1P2P3/8/PBPP1PPP/RN1QKBNR b KQkq - b2b4 e7e5 c1b2 f7f6 e2e4
A00 Polish Opening: Wolferts Gambit rnbqkbnr/pp1p1ppp/8/2p1p3/1P6/8/PBPPPPPP/RN1QKBNR w KQkq - b2b4 e7e5 c1b2 c7c5
A00 Saragossa Opening rnbqkbnr/pppppppp/8/8/8/2P5/PP1PPPPP/RNBQKBNR b KQkq - c2c3
A00 Sodium Attack: Celadon Variation rnbqk1nr/pp3ppp/8/2ppp3/8/P2PP3/P1P2PPP/1RBQKBNR b Kkq - b1a3 e7e5 d2d3 f8a3 b2a3 d7d5 e2e3 c7c5 a1b1
A00 Sodium Attack: Chenoboskion Variation rnbqkbnr/pppppp1p/6p1/8/6P1/N7/PPPPPP1P/R1BQKBNR b KQkq - b1a3 g7g6 g2g4
A00 Sodium Attack: Durkin Gambit r1bqkbnr/pppp2pp/2n5/4pp2/2N1P3/8/PPPP1PPP/R1BQKBNR w KQkq - b1a3 e7e5 a3c4 b8c6 e2e4 f7f5
A00 Sodium Attack rnbqkbnr/pppppppp/8/8/8/N7/PPPPPPPP/R1BQKBNR b KQkq - b1a3
A00 Valencia Opening rnbqkbnr/pppp1ppp/8/4p3/8/3P4/PPPNPPPP/R1BQKBNR b KQkq - d2d3 e7e5 b1d2
A00 Van Geet Opening: Battambang Variation rnbqkbnr/pppp1ppp/8/4p3/8/P1N5/1PPPPPPP/R1BQKBNR b KQkq - a2a3 e7e5 b1c3
A00 Van Geet Opening: Billockus-Johansen Gambit rnbqk1nr/pppp1ppp/8/2b1p3/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq - b1c3 e7e5 g1f3 f8c5
A00 Van Geet Opening: Caro-Kann Variation, St. Patrick's Attack rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N4P/PPPP1PP1/R1BQKBNR b KQkq - b1c3 d7d5 e2e4 c7c6 h2h3
A00 Van Geet Opening: Damhaug Gambit rnbqkbnr/ppp2ppp/8/3pp3/5P2/2N5/PPPPP1PP/R1BQKBNR w KQkq - b1c3 d7d5 f2f4 e7e5
A00 Van Geet Opening: Dougherty Gambit rnbqkbnr/ppp1pppp/8/8/4p3/2N2P2/PPPP2PP/R1BQKBNR b KQkq - b1c3 d7d5 e2e4 d5e4 f2f3
A00 Van Geet Opening: Dunst-Perrenet Gambit rnbqkbnr/ppp1pppp/8/8/4p3/2NP4/PPP2PPP/R1BQKBNR b KQkq - b1c3 d7d5 e2e4 d5e4 d2d3
A00 Van Geet Opening: Düsseldorf Gambit rnbqkbnr/pp1ppppp/8/2p5/1P6/2N5/P1PPPPPP/R1BQKBNR b KQkq - b1c3 c7c5 b2b4
A00 Van Geet Opening: Gladbacher Gambit rnbqkbnr/ppp2ppp/8/4p3/4p3/1PNP4/P1P2PPP/R1BQKBNR b KQkq - b1c3 e7e5 b2b3 d7d5 e2e4 d5e4 d2d3
A00 Van Geet Opening: Hector Gambit rnbqkbnr/ppp1pppp/8/8/2B1p3/2N5/PPPP1PPP/R1BQK1NR b KQkq - b1c3 d7d5 e2e4 d5e4 f1c4
A00 Van Geet Opening: Hergert Gambit r1bqkbnr/ppp2ppp/2np4/4P3/8/2N5/PPPPP1PP/R1BQKBNR w KQkq - b1c3 d7d6 f2f4 e7e5 f4e5 b8c6
A00 Van Geet Opening: Hulsemann Gambit rn1qkbnr/ppp2ppp/4b3/3pp2Q/8/2N1P3/PPPP1PPP/R1B1KBNR w KQkq - b1c3 e7e5 e2e3 d7d5 d1h5 c8e6
A00 Van Geet Opening: Jendrossek Gambit rnbqkb1r/pp2p1pp/5n2/2p2p2/1P1p1P2/5N2/P1PPPNPP/R1BQKB1R b KQkq - b1c3 d7d5 f2f4 d5d4 c3e4 f7f5 e4f2 g8f6 g1f3 c7c5 b2b4
A00 Van Geet Opening: Kluever Gambit rnbqkbnr/ppppp1pp/8/8/4p3/2NP4/PPP2PPP/R1BQKBNR b KQkq - b1c3 f7f5 e2e4 f5e4 d2d3
A00 Van Geet Opening: Laroche Gambit rnbqkbnr/p1pppppp/8/1p6/8/2N5/PPPPPPPP/R1BQKBNR w KQkq - b1c3 b7b5
A00 Van Geet Opening: Liebig Gambit rnbqkb1r/ppp2ppp/5n2/3pp2Q/8/2N1P3/PPPP1PPP/R1B1KBNR w KQkq - b1c3 e7e5 e2e3 d7d5 d1h5 g8f6
A00 Van Geet Opening: Melleby Gambit rnbqkbnr/pp2pppp/8/2p5/3pNP2/8/PPPPP1PP/R1BQKBNR w KQkq - b1c3 d7d5 f2f4 d5d4 c3e4 c7c5
A00 Van Geet Opening: Myers Attack rnbqkbnr/pppppp1p/6p1/8/7P/2N5/PPPPPPP1/R1BQKBNR b KQkq - b1c3 g7g6 h2h4
A00 Van Geet Opening: Napoleon Attack r1bqkbnr/pppp1ppp/2n5/4p3/3P4/2N2N2/PPP1PPPP/R1BQKB1R b KQkq - b1c3 e7e5 g1f3 b8c6 d2d4
A00 Van Geet Opening: Novosibirsk Variation r1bqkbnr/pp1ppppp/2n5/8/7Q/2N5/PPP1PPPP/R1B1KBNR b KQkq - b1c3 c7c5 d2d4 c5d4 d1d4 b8c6 d4h4
A00 Van Geet Opening: Pfeiffer Gambit rnbqkbnr/ppp2ppp/8/4p3/3pNP2/8/PPPPP1PP/R1BQKBNR w KQkq - b1c3 d7d5 f2f4 d5d4 c3e4 e7e5
A00 Van Geet Opening: Pfeiffer Gambit, Sleipnir Countergambit rnbqkbnr/ppp2ppp/8/4p3/3pNP2/5N2/PPPPP1PP/R1BQKB1R b KQkq - b1c3 d7d5 f2f4 d5d4 c3e4 e7e5 g1f3
A00 Van Geet Opening: Reversed Nimzowitsch rnbqkbnr/pppp1ppp/8/4p3/8/2N5/PPPPPPPP/R1BQKBNR w KQkq - b1c3 e7e5
A00 Van Geet Opening: Reversed Scandinavian r1bqkbnr/pppp1ppp/2n5/8/Q7/2N5/PPP1PPPP/R1B1KBNR b KQkq - b1c3 e7e5 d2d4 e5d4 d1d4 b8c6 d4a4
A00 Van Geet Opening rnbqkbnr/pppppppp/8/8/8/2N5/PPPPPPPP/R1BQKBNR b KQkq - b1c3
A00 Van Geet Opening: Sicilian Two Knights r1bqkbnr/pp1ppppp/2n5/8/3N4/2N5/PPP1PPPP/R1BQKB1R b KQkq - b1c3 c7c5 g1f3 b8c6 d2d4 c5d4 f3d4
A00 Van Geet Opening: Sleipnir Gambit rnbqk1nr/ppp2ppp/8/3pp3/1b1P4/2N1P3/PPP2PPP/R1BQKBNR w KQkq - b1c3 d7d5 e2e3 e7e5 d2d4 f8b4
A00 Van Geet Opening: Tübingen Gambit rnbqkb1r/pppppppp/5n2/8/6P1/2N5/PPPPPP1P/R1BQKBNR b KQkq - b1c3 g8f6 g2g4
A00 Van Geet Opening: Twyble Attack rnbqkbnr/pp1ppppp/8/2p5/8/2N5/PPPPPPPP/1RBQKBNR b Kkq - b1c3 c7c5 a1b1
A00 Van Geet Opening: Venezolana Variation rnbqkb1r/ppp1pppp/5n2/3p4/8/2NP2P1/PPP1PP1P/R1BQKBNR b KQkq - b1c3 d7d5 d2d3 g8f6 g2g3
A00 Van Geet Opening: Warsteiner Gambit rnbqkbnr/ppp1pp1p/8/3p2p1/5P2/2N5/PPPPP1PP/R1BQKBNR w KQkq - b1c3 d7d5 f2f4 g7g5
A00 Van't Kruijs Opening: Bouncing Bishop Variation rnbqkbnr/p1pp1ppp/8/1p2p3/8/1B2P3/PPPP1PPP/RNBQK1NR b KQkq - e2e3 e7e5 f1c4 b7b5 c4b3
A00 Van't Kruijs Opening: Keoni-Hiva Gambit, Akahi Variation rnbqkb1r/pppp1ppp/5n2/8/5p2/2N1PN2/PPPP2PP/R1BQKB1R b KQkq - e2e3 e7e5 b1c3 g8f6 f2f4 e5f4 g1f3
A00 Van't Kruijs Opening: Keoni-Hiva Gambit, Alua Variation r1bqkbnr/pppp1ppp/2n5/8/5p2/2N1PN2/PPPP2PP/R1BQKB1R b KQkq - e2e3 e7e5 b1c3 b8c6 f2f4 e5f4 g1f3
A00 Van't Kruijs Opening: Keoni-Hiva Gambit Delayed rnbqkb1r/ppp2ppp/5n2/3p4/5p2/P1N1PN2/1PPP2PP/R1BQKB1R b KQkq - e2e3 d7d5 b1c3 g8f6 a2a3 e7e5 f2f4 e5f4 g1f3
A00 Van't Kruijs Opening: Keoni-Hiva Gambit, Ekolu Variation rnbqkbnr/ppp2ppp/8/3p4/5p2/2N1PN2/PPPP2PP/R1BQKB1R b KQkq - e2e3 e7e5 b1c3 d7d5 f2f4 e5f4 g1f3
A00 Van't Kruijs Opening rnbqkbnr/pppppppp/8/8/8/4P3/PPPP1PPP/RNBQKBNR b KQkq - e2e3
A00 Venezolana Opening r1bqkbnr/pp1ppppp/2n5/2p5/8/2NP2P1/PPP1PP1P/R1BQKBNR b KQkq - d2d3 c7c5 b1c3 b8c6 g2g3
A00 Ware Opening: Cologne Gambit r1bqkbnr/p1pnpppp/1p6/3p4/P2P4/2N5/1PP1PPPP/R1BQKBNR w KQkq - a2a4 b7b6 d2d4 d7d5 b1c3 b8d7
A00 Ware Opening: Meadow Hay Trap rnbqkbnr/pppp1ppp/8/4p3/P7/R7/1PPPPPPP/1NBQKBNR b Kkq - a2a4 e7e5 a1a3
A00 Ware Opening rnbqkbnr/pppppppp/8/8/P7/8/1PPPPPPP/RNBQKBNR b KQkq - a2a4
A00 Ware Opening: Ware Gambit rnbqkbnr/ppp3pp/P7/3ppp2/8/4P3/1PPP1PPP/RNBQKBNR b KQkq - a2a4 e7e5 a4a5 d7d5 e2e3 f7f5 a5a6
A00 Ware Opening: Wing Gambit rn1qkbnr/pbpppppp/8/1P6/8/8/1PPPPPPP/RNBQKBNR w KQkq - a2a4 b7b5 a4b5 c8b7
A00 Zukertort Opening: Reversed Mexican Defense rnbqkbnr/ppp1pppp/8/3p4/8/2N2N2/PPPPPPPP/R1BQKB1R b KQkq - b1c3 d7d5 g1f3
A01 Nimzo-Larsen Attack: Classical Variation rnbqkbnr/ppp1pppp/8/3p4/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - b2b3 d7d5
A01 Nimzo-Larsen Attack: Dutch Variation rnbqkbnr/ppppp1pp/8/5p2/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - b2b3 f7f5
A01 Nimzo-Larsen Attack: English Variation rnbqkbnr/pp1ppppp/8/2p5/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - b2b3 c7c5
A01 Nimzo-Larsen Attack: Graz Attack rnbqkbnr/ppp1pppp/8/3p4/8/BP6/P1PPPPPP/RN1QKBNR b KQkq - b2b3 d7d5 c1a3
A01 Nimzo-Larsen Attack: Indian Variation rnbqkb1r/pppppppp/5n2/8/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - b2b3 g8f6
A01 Nimzo-Larsen Attack: Modern Variation r1bqkbnr/pppp1ppp/2n5/4p3/8/1P2P3/PBPP1PPP/RN1QKBNR b KQkq - b2b3 e7e5 c1b2 b8c6 e2e3
A01 Nimzo-Larsen Attack: Modern Variation r1bqkbnr/pppp1ppp/2n5/4p3/8/1P6/PBPPPPPP/RN1QKBNR w KQkq - b2b3 e7e5 c1b2 b8c6
A01 Nimzo-Larsen Attack: Modern Variation rnbqkbnr/pppp1ppp/8/4p3/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - b2b3 e7e5
A01 Nimzo-Larsen Attack: Modern Variation rnbqkbnr/pppp1ppp/8/4p3/8/1P6/PBPPPPPP/RN1QKBNR b KQkq - b2b3 e7e5 c1b2
A01 Nimzo-Larsen Attack: Pachman Gambit r1bqkbnr/pppp1ppp/2n5/4p3/5P2/1P6/PBPPP1PP/RN1QKBNR b KQkq - b2b3 e7e5 c1b2 b8c6 f2f4
A01 Nimzo-Larsen Attack: Ringelbach Gambit rnbqkbnr/pppp2pp/4p3/5p2/4P3/1P6/PBPP1PPP/RN1QKBNR b KQkq - b2b3 f7f5 c1b2 e7e6 e2e4
A01 Nimzo-Larsen Attack rnbqkbnr/pppppppp/8/8/8/1P6/P1PPPPPP/RNBQKBNR b KQkq - b2b3
A01 Nimzo-Larsen Attack: Spike Variation rnbqkb1r/pppppp1p/5np1/8/6P1/1P6/PBPPPP1P/RN1QKBNR b KQkq - b2b3 g8f6 c1b2 g7g6 g2g4
A01 Nimzo-Larsen Attack: Symmetrical Variation rnbqkbnr/p1pppppp/1p6/8/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - b2b3 b7b6
A01 Nimzowitsch-Larsen Attack: Polish Variation rnbqkbnr/p1pppppp/8/1p6/8/1P6/P1PPPPPP/RNBQKBNR w KQkq - b2b3 b7b5
A02 Bird Opening: Batavo-Polish Attack rnbqkb1r/pppppp1p/5np1/8/1P3P2/5N2/P1PPP1PP/RNBQKB1R b KQkq - f2f4 g8f6 g1f3 g7g6 b2b4
A02 Bird Opening: From's Gambit, Bahr Gambit rnbqkbnr/pppp1ppp/8/4p3/5P2/2N5/PPPPP1PP/R1BQKBNR b KQkq - f2f4 e7e5 b1c3
A02 Bird Opening: From's Gambit, Langheld Gambit rnbqkb1r/ppp2ppp/3P1n2/8/8/8/PPPPP1PP/RNBQKBNR w KQkq - f2f4 e7e5 f4e5 d7d6 e5d6 g8f6
A02 Bird Opening: From's Gambit, Lasker Variation rnbqk1nr/ppp2p1p/3b4/6p1/8/5N2/PPPPP1PP/RNBQKB1R w KQkq - f2f4 e7e5 f4e5 d7d6 e5d6 f8d6 g1f3 g7g5
A02 Bird Opening: From's Gambit, Lipke Variation rnbqk2r/ppp2ppp/3b3n/8/3P4/5N2/PPP1P1PP/RNBQKB1R b KQkq - f2f4 e7e5 f4e5 d7d6 e5d6 f8d6 g1f3 g8h6 d2d4
A02 Bird Opening: From's Gambit rnbqkbnr/pppp1ppp/8/4p3/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - f2f4 e7e5
A02 Bird Opening: Hobbs Gambit rnbqkbnr/pppppp1p/8/6p1/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - f2f4 g7g5
A02 Bird Opening: Hobbs-Zilbermints Gambit rnbqkbnr/pppppp2/7p/6p1/5P2/5N2/PPPPP1PP/RNBQKB1R w KQkq - f2f4 h7h6 g1f3 g7g5
A02 Bird Opening: Horsefly Defense rnbqkb1r/pppppppp/7n/8/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - f2f4 g8h6
A02 Bird Opening: Lasker Gambit rnbqkbnr/pppp2pp/5p2/4P3/8/8/PPPPP1PP/RNBQKBNR w KQkq - f2f4 e7e5 f4e5 f7f6
A02 Bird Opening: Mujannah rnbqkb1r/pppppppp/5n2/8/2P2P2/8/PP1PP1PP/RNBQKBNR b KQkq - f2f4 g8f6 c2c4
A02 Bird Opening: Myers Defense rnbqkbnr/p1pppppp/8/1p6/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - f2f4 b7b5
A02 Bird Opening: Platz Gambit rnbqkb1r/ppppnppp/8/4P3/8/8/PPPPP1PP/RNBQKBNR w KQkq - f2f4 e7e5 f4e5 g8e7
A02 Bird Opening rnbqkb1r/pppppppp/5n2/8/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - f2f4 g8f6
A02 Bird Opening rnbqkbnr/pppppppp/8/8/5P2/8/PPPPP1PP/RNBQKBNR b KQkq - f2f4
A02 Bird Opening: Schlechter Gambit r1bqkbnr/pppp1ppp/2n5/4P3/8/8/PPPPP1PP/RNBQKBNR w KQkq - f2f4 e7e5 f4e5 b8c6
A02 Bird Opening: Siegener Gambit rnbqkbnr/pp1p1ppp/8/2p5/3p1P2/2P2N2/PP2P1PP/RNBQKB1R b KQkq - f2f4 e7e5 d2d4 e5d4 g1f3 c7c5 c2c3
A02 Bird Opening: Swiss Gambit rnbqkb1r/ppppp1pp/5n2/8/4pPP1/2N5/PPPP3P/R1BQKBNR b KQkq - f2f4 f7f5 e2e4 f5e4 b1c3 g8f6 g2g4
A02 Bird Opening: Wagner-Zwitersch Gambit rnbqkbnr/ppppp1pp/8/5p2/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - f2f4 f7f5 e2e4
A02 System: Double Duck Formation rnbqkbnr/ppp1p1pp/8/3p1p2/3P1P2/8/PPP1P1PP/RNBQKBNR w KQkq - f2f4 f7f5 d2d4 d7d5
A03 Bird Opening: Dutch Variation, Dudweiler Gambit rnbqkbnr/ppp1pppp/8/3p4/5PP1/8/PPPPP2P/RNBQKBNR b KQkq - f2f4 d7d5 g2g4
A03 Bird Opening: Dutch Variation rnbqkbnr/ppp1pppp/8/3p4/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - f2f4 d7d5
A03 Bird Opening: Lasker Variation rnbqkb1r/pp2pppp/5n2/2pp4/5P2/4PN2/PPPP2PP/RNBQKB1R w KQkq - f2f4 d7d5 g1f3 g8f6 e2e3 c7c5
A03 Bird Opening: Sturm Gambit rnbqkbnr/ppp1pppp/8/3p4/2P2P2/8/PP1PP1PP/RNBQKBNR b KQkq - f2f4 d7d5 c2c4
A03 Bird Opening: Thomas Gambit rnbqkb1r/pp2pppp/5n2/2p5/3p1P2/1P2PN2/PBPP2PP/RN1QKB1R b KQkq - f2f4 d7d5 b2b3 g8f6 c1b2 d5d4 g1f3 c7c5 e2e3
A03 Bird Opening: Williams Gambit rnbqkb1r/ppp1pppp/5n2/8/4pP2/2N5/PPPPQ1PP/R1B1KBNR b KQkq - f2f4 d7d5 e2e4 d5e4 b1c3 g8f6 d1e2
A03 Bird Opening: Williams Gambit rnbqkbnr/ppp1pppp/8/3p4/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - f2f4 d7d5 e2e4
A03 Bird Opening: Williams-Zilbermints Gambit rnbqkb1r/ppp1pppp/5n2/8/4pP2/2N5/PPPPN1PP/R1BQKB1R b KQkq - f2f4 d7d5 e2e4 d5e4 b1c3 g8f6 g1e2
A04 Colle System: Rhamphorhynchus Variation rnb1k1nr/pp1pppbp/6p1/q1P5/8/4PN2/PPP2PPP/RNBQKB1R w KQkq - g1f3 c7c5 e2e3 g7g6 d2d4 f8g7 d4c5 d8a5
A04 Modern Defense: Semi-Averbakh Variation, Polish Variation rnb1k1nr/pp1pppbp/1q4p1/2p5/2PPP3/5N2/PP3PPP/RNBQKB1R w KQkq - g1f3 c7c5 c2c4 g7g6 d2d4 f8g7 e2e4 d8b6
A04 Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted rnb1k1nr/pp2ppbp/3p2p1/q1P5/2P1P3/5N2/PP3PPP/RNBQKB1R w KQkq - g1f3 g7g6 d2d4 f8g7 e2e4 d7d6 c2c4 c7c5 d4c5 d8a5
A04 Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation rnb1k1nr/pp1pppbp/6p1/q1p5/2PPP3/5N2/PP3PPP/RNBQKB1R w KQkq - g1f3 c7c5 c2c4 g7g6 d2d4 f8g7 e2e4 d8a5
A04 Réti Opening rnbqkbnr/pppppppp/8/8/8/5N2/PPPPPPPP/RNBQKB1R b KQkq - g1f3
A04 Zukertort Defense: Drunken Cavalry Variation r1bqkb1r/pppppppp/n6n/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - g1f3 b8a6 e2e4 g8h6
A04 Zukertort Opening: Arctic Defense, Drunken Knight Variation rnbqkb1r/pppppnpp/5p2/8/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - g1f3 f7f6 e2e4 g8h6 d2d4 h6f7
A04 Zukertort Opening: Arctic Defense rnbqkbnr/ppppp1pp/5p2/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 f7f6
A04 Zukertort Opening: Basman Defense rnbqkbnr/ppppppp1/7p/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 h7h6
A04 Zukertort Opening: Black Mustang Defense r1bqkbnr/pppppppp/2n5/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 b8c6
A04 Zukertort Opening: Dutch Variation rnbqkbnr/ppppp1pp/8/5p2/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 f7f5
A04 Zukertort Opening: Herrstrom Gambit rnbqkbnr/pppppp1p/8/6p1/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 g7g5
A04 Zukertort Opening: Kingside Fianchetto rnbqkbnr/pppppp1p/6p1/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 g7g6
A04 Zukertort Opening: Lisitsyn Gambit Deferred rnbqkb1r/ppppp1pp/5n2/5p2/4P3/3P1N2/PPP2PPP/RNBQKB1R b KQkq - g1f3 f7f5 d2d3 g8f6 e2e4
A04 Zukertort Opening: Lisitsyn Gambit rnbqkbnr/ppppp1pp/8/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - g1f3 f7f5 e2e4
A04 Zukertort Opening: Pirc Invitation rnbqkbnr/ppp1pppp/3p4/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 d7d6
A04 Zukertort Opening: Polish Defense rnbqkbnr/p1pppppp/8/1p6/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 b7b5
A04 Zukertort Opening: Queen's Gambit Invitation rnbqkbnr/pppp1ppp/4p3/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 e7e6
A04 Zukertort Opening: Queenside Fianchetto Variation rnbqkbnr/p1pppppp/1p6/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 b7b6
A04 Zukertort Opening: Ross Gambit rnbqkbnr/pppp1ppp/8/4p3/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 e7e5
A04 Zukertort Opening: Shabalov Gambit rnbqkbnr/3p1ppp/p3p3/1pp5/2P5/2N2NP1/PP1PPP1P/R1BQKB1R w KQkq - g1f3 e7e6 c2c4 a7a6 b1c3 c7c5 g2g3 b7b5
A04 Zukertort Opening: Sicilian Invitation rnbqkbnr/pp1ppppp/8/2p5/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 c7c5
A04 Zukertort Opening: Slav Invitation rnbqkbnr/pp1ppppp/2p5/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 c7c6
A04 Zukertort Opening: Speelsmet Gambit rnbqkbnr/pp1ppppp/8/8/3p4/4PN2/PPP2PPP/RNBQKB1R b KQkq - g1f3 c7c5 d2d4 c5d4 e2e3
A04 Zukertort Opening: St. George Defense rnbqkbnr/1ppppppp/p7/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 a7a6
A04 Zukertort Opening: The Walrus r1bqkbnr/ppp2ppp/2p5/8/8/8/PPPPPPPP/RNBQKB1R w KQkq - g1f3 e7e5 f3e5 b8c6 e5c6 d7c6
A04 Zukertort Opening: Vos Gambit rnbqkbnr/ppp2ppp/3p4/4p3/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - g1f3 d7d6 d2d4 e7e5
A04 Zukertort Opening: Wade Defense rn1qkbnr/ppp1pppp/3p4/8/4P1b1/5N2/PPPP1PPP/RNBQKB1R w KQkq - g1f3 d7d6 e2e4 c8g4
A04 Zukertort Opening: Ware Defense rnbqkbnr/1ppppppp/8/p7/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 a7a5
A05 King's Indian Attack rnbqkb1r/ppp1pppp/5n2/3p4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - g1f3 g8f6 g2g3 d7d5
A05 King's Indian Attack: Smyslov Variation rnbqkb1r/pppppp1p/5np1/8/1P6/5NP1/P1PPPP1P/RNBQKB1R b KQkq - g1f3 g8f6 g2g3 g7g6 b2b4
A05 King's Indian Attack: Spassky Variation rnbqkb1r/p1pppppp/5n2/1p6/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - g1f3 g8f6 g2g3 b7b5
A05 King's Indian Attack: Symmetrical Defense rnbqkb1r/pppppp1p/5np1/8/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - g1f3 g8f6 g2g3 g7g6
A05 King's Indian Attack: Wahls Defense rnbq1rk1/ppp1ppbp/5np1/3p4/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w - - g1f3 g8f6 g2g3 g7g6 f1g2 f8g7 e1g1 e8g8 d2d3 d7d5
A05 Polish Opening: Zukertort System rnbqkb1r/pppppppp/5n2/8/1P6/5N2/P1PPPPPP/RNBQKB1R b KQkq - g1f3 g8f6 b2b4
A05 Réti Opening rnbqkb1r/pppppppp/5n2/8/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 g8f6
A05 Zukertort Opening: Double Fianchetto Attack rnbq1rk1/ppp1ppbp/3p1np1/8/8/1P3NP1/PBPPPPBP/RN1Q1RK1 b - - g1f3 g8f6 g2g3 g7g6 b2b3 f8g7 c1b2 e8g8 f1g2 d7d6 e1g1
A05 Zukertort Opening: Lemberger Gambit rnbqkb1r/pppppppp/5n2/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - g1f3 g8f6 e2e4
A05 Zukertort Opening: Myers Polish Attack rnbqkb1r/pppppp1p/5np1/8/PP6/5N2/2PPPPPP/RNBQKB1R b KQkq - g1f3 g8f6 a2a4 g7g6 b2b4
A05 Zukertort Opening: Nimzo-Larsen Variation rnbqkb1r/pppppppp/5n2/8/8/1P3N2/P1PPPPPP/RNBQKB1R b KQkq - g1f3 g8f6 b2b3
A05 Zukertort Opening: Quiet System rnbqkb1r/pppppppp/5n2/8/8/4PN2/PPPP1PPP/RNBQKB1R b KQkq - g1f3 g8f6 e2e3
A05 Zukertort Opening r1bqkb1r/pppppppp/2n2n2/8/8/2N2N2/PPPPPPPP/R1BQKB1R w KQkq - g1f3 g8f6 b1c3 b8c6
A06 Nimzo-Larsen Attack: Classical Variation rnbqkbnr/ppp1pppp/8/3p4/8/1P3N2/P1PPPPPP/RNBQKB1R b KQkq - g1f3 d7d5 b2b3
A06 Nimzo-Larsen Attack: Norfolk Gambit rnbqkb1r/pp2pppp/5n2/2pp4/4P3/1P3N2/PBPP1PPP/RN1QKB1R b KQkq - g1f3 d7d5 b2b3 g8f6 c1b2 c7c5 e2e4
A06 Nimzo-Larsen Attack: Norfolk Gambit rnbqkbnr/pp2pppp/8/2pp4/4P3/1P3N2/P1PP1PPP/RNBQKB1R b KQkq - g1f3 d7d5 b2b3 c7c5 e2e4
A06 Réti Opening rnbqkbnr/ppp1pppp/8/3p4/8/5N2/PPPPPPPP/RNBQKB1R w KQkq - g1f3 d7d5
A06 Zukertort Opening: Ampel Variation rnbqkbnr/ppp1pppp/8/3p4/8/5N2/PPPPPPPP/RNBQKBR1 b Qkq - g1f3 d7d5 h1g1
A06 Zukertort Opening: Old Indian Attack rnbqkbnr/ppp1pppp/8/3p4/8/3P1N2/PPP1PPPP/RNBQKB1R b KQkq - g1f3 d7d5 d2d3
A06 Zukertort Opening: Pachman Gambit rnbqkbnr/pp2pppp/8/2p5/2p5/1P2PN2/P2P1PPP/RNBQKB1R b KQkq - g1f3 d7d5 e2e3 c7c5 c2c4 d5c4 b2b3
A06 Zukertort Opening: Regina-Nu Gambit rnbqkbnr/pp2pppp/8/2p5/2p5/1PN2N2/P2PPPPP/R1BQKB1R b KQkq - g1f3 d7d5 b2b3 c7c5 c2c4 d5c4 b1c3
A06 Zukertort Opening: Santasiere's Folly rnbqkbnr/ppp1pppp/8/3p4/1P6/5N2/P1PPPPPP/RNBQKB1R b KQkq - b2b4 d7d5 g1f3
A06 Zukertort Opening: Tennison Gambit rnbqkbnr/ppp1pppp/8/3p4/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - e2e4 d7d5 g1f3
A06 Zukertort Opening: The Potato rnbqkbnr/ppp1pppp/8/3p4/P7/5N2/1PPPPPPP/RNBQKB1R b KQkq - g1f3 d7d5 a2a4
A07 English Opening: Anglo-Indian Defense, Grünfeld Formation rnbqkb1r/ppp1pp1p/5np1/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - g2g3 d7d5 g1f3 g7g6 c2c4 g8f6
A07 Hungarian Opening: Wiedenhagen-Beta Gambit rnbqkbnr/ppp1pp1p/8/3p2p1/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - g2g3 d7d5 g1f3 g7g5
A07 King's Indian Attack: Double Fianchetto rnbqkbnr/ppp1pp1p/6p1/3p4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - g1f3 d7d5 g2g3 g7g6
A07 King's Indian Attack: Keres Variation r2qkbnr/pppnpppp/8/3p4/6b1/5NP1/PPPPPPBP/RNBQK2R w KQkq - g1f3 d7d5 g2g3 c8g4 f1g2 b8d7
A07 King's Indian Attack: Keres Variation rn1qkbnr/ppp1pppp/8/3p4/6b1/5NP1/PPPPPP1P/RNBQKB1R w KQkq - g1f3 d7d5 g2g3 c8g4
A07 King's Indian Attack: Omega-Delta Gambit rnbqkbnr/ppp2ppp/8/3pp3/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - g1f3 d7d5 g2g3 e7e5
A07 King's Indian Attack: Pachman System rnbqk2r/ppp1npbp/6p1/3pp3/8/3P1NP1/PPP1PPBP/RNBQ1RK1 w kq - g1f3 d7d5 g2g3 g7g6 f1g2 f8g7 e1g1 e7e5 d2d3 g8e7
A07 King's Indian Attack rnbqkbnr/ppp1pppp/8/3p4/8/5NP1/PPPPPP1P/RNBQKB1R b KQkq - g1f3 d7d5 g2g3
A07 King's Indian Attack: Sicilian Variation rnbqkbnr/pp2pppp/8/2pp4/8/5NP1/PPPPPP1P/RNBQKB1R w KQkq - g1f3 d7d5 g2g3 c7c5
A07 King's Indian Attack: Yugoslav Variation rn1qkb1r/pp2pppp/2p2n2/3p4/6b1/5NP1/PPPPPPBP/RNBQ1RK1 w kq - g1f3 g8f6 g2g3 d7d5 f1g2 c7c6 e1g1 c8g4
A08 King's Indian Attack: French Variation r1bqkbnr/pp2pppp/2n5/2pp4/8/5NP1/PPPPPPBP/RNBQK2R w KQkq - g1f3 d7d5 g2g3 c7c5 f1g2 b8c6
A08 King's Indian Attack: Sicilian Variation r1bq1rk1/pp2bppp/2n1pn2/2pp4/4P3/3P1NP1/PPPN1PBP/R1BQR1K1 b - - e2e4 e7e6 d2d3 d7d5 b1d2 g8f6 g1f3 c7c5 g2g3 b8c6 f1g2 f8e7 e1g1 e8g8 f1e1
A08 King's Indian Attack: Sicilian Variation rnbqkbnr/pp2pppp/8/2pp4/8/5NP1/PPPPPPBP/RNBQK2R b KQkq - g1f3 d7d5 g2g3 c7c5 f1g2
A08 Zukertort Opening: Grünfeld Reversed r1bqkbnr/pp3ppp/2n1p3/2pp4/3P4/5NP1/PPP1PPBP/RNBQ1RK1 b kq - g1f3 d7d5 g2g3 c7c5 f1g2 b8c6 d2d4 e7e6 e1g1
A09 Réti Opening: Advance Variation, Michel Gambit rnbqkbnr/pp2pppp/8/2p5/1PPp4/5N2/P2PPPPP/RNBQKB1R w KQkq - g1f3 d7d5 c2c4 d5d4 b2b4 c7c5
A09 Réti Opening: Advance Variation rnbqkbnr/ppp1pppp/8/8/2Pp4/5N2/PP1PPPPP/RNBQKB1R w KQkq - g1f3 d7d5 c2c4 d5d4
A09 Réti Opening: Penguin Variation rnbqkbnr/ppp1pppp/8/8/2Pp4/5N2/PP1PPPPP/RNBQKBR1 b Qkq - g1f3 d7d5 c2c4 d5d4 h1g1
A09 Réti Opening: Réti Accepted rnbqkbnr/ppp1pppp/8/8/2p5/5N2/PP1PPPPP/RNBQKB1R w KQkq - g1f3 d7d5 c2c4 d5c4
A09 Réti Opening: Réti Gambit, Keres Variation rn1qkbnr/ppp1pppp/4b3/8/2p5/4PN2/PP1P1PPP/RNBQKB1R w KQkq - g1f3 d7d5 c2c4 d5c4 e2e3 c8e6
A09 Réti Opening: Reversed Blumenfeld Gambit rnbqkbnr/pp2pppp/8/2p5/1PPp4/4PN2/P2P1PPP/RNBQKB1R b KQkq - g1f3 d7d5 c2c4 d5d4 e2e3 c7c5 b2b4
A09 Réti Opening rnbqkbnr/ppp1pppp/8/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq - g1f3 d7d5 c2c4
A09 Réti Opening: Zilbermints Gambit rnbqkbnr/p1p1pppp/8/1p1p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - g1f3 d7d5 c2c4 b7b5
A10 Dutch Defense: Krause Variation r1bqkb1r/ppp1p1pp/2np1n2/5p2/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - c2c4 f7f5 b1c3 g8f6 g1f3 b8c6 d2d4 d7d6
A10 English Opening: Adorjan Defense rnbqkbnr/pppp1p1p/6p1/4p3/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq - c2c4 g7g6 e2e4 e7e5
A10 English Opening: Anglo-Dutch Defense, Hickmann Gambit rnbqkbnr/ppppp1pp/8/5p2/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq - c2c4 f7f5 e2e4
A10 English Opening: Anglo-Dutch Defense rnbqkbnr/ppppp1pp/8/5p2/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - c2c4 f7f5
A10 English Opening: Anglo-Dutch Variation, Chabanon Gambit rnbqkbnr/ppp1p1pp/3p4/5p2/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq - c2c4 f7f5 g1f3 d7d6 e2e4
A10 English Opening: Anglo-Dutch Variation, Ferenc Gambit rnbqkb1r/ppppp1pp/5n2/5p2/2P1P3/2N5/PP1P1PPP/R1BQKBNR b KQkq - c2c4 f7f5 b1c3 g8f6 e2e4
A10 English Opening: Anglo-Lithuanian Variation r1bqkbnr/pppppppp/2n5/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - c2c4 b8c6
A10 English Opening: Anglo-Scandinavian Defense, Löhn Gambit rnbqkbnr/ppp2ppp/4p3/3P4/8/8/PP1PPPPP/RNBQKBNR w KQkq - c2c4 d7d5 c4d5 e7e6
A10 English Opening: Anglo-Scandinavian Defense, Malvinas Variation rnb1kbnr/ppp1pppp/8/q7/8/2N5/PP1PPPPP/R1BQKBNR w KQkq - c2c4 d7d5 c4d5 d8d5 b1c3 d5a5
A10 English Opening: Anglo-Scandinavian Defense rnbqkbnr/ppp1pppp/8/3p4/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - c2c4 d7d5
A10 English Opening: Anglo-Scandinavian Defense, Schulz Gambit rnbqkb1r/ppp1pppp/5n2/3P4/8/8/PP1PPPPP/RNBQKBNR w KQkq - c2c4 d7d5 c4d5 g8f6
A10 English Opening: Great Snake Variation rnbqkbnr/pppppp1p/6p1/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - c2c4 g7g6
A10 English Opening: Jaenisch Gambit rnbqkbnr/p1pppppp/8/1p6/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - c2c4 b7b5
A10 English Opening: King's English Variation, Botvinnik System, Prickly Pawn Pass System rnbq1rk1/1p3pbp/p1pp1np1/4p3/2P1P3/2NP2P1/PP2NPBP/R1BQ1RK1 w - - c2c4 g7g6 b1c3 f8g7 g2g3 g8f6 f1g2 e8g8 e2e4 d7d6 g1e2 e7e5 e1g1 c7c6 d2d3 a7a6
A10 English Opening: Myers Variation rnbqk1nr/ppppppbp/8/6p1/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - c2c4 g7g5 d2d4 f8g7
A10 English Opening: Porcupine Variation rnbqkb1r/ppppp1pp/5n2/8/2P1p1P1/2N5/PP1P1P1P/R1BQKBNR b KQkq - c2c4 f7f5 b1c3 g8f6 e2e4 f5e4 g2g4
A10 English Opening rnbqkbnr/pppppppp/8/8/2P5/8/PP1PPPPP/RNBQKBNR b KQkq - c2c4
A10 English Opening: Wade Gambit rnbqkbnr/ppppp1pp/8/5p2/2P3P1/8/PP1PPP1P/RNBQKBNR b KQkq - c2c4 f7f5 g2g4
A10 English Opening: Zilbermints Gambit rnbqkbnr/pppp1p1p/8/4p1p1/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - c2c4 g7g5 d2d4 e7e5
A10 King's Indian Defense: Semi-Classical Variation, Exchange Variation r1bq1rk1/pppn1pbp/5np1/4p3/2P5/2N1PN2/PP2BPPP/R1BQ1RK1 w - - c2c4 g7g6 b1c3 f8g7 e2e3 g8f6 d2d4 e8g8 g1f3 d7d6 f1e2 b8d7 e1g1 e7e5 d4e5 d6e5
A10 Modern Defense: Averbakh Variation, Pseudo-Sämisch rnbqk2r/ppp1ppbp/3p1np1/8/2PPP3/4BP2/PP4PP/RN1QKBNR b KQkq - c2c4 g7g6 e2e4 f8g7 d2d4 d7d6 c1e3 g8f6 f2f3
A10 Modern Defense: Neo-Modern Defense rnbqk1nr/pppp1pbp/6p1/4p3/2PPP3/8/PP3PPP/RNBQKBNR w KQkq - c2c4 g7g6 e2e4 f8g7 d2d4 e7e5
A11 English Opening: Caro-Kann Defensive System rnbqkbnr/pp1ppppp/2p5/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - c2c4 c7c6
A12 Réti Opening: Anglo-Slav Variation, Bled Variation rnbqkb1r/pp2pp1p/2p2np1/3p4/2P5/1P3N2/PB1PPPPP/RN1QKB1R w KQkq - g1f3 d7d5 b2b3 g8f6 c1b2 g7g6 c2c4 c7c6
A12 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation rn1qkbnr/pp2pppp/2p5/3p4/2P3b1/1P3N2/P2PPPPP/RNBQKB1R w KQkq - g1f3 d7d5 c2c4 c7c6 b2b3 c8g4
A12 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation rnbqkb1r/pp2pppp/2p2n2/3p4/2P5/1P3N2/PB1PPPPP/RN1QKB1R b KQkq - g1f3 g8f6 c2c4 c7c6 b2b3 d7d5 c1b2
A12 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation rnbqkbnr/pp2pppp/2p5/3p4/2P5/1P3N2/P2PPPPP/RNBQKB1R b KQkq - g1f3 d7d5 c2c4 c7c6 b2b3
A12 Réti Opening: Anglo-Slav Variation, Capablanca Variation rn1qkb1r/pp2pppp/2p2n2/3p4/2P3b1/1P3N2/PB1PPPPP/RN1QKB1R w KQkq - c2c4 g8f6 g1f3 c7c6 b2b3 d7d5 c1b2 c8g4
A12 Réti Opening: Anglo-Slav Variation, London Defensive System rn1qkb1r/pp2pppp/2p2n2/3p1b2/2P5/1P3NP1/P2PPP1P/RNBQKB1R w KQkq - c2c4 g8f6 g2g3 c7c6 g1f3 d7d5 b2b3 c8f5
A12 Réti Opening: Anglo-Slav Variation, New York System rn1qkb1r/pp2pppp/2p2n2/3p1b2/2P5/1P3N2/PB1PPPPP/RN1QKB1R w KQkq - g1f3 g8f6 c2c4 c7c6 b2b3 d7d5 c1b2 c8f5
A12 Réti Opening: Anglo-Slav Variation, Torre System rn1qkb1r/pp2pppp/2p2n2/3p4/2P3b1/1P3NP1/P2PPP1P/RNBQKB1R w KQkq - c2c4 g8f6 g2g3 c7c6 g1f3 d7d5 b2b3 c8g4
A13 English Opening: Agincourt Defense, Bogoljubov Defense rnbqk2r/ppp2ppp/3bpn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8d6
A13 English Opening: Agincourt Defense, Catalan Defense Accepted rnbqkb1r/ppp2ppp/4pn2/8/2p5/5NP1/PP1PPPBP/RNBQK2R w KQkq - g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 d5c4
A13 English Opening: Agincourt Defense, Catalan Defense rn1qkbnr/pbp2ppp/1p2p3/3p4/2P5/5NP1/PP1PPPBP/RNBQ1RK1 b kq - g1f3 d7d5 c2c4 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1
A13 English Opening: Agincourt Defense, Catalan Defense rnbqkbnr/pp3ppp/4p3/2pp4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - g1f3 d7d5 c2c4 e7e6 g2g3 c7c5
A13 English Opening: Agincourt Defense, Catalan Defense, Semi-Slav Defense rnbqkb1r/pp3ppp/2p1pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 c7c6
A13 English Opening: Agincourt Defense, Kurajica Defense rnbqkbnr/pp3ppp/2p1p3/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - g1f3 d7d5 c2c4 e7e6 g2g3 c7c6
A13 English Opening: Agincourt Defense rnbqkbnr/ppp2ppp/4p3/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - c2c4 e7e6 g1f3 d7d5
A13 English Opening: Agincourt Defense rnbqkbnr/pppp1ppp/4p3/8/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq - c2c4 e7e6 g1f3
A13 English Opening: Agincourt Defense rnbqkbnr/pppp1ppp/4p3/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - c2c4 e7e6
A13 English Opening: Agincourt Defense, Tarrasch Defense r1bqk2r/pp2bppp/2n1pn2/2pp4/2P5/1P3NP1/P2PPPBP/RNBQ1RK1 w kq - g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 b2b3 c7c5 f1g2 b8c6 e1g1 f8e7
A13 English Opening: Agincourt Defense, Wimpy System rnbqkb1r/pp3ppp/4pn2/2pp4/2P5/1P2PN2/PB1P1PPP/RN1QKB1R b KQkq - g1f3 g8f6 c2c4 e7e6 b2b3 d7d5 c1b2 c7c5 e2e3
A13 English Opening: Neo-Catalan Declined rnbqk2r/ppp1bppp/4pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7
A13 English Opening: Neo-Catalan rnbqkb1r/ppp2ppp/4pn2/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - g1f3 g8f6 c2c4 e7e6 g2g3 d7d5
A13 English Opening: Romanishin Gambit rnbqkb1r/2pp1ppp/p3pn2/1p6/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - g1f3 g8f6 c2c4 e7e6 g2g3 a7a6 f1g2 b7b5
A13 Horwitz Defense: Zilbermints Gambit rnbqkbnr/pppp1ppp/8/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - c2c4 e7e6 d2d4 e6e5
A14 English Opening: Agincourt Defense, Keres Defense r1bqk2r/pp2bppp/2n1p3/2pn4/8/2N2NP1/PP1PPPBP/R1BQ1RK1 w kq - c2c4 c7c5 g1f3 g8f6 b1c3 e7e6 g2g3 d7d5 c4d5 f6d5 f1g2 b8c6 e1g1 f8e7
A14 English Opening: Agincourt Defense, Neo-Catalan Declined rnbqk2r/ppp1bppp/4pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQ1RK1 b kq - g1f3 g8f6 c2c4 e7e6 g2g3 d7d5 f1g2 f8e7 e1g1
A14 Réti Opening: Anglo-Slav Variation, Bogoljubov Variation, Stonewall Line rnbq1rk1/pp2bppp/2p1pn2/3p4/2P5/1P3NP1/PB1PPPBP/RN1Q1RK1 b - - g1f3 d7d5 c2c4 e7e6 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 b2b3 c7c6 c1b2
A15 English Opening: Anglo-Indian Defense, Anti-Anti-Grünfeld rnbqk2r/ppppppbp/5np1/8/2P1P3/2N2N2/PP1P1PPP/R1BQKB1R b KQkq - g1f3 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4
A15 English Opening: Anglo-Indian Defense, King's Indian Formation, Double Fianchetto rn1qkb1r/pbpppp1p/1p3np1/8/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - g1f3 g8f6 c2c4 b7b6 g2g3 c8b7 f1g2 g7g6
A15 English Opening: Anglo-Indian Defense, King's Indian Formation rnbqkb1r/pppppp1p/5np1/8/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - g1f3 g8f6 c2c4 g7g6
A15 English Opening: Anglo-Indian Defense, King's Knight Variation rnbqkb1r/pppppppp/5n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq - g1f3 g8f6 c2c4
A15 English Opening: Anglo-Indian Defense, Old Indian Formation rnbqkb1r/ppp1pppp/3p1n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - g1f3 g8f6 c2c4 d7d6
A15 English Opening: Anglo-Indian Defense, Queen's Indian Formation rn1qkb1r/pbpp1ppp/1p2pn2/8/2P5/5NP1/PP1PPPBP/RNBQK2R w KQkq - g1f3 g8f6 c2c4 e7e6 g2g3 b7b6 f1g2 c8b7
A15 English Opening: Anglo-Indian Defense, Queen's Indian Formation rnbqkb1r/p1pppppp/1p3n2/8/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - g1f3 g8f6 c2c4 b7b6
A15 English Opening: Anglo-Indian Defense rnbqkb1r/pppppppp/5n2/8/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - c2c4 g8f6
A15 English Opening: Anglo-Indian Defense, Romanishin Variation rnbqkb1r/1ppp1ppp/p3pn2/8/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - g1f3 g8f6 c2c4 e7e6 g2g3 a7a6
A15 English Opening: Anglo-Indian Defense, Scandinavian Defense, Exchange Variation rnbqkb1r/ppp1pppp/8/3n4/8/5N2/PP1PPPPP/RNBQKB1R w KQkq - g1f3 g8f6 c2c4 d7d5 c4d5 f6d5
A15 English Opening: Anglo-Indian Defense, Scandinavian Defense rnbqkb1r/ppp1pppp/5n2/3p4/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - g1f3 g8f6 c2c4 d7d5
A15 English Opening: Anglo-Indian Defense, Slav Formation rnbqkb1r/pp1ppp1p/2p2np1/8/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - g1f3 g8f6 c2c4 g7g6 g2g3 c7c6
A15 English Orangutan rnbqkb1r/pppppppp/5n2/8/1PP5/8/P2PPPPP/RNBQKBNR b KQkq - c2c4 g8f6 b2b4
A15 Polish Opening: King's Indian Variation, Sokolsky Attack rnbq1rk1/ppp1ppbp/3p1np1/8/1PPP4/4PN2/PB3PPP/RN1QKB1R b KQ - g1f3 g8f6 c2c4 g7g6 b2b4 f8g7 c1b2 e8g8 e2e3 d7d6 d2d4
A16 English Opening: Anglo-Grünfeld Defense: Korchnoi Variation rnbqk2r/ppp2pbp/6p1/3np3/8/2N2NP1/PP1PPPBP/R1BQK2R w KQkq - g1f3 g8f6 c2c4 g7g6 b1c3 d7d5 c4d5 f6d5 g2g3 f8g7 f1g2 e7e5
A16 English Opening: Anglo-Grünfeld Defense rnbqkb1r/ppp1pppp/5n2/3p4/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq - c2c4 g8f6 b1c3 d7d5
A16 English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation rnbqkb1r/ppp1pp1p/1n4p1/8/8/2N3P1/PP1PPPBP/R1BQK1NR w KQkq - c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g2g3 g7g6 f1g2 d5b6
A16 English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation rnbqkb1r/ppp1pp1p/6p1/8/8/2n3P1/PP1PPPBP/R1BQK1NR w KQkq - c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g2g3 g7g6 f1g2 d5c3
A16 English Opening: Anglo-Indian Defense, Anglo-Grünfeld Variation rnbqkb1r/ppp1pppp/8/3n4/8/2N2N2/PP1PPPPP/R1BQKB1R b KQkq - c2c4 g8f6 b1c3 d7d5 c4d5 f6d5 g1f3
A16 English Opening: Anglo-Indian Defense, Queen's Knight Variation rnbqkb1r/pppppppp/5n2/8/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq - c2c4 g8f6 b1c3
A17 English Opening: Anglo-Indian Defense, Hedgehog System rnbqkb1r/pppp1ppp/4pn2/8/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq - c2c4 g8f6 b1c3 e7e6
A17 English Opening: Anglo-Indian Defense, Nimzo-English rnbqk2r/pppp1ppp/4pn2/8/1bP5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - g1f3 g8f6 c2c4 e7e6 b1c3 f8b4
A17 English Opening: Anglo-Indian Defense, Queen's Indian Formation rnbqkb1r/p1pp1ppp/1p2pn2/8/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - c2c4 g8f6 b1c3 e7e6 g1f3 b7b6
A17 English Opening: Anglo-Indian Defense, Queen's Indian Variation rn1qkb1r/pbpp1ppp/1p2pn2/8/2P1P3/2NB1N2/PP1P1PPP/R1BQK2R b KQkq - c2c4 g8f6 b1c3 e7e6 g1f3 b7b6 e2e4 c8b7 f1d3
A17 English Opening: Anglo-Indian Defense, Zvjaginsev-Krasenkow Attack rnbqk2r/pppp1ppp/4pn2/8/1bP3P1/2N2N2/PP1PPP1P/R1BQKB1R b KQkq - c2c4 g8f6 b1c3 e7e6 g1f3 f8b4 g2g4
A18 English Opening: Mikenas-Carls Variation r1bqkb1r/pppp1ppp/2n1pn2/8/2P1P3/2N5/PP1P1PPP/R1BQKBNR w KQkq - c2c4 g8f6 b1c3 e7e6 e2e4 b8c6
A18 English Opening: Mikenas-Carls Variation rnbqkb1r/ppp2ppp/4pn2/3pP3/2P5/2N5/PP1P1PPP/R1BQKBNR b KQkq - c2c4 g8f6 b1c3 e7e6 e2e4 d7d5 e4e5
A18 English Opening: Mikenas-Carls Variation rnbqkb1r/pppp1ppp/4pn2/8/2P1P3/2N5/PP1P1PPP/R1BQKBNR b KQkq - c2c4 g8f6 b1c3 e7e6 e2e4
A19 English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit rnbqkbnr/pp1p1ppp/4p3/2p1P3/2P5/2N5/PP1P1PPP/R1BQKBNR w KQkq - c2c4 g8f6 b1c3 e7e6 e2e4 c7c5 e4e5 f6g8
A19 English Opening: Mikenas-Carls, Sicilian rnbqkb1r/pp1p1ppp/4pn2/2p5/2P1P3/2N5/PP1P1PPP/R1BQKBNR w KQkq - c2c4 g8f6 b1c3 e7e6 e2e4 c7c5
A20 English Opening: Drill Variation rnbqkbnr/pppp1pp1/8/4p2p/2P5/6P1/PP1PPP1P/RNBQKBNR w KQkq - c2c4 e7e5 g2g3 h7h5
A20 English Opening: King's English Variation, Nimzowitsch-Flohr Variation rnbqkbnr/pppp1ppp/8/8/2P1p3/5N2/PP1PPPPP/RNBQKB1R w KQkq - c2c4 e7e5 g1f3 e5e4
A20 English Opening: King's English Variation, Nimzowitsch Variation rnbqkbnr/pppp1ppp/8/4p3/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq - c2c4 e7e5 g1f3
A20 English Opening: King's English Variation rnbqkbnr/pppp1ppp/8/4p3/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - c2c4 e7e5
A20 English Openings: King's English, Kahiko-Hula Gambit rnbqkb1r/pppp1ppp/5n2/8/2P2p2/4PN2/PP1P2PP/RNBQKB1R b KQkq - c2c4 e7e5 e2e3 g8f6 f2f4 e5f4 g1f3
A21 English Opening: King's English Variation, Keres Defense rnbqkbnr/pp3ppp/2pp4/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq - c2c4 e7e5 b1c3 d7d6 g2g3 c7c6
A21 English Opening: King's English Variation, Kramnik-Shirov Counterattack rnbqk1nr/pppp1ppp/8/4p3/1bP5/2N5/PP1PPPPP/R1BQKBNR w KQkq - c2c4 e7e5 b1c3 f8b4
A21 English Opening: King's English Variation, Reversed Sicilian rnbqkbnr/pppp1ppp/8/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq - c2c4 e7e5 b1c3
A21 English Opening: King's English Variation rnbqkbnr/ppp2ppp/3p4/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R b KQkq - c2c4 e7e5 b1c3 d7d6 g1f3
A21 English Opening: King's English Variation, Smyslov Defense rn1qkbnr/ppp2ppp/3p4/4p3/2P3b1/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - c2c4 e7e5 b1c3 d7d6 g1f3 c8g4
A21 English Opening: King's English Variation, Troger Defense r2qkbnr/ppp2ppp/2npb3/4p3/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq - c2c4 e7e5 b1c3 b8c6 g2g3 d7d6 f1g2 c8e6
A22 English Opening: Carls-Bremen System rnbqkb1r/pppp1ppp/5n2/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq - c2c4 e7e5 b1c3 g8f6 g2g3
A22 English Opening: King's English, Erbenheimer Gambit rnbqkb1r/pppp1ppp/8/6N1/2P1p1n1/2N5/PP1PPPPP/R1BQKB1R w KQkq - c2c4 e7e5 b1c3 g8f6 g1f3 e5e4 f3g5 f6g4
A22 English Opening: King's English, Mazedonisch rnbqkb1r/pppp1ppp/5n2/4p3/2P2P2/2N5/PP1PP1PP/R1BQKBNR b KQkq - c2c4 e7e5 b1c3 g8f6 f2f4
A22 English Opening: King's English Variation, Bellon Gambit rnbqkb1r/p1pp1ppp/5n2/1p4N1/2P1p3/2N5/PP1PPPPP/R1BQKB1R w KQkq - c2c4 e7e5 b1c3 g8f6 g1f3 e5e4 f3g5 b7b5
A22 English Opening: King's English Variation, Two Knights Variation, Reversed Dragon rnbqkb1r/ppp2ppp/5n2/3pp3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq - c2c4 e7e5 b1c3 g8f6 g2g3 d7d5
A22 English Opening: King's English Variation, Two Knights Variation rnbqkb1r/pppp1ppp/5n2/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq - c2c4 e7e5 b1c3 g8f6
A22 English Opening: King's English Variation, Two Knights Variation, Smyslov System rnbqk2r/pppp1ppp/5n2/4p3/1bP5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq - c2c4 e7e5 b1c3 g8f6 g2g3 f8b4
A23 English Opening: King's English Variation, Two Knights Variation, Keres Variation rnbqkb1r/pp1p1ppp/2p2n2/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq - c2c4 e7e5 b1c3 g8f6 g2g3 c7c6
A24 English Opening: King's English Variation, Two Knights Variation, Fianchetto Line rnbqkb1r/pppp1p1p/5np1/4p3/2P5/2N3P1/PP1PPP1P/R1BQKBNR w KQkq - c2c4 e7e5 b1c3 g8f6 g2g3 g7g6
A25 English Opening: Closed, Taimanov Variation r1bqk2r/ppp2pbp/2np2pn/4p3/2P5/2N1P1P1/PP1PNPBP/R1BQK2R w KQkq - c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e2e3 d7d6 g1e2 g8h6
A25 English Opening: Closed, Taimanov Variation r1bqk2r/pppp1pbp/2n3pn/4p3/2P5/2N3P1/PP1PPPBP/1RBQK1NR w Kkq - c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 a1b1 g8h6 f1g2 f8g7
A25 English Opening: King's English Variation, Bremen-Hort Variation r2qk1nr/ppp2pbp/2npb1p1/4p3/2P5/2N1P1P1/PP1PNPBP/R1BQK2R w KQkq - c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e2e3 d7d6 g1e2 c8e6
A25 English Opening: King's English Variation, Closed System r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2NP2P1/PP2PPBP/R1BQK1NR b KQkq - c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3
A25 English Opening: King's English Variation, Hungarian Attack r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2N3P1/PP1PPPBP/1RBQK1NR b Kkq - c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 a1b1
A25 English Opening: King's English Variation, Reversed Closed Sicilian r1bqkbnr/pppp1ppp/2n5/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq - c2c4 e7e5 b1c3 b8c6
A25 English Opening: King's English Variation, Taimanov Variation r1bqk1nr/pppp1pbp/2n3p1/4p3/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq - c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7
A26 English Opening: King's English Variation, Botvinnik System r1bqk1nr/ppp2pbp/2np2p1/4p3/2P1P3/2NP2P1/PP3PBP/R1BQK1NR b KQkq - c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6 e2e4
A26 English Opening: King's English Variation, Closed System, Full Symmetry r1bqk1nr/ppp2pbp/2np2p1/4p3/2P5/2NP2P1/PP2PPBP/R1BQK1NR w KQkq - c2c4 e7e5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 d2d3 d7d6
A27 English Opening: King's English Variation, Three Knights System r1bqkbnr/pppp1ppp/2n5/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R b KQkq - c2c4 e7e5 b1c3 b8c6 g1f3
A28 English Opening: Four Knights System, Nimzowitsch Variation r1bqkb1r/pppp1ppp/2n2n2/4p3/2P1P3/2N2N2/PP1P1PPP/R1BQKB1R b KQkq - c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e4
A28 English Opening: King's English Variation, Four Knights Variation, Bradley Beach Variation r1bqkb1r/pppp1ppp/2n2n2/8/2PPp3/2N2N2/PP2PPPP/R1BQKB1R w KQkq - c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 d2d4 e5e4
A28 English Opening: King's English Variation, Four Knights Variation, Flexible Line r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2NP1N2/PP2PPPP/R1BQKB1R b KQkq - c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 d2d3
A28 English Opening: King's English Variation, Four Knights Variation, Korchnoi Line r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/P1N2N2/1P1PPPPP/R1BQKB1R b KQkq - c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 a2a3
A28 English Opening: King's English Variation, Four Knights Variation, Quiet Line r1bqk2r/pppp1ppp/2n2n2/4p3/2P5/2b1PN2/PPQP1PPP/R1B1KB1R w KQkq - c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e3 f8b4 d1c2 b4c3
A28 English Opening: King's English Variation, Four Knights Variation, Quiet Line r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N1PN2/PP1P1PPP/R1BQKB1R b KQkq - c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e3
A28 English Opening: King's English Variation, Four Knights Variation, Quiet Line r1bqr1k1/pppp1ppp/2n2n2/3NpQ2/1bP5/4PN2/PP1P1PPP/R1B1KB1R b KQ - c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 e2e3 f8b4 d1c2 e8g8 c3d5 f8e8 c2f5
A28 English Opening: King's English Variation, Four Knights Variation r1bqk2r/pppp1pp1/5n1p/4n3/2PN3B/2P5/P3PPPP/R2QKB1R w KQkq - c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 d2d4 e5d4 f3d4 f8b4 c1g5 h7h6 g5h4 b4c3 b2c3 c6e5
A28 English Opening: King's English Variation, Four Knights Variation r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - c2c4 e7e5 b1c3 g8f6 g1f3 b8c6
A29 English Opening: King's English Variation, Four Knights Variation, Fianchetto Line r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N2NP1/PP1PPP1P/R1BQKB1R b KQkq - c2c4 e7e5 b1c3 g8f6 g1f3 b8c6 g2g3
A30 English Opening: Symmetrical, Hedgehog, Flexible Formation r2qk2r/1b1nbppp/pp1ppn2/8/2PQ4/1PN2NP1/P3PPBP/R1BR2K1 w kq - g1f3 c7c5 c2c4 g8f6 b1c3 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1 f8e7 d2d4 c5d4 d1d4 d7d6 f1d1 a7a6 b2b3 b8d7
A30 English Opening: Symmetrical Variation, Hedgehog Defense rn1qk2r/pb1pbppp/1p2pn2/2p5/2P5/2N2NP1/PP1PPPBP/R1BQ1RK1 w kq - g1f3 g8f6 c2c4 c7c5 b1c3 e7e6 g2g3 b7b6 f1g2 c8b7 e1g1 f8e7
A30 English Opening: Symmetrical Variation, Napolitano Gambit rnbqkb1r/pp1ppppp/5n2/2p5/1PP5/5N2/P2PPPPP/RNBQKB1R b KQkq - c2c4 c7c5 g1f3 g8f6 b2b4
A30 English Opening: Symmetrical Variation rnbqkbnr/pp1ppppp/8/2p5/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - c2c4 c7c5
A30 English Opening: Wing Gambit rnbqkbnr/pp1ppppp/8/2p5/1PP5/8/P2PPPPP/RNBQKBNR b KQkq - c2c4 c7c5 b2b4
A31 English Opening: Symmetrical Variation, Anti-Benoni Variation rnbqkb1r/pp1ppppp/5n2/2p5/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq - d2d4 g8f6 c2c4 c7c5 g1f3
A32 English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense rnbqkb1r/pp1p1ppp/4pn2/8/2PN4/8/PP2PPPP/RNBQKB1R w KQkq - d2d4 g8f6 c2c4 c7c5 g1f3 c5d4 f3d4 e7e6
A33 English Opening: Symmetrical Variation, Anti-Benoni Variation, Geller Variation r1b1kb1r/pp1p1ppp/1qn1pn2/8/2PN4/2N3P1/PP2PP1P/R1BQKB1R w KQkq - g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 d2d4 c5d4 f3d4 e7e6 g2g3 d8b6
A33 English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense r1bqkb1r/pp1p1ppp/2n1pn2/8/2PN4/2N5/PP2PPPP/R1BQKB1R w KQkq - g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 d2d4 c5d4 f3d4 e7e6
A34 English Opening: Symmetrical Variation, Fianchetto Variation rnbqkb1r/pp1ppppp/5n2/2p5/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq - c2c4 g8f6 b1c3 c7c5 g2g3
A34 English Opening: Symmetrical Variation, Normal Variation rnbqkbnr/pp1ppppp/8/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq - c2c4 c7c5 b1c3
A34 English Opening: Symmetrical Variation, Rubinstein Variation rnbqkb1r/ppn1pppp/8/2p5/8/2N3P1/PP1PPPBP/R1BQK1NR w KQkq - c2c4 g8f6 b1c3 c7c5 g2g3 d7d5 c4d5 f6d5 f1g2 d5c7
A34 English Opening: Symmetrical Variation, Three Knights Variation rnbqkb1r/pp2pppp/8/2pn4/8/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - g1f3 g8f6 c2c4 c7c5 b1c3 d7d5 c4d5 f6d5
A35 English Opening: Symmetrical Variation, Four Knights Variation r1bqkb1r/pp1ppppp/2n2n2/2p5/2P5/2N2N2/PP1PPPPP/R1BQKB1R w KQkq - g1f3 g8f6 c2c4 c7c5 b1c3 b8c6
A35 English Opening: Symmetrical Variation, Two Knights Variation r1bqkbnr/pp1ppppp/2n5/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR w KQkq - c2c4 c7c5 b1c3 b8c6
A36 English Opening: Symmetrical Variation, Botvinnik System r1bqk1nr/pp1pppbp/2n3p1/2p5/2P1P3/2N3P1/PP1P1PBP/R1BQK1NR b KQkq - e2e4 c7c5 c2c4 b8c6 b1c3 g7g6 g2g3 f8g7 f1g2
A36 English Opening: Symmetrical Variation, Botvinnik System Reversed r1bqk1nr/pp1p1pbp/2n3p1/2p1p3/2P5/2N1P1P1/PP1P1PBP/R1BQK1NR w KQkq - c2c4 c7c5 b1c3 g7g6 g2g3 f8g7 f1g2 b8c6 e2e3 e7e5
A36 English Opening: Symmetrical Variation, Fianchetto Variation r1bqkbnr/pp1ppppp/2n5/2p5/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq - c2c4 c7c5 b1c3 b8c6 g2g3
A36 English Opening: Symmetrical Variation, Symmetrical Variation r1bqk1nr/pp1pppbp/2n3p1/2p5/2P5/2N3P1/PP1PPPBP/R1BQK1NR w KQkq - c2c4 c7c5 g2g3 g7g6 f1g2 f8g7 b1c3 b8c6
A37 English Opening: Symmetrical Variation, Botvinnik System Reversed r1bqk1nr/pp1p1pbp/2n3p1/2p1p3/2P5/2N2NP1/PP1PPPBP/R1BQK2R w KQkq - g1f3 c7c5 c2c4 b8c6 b1c3 e7e5 g2g3 g7g6 f1g2 f8g7
A37 English Opening: Symmetrical Variation, Two Knights Line r1bqk1nr/pp1pppbp/2n3p1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQK2R b KQkq - c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3
A38 English Opening: Symmetrical Variation, Double Fianchetto r1bq1rk1/pp1pppbp/2n2np1/2p5/2P5/1PN2NP1/P2PPPBP/R1BQ1RK1 b - - c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 g1f3 g8f6 e1g1 e8g8 b2b3
A38 English Opening: Symmetrical Variation, Duchamp Variation r1bq1rk1/pp1pppbp/2n2np1/2p5/2P5/2NP1NP1/PP2PPBP/R1BQ1RK1 b - - g1f3 g8f6 g2g3 g7g6 f1g2 f8g7 e1g1 e8g8 c2c4 c7c5 b1c3 b8c6 d2d3
A38 English Opening: Symmetrical Variation, Full Symmetry Line r1bqk2r/pp1pppbp/2n2np1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQK2R w KQkq - g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7
A39 English Opening: Symmetrical Variation, Mecking Variation r1bq1rk1/pp1pppbp/2n2np1/2p5/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - - g1f3 g8f6 c2c4 c7c5 b1c3 b8c6 g2g3 g7g6 f1g2 f8g7 e1g1 e8g8 d2d4
A40 Australian Defense r1bqkbnr/pppppppp/n7/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 b8a6
A40 Benoni Defense: Franco-Sicilian Hybrid rnbqk2r/pp2npbp/3p2p1/2pP4/4P3/2N2N2/PP3PPP/R1BQKB1R w KQkq - d2d4 e7e6 c2c4 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 g1f3 g8e7
A40 Borg Defense: Borg Gambit rnbqkbnr/pppppp1p/8/6p1/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 g7g5
A40 Colle System: Pterodactyl Variation rnb1k1nr/pp1pppbp/6p1/q1p5/3P4/3BPN2/PPP2PPP/RNBQK2R w KQkq - d2d4 g7g6 g1f3 f8g7 e2e3 c7c5 f1d3 d8a5
A40 Colle System: Siroccopteryx Variation rnb1k1nr/pp1pppbp/6p1/q7/3N4/3BP3/PPP2PPP/RNBQK2R w KQkq - d2d4 g7g6 g1f3 f8g7 e2e3 c7c5 f1d3 c5d4 f3d4 d8a5
A40 Dutch Defense: Senechaud Gambit rnbqkbnr/pppp2pp/4p3/5p2/3P1BP1/8/PPP1PP1P/RN1QKBNR b KQkq - d2d4 e7e6 c1f4 f7f5 g2g4
A40 Dutch Defense: Stonewall Variation, Modern Variation rnbqk2r/pp4pp/2pbpn2/3p1p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w kq - d2d4 e7e6 g1f3 f7f5 g2g3 g8f6 f1g2 d7d5 e1g1 f8d6 c2c4 c7c6
A40 English Defense: Blumenfeld-Hiva Gambit rnbqkbnr/p2p2pp/4p3/1PpP1p2/4P3/8/PP3PPP/RNBQKBNR w KQkq - d2d4 b7b6 c2c4 c7c5 d4d5 e7e6 e2e4 b6b5 c4b5 f7f5
A40 English Defense: Eastbourne Gambit rn1qkbnr/pbpp1ppp/1p6/4p3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - d2d4 b7b6 c2c4 c8b7 b1c3 e7e5
A40 English Defense: Hartlaub Gambit Accepted rn1qkb1r/pbpp2pp/1p2pn2/5P2/2PP4/2N5/PP3PPP/R1BQKBNR w KQkq - c2c4 e7e6 d2d4 b7b6 b1c3 c8b7 e2e4 f7f5 e4f5 g8f6
A40 English Defense: Hartlaub Gambit Declined rn1qkbnr/pbpp2pp/1p2p3/3P1p2/2P1P3/2N5/PP3PPP/R1BQKBNR b KQkq - c2c4 e7e6 d2d4 b7b6 b1c3 c8b7 e2e4 f7f5 d4d5
A40 English Defense: Perrin Variation r2qkbnr/pbpp1ppp/1pn1p3/8/2PPP3/3B4/PP3PPP/RNBQK1NR w KQkq - d2d4 e7e6 c2c4 b7b6 e2e4 c8b7 f1d3 b8c6
A40 English Defense: Poli Gambit rn1qkb1r/pbpp2pp/1p2p2n/5P2/2PP4/5P2/PP4PP/RNBQKBNR w KQkq - d2d4 e7e6 c2c4 b7b6 e2e4 c8b7 f2f3 f7f5 e4f5 g8h6
A40 English Defense rnbqkbnr/p1pp1ppp/1p2p3/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 e7e6 c2c4 b7b6
A40 English Defense rnbqkbnr/p1pppppp/1p6/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 b7b6
A40 Englund Gambit Complex Declined, Diemer Counterattack rnb1k1nr/pppp1ppp/8/2bPp3/4P2q/8/PPP2PPP/RNBQKBNR w KQkq - d2d4 e7e5 d4d5 f8c5 e2e4 d8h4
A40 Englund Gambit Complex Declined rnbqkbnr/pppp1ppp/8/3Pp3/8/8/PPP1PPPP/RNBQKBNR b KQkq - d2d4 e7e5 d4d5
A40 Englund Gambit Complex: Englund Gambit r1b1kbnr/ppppqppp/2n5/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 e7e5 d4e5 b8c6 g1f3 d8e7
A40 Englund Gambit Complex: Felbecker Gambit r1bqk1nr/pppp1ppp/2n5/2b1P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 e7e5 d4e5 b8c6 g1f3 f8c5
A40 Englund Gambit Complex: Hartlaub-Charlick Gambit rnbqkbnr/ppp2ppp/3p4/4P3/8/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 e7e5 d4e5 d7d6
A40 Englund Gambit Complex: Mosquito Gambit rnb1kbnr/pppp1ppp/8/4P3/7q/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 e7e5 d4e5 d8h4
A40 Englund Gambit Complex: Soller Gambit Deferred r1bqkbnr/pppp2pp/2n2p2/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 e7e5 d4e5 b8c6 g1f3 f7f6
A40 Englund Gambit Complex: Soller Gambit rnbqkbnr/pppp2pp/5p2/4P3/8/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 e7e5 d4e5 f7f6
A40 Englund Gambit Complex: Stockholm Variation r1b1kbnr/ppppqppp/2n5/3QP3/8/5N2/PPP1PPPP/RNB1KB1R b KQkq - d2d4 e7e5 d4e5 b8c6 g1f3 d8e7 d1d5
A40 Englund Gambit Complex: Zilbermints Gambit r1bqkb1r/ppppnppp/2n5/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 e7e5 d4e5 b8c6 g1f3 g8e7
A40 Englund Gambit Complex: Zilbermints Gambit r1bqkbnr/pppp1pp1/2n4p/4P3/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 e7e5 d4e5 b8c6 g1f3 h7h6
A40 Englund Gambit Declined, Reversed Alekhine rnbqkbnr/pppp1ppp/8/4p3/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq - d2d4 e7e5 g1f3
A40 Englund Gambit Declined, Reversed Brooklyn rnbqkbnr/pppp1ppp/8/8/3Pp3/8/PPP1PPPP/RNBQKBNR b KQkq - d2d4 e7e5 g1f3 e5e4 f3g1
A40 Englund Gambit Declined, Reversed Krebs rnbqkbnr/pppp1ppp/8/8/3Pp3/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 e7e5 g1f3 e5e4
A40 Englund Gambit Declined, Reversed Mokele Mbembe rnbqkbnr/pppp1ppp/8/4N3/3Pp3/8/PPP1PPPP/RNBQKB1R b KQkq - d2d4 e7e5 g1f3 e5e4 f3e5
A40 Englund Gambit rnbqkbnr/pppp1ppp/8/4p3/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 e7e5
A40 Horwitz Defense rnbqkbnr/pppp1ppp/4p3/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 e7e6
A40 Kangaroo Defense: Keres Defense, Transpositional Variation rnbqk1nr/pppp1ppp/4p3/8/1bPP4/2N5/PP2PPPP/R1BQKBNR b KQkq - d2d4 e7e6 c2c4 f8b4 b1c3
A40 Kangaroo Defense rnbqk1nr/pppp1ppp/4p3/8/1bPP4/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 e7e6 c2c4 f8b4
A40 Mikenas Defense: Cannstatter Variation r1bqkbnr/pppp1ppp/8/3Pp3/2Pn4/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 b8c6 c2c4 e7e5 d4d5 c6d4
A40 Mikenas Defense: Lithuanian Variation r1bqkbnr/ppppnppp/8/3Pp3/2P5/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 b8c6 c2c4 e7e5 d4d5 c6e7
A40 Mikenas Defense: Pozarek Gambit r1bqkbnr/pppp1ppp/8/8/2n5/2N5/PP2PPPP/R1BQKBNR w KQkq - d2d4 b8c6 c2c4 e7e5 d4e5 c6e5 b1c3 e5c4
A40 Mikenas Defense r1bqkbnr/pppppppp/2n5/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 b8c6
A40 Modern Defense: Beefeater Variation rnbqk1nr/pp1pp2p/6p1/2pP1p2/2P5/2P5/P3PPPP/R1BQKBNR w KQkq - d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 f7f5
A40 Modern Defense: Lizard Defense, Pirc-Diemer Gambit rnbqkb1r/pppppp1p/5np1/7P/3P4/8/PPP1PPP1/RNBQKBNR b KQkq - d2d4 g7g6 h2h4 g8f6 h4h5
A40 Modern Defense rnbqkbnr/pppppp1p/6p1/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 g7g6
A40 Montevideo Defense rnbqkbnr/pppppppp/8/3P4/8/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 b8c6 d4d5 c6b8
A40 Polish Defense rnbqkbnr/p1pppppp/8/1p6/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 b7b5
A40 Polish Defense: Spassky Gambit Accepted rn1qkbnr/pbpppppp/8/1B6/3PP3/8/PPP2PPP/RNBQK1NR b KQkq - d2d4 b7b5 e2e4 c8b7 f1b5
A40 Pterodactyl Defense: Central, Benoni Beefeater Pterodactyl rnb1k1nr/pp2pp1p/3p2p1/q1pP4/2P1P3/2P5/P4PPP/R1BQKBNR w KQkq - d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 d7d6 e2e4 g7c3 b2c3 d8a5
A40 Pterodactyl Defense: Central, Benoni Pterodactyl rnb1k1nr/pp1pppbp/6p1/q1pP4/2P1P3/8/PP3PPP/RNBQKBNR w KQkq - d2d4 g7g6 c2c4 f8g7 e2e4 c7c5 d4d5 d8a5
A40 Pterodactyl Defense: Fianchetto, Queen Benoni Pterodactyl rnb1k1nr/pp1pppbp/6p1/q1pP4/2P5/2N5/PP2PPPP/R1BQKBNR w KQkq - d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 d8a5
A40 Pterodactyl Defense: Fianchetto, Queen Pteranodon rnb1k1nr/pp1ppp1p/6p1/q1pP4/2P5/2P5/P3PPPP/R1BQKBNR w KQkq - d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 d8a5
A40 Pterodactyl Defense: Fianchetto, Queen Pterodactyl rnb1k1nr/pp1pppbp/6p1/q1p5/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq - d2d4 g7g6 g1f3 f8g7 g2g3 c7c5 f1g2 d8a5
A40 Pterodactyl Defense: Queen Pterodactyl, Quiet Line rnbqk1nr/pp1pppbp/6p1/2p5/2PP4/2N1P3/PP3PPP/R1BQKBNR b KQkq - d2d4 g7g6 c2c4 f8g7 b1c3 c7c5 e2e3
A40 Queen's Pawn Game: Anglo-Slav Opening rnbqkbnr/pp2pppp/2pp4/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 c7c6 c2c4 d7d6
A40 Queen's Pawn Game: Englund Gambit r1b1kb1r/ppppq1pp/2n2n2/3Q4/8/5N2/PPP1PPPP/RNB1KB1R w KQkq - d2d4 e7e5 d4e5 b8c6 g1f3 d8e7 d1d5 f7f6 e5f6 g8f6
A40 Queen's Pawn Game: London System, Pterodactyl Variation rnb1k1nr/pp1pppbp/6p1/q7/3P1B2/5N2/PP2PPPP/RN1QKB1R w KQkq - d2d4 g7g6 g1f3 f8g7 c1f4 c7c5 c2c3 c5d4 c3d4 d8a5
A40 Queen's Pawn Game: Veresov Attack, Fianchetto Defense rnbqk1nr/ppp1ppbp/6p1/3p4/3P4/2N2N2/PPP1PPPP/R1BQKB1R w KQkq - d2d4 g7g6 g1f3 f8g7 b1c3 d7d5
A40 Queen's Pawn rnbqkbnr/pppppppp/8/8/3P4/8/PPP1PPPP/RNBQKBNR b KQkq - d2d4
A40 Slav Indian: Kudischewitsch Gambit rnbqkb1r/p2ppppp/2p2n2/1p6/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - d2d4 c7c6 g1f3 g8f6 c2c4 b7b5
A40 St. George Defense: Polish Variation rn1qkbnr/1bpp1ppp/p3p3/1p6/3PP3/3B1N2/PPP2PPP/RNBQK2R w KQkq - d2d4 b7b5 e2e4 a7a6 g1f3 c8b7 f1d3 e7e6
A40 Zaire Defense rnbqkbnr/pppppppp/8/3PP3/8/8/PPP2PPP/RNBQKBNR w KQkq - d2d4 b8c6 d4d5 c6b8 e2e4 g8f6 e4e5 f6g8
A40 Zukertort Defense: Kingside Variation rnbqkb1r/pppppp1p/6pn/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 g7g6 g1f3 g8h6
A41 English Rat: Pounds Gambit rn1qkbnr/ppp2ppp/3pb3/4P3/2P5/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 d7d6 c2c4 e7e5 d4e5 c8e6
A41 King's Pawn Game: Maróczy Defense rnbqkbnr/ppp2ppp/3p4/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - d2d4 d7d6 e2e4 e7e5
A41 Modern Defense rnbqk1nr/ppp1ppbp/3p2p1/8/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - d2d4 g7g6 c2c4 f8g7 b1c3 d7d6
A41 Old Indian Defense rnbqkbnr/ppp1pppp/3p4/8/2PP4/8/PP2PPPP/RNBQKBNR b KQkq - d2d4 d7d6 c2c4
A41 Queen's Pawn rnbqkbnr/ppp1pppp/3p4/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 d7d6
A41 Rat Defense: English Rat, Lisbon Gambit r1bqkbnr/ppp2ppp/2np4/4P3/2P5/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 d7d6 c2c4 e7e5 d4e5 b8c6
A41 Rat Defense: English Rat rnbqkbnr/ppp2ppp/3p4/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 d7d6 c2c4 e7e5
A41 Robatsch Defense rn1qk1nr/ppp1ppbp/3p2p1/8/2PPP1b1/5N2/PP3PPP/RNBQKB1R w KQkq - d2d4 d7d6 g1f3 g7g6 c2c4 f8g7 e2e4 c8g4
A41 Wade Defense rn1qkbnr/ppp1pppp/3p4/8/3P2b1/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 d7d6 g1f3 c8g4
A41 Zukertort Opening: Wade Defense, Chigorin Plan 1r1qkbnr/pppnpppp/3p4/8/2PP2b1/1Q3N2/PP2PPPP/RNB1KB1R w KQk - d2d4 d7d6 g1f3 c8g4 c2c4 b8d7 d1b3 a8b8
A42 Modern Defense: Averbakh System rnbqk1nr/ppp1ppbp/3p2p1/8/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq - d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 e2e4
A42 Modern Defense: Kotov Variation r1bqk1nr/ppp1ppbp/2np2p1/8/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq - d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 e2e4 b8c6
A42 Modern Defense: Randspringer Variation rnbqk1nr/ppp1p1bp/3p2p1/5p2/2PPP3/2N5/PP3PPP/R1BQKBNR w KQkq - d2d4 g7g6 c2c4 f8g7 b1c3 d7d6 e2e4 f7f5
A42 Pterodactyl Defense: Central, Bogolubovia rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N5/PP2NPPP/R1BQKB1R w KQkq - d2d4 g7g6 c2c4 f8g7 e2e4 d7d6 b1c3 c7c5 g1e2 d8a5
A42 Pterodactyl Defense rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N2N2/PP3PPP/R1BQKB1R w KQkq - g1f3 c7c5 c2c4 g7g6 d2d4 f8g7 e2e4 d8a5 b1c3 d7d6
A43 Benoni Defense: Benoni Gambit Accepted rnbqkbnr/pp1ppppp/8/2P5/8/8/PPP1PPPP/RNBQKBNR b KQkq - d2d4 c7c5 d4c5
A43 Benoni Defense: Benoni Gambit, Schlenker Defense r1bqkbnr/pp1ppppp/n7/2P5/8/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 c7c5 d4c5 b8a6
A43 Benoni Defense: Benoni-Indian Defense, Kingside Move Order rnbqkb1r/pp1ppppp/5n2/2pP4/8/5N2/PPP1PPPP/RNBQKB1R b KQkq - d2d4 g8f6 g1f3 c7c5 d4d5
A43 Benoni Defense: Benoni-Indian Defense rnbqkb1r/pp1ppppp/5n2/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 c7c5 d4d5 g8f6
A43 Benoni Defense: Benoni-Staunton Gambit rnbqkbnr/pp1pp1pp/8/2pP1p2/4P3/8/PPP2PPP/RNBQKBNR b KQkq - d2d4 c7c5 d4d5 f7f5 e2e4
A43 Benoni Defense: Cormorant Gambit rnbqkbnr/p2ppppp/1p6/2P5/8/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 c7c5 d4c5 b7b6
A43 Benoni Defense: Hawk Variation rnbqkb1r/pp1ppppp/5n2/3P4/2p5/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 g8f6 g1f3 c7c5 d4d5 c5c4
A43 Benoni Defense: Old Benoni rnbqkbnr/pp2pppp/3p4/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 c7c5 d4d5 d7d6
A43 Benoni Defense: Old Benoni, Schmid Variation rnbqkbnr/pp2pp1p/3p2p1/2pP4/8/2N5/PPP1PPPP/R1BQKBNR w KQkq - d2d4 c7c5 d4d5 d7d6 b1c3 g7g6
A43 Benoni Defense: Snail Variation r1bqkbnr/pp1ppppp/n7/2pP4/8/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 c7c5 d4d5 b8a6
A43 Benoni Defense: Woozle rnb1kb1r/pp1ppppp/5n2/q1pP4/8/2N5/PPP1PPPP/R1BQKBNR w KQkq - d2d4 c7c5 d4d5 g8f6 b1c3 d8a5
A43 Benoni Defense: Zilbermints-Benoni Gambit rnbqkbnr/pp1ppppp/8/2p5/1P1P4/8/P1P1PPPP/RNBQKBNR b KQkq - d2d4 c7c5 b2b4
A43 Benoni Defense: Zilbermints-Benoni Gambit rnbqkbnr/pp1ppppp/8/8/1P1p4/5N2/P1P1PPPP/RNBQKB1R b KQkq - d2d4 c7c5 g1f3 c5d4 b2b4
A43 Benoni Defense: Zilbermints-Benoni Gambit, Tamarkin Countergambit rnbqkbnr/pp1p1ppp/8/4p3/1P1p4/5N2/P1P1PPPP/RNBQKB1R w KQkq - d2d4 c7c5 g1f3 c5d4 b2b4 e7e5
A43 Franco-Benoni Defense rnbqkbnr/pp1p1ppp/4p3/2pP4/4P3/8/PPP2PPP/RNBQKBNR b KQkq - e2e4 e7e6 d2d4 c7c5 d4d5
A43 Indian Game: Pseudo-Benko rnbqkb1r/p2ppppp/5n2/1ppP4/8/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 g8f6 g1f3 c7c5 d4d5 b7b5
A43 Old Benoni Defense: Mujannah Formation rnbqkbnr/pp1pp1pp/8/2pP1p2/8/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 c7c5 d4d5 f7f5
A43 Old Benoni Defense rnbqkbnr/pp1ppppp/8/2p5/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 c7c5
A43 Old Benoni Defense rnbqkbnr/pp1ppppp/8/2pP4/8/8/PPP1PPPP/RNBQKBNR b KQkq - d2d4 c7c5 d4d5
A43 Queen's Pawn Game: Liedmann Gambit rnbqkbnr/pp1ppppp/8/8/2Pp4/4P3/PP3PPP/RNBQKBNR b KQkq - d2d4 c7c5 c2c4 c5d4 e2e3
A44 Old Benoni Defense rnbqkbnr/pp1p1ppp/8/2pPp3/8/8/PPP1PPPP/RNBQKBNR w KQkq e6 d2d4 c7c5 d4d5 e7e5
A44 Semi-Benoni rnbqkbnr/pp3ppp/3p4/2pPp3/4P3/8/PPP2PPP/RNBQKBNR w KQkq - d2d4 c7c5 d4d5 e7e5 e2e4 d7d6
A45 Amazon Attack: Siberian Attack rnbqkb1r/ppp1pppp/5n2/3p4/3P4/2NQ4/PPP1PPPP/R1B1KBNR b KQkq - d2d4 g8f6 b1c3 d7d5 d1d3
A45 Blackmar-Diemer Gambit Declined, O'Kelly Defense rnbqkb1r/pp2pppp/2p2n2/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq - d2d4 g8f6 f2f3 d7d5 e2e4 d5e4 b1c3 c7c6
A45 Blackmar-Diemer Gambit Declined, Weinsbach Declination rnbqkb1r/ppp2ppp/4pn2/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR w KQkq - d2d4 g8f6 b1c3 d7d5 f2f3 e7e6 e2e4 d5e4
A45 Bronstein Gambit rnbqkb1r/pppppppp/5n2/8/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq - d2d4 g8f6 g2g4
A45 Canard Opening rnbqkb1r/pppppppp/5n2/8/3P1P2/8/PPP1P1PP/RNBQKBNR b KQkq - d2d4 g8f6 f2f4
A45 Indian Game: Gedult Attack, Gedult Attack rnbqkb1r/ppp1pppp/5n2/3p4/3P2P1/5P2/PPP1P2P/RNBQKBNR b KQkq - d2d4 g8f6 f2f3 d7d5 g2g4
A45 Indian Game: Gibbins-Wiedenhagen Gambit Accepted rnbqkb1r/pppppppp/8/8/3P2n1/8/PPP1PP1P/RNBQKBNR w KQkq - d2d4 g8f6 g2g4 f6g4
A45 Indian Game: Gibbins-Wiedenhagen Gambit, Maltese Falcon rnbqkb1r/pppppppp/5n2/8/3PP3/5P2/PPP4P/RNBQKBNR b KQkq - d2d4 g8f6 g2g4 f6g4 f2f3 g4f6 e2e4
A45 Indian Game: Gibbins-Wiedenhagen Gambit, Oshima Defense rnbqkb1r/pppp1ppp/5n2/4p3/3P2P1/8/PPP1PP1P/RNBQKBNR w KQkq - d2d4 g8f6 g2g4 e7e5
A45 Indian Game: Gibbins-Wiedenhagen Gambit, Stummer Gambit rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/2N5/PPP1BP1P/R1BQK1NR b KQkq - d2d4 g8f6 g2g4 f6g4 e2e4 d7d6 f1e2 g4f6 b1c3
A45 Indian Game: Lazard Gambit rnbqkb1r/pppp1ppp/5n2/4p3/3P4/8/PPPNPPPP/R1BQKBNR w KQkq - d2d4 g8f6 b1d2 e7e5
A45 Indian Game: Maddigan Gambit rnbqkb1r/pppp1ppp/5n2/4p3/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - d2d4 g8f6 b1c3 e7e5
A45 Indian Game: Omega Gambit, Arafat Gambit rnbqkb1r/pppppppp/5n2/6B1/3P4/3B4/PPP2PPP/RN1QK1NR b KQkq - d2d4 g8f6 e2e4 f6e4 f1d3 e4f6 c1g5
A45 Indian Game: Omega Gambit rnbqkb1r/pppppppp/5n2/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - d2d4 g8f6 e2e4
A45 Indian Game: Paleface Attack, Blackmar-Diemer Gambit Deferred rnbqkb1r/ppp1pppp/5n2/3p4/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq - d2d4 g8f6 f2f3 d7d5 e2e4
A45 Indian Game: Pawn Push Variation rnbqkb1r/pppppppp/5n2/3P4/8/8/PPP1PPPP/RNBQKBNR b KQkq - d2d4 g8f6 d4d5
A45 Indian Game: Reversed Chigorin Defense rnbqkb1r/pp1ppppp/5n2/2p5/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - d2d4 g8f6 b1c3 c7c5
A45 Indian Game rnbqkb1r/pppppppp/5n2/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 g8f6
A45 Indian Game: Tartakower Attack rnbqkb1r/pppppppp/5n2/8/3P4/6P1/PPP1PP1P/RNBQKBNR b KQkq - d2d4 g8f6 g2g3
A45 Paleface Attack rnbqkb1r/pppppppp/5n2/8/3P4/5P2/PPP1P1PP/RNBQKBNR b KQkq - d2d4 g8f6 f2f3
A45 Queen's Pawn Game: Chigorin Variation rnbqkb1r/ppp1pppp/5n2/3p4/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - d2d4 g8f6 b1c3 d7d5
A45 Queen's Pawn Opening: Veresov, Richter Attack rnbqkb1r/ppp1pppp/5n2/3p4/3P4/2N2P2/PPP1P1PP/R1BQKBNR b KQkq - d2d4 g8f6 f2f3 d7d5 b1c3
A45 Trompowsky Attack: Borg Variation rnbqkb1r/pppppp1p/8/6p1/3PnB2/8/PPP1PPPP/RN1QKBNR w KQkq - d2d4 g8f6 c1g5 f6e4 g5f4 g7g5
A45 Trompowsky Attack: Classical Defense, Big Center Variation rnbqkb1r/pppp1ppp/4pn2/6B1/3PP3/8/PPP2PPP/RN1QKBNR b KQkq - d2d4 g8f6 c1g5 e7e6 e2e4
A45 Trompowsky Attack: Classical Defense rnbqkb1r/pppp1ppp/4pn2/6B1/3P4/8/PPP1PPPP/RN1QKBNR w KQkq - d2d4 g8f6 c1g5 e7e6
A45 Trompowsky Attack: Edge Variation, Hergert Gambit rn1qkb1r/ppp1pppp/5n2/3p1b2/3PP2B/2N2P2/PPP3PP/R2QKBNR b KQkq - d2d4 g8f6 c1g5 f6e4 g5h4 d7d5 f2f3 e4f6 b1c3 c8f5 e2e4
A45 Trompowsky Attack: Edge Variation, Hergert Gambit rnb1kb1r/pp2pppp/2p5/q2p4/3PP2B/2P5/PP1Q1PPP/R3KBNR b KQkq - d2d4 g8f6 c1g5 f6e4 g5h4 c7c6 b1d2 d8a5 c2c3 e4d2 d1d2 d7d5 e2e4
A45 Trompowsky Attack: Edge Variation rnbqkb1r/pppppppp/8/8/3Pn2B/8/PPP1PPPP/RN1QKBNR b KQkq - d2d4 g8f6 c1g5 f6e4 g5h4
A45 Trompowsky Attack: Poisoned Pawn Variation rnb1kb1r/pp1ppppp/1q3n2/2pP2B1/8/2N5/PPP1PPPP/R2QKBNR b KQkq - d2d4 g8f6 c1g5 c7c5 d4d5 d8b6 b1c3
A45 Trompowsky Attack: Raptor Variation, Hergert Gambit rnbqkb1r/pppp1ppp/8/4p1P1/3P4/8/PPP1PPP1/RN1QKBNR w KQkq - d2d4 g8f6 c1g5 f6e4 h2h4 e4g5 h4g5 e7e5
A45 Trompowsky Attack: Raptor Variation rnbqkb1r/pppppppp/8/6B1/3Pn2P/8/PPP1PPP1/RN1QKBNR b KQkq - d2d4 g8f6 c1g5 f6e4 h2h4
A45 Trompowsky Attack rnbqkb1r/pppppppp/5n2/6B1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq - d2d4 g8f6 c1g5
A46 Döry Defense rnbqkb1r/pppppppp/8/8/3Pn3/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 g8f6 g1f3 f6e4
A46 Indian Game: Czech-Indian rnbqkb1r/pp1ppppp/2p2n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 g8f6 g1f3 c7c6
A46 Indian Game: Knights Variation, Alburt-Miles Variation rnbqkb1r/1ppppppp/p4n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 g8f6 g1f3 a7a6
A46 Indian Game: Knights Variation rnbqkb1r/pppppppp/5n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq - d2d4 g8f6 g1f3
A46 Indian Game: London System rnbqkb1r/pppp1ppp/4pn2/8/3P1B2/5N2/PPP1PPPP/RN1QKB1R b KQkq - d2d4 g8f6 g1f3 e7e6 c1f4
A46 Indian Game: Polish Variation rnbqkb1r/p1pppppp/5n2/1p6/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 g8f6 g1f3 b7b5
A46 Indian Game: Spielmann-Indian rnbqkb1r/pp1ppppp/5n2/2p5/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 g8f6 g1f3 c7c5
A46 Indian Game: Wade-Tartakower Defense rnbqkb1r/ppp1pppp/3p1n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 g8f6 g1f3 d7d6
A46 Old Indian: Czech Variation rnbqkb1r/pp2pppp/2pp1n2/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - d2d4 g8f6 g1f3 c7c6 c2c4 d7d6
A46 Old Indian Defense: Tartakower-Indian rn1qkb1r/ppp1pppp/3p1n2/8/2PP2b1/5N2/PP2PPPP/RNBQKB1R w KQkq - d2d4 g8f6 g1f3 d7d6 c2c4 c8g4
A46 Queen's Pawn Game: Torre Attack, Breyer Variation rnb1kb1r/pp3ppp/1q2pn2/2pp2B1/3P4/2P1PN2/PP3PPP/RN1QKB1R w KQkq - d2d4 g8f6 g1f3 e7e6 c1g5 d7d5 e2e3 c7c5 c2c3 d8b6
A46 Queen's Pawn Game: Veresov Attack, Classical Defense rnbqkb1r/ppp2ppp/4pn2/3p2B1/3P4/2N2N2/PPP1PPPP/R2QKB1R b KQkq - d2d4 g8f6 g1f3 e7e6 b1c3 d7d5 c1g5
A46 Torre Attack: Classical Defense, Nimzowitsch Variation rnbqkb1r/pppp1pp1/4pn1p/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R w KQkq - d2d4 g8f6 g1f3 e7e6 c1g5 h7h6
A46 Torre Attack: Classical Defense, Petrosian Gambit rnbqkb1r/p2p1ppp/1p2pn2/2pP2B1/8/4PN2/PPP2PPP/RN1QKB1R b KQkq - d2d4 g8f6 g1f3 e7e6 c1g5 c7c5 e2e3 b7b6 d4d5
A46 Torre Attack rnbqkb1r/pppp1ppp/4pn2/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq - d2d4 g8f6 g1f3 e7e6 c1g5
A46 Torre Attack: Wagner Gambit rnbqkb1r/pp1p1ppp/4pn2/2p3B1/3PP3/5N2/PPP2PPP/RN1QKB1R b KQkq - d2d4 g8f6 g1f3 e7e6 c1g5 c7c5 e2e4
A46 Yusupov-Rubinstein System rnbqkb1r/pppp1ppp/4pn2/8/3P4/4PN2/PPP2PPP/RNBQKB1R b KQkq - d2d4 g8f6 g1f3 e7e6 e2e3
A47 Indian Game: Schnepper Gambit rnbqkb1r/p1pp1ppp/1p3n2/4p3/3P4/2P2N2/PP2PPPP/RNBQKB1R w KQkq - d2d4 g8f6 g1f3 b7b6 c2c3 e7e5
A47 Marienbad System rn1qkb1r/pb1ppppp/1p3n2/2p5/3P4/5NP1/PPP1PPBP/RNBQK2R w KQkq - d2d4 g8f6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5
A47 Queen's Indian Defense: Marienbad System, Berg Variation rn1qkb1r/pb1ppppp/1p3n2/8/2PQ4/5NP1/PP2PPBP/RNB1K2R b KQkq - d2d4 g8f6 g1f3 b7b6 g2g3 c8b7 f1g2 c7c5 c2c4 c5d4 d1d4
A47 Queen's Indian Defense rnbqkb1r/p1pppppp/1p3n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 g8f6 g1f3 b7b6
A48 East Indian Defense rnbqkb1r/pppppp1p/5np1/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 g8f6 g1f3 g7g6
A48 London System rnbqkb1r/pppppp1p/5np1/8/3P1B2/5N2/PPP1PPPP/RN1QKB1R b KQkq - d2d4 g8f6 g1f3 g7g6 c1f4
A48 Queen's Pawn Game: Barry Attack, Grünfeld Variation rnbq1rk1/ppp1ppbp/5np1/3p4/3P1B2/2N1PN2/PPP1BPPP/R2QK2R b KQ - d2d4 g8f6 g1f3 g7g6 b1c3 d7d5 c1f4 f8g7 e2e3 e8g8 f1e2
A48 Queen's Pawn Game: Torre Attack, Grünfeld Variation, Main Line rnbq1rk1/ppp1ppbp/5np1/3p2B1/3P4/4PN2/PPPN1PPP/R2QKB1R w KQ - d2d4 g8f6 g1f3 g7g6 c1g5 f8g7 b1d2 d7d5 e2e3 e8g8
A48 Torre Attack: Fianchetto Defense, Euwe Variation rnbqk2r/pp1pppbp/5np1/2p3B1/3P4/5N2/PPPNPPPP/R2QKB1R w KQkq - d2d4 g8f6 g1f3 g7g6 c1g5 f8g7 b1d2 c7c5
A48 Torre Attack rnbqkb1r/pppppp1p/5np1/6B1/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq - d2d4 g8f6 g1f3 g7g6 c1g5
A49 Indian Game: Przepiorka Variation rnbqkb1r/pppppp1p/5np1/8/3P4/5NP1/PPP1PP1P/RNBQKB1R b KQkq - d2d4 g8f6 g1f3 g7g6 g2g3
A49 King's Indian Defense: Fianchetto Variation, Benjamin Defense rnb2rk1/pp2ppbp/1qpp1np1/8/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - d2d4 g8f6 g1f3 g7g6 g2g3 f8g7 f1g2 e8g8 e1g1 d7d6 c2c4 c7c6 b1c3 d8b6
A50 Indian Game: Medusa Gambit rnbqkb1r/pppppp1p/5n2/6p1/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 g7g5
A50 Indian Game: Normal Variation rnbqkb1r/pppppppp/5n2/8/2PP4/8/PP2PPPP/RNBQKBNR b KQkq - d2d4 g8f6 c2c4
A50 Indian Game: Pyrenees Gambit rnbqkb1r/p1pppppp/5n2/1p6/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 b7b5
A50 Mexican Defense: Horsefly Gambit r1bqkb1r/pppppppp/5n2/3Pn3/2P2P2/8/PP2P1PP/RNBQKBNR b KQkq - d2d4 g8f6 c2c4 b8c6 d4d5 c6e5 f2f4
A50 Mexican Defense r1bqkb1r/pppppppp/2n2n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 b8c6
A50 Queen's Indian Accelerated rnbqkb1r/p1pppppp/1p3n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 b7b6
A50 Slav Indian rnbqkb1r/pp1ppppp/2p2n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 c7c6
A51 Budapest Defense: Fajarowicz Defense, Bonsdorf Variation rnbqkb1r/p1pp1ppp/1p6/4P3/2P1n3/P7/1P2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 e7e5 d4e5 f6e4 a2a3 b7b6
A51 Budapest Defense: Fajarowicz-Steiner Variation rnbqkb1r/pppp1ppp/8/4P3/2P1n3/8/PPQ1PPPP/RNB1KBNR b KQkq - d2d4 g8f6 c2c4 e7e5 d4e5 f6e4 d1c2
A51 Budapest Defense: Fajarowicz Variation rnbqkb1r/pppp1ppp/8/4P3/2P1n3/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 e7e5 d4e5 f6e4
A51 Indian Game: Budapest Defense rnbqkb1r/pppp1ppp/5n2/4p3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 e7e5
A52 Budapest Defense: Adler Variation rnbqkb1r/pppp1ppp/8/4P3/2P3n1/5N2/PP2PPPP/RNBQKB1R b KQkq - d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 g1f3
A52 Budapest Defense: Alekhine Variation, Abonyi Variation rnbqkb1r/pppp1ppp/2n5/8/2P1PP2/8/PP4PP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4 g4e5 f2f4 e5c6
A52 Budapest Defense: Alekhine Variation rnbqkb1r/pppp1ppp/8/4P3/2P1P1n1/8/PP3PPP/RNBQKBNR b KQkq - d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4
A52 Budapest Defense: Alekhine Variation, Tartakower Defense rnbqkb1r/ppp2ppp/3p4/4P3/2P1P1n1/8/PP3PPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 e2e4 d7d6
A52 Budapest Defense rnbqkb1r/pppp1ppp/8/4P3/2P3n1/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 e7e5 d4e5 f6g4
A52 Budapest Defense: Rubinstein Variation rnbqkb1r/pppp1ppp/8/4P3/2P2Bn1/8/PP2PPPP/RN1QKBNR b KQkq - d2d4 g8f6 c2c4 e7e5 d4e5 f6g4 c1f4
A53 Old Indian: Aged Gibbon Gambit rnbqkb1r/ppp1pppp/3p1n2/8/2PP2P1/8/PP2PP1P/RNBQKBNR b KQkq - d2d4 g8f6 c2c4 d7d6 g2g4
A53 Old Indian: Czech Variation rnbqkb1r/pp2pppp/2pp1n2/8/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - d2d4 g8f6 c2c4 d7d6 b1c3 c7c6
A53 Old Indian Defense: Janowski Variation, Fianchetto Variation rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 g1f3
A53 Old Indian Defense: Janowski Variation, Fianchetto Variation rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N3P1/PP2PP1P/R1BQKBNR b KQkq - d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 g2g3
A53 Old Indian Defense: Janowski Variation, Grinberg Gambit rn1qkb1r/ppp1pppp/3p1n2/5b2/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq - d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 e2e4
A53 Old Indian Defense: Janowski Variation, Main Line rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N2P2/PP2P1PP/R1BQKBNR b KQkq - d2d4 g8f6 c2c4 d7d6 b1c3 c8f5 f2f3
A53 Old Indian Defense: Janowski Variation rn1qkb1r/ppp1pppp/3p1n2/5b2/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - d2d4 g8f6 c2c4 d7d6 b1c3 c8f5
A53 Old Indian Defense rnbqkb1r/ppp1pppp/3p1n2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 d7d6
A54 Old Indian Defense: Dus-Khotimirsky Variation r1bqkb1r/pppn1ppp/3p1n2/4p3/2PP4/2NBP3/PP3PPP/R1BQK1NR b KQkq - d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 e2e3 b8d7 f1d3
A54 Old Indian Defense: Two Knights Variation rnbqkb1r/ppp2ppp/3p1n2/4p3/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - d2d4 g8f6 c2c4 d7d6 b1c3 e7e5 g1f3
A54 Old Indian Defense: Ukrainian Variation rnbqkb1r/ppp2ppp/3p1n2/4p3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - d2d4 g8f6 c2c4 d7d6 b1c3 e7e5
A55 Old Indian Defense: Normal Variation r1bqkb1r/pppn1ppp/3p1n2/4p3/2PPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq - d2d4 g8f6 c2c4 d7d6 b1c3 b8d7 e2e4 e7e5 g1f3
A56 Benoni Defense: Czech Benoni Defense rnbqkb1r/pp1p1ppp/5n2/2pPp3/2P5/8/PP2PPPP/RNBQKBNR w KQkq e6 d2d4 g8f6 c2c4 c7c5 d4d5 e7e5
A56 Benoni Defense: Hromádka System rnbqkb1r/pp2pppp/3p1n2/2pP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 d7d6
A56 Benoni Defense: King's Indian System rnbqkb1r/pp3p1p/3p1np1/2pPp3/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 e7e5 b1c3 d7d6 e2e4 g7g6
A56 Benoni Defense rnbqkb1r/pp1ppppp/5n2/2p5/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 c7c5
A56 Benoni Defense: Weenink Variation rnbqkb1r/pp1p1ppp/4pn2/2P5/2P5/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 c7c5 d4c5 e7e6
A56 Grünfeld Defense: Three Knights Variation, Burille Variation, Reversed Tarrasch r1bq1rk1/pp2ppbp/2n2np1/3p4/2PP4/2N2N2/PP2BPPP/R1BQ1RK1 w - - d2d4 g8f6 c2c4 c7c5 e2e3 g7g6 b1c3 f8g7 g1f3 e8g8 f1e2 c5d4 e3d4 d7d5 e1g1 b8c6
A56 Vulture Defense rnbqkb1r/pp1ppppp/8/2pP4/2P1n3/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 f6e4
A57 Benko Gambit Accepted, Dlugy Variation rnbqkb1r/3ppppp/p4n2/1PpP4/8/5P2/PP2P1PP/RNBQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 f2f3
A57 Benko Gambit Accepted, Modern Variation rnbqkb1r/3ppppp/p4n2/1PpP4/8/4P3/PP3PPP/RNBQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 e2e3
A57 Benko Gambit Accepted, Pawn Return Variation rnbqkb1r/3ppppp/pP3n2/2pP4/8/8/PP2PPPP/RNBQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5b6
A57 Benko Gambit Accepted rnbqkb1r/3ppppp/p4n2/1PpP4/8/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6
A57 Benko Gambit Declined, Bishop Attack rnbqkb1r/p2ppppp/5n2/1ppP2B1/2P5/8/PP2PPPP/RN1QKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c1g5
A57 Benko Gambit Declined, Hjørring Countergambit rnbqkb1r/p2ppppp/5n2/1ppP4/2P1P3/8/PP3PPP/RNBQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 e2e4
A57 Benko Gambit Declined, Main Line rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/5N2/PP2PPPP/RNBQKB1R b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 g1f3
A57 Benko Gambit Declined, Pseudo-Sämisch rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/5P2/PP2P1PP/RNBQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 f2f3
A57 Benko Gambit Declined, Quiet Line rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/8/PP1NPPPP/R1BQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 b1d2
A57 Benko Gambit Declined, Sosonko Variation rnbqkb1r/p2ppppp/5n2/1ppP4/P1P5/8/1P2PPPP/RNBQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 a2a4
A57 Benko Gambit: Mutkin Countergambit rnbqkb1r/p2ppppp/5n2/1ppP4/2P3P1/8/PP2PP1P/RNBQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 g2g4
A57 Benko Gambit: Nescafe Frappe Attack rnbqkb1r/4pppp/3p1n2/1NpP4/1pB1P3/8/PP3PPP/R1BQK1NR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3 a6b5 e2e4 b5b4 c3b5 d7d6 f1c4
A57 Benko Gambit rnbqkb1r/p2ppppp/5n2/1ppP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5
A57 Benko Gambit: Zaitsev System rnbqkb1r/3ppppp/p4n2/1PpP4/8/2N5/PP2PPPP/R1BQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3
A57 Benko Gambit: Zaitsev Variation, Nescafe Frappe Attack rnbqkb1r/3ppppp/5n2/1NpP4/1p2P3/8/PP3PPP/R1BQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b1c3 a6b5 e2e4 b5b4 c3b5
A58 Benko Gambit Accepted, Central Storming Variation rn1qkb1r/3ppp1p/b4np1/2pP4/5P2/2N5/PP2P1PP/R1BQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 f2f4
A58 Benko Gambit Accepted, Fianchetto Variation rn1qk2r/4ppbp/b2p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQK2R b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 g2g3 d7d6 f1g2 f8g7 g1f3
A58 Benko Gambit Accepted, Fully Accepted Variation rnbqkb1r/3ppppp/P4n2/2pP4/8/8/PP2PPPP/RNBQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6
A58 Benko Gambit: Fianchetto Variation rn1qkb1r/4pp1p/b2p1np1/2pP4/8/2N2NP1/PP2PP1P/R1BQKB1R b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 g1f3 g7g6 g2g3
A58 Benko Gambit: Nd2 Variation rn1qkb1r/4pp1p/b2p1np1/2pP4/8/2N5/PP1NPPPP/R1BQKB1R b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 g1f3 g7g6 f3d2
A59 Benko Gambit Accepted, King Walk Variation rn1q1rk1/4ppbp/3p1np1/2pP4/4P3/2N2NP1/PP3PKP/R1BQ3R b - - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 g1f3 d7d6 e2e4 a6f1 e1f1 f8g7 g2g3 e8g8 f1g2
A59 Benko Gambit Accepted, Yugoslav rn1qkb1r/4pp1p/3p1np1/2pP4/4P3/2N5/PP2NPPP/R1BQ1K1R b kq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 e2e4 a6f1 e1f1 d7d6 g1e2
A59 Benko Gambit Accepted, Yugoslav rn1qkb1r/4pppp/b2p1n2/2pP4/4P3/2N5/PP3PPP/R1BQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 c8a6 b1c3 d7d6 e2e4
A59 Benko Gambit rn1qkb1r/4pp1p/3p1np1/2pP4/4P3/2N3P1/PP3P1P/R1BQ1KNR b kq - d2d4 g8f6 c2c4 c7c5 d4d5 b7b5 c4b5 a7a6 b5a6 g7g6 b1c3 c8a6 e2e4 a6f1 e1f1 d7d6 g2g3
A60 Benoni Defense: Modern Variation rnbqkb1r/pp1p1ppp/4pn2/2pP4/2P5/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 e7e6
A60 Benoni Defense: Modern Variation, Snake Variation rnbqk2r/pp1p1ppp/3b1n2/2pP4/8/2N5/PP2PPPP/R1BQKBNR w KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 f8d6
A61 Benoni Defense: Fianchetto Variation rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N2NP1/PP2PP1P/R1BQKB1R b KQkq - d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 g2g3
A61 Benoni Defense: Knight's Tour Variation rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N5/PP1NPPPP/R1BQKB1R b KQkq - d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f3d2
A61 Benoni Defense rnbqkb1r/pp3p1p/3p1np1/2pP4/8/2N2N2/PP2PPPP/R1BQKB1R w KQkq - d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6
A61 Benoni Defense: Uhlmann Variation rnbqkb1r/pp3p1p/3p1np1/2pP2B1/8/2N2N2/PP2PPPP/R2QKB1R b KQkq - d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 c1g5
A62 Benoni Defense: Fianchetto Variation rnbq1rk1/pp3pbp/3p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQK2R w KQ - d2d4 g8f6 c2c4 e7e6 g2g3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f1g2 f8g7 g1f3 e8g8
A63 Benoni Defense: Fianchetto Variation, Hastings Defense r1bq1rk1/pp1n1pbp/3p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQ1RK1 w - - d2d4 g8f6 c2c4 e7e6 g2g3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f1g2 f8g7 g1f3 e8g8 e1g1 b8d7
A64 Benoni Defense: Fianchetto Variation, Hastings Defense, Main Line r1bqr1k1/1p1n1pbp/p2p1np1/2pP4/P7/2N3P1/1P1NPPBP/R1BQ1RK1 w - - d2d4 g8f6 c2c4 e7e6 g2g3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 f1g2 f8g7 g1f3 e8g8 e1g1 a7a6 a2a4 b8d7 f3d2 f8e8
A65 Benoni Defense: King's Pawn Line rnbqkb1r/pp3ppp/3p1n2/2pP4/4P3/2N5/PP3PPP/R1BQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4
A66 Benoni Defense: Mikenas Variation rnbqk2r/pp3pbp/3p1np1/2pPP3/5P2/2N5/PP4PP/R1BQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 e4e5
A66 Benoni Defense: Pawn Storm Variation rnbqkb1r/pp3p1p/3p1np1/2pP4/4PP2/2N5/PP4PP/R1BQKBNR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4
A67 Benoni Defense: Taimanov Variation rnbqk2r/pp3pbp/3p1np1/1BpP4/4PP2/2N5/PP4PP/R1BQK1NR b KQkq - d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 f1b5
A68 Benoni Defense: Four Pawns Attack rnbq1rk1/pp3pbp/3p1np1/2pP4/4PP2/2N2N2/PP4PP/R1BQKB1R w KQ - d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 f2f4 f8g7 g1f3 e8g8
A69 Benoni Defense: Four Pawns Attack, Main Line rnbqr1k1/pp3pbp/3p1np1/2pP4/4PP2/2N2N2/PP2B1PP/R1BQK2R w KQ - d2d4 g8f6 c2c4 g7g6 b1c3 f8g7 e2e4 d7d6 f2f4 e8g8 g1f3 c7c5 d4d5 e7e6 f1e2 e6d5 c4d5 f8e8
A70 Benoni Defense: Classical Variation, New York Variation rnbqk2r/pp3pbp/3p1np1/2pP4/4P3/2N2N1P/PP3PP1/R1BQKB1R b KQkq - d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 h2h3
A70 Benoni Defense: Classical Variation rnbqkb1r/pp3p1p/3p1np1/2pP4/4P3/2N2N2/PP3PPP/R1BQKB1R b KQkq - d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4
A70 Benoni Defense: Classical Variation, Traditional Variation rnbqk2r/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQK2R b KQkq - d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 f1e2
A71 Benoni Defense: Classical Variation, Averbakh-Grivas Attack rnbqk2r/pp3pbp/3p1np1/2pP2B1/4P3/2N2N2/PP3PPP/R2QKB1R b KQkq - d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 c1g5
A72 Benoni Defense: Classical rnbq1rk1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQK2R w KQ - d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8
A73 Benoni Defense: Classical Variation, Main Line rnbq1rk1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQ1RK1 b - - d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1
A74 Benoni Defense: Classical Variation, Full Line rnbq1rk1/1p3pbp/p2p1np1/2pP4/P3P3/2N2N2/1P2BPPP/R1BQ1RK1 b - - d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 a7a6 a2a4
A75 Benoni Defense: Classical Variation, Argentine Counterattack rn1q1rk1/1p3pbp/p2p1np1/2pP4/P3P1b1/2N2N2/1P2BPPP/R1BQ1RK1 w - - d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 f1e2 e8g8 e1g1 a7a6 a2a4 c8g4
A76 Benoni Defense: Classical Variation, Czerniak Defense rnbqr1k1/pp3pbp/3p1np1/2pP4/4P3/2N2N2/PP2BPPP/R1BQ1RK1 w - - d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8
A77 Benoni Defense: Classical Variation, Czerniak Defense, Tal Line rnbqr1k1/pp3pbp/3p1np1/2pP4/4P3/2N5/PP1NBPPP/R1BQ1RK1 b - - d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2
A78 Benoni Defense: Classical Variation, Czerniak Defense r1bqr1k1/pp3pbp/n2p1np1/2pP4/4P3/2N5/PP1NBPPP/R1BQ1RK1 w - - d2d4 g8f6 c2c4 e7e6 g1f3 c7c5 d4d5 e6d5 c4d5 d7d6 b1c3 g7g6 e2e4 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2 b8a6
A79 Benoni Defense: Classical Variation, Czerniak Defense r1bqr1k1/pp3pbp/n2p1np1/2pP4/4P3/2N2P2/PP1NB1PP/R1BQ1RK1 b - - d2d4 g8f6 c2c4 c7c5 d4d5 e7e6 b1c3 e6d5 c4d5 d7d6 e2e4 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 f8e8 f3d2 b8a6 f2f3
A80 Blackmar-Diemer Gambit: Netherlands Variation rnbqkbnr/ppp1p1pp/8/5p2/3Pp3/2N5/PPP2PPP/R1BQKBNR w KQkq - d2d4 f7f5 b1c3 d7d5 e2e4 d5e4
A80 Dutch Defense: Alapin Variation rnbqkbnr/ppppp1pp/8/5p2/3P4/3Q4/PPP1PPPP/RNB1KBNR b KQkq - d2d4 f7f5 d1d3
A80 Dutch Defense: Hevendehl Gambit rnbqkbnr/pppp2pp/8/4pp2/3P2P1/8/PPP1PP1P/RNBQKBNR w KQkq - d2d4 f7f5 g2g4 e7e5
A80 Dutch Defense: Hopton Attack rnbqkbnr/ppppp1pp/8/5pB1/3P4/8/PPP1PPPP/RN1QKBNR b KQkq - d2d4 f7f5 c1g5
A80 Dutch Defense: Janzen-Korchnoi Gambit rnbqkb1r/ppppp1pp/5n2/5p2/3P2P1/7P/PPP1PP2/RNBQKBNR b KQkq - d2d4 f7f5 h2h3 g8f6 g2g4
A80 Dutch Defense: Kingfisher Gambit rnbqkbnr/ppp1p1pp/8/3p1p2/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - d2d4 f7f5 b1c3 d7d5 e2e4
A80 Dutch Defense: Korchnoi Attack rnbqkbnr/ppppp1pp/8/5p2/3P4/7P/PPP1PPP1/RNBQKBNR b KQkq - d2d4 f7f5 h2h3
A80 Dutch Defense: Krejcik Gambit rnbqkbnr/ppppp1pp/8/5p2/3P2P1/8/PPP1PP1P/RNBQKBNR b KQkq - d2d4 f7f5 g2g4
A80 Dutch Defense: Krejcik Gambit, Tate Gambit rnbqkbnr/ppp1p1pp/8/3p4/3PP1p1/2N5/PPP2P1P/R1BQKBNR b KQkq - d2d4 f7f5 g2g4 f5g4 e2e4 d7d5 b1c3
A80 Dutch Defense: Manhattan Gambit, Anti-Classical Line rnbqkbnr/pppp2pp/4p3/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq - d2d4 f7f5 d1d3 e7e6 g2g4
A80 Dutch Defense: Manhattan Gambit, Anti-Leningrad rnbqkbnr/ppppp2p/6p1/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq - d2d4 f7f5 d1d3 g7g6 g2g4
A80 Dutch Defense: Manhattan Gambit, Anti-Modern rnbqkbnr/ppp1p1pp/3p4/5p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq - d2d4 f7f5 d1d3 d7d6 g2g4
A80 Dutch Defense: Manhattan Gambit, Anti-Stonewall rnbqkbnr/ppp1p1pp/8/3p1p2/3P2P1/3Q4/PPP1PP1P/RNB1KBNR b KQkq - d2d4 f7f5 d1d3 d7d5 g2g4
A80 Dutch Defense: Omega-Isis Gambit rnbqkbnr/pppp2pp/8/4pp2/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - d2d4 f7f5 g1f3 e7e5
A80 Dutch Defense: Raphael Variation rnbqkbnr/ppppp1pp/8/5p2/3P4/2N5/PPP1PPPP/R1BQKBNR b KQkq - d2d4 f7f5 b1c3
A80 Dutch Defense rnbqkbnr/ppppp1pp/8/5p2/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - d2d4 f7f5
A80 Dutch Defense: Spielmann Gambit rnbqkb1r/ppppp1pp/5n2/5p2/3P2P1/2N5/PPP1PP1P/R1BQKBNR b KQkq - d2d4 f7f5 b1c3 g8f6 g2g4
A80 Queen's Pawn Game: Veresov Attack, Dutch System rnbqkbnr/ppp1p1pp/8/3p1p2/3P4/2N5/PPP1PPPP/R1BQKBNR w KQkq - d2d4 f7f5 b1c3 d7d5
A81 Dutch Defense: Blackburne Variation rnbqkb1r/pppp2pp/4pn2/5p2/3P4/6PN/PPP1PPBP/RNBQK2R b KQkq - d2d4 f7f5 g2g3 g8f6 f1g2 e7e6 g1h3
A81 Dutch Defense: Fianchetto Attack rnbqkbnr/ppppp1pp/8/5p2/3P4/6P1/PPP1PP1P/RNBQKBNR b KQkq - d2d4 f7f5 g2g3
A81 Dutch Defense: Leningrad, Basman System rnbqk2r/pp1pp1bp/2p3pn/5p2/3P4/5NP1/PPP1PPBP/RNBQ1RK1 w kq - d2d4 f7f5 g2g3 c7c6 f1g2 g7g6 g1f3 f8g7 e1g1 g8h6
A81 Dutch Defense: Leningrad Variation, Karlsbad Variation rnbqk1nr/ppppp1bp/6p1/5p2/3P4/6PN/PPP1PPBP/RNBQK2R b KQkq - d2d4 f7f5 g2g3 g7g6 f1g2 f8g7 g1h3
A81 Dutch Defense: Semi-Leningrad Variation rnbqkb1r/ppppp2p/5np1/5p2/3P4/6P1/PPP1PPBP/RNBQK1NR w KQkq - d2d4 f7f5 g2g3 g8f6 f1g2 g7g6
A82 Dutch Defense: Blackmar's Second Gambit rnbqkb1r/ppppp1pp/5n2/8/3Pp3/2N2P2/PPP3PP/R1BQKBNR b KQkq - d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 f2f3
A82 Dutch Defense: Staunton Gambit Accepted rnbqkbnr/ppppp1pp/8/8/3Pp3/8/PPP2PPP/RNBQKBNR w KQkq - d2d4 f7f5 e2e4 f5e4
A82 Dutch Defense: Staunton Gambit, American Attack rnbqkbnr/ppppp1pp/8/8/3Pp3/8/PPPN1PPP/R1BQKBNR b KQkq - d2d4 f7f5 e2e4 f5e4 b1d2
A82 Dutch Defense: Staunton Gambit rnbqkbnr/ppppp1pp/8/5p2/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - d2d4 f7f5 e2e4
A82 Dutch Defense: Staunton Gambit, Tartakower Variation rnbqkb1r/ppppp1pp/5n2/8/3Pp1P1/2N5/PPP2P1P/R1BQKBNR b KQkq - d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 g2g4
A82 French Defense: Franco-Hiva Gambit rnbqkbnr/pppp2pp/4p3/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - d2d4 f7f5 e2e4 e7e6
A82 Rat Defense: Balogh Defense rnbqkbnr/ppp1p1pp/3p4/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 d7d6 d2d4 f7f5
A83 Dutch Defense: Staunton Gambit, Alekhine Variation rnbqkb1r/ppppp2p/5np1/6B1/3Pp2P/2N5/PPP2PP1/R2QKBNR b KQkq - d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 g7g6 h2h4
A83 Dutch Defense: Staunton Gambit, Chigorin Variation rnbqkb1r/pp1pp1pp/2p2n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq - d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 c7c6
A83 Dutch Defense: Staunton Gambit, Lasker Variation rnbqkb1r/ppppp2p/5np1/6B1/3Pp3/2N2P2/PPP3PP/R2QKBNR b KQkq - d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 g7g6 f2f3
A83 Dutch Defense: Staunton Gambit, Nimzowitsch Variation rnbqkb1r/p1ppp1pp/1p3n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq - d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5 b7b6
A83 Dutch Defense: Staunton Gambit rnbqkb1r/ppppp1pp/5n2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR b KQkq - d2d4 f7f5 e2e4 f5e4 b1c3 g8f6 c1g5
A84 Dutch Defense: Bladel Variation rnbqkb1r/ppppp2p/6pn/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - d2d4 f7f5 c2c4 g7g6 b1c3 g8h6
A84 Dutch Defense: Classical Variation rnbqkbnr/pppp2pp/4p3/5p2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 e7e6 c2c4 f7f5
A84 Dutch Defense: Normal Variation rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - d2d4 f7f5 c2c4 g8f6
A84 Dutch Defense rnbqkbnr/ppppp1pp/8/5p2/2PP4/8/PP2PPPP/RNBQKBNR b KQkq - d2d4 f7f5 c2c4
A84 Dutch Defense: Rubinstein Variation rnbqkbnr/pppp2pp/4p3/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - d2d4 e7e6 c2c4 f7f5 b1c3
A84 Horwitz Defense: Dutch Defense, Bellon Gambit rnbqkbnr/pppp2pp/4p3/5p2/2PPP3/8/PP3PPP/RNBQKBNR b KQkq - d2d4 e7e6 c2c4 f7f5 e2e4
A85 Dutch Defense: Queen's Knight Variation rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - d2d4 f7f5 c2c4 g8f6 b1c3
A86 Dutch Defense: Fianchetto Variation rnbqkb1r/ppppp1pp/5n2/5p2/2PP4/6P1/PP2PP1P/RNBQKBNR b KQkq - d2d4 f7f5 c2c4 g8f6 g2g3
A86 Dutch Defense: Hort-Antoshin System rnb1kb1r/ppq1p1pp/2pp1n2/5p2/2PP4/2N3P1/PP2PPBP/R1BQK1NR w KQkq - c2c4 f7f5 g2g3 g8f6 f1g2 d7d6 b1c3 c7c6 d2d4 d8c7
A86 Dutch Defense: Leningrad Variation rnbqkb1r/ppppp2p/5np1/5p2/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq - d2d4 f7f5 c2c4 g8f6 g2g3 g7g6
A87 Dutch Defense: Leningrad Variation rnbqk2r/ppppp1bp/5np1/5p2/2PP4/5NP1/PP2PPBP/RNBQK2R b KQkq - d2d4 f7f5 c2c4 g8f6 g2g3 g7g6 f1g2 f8g7 g1f3
A88 Dutch Defense: Leningrad Variation, Warsaw Variation rnbq1rk1/pp2p1bp/2pp1np1/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - d2d4 f7f5 g2g3 g8f6 f1g2 g7g6 g1f3 f8g7 e1g1 e8g8 c2c4 d7d6 b1c3 c7c6
A89 Dutch Defense: Leningrad Variation, Matulovic Variation r1bq1rk1/ppp1p1bp/2np1np1/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - d2d4 f7f5 g2g3 g8f6 f1g2 g7g6 g1f3 f8g7 e1g1 e8g8 c2c4 d7d6 b1c3 b8c6
A90 Dutch Defense: Classical Variation rnbqkb1r/pppp2pp/4pn2/5p2/2PP4/6P1/PP2PPBP/RNBQK1NR b KQkq - d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2
A90 Dutch Defense: Nimzo-Dutch Variation, Alekhine Variation rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6P1/PP1BPPBP/RN1QK1NR w KQkq - d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8b4 c1d2 b4e7
A90 Dutch Defense: Nimzo-Dutch Variation rnbqk2r/pppp2pp/4pn2/5p2/1bPP4/6P1/PP2PPBP/RNBQK1NR w KQkq - d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8b4
A91 Dutch Defense: Classical Variation, Blackburne Attack rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6PN/PP2PPBP/RNBQK2R b KQkq - d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1h3
A91 Dutch Defense: Classical Variation rnbqk2r/ppppb1pp/4pn2/5p2/2PP4/6P1/PP2PPBP/RNBQK1NR w KQkq - d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7
A92 Dutch Defense: Alekhine Variation rnbq1rk1/ppppb1pp/4p3/5p2/2PPn3/5NP1/PP2PPBP/RNBQ1RK1 w - - d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 f6e4
A92 Dutch Defense: Classical Variation rnbq1rk1/ppppb1pp/4pn2/5p2/2PP4/5NP1/PP2PPBP/RNBQK2R w KQ - d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8
A92 Dutch Defense: Stonewall Variation rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - - d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 d7d5 e1g1 e8g8
A92 Dutch Defense: Stonewall rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - - d2d4 e7e6 g1f3 f7f5 g2g3 g8f6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d5 b1c3
A93 Dutch Defense: Classical Variation, Stonewall Variation, Botvinnik Variation rnbq1rk1/ppp1b1pp/4pn2/3p1p2/2PP4/1P3NP1/P3PPBP/RNBQ1RK1 b - - d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 d7d5 e1g1 e8g8 b2b3
A94 Dutch Defense: Classical Variation, Stonewall Variation rnbq1rk1/pp2b1pp/2p1pn2/3p1p2/2PP4/BP3NP1/P3PPBP/RN1Q1RK1 b - - d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 d7d5 e1g1 e8g8 b2b3 c7c6 c1a3
A95 Dutch Defense: Classical Variation, Stonewall Variation rnbq1rk1/pp2b1pp/2p1pn2/3p1p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 d7d5 g1f3 f8e7 e1g1 e8g8 b1c3 c7c6
A95 Dutch Defense: Stonewall: Chekhover Variation rnb1qrk1/pp2b1pp/2p1pn2/3p1pB1/2PP4/2N2NP1/PPQ1PPBP/R4RK1 b - - d2d4 f7f5 c2c4 g8f6 g2g3 e7e6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d5 b1c3 c7c6 d1c2 d8e8 c1g5
A96 Dutch Defense: Classical Variation, Buenos Aires Variation rnbq1rk1/1pp1b1pp/3ppn2/p4p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 a7a5
A96 Dutch Defense: Classical Variation, Huisl Variation rnbq1rk1/ppp1b1pp/3pp3/5p2/2PPn3/2N2NP1/PP2PPBP/R1BQ1RK1 w - - d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 f6e4
A96 Dutch Defense: Classical Variation rnbq1rk1/ppp1b1pp/3ppn2/5p2/2PP4/5NP1/PP2PPBP/RNBQ1RK1 w - - d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6
A97 Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 w - - d2d4 f7f5 g1f3 g8f6 g2g3 e7e6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d6 b1c3 d8e8
A97 Dutch Defense: Ilyin-Zhenevsky, Winter Variation rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PP2PPBP/R1BQR1K1 b - - d2d4 f7f5 g1f3 g8f6 g2g3 e7e6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d6 b1c3 d8e8 f1e1
A98 Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Alatortsev-Lisitsyn Line rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/2N2NP1/PPQ1PPBP/R1B2RK1 b - - d2d4 f7f5 g1f3 g8f6 g2g3 e7e6 f1g2 f8e7 e1g1 e8g8 c2c4 d7d6 b1c3 d8e8 d1c2
A99 Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Modern Main Line rnb1qrk1/ppp1b1pp/3ppn2/5p2/2PP4/1PN2NP1/P3PPBP/R1BQ1RK1 b - - d2d4 e7e6 c2c4 f7f5 g2g3 g8f6 f1g2 f8e7 g1f3 e8g8 e1g1 d7d6 b1c3 d8e8 b2b3
B00 Barnes Defense rnbqkbnr/ppppp1pp/5p2/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 f7f6
B00 Borg Defense: Borg Gambit rnbqk1nr/ppppppbp/8/6p1/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 g7g5 d2d4 f8g7
B00 Borg Defense: Langhorst Gambit rnbqkbnr/p2p1p1p/1p2p3/2P3p1/4P3/2P5/PP3PPP/RNBQKBNR w KQkq - e2e4 g7g5 d2d4 e7e6 c2c3 c7c5 d4c5 b7b6
B00 Borg Defense rnbqkbnr/pppppp1p/8/6p1/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 g7g5
B00 Borg Defense: Troon Gambit rnbqkbnr/pppppp2/7p/8/3PP1pP/8/PPP2PP1/RNBQKBNR w KQkq - e2e4 g7g5 d2d4 h7h6 h2h4 g5g4
B00 Borg Opening: Zilbermints Gambit rnbqkbnr/pppp1p1p/8/4p1p1/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 g7g5 d2d4 e7e5
B00 Carr Defense rnbqkbnr/ppppppp1/7p/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 h7h6
B00 Carr Defense: Zilbermints Gambit rnbqkbnr/pppp1pp1/7p/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 h7h6 d2d4 e7e5
B00 Duras Gambit rnbqkbnr/ppppp1pp/8/5p2/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 f7f5
B00 Fried Fox Defense rnbq1bnr/pppppkpp/5p2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQ - e2e4 f7f6 d2d4 e8f7
B00 Goldsmith Defense: Picklepuss Defense rnbqkb1r/ppppppp1/5n2/7p/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 h7h5 d2d4 g8f6
B00 Goldsmith Defense rnbqkbnr/ppppppp1/8/7p/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 h7h5
B00 Guatemala Defense rn1qkbnr/p1pppppp/bp6/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 b7b6 d2d4 c8a6
B00 Hippopotamus Defense rnbqkb1r/ppppp2p/5ppn/8/2PPP3/8/PP3PPP/RNBQKBNR w KQkq - e2e4 g8h6 d2d4 g7g6 c2c4 f7f6
B00 Hippopotamus Defense rnbqkb1r/pppppppp/7n/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 g8h6
B00 King's Pawn Game: Nimzowitsch Defense r1bqkbnr/pppppppp/2n5/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - e2e4 b8c6 d2d4
B00 King's Pawn Game: Nimzowitsch Defense: Wheeler Gambit r1bqkbnr/pppppppp/2n5/8/3PP3/2P5/P4PPP/RNBQKBNR b KQkq - e2e4 b8c6 b2b4 c6b4 c2c3 b4c6 d2d4
B00 King's Pawn rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - e2e4
B00 Lemming Defense r1bqkbnr/pppppppp/n7/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 b8a6
B00 Lion Defense: Lion's Jaw rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/5P2/PPP3PP/RNBQKBNR b KQkq - e2e4 d7d6 d2d4 g8f6 f2f3
B00 Nimzowitsch Defense: Breyer Variation r1bqkb1r/pppp1ppp/2n2n2/4p3/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 b8c6 b1c3 g8f6 d2d4 e7e5
B00 Nimzowitsch Defense, Declined Variation r1bqkbnr/pppppppp/2n5/8/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - e2e4 b8c6 g1f3
B00 Nimzowitsch Defense: El Columpio Defense, El Columpio Gambit r1bqkb1r/ppp1pppp/2npP2n/8/3P4/5N1P/PPP2PP1/RNBQKB1R b KQkq - e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 d2d4 d7d6 h2h3 g4h6 e5e6
B00 Nimzowitsch Defense: El Columpio Defense, Exchange Variation r1bqkb1r/ppp1pppp/2nP3n/8/3P4/5N1P/PPP2PP1/RNBQKB1R b KQkq - e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 d2d4 d7d6 h2h3 g4h6 e5d6
B00 Nimzowitsch Defense: El Columpio Defense, Pin Variation r1bqkb1r/ppp1pppp/2np3n/1B2P3/3P4/5N1P/PPP2PP1/RNBQK2R b KQkq - e2e4 b8c6 g1f3 g8f6 e4e5 f6g4 d2d4 d7d6 h2h3 g4h6 f1b5
B00 Nimzowitsch Defense: El Columpio Defense r1bqkb1r/pppppppp/2n5/4P3/6n1/5N2/PPPP1PPP/RNBQKB1R w KQkq - e2e4 b8c6 g1f3 g8f6 e4e5 f6g4
B00 Nimzowitsch Defense: Franco-Hiva Gambit r1bqkb1r/pppp2pp/2n1pn2/5P2/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 b8c6 d2d4 e7e6 b1c3 f7f5 e4f5 g8f6
B00 Nimzowitsch Defense: Franco-Hiva Gambit r1bqkb1r/pppp2pp/2n1pn2/5P2/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - e2e4 b8c6 d2d4 e7e6 g1f3 f7f5 e4f5 g8f6
B00 Nimzowitsch Defense: Franco-Nimzowitsch Variation r1bqkbnr/pppp1ppp/2n1p3/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - e2e4 b8c6 g1f3 e7e6
B00 Nimzowitsch Defense: French Connection r1bqkbnr/pppp1ppp/2n1p3/8/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - e2e4 b8c6 b1c3 e7e6
B00 Nimzowitsch Defense: Hornung Gambit r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/4B3/PPP2PPP/RN1QKBNR b KQkq - e2e4 b8c6 d2d4 d7d5 c1e3
B00 Nimzowitsch Defense: Kennedy Variation, Bielefelder Gambit r1bqk1nr/pppp1ppp/2n5/2b1P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 b8c6 d2d4 e7e5 d4e5 f8c5
B00 Nimzowitsch Defense: Kennedy Variation, de Smet Gambit r1bqkbnr/ppp2ppp/2np4/4P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 b8c6 d2d4 e7e5 d4e5 d7d6
B00 Nimzowitsch Defense: Kennedy Variation, Hammer Gambit r1bqkbnr/pppp2pp/2n2p2/4P3/4P3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 b8c6 d2d4 e7e5 d4e5 f7f6
B00 Nimzowitsch Defense: Kennedy Variation, Herford Gambit r1b1kbnr/pppp1ppp/2n5/4P3/4P2q/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 b8c6 d2d4 e7e5 d4e5 d8h4
B00 Nimzowitsch Defense: Kennedy Variation, Keres Attack r1bqkbnr/pppp1ppp/8/4n3/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 b1c3
B00 Nimzowitsch Defense: Kennedy Variation, Linksspringer Variation r1bqkbnr/pppp1ppp/2n5/3Pp3/4P3/8/PPP2PPP/RNBQKBNR b KQkq - e2e4 b8c6 d2d4 e7e5 d4d5
B00 Nimzowitsch Defense: Kennedy Variation, Main Line r1bqkbnr/pppp1ppp/6n1/8/4PP2/8/PPP3PP/RNBQKBNR w KQkq - e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 f2f4 e5g6
B00 Nimzowitsch Defense: Kennedy Variation, Paulsen Attack r1bqkbnr/pppp1ppp/8/4n3/4P3/5N2/PPP2PPP/RNBQKB1R b KQkq - e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 g1f3
B00 Nimzowitsch Defense: Kennedy Variation r1bqkbnr/pppp1ppp/2n5/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 b8c6 d2d4 e7e5
B00 Nimzowitsch Defense: Kennedy Variation, Riemann Defense r1bqkbnr/pppp1ppp/2n5/8/4PP2/8/PPP3PP/RNBQKBNR w KQkq - e2e4 b8c6 d2d4 e7e5 d4e5 c6e5 f2f4 e5c6
B00 Nimzowitsch Defense: Lean Variation, Colorado Counter Accepted r1bqkbnr/ppppp1pp/2n5/5P2/8/5N2/PPPP1PPP/RNBQKB1R b KQkq - e2e4 b8c6 g1f3 f7f5 e4f5
B00 Nimzowitsch Defense: Lean Variation r1bqkbnr/ppppp1pp/2n5/5p2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - e2e4 b8c6 g1f3 f7f5
B00 Nimzowitsch Defense: Mikenas Variation r1bqkbnr/ppp1pppp/2np4/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 b8c6 d2d4 d7d6
B00 Nimzowitsch Defense: Neo-Mongoloid Defense r1bqkbnr/ppppp1pp/2n2p2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 b8c6 d2d4 f7f6
B00 Nimzowitsch Defense: Pirc Connection r1bqkbnr/pppppp1p/2n3p1/8/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - e2e4 b8c6 b1c3 g7g6
B00 Nimzowitsch Defense: Pseudo-Spanish Variation r1bqkbnr/pppppppp/2n5/1B6/4P3/8/PPPP1PPP/RNBQK1NR b KQkq - e2e4 b8c6 f1b5
B00 Nimzowitsch Defense r1bqkbnr/pppppppp/2n5/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 b8c6
B00 Nimzowitsch Defense: Scandinavian Variation, Aachen Gambit r1bqkbnr/ppp1pppp/8/3P4/1n1P4/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 b8c6 d2d4 d7d5 e4d5 c6b4
B00 Nimzowitsch Defense: Scandinavian Variation, Advance Variation r1bqkbnr/ppp1pppp/2n5/3pP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq - e2e4 b8c6 d2d4 d7d5 e4e5
B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Brandics Gambit r1bqkbnr/1pp1pppp/p1n5/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 b8c6 d2d4 d7d5 b1c3 a7a6
B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Erben Gambit r1bqkbnr/ppp1pp1p/2n3p1/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 b8c6 d2d4 d7d5 b1c3 g7g6
B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Heinola-Deppe Gambit r1bqkbnr/ppp2ppp/2n5/3pp3/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 b8c6 d2d4 d7d5 b1c3 e7e5
B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Nimzowitsch Gambit r1bqkbnr/ppp1pppp/8/3Pn3/4p3/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 b8c6 d2d4 d7d5 b1c3 d5e4 d4d5 c6e5
B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - e2e4 b8c6 d2d4 d7d5 b1c3
B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Richter Gambit rnbqkbnr/ppp1pppp/8/3P4/4p3/2N2P2/PPP3PP/R1BQKBNR b KQkq - e2e4 b8c6 d2d4 d7d5 b1c3 d5e4 d4d5 c6b8 f2f3
B00 Nimzowitsch Defense: Scandinavian Variation, Bogoljubov Variation, Vehre Variation r1bqkb1r/ppp1pppp/2n2n2/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 b8c6 d2d4 d7d5 b1c3 g8f6
B00 Nimzowitsch Defense: Scandinavian Variation, Exchange Variation, Marshall Gambit r1b1kbnr/ppp1pppp/2n5/3q4/3P4/2N5/PPP2PPP/R1BQKBNR b KQkq - e2e4 b8c6 d2d4 d7d5 e4d5 d8d5 b1c3
B00 Nimzowitsch Defense: Scandinavian Variation, Exchange Variation r1b1kbnr/ppp1pppp/2n5/3q4/3P4/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 b8c6 d2d4 d7d5 e4d5 d8d5
B00 Nimzowitsch Defense: Scandinavian Variation r1bqkbnr/ppp1pppp/2n5/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 b8c6 d2d4 d7d5
B00 Nimzowitsch Defense: Wheeler Gambit r1bqkbnr/pppppppp/2n5/8/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq - e2e4 b8c6 b2b4
B00 Nimzowitsch Defense: Williams Variation r1bqkbnr/ppp1pppp/2np4/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - e2e4 b8c6 g1f3 d7d6
B00 Nimzowitsch Defense: Woodchuck Variation r1bqkbnr/1ppppppp/p1n5/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 b8c6 d2d4 a7a6
B00 Owen Defense: Hekili-Loa Gambit r1bqkbnr/p2ppppp/1pn5/2P5/4P3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 b7b6 d2d4 c7c5 d4c5 b8c6
B00 Owen Defense: Matovinsky Gambit rn1qkbnr/p1ppp2p/1p4p1/5P1Q/3P4/3B4/PPP2PbP/RNB1K1NR w KQkq - e2e4 b7b6 d2d4 c8b7 f1d3 f7f5 e4f5 b7g2 d1h5 g7g6
B00 Owen Defense: Naselwaus Gambit rn1qkbnr/pbpppppp/1p6/6B1/3PP3/8/PPP2PPP/RN1QKBNR b KQkq - e2e4 b7b6 d2d4 c8b7 c1g5
B00 Owen Defense rnbqkbnr/p1pppppp/1p6/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 b7b6
B00 Owen Defense: Smith Gambit rn1qkbnr/pbpppppp/1p6/8/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - e2e4 b7b6 d2d4 c8b7 g1f3
B00 Owen Defense: Unicorn Variation rn1qkbnr/pbppp1pp/1p3p2/8/2PPP3/8/PP3PPP/RNBQKBNR w KQkq - e2e4 f7f6 d2d4 b7b6 c2c4 c8b7
B00 Owen Defense: Wind Gambit rn1qkbnr/pbpp1ppp/1p6/4p3/3PP3/5P2/PPP3PP/RNBQKBNR w KQkq - e2e4 b7b6 d2d4 c8b7 f2f3 e7e5
B00 Pirc Defense rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 d7d6 d2d4 g8f6
B00 Pirc Defense rnbqkbnr/ppp1pppp/3p4/8/3PP3/8/PPP2PPP/RNBQKBNR b KQkq - e2e4 d7d6 d2d4
B00 Pirc Defense rnbqkbnr/ppp1pppp/3p4/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 d7d6
B00 Pirc Defense: Roscher Gambit rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - e2e4 d7d6 d2d4 g8f6 g1f3
B00 Rat Defense: Antal Defense r1bqkbnr/pppnpppp/3p4/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 d7d6 d2d4 b8d7
B00 Rat Defense: Fuller Gambit rnbqkb1r/ppp1pppp/5n2/3P4/5P2/8/PPPP2PP/RNBQKBNR w KQkq - e2e4 d7d6 f2f4 d6d5 e4d5 g8f6
B00 Rat Defense: Harmonist rnbqkbnr/ppp1pppp/3p4/8/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - e2e4 d7d6 f2f4
B00 Rat Defense: Petruccioli Attack rnbqkbnr/ppp1pppp/3p4/8/4P2P/8/PPPP1PP1/RNBQKBNR b KQkq - e2e4 d7d6 h2h4
B00 Rat Defense: Spike Attack rnbqkbnr/ppp1pppp/3p4/8/4P1P1/8/PPPP1P1P/RNBQKBNR b KQkq - e2e4 d7d6 g2g4
B00 St. George Defense rnbqkbnr/1ppppppp/p7/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 a7a6
B00 St. George Defense: San Jorge Variation rn1qk1nr/1bp1ppbp/p2p2p1/1p6/3PP3/2PB1N2/PP3PPP/RNBQ1RK1 w kq - e2e4 a7a6 d2d4 b7b5 g1f3 c8b7 f1d3 d7d6 e1g1 g7g6 c2c3 f8g7
B00 St. George Defense: Zilbermints Gambit rnbqkbnr/1ppp1ppp/p7/4p3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 a7a6 d2d4 e7e5
B00 Van Geet Opening: Berlin Gambit r1bqkbnr/ppp1pppp/2n5/3P4/4p3/2N5/PPP2PPP/R1BQKBNR b KQkq - e2e4 b8c6 d2d4 d7d5 b1c3 d5e4 d4d5
B00 Ware Defense rnbqkbnr/1ppppppp/8/p7/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 a7a5
B00 Ware Defense: Snagglepuss Defense r1bqkbnr/1ppppppp/2n5/p7/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 a7a5 d2d4 b8c6
B00 Zukertort Defense: Sicilian Knight Variation r1bqkbnr/pp1ppppp/n7/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - e2e4 b8a6 g1f3 c7c5
B01 Scandinavian Defense: Anderssen Counterattack, Collijn Variation rn2kbnr/ppp2ppp/8/q3p3/3P2b1/2N2N2/PPP2PPP/R1BQKB1R w KQkq - e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 g1f3 c8g4
B01 Scandinavian Defense: Anderssen Counterattack, Goteborg System rnb1kbnr/ppp2ppp/8/q3p3/3P4/2N2N2/PPP2PPP/R1BQKB1R b KQkq - e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 g1f3
B01 Scandinavian Defense: Anderssen Counterattack, Orthodox Attack r1b1k1nr/ppp2ppp/2n5/q3P3/1b6/2N2N2/PPPB1PPP/R2QKB1R b KQkq - e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5 d4e5 b8c6 g1f3 f8b4 c1d2
B01 Scandinavian Defense: Anderssen Counterattack rnb1kbnr/ppp2ppp/8/q3p3/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 e7e5
B01 Scandinavian Defense: Blackburne Gambit r1bqkbnr/pp2pppp/2n5/8/8/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 d7d5 e4d5 c7c6 d5c6 b8c6
B01 Scandinavian Defense: Blackburne-Kloosterboer Gambit rnbqkbnr/pp2pppp/2p5/3P4/8/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 d7d5 e4d5 c7c6
B01 Scandinavian Defense: Boehnke Gambit rn1qkbnr/ppp2ppp/4b3/8/8/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 d7d5 e4d5 e7e5 d5e6 c8e6
B01 Scandinavian Defense: Bronstein Variation rnb1kb1r/1pp1pppp/p2q1n2/8/3P4/2N2N2/PPP2PPP/R1BQKB1R w KQkq - e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 d2d4 g8f6 g1f3 a7a6
B01 Scandinavian Defense: Classical Variation rn2kb1r/ppp1pppp/5n2/q4b2/3P4/2N2N2/PPP2PPP/R1BQKB1R w KQkq - e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8f5
B01 Scandinavian Defense: Grünfeld Variation rn2kb1r/pp2pppp/2p2n2/q3Nb2/3P2P1/2N5/PPP2P1P/R1BQKB1R b KQkq - e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8f5 f3e5 c7c6 g2g4
B01 Scandinavian Defense: Gubinsky-Melts Defense rnb1kbnr/ppp1pppp/3q4/8/8/2N5/PPPP1PPP/R1BQKBNR w KQkq - e2e4 d7d5 e4d5 d8d5 b1c3 d5d6
B01 Scandinavian Defense: Icelandic-Palme Gambit rnbqkb1r/ppp2ppp/4pn2/3P4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq - e2e4 d7d5 e4d5 g8f6 c2c4 e7e6
B01 Scandinavian Defense: Kadas Gambit rnbqkb1r/pp3ppp/2P2n2/4p3/3P4/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 d7d5 e4d5 g8f6 d2d4 c7c6 d5c6 e7e5
B01 Scandinavian Defense: Kiel Variation rnbqkb1r/ppp1pppp/8/8/1nPP4/8/PP3PPP/RNBQKBNR w KQkq - e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 c2c4 d5b4
B01 Scandinavian Defense: Kloosterboer Gambit rnbqkbnr/pp3ppp/2P5/4p3/8/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 d7d5 e4d5 c7c6 d5c6 e7e5
B01 Scandinavian Defense: Lasker Variation rn2kb1r/ppp1pppp/5n2/q7/3P2b1/2N2N1P/PPP2PP1/R1BQKB1R b KQkq - e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6 g1f3 c8g4 h2h3
B01 Scandinavian Defense: Main Line, Leonhardt Gambit rnb1kbnr/ppp1pppp/8/q7/1P6/2N5/P1PP1PPP/R1BQKBNR b KQkq - e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 b2b4
B01 Scandinavian Defense: Main Line, Mieses Variation rnb1kb1r/ppp1pppp/5n2/q7/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 d7d5 e4d5 d8d5 b1c3 d5a5 d2d4 g8f6
B01 Scandinavian Defense: Main Line rnb1kbnr/ppp1pppp/8/q7/8/2N5/PPPP1PPP/R1BQKBNR w KQkq - e2e4 d7d5 e4d5 d8d5 b1c3 d5a5
B01 Scandinavian Defense: Marshall Variation rnbqkb1r/ppp1pppp/8/3n4/3P4/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 d7d5 e4d5 g8f6 d2d4 f6d5
B01 Scandinavian Defense: Mieses-Kotroc Variation rnb1kbnr/ppp1pppp/8/3q4/8/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 d7d5 e4d5 d8d5
B01 Scandinavian Defense: Modern Variation, Gipslis Variation rn1qkb1r/ppp1pppp/8/3n4/3P2b1/5N2/PPP2PPP/RNBQKB1R w KQkq - e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 g1f3 c8g4
B01 Scandinavian Defense: Modern Variation rnbqkb1r/ppp1pppp/5n2/3P4/3P4/8/PPP2PPP/RNBQKBNR b KQkq - e2e4 d7d5 e4d5 g8f6 d2d4
B01 Scandinavian Defense: Modern Variation rnbqkb1r/ppp1pppp/5n2/3P4/8/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 d7d5 e4d5 g8f6
B01 Scandinavian Defense: Modern Variation, Wing Gambit rnbqkb1r/p1p1pp1p/5np1/1p1P4/2PP4/8/PP3PPP/RNBQKBNR w KQkq - e2e4 d7d5 e4d5 g8f6 d2d4 g7g6 c2c4 b7b5
B01 Scandinavian Defense: Panov Transfer rnbqkb1r/pp2pppp/2p2n2/3P4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq - e2e4 d7d5 e4d5 g8f6 c2c4 c7c6
B01 Scandinavian Defense: Portuguese Variation, Portuguese Gambit r2qkb1r/pppnpppp/5n2/1B1P1b2/3P4/5P2/PPP3PP/RNBQK1NR w KQkq - e2e4 d7d5 e4d5 g8f6 d2d4 c8g4 f1b5 b8d7 f2f3 g4f5
B01 Scandinavian Defense: Portuguese Variation rn1qkb1r/ppp1pppp/5n2/3P4/3P2b1/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 d7d5 e4d5 g8f6 d2d4 c8g4
B01 Scandinavian Defense: Richter Variation rnbqkb1r/ppp1pp1p/5np1/3P4/3P4/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 d7d5 e4d5 g8f6 d2d4 g7g6
B01 Scandinavian Defense: Richter Variation rnbqkb1r/ppp1pp1p/6p1/3n4/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - e2e4 d7d5 e4d5 g8f6 d2d4 f6d5 g1f3 g7g6
B01 Scandinavian Defense rnbqkbnr/ppp1pppp/8/3p4/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq - e2e4 d7d5 b2b3
B01 Scandinavian Defense rnbqkbnr/ppp1pppp/8/3p4/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 d7d5
B01 Scandinavian Defense: Schiller-Pytel Variation, Modern Variation rn2kb1r/pp2pppp/2p2n2/5b2/1qBP1B2/2N5/PPP1NPPP/R2QK2R w KQkq - e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 d2d4 g8f6 f1c4 c7c6 g1e2 c8f5 c1f4 d6b4
B01 Scandinavian Defense: Schiller-Pytel Variation rnb1kbnr/pp2pppp/2pq4/8/3P4/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 d7d5 e4d5 d8d5 b1c3 d5d6 d2d4 c7c6
B01 Scandinavian Defense: Zilbermints Gambit rnbqkbnr/ppp1pppp/8/3p4/1P2P3/8/P1PP1PPP/RNBQKBNR b KQkq - e2e4 d7d5 b2b4
B01 Van Geet Opening: Grünfeld Defense rnbqkbnr/ppp2ppp/8/4p3/4N3/8/PPPP1PPP/R1BQKBNR w KQkq - e2e4 d7d5 b1c3 d5e4 c3e4 e7e5
B02 Alekhine Defense: Brooklyn Variation, Everglades Variation rnbqkbnr/ppppp1pp/8/4Pp2/3P4/8/PPP2PPP/RNBQKBNR w KQkq f6 e2e4 g8f6 e4e5 f6g8 d2d4 f7f5
B02 Alekhine Defense: Brooklyn Variation rnbqkbnr/pppppppp/8/4P3/8/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 g8f6 e4e5 f6g8
B02 Alekhine Defense: Buckley Attack rnbqkb1r/pppppppp/8/3nP3/8/N7/PPPP1PPP/R1BQKBNR b KQkq - e2e4 g8f6 e4e5 f6d5 b1a3
B02 Alekhine Defense: Hunt Variation, Lasker Simul Gambit rnbqkb1r/pppp1ppp/4p3/2PnP3/2B5/2N5/PP1P1PPP/R1BQK1NR b KQkq - e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3
B02 Alekhine Defense: Hunt Variation, Matsukevich Gambit rnbqkb1r/ppp1pppp/3p4/2P1P1B1/8/2P5/PP3PPP/R2QKBNR b KQkq - e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 b1c3 d5c3 d2c3 d7d6 c1g5
B02 Alekhine Defense: Hunt Variation, Mikenas Gambit rnbqkb1r/ppp2ppp/3p4/2PBP3/8/8/PP1P1PPP/R1BQK1NR b KQkq - e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3 d7d6 c3d5 e6d5 c4d5
B02 Alekhine Defense: Kmoch Variation rnbqkb1r/pp1ppppp/1n6/2p1P3/8/1B1P4/PPP2PPP/RNBQK1NR b KQkq - e2e4 g8f6 e4e5 f6d5 f1c4 d5b6 c4b3 c7c5 d2d3
B02 Alekhine Defense: Krejcik Variation, Krejcik Gambit rnbqkb1r/pppppBpp/8/8/4n3/8/PPPP1PPP/RNBQK1NR b KQkq - e2e4 g8f6 f1c4 f6e4 c4f7
B02 Alekhine Defense: Krejcik Variation rnbqkb1r/pppppppp/5n2/8/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq - e2e4 g8f6 f1c4
B02 Alekhine Defense: Maróczy Variation rnbqkb1r/pppppppp/5n2/8/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq - e2e4 g8f6 d2d3
B02 Alekhine Defense: Mokele Mbembe, Modern Line rnbqkb1r/ppppp1pp/5p2/4P3/3Pn3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 g8f6 e4e5 f6e4 d2d4 f7f6
B02 Alekhine Defense: Mokele Mbembe rnbqkb1r/pppppppp/8/4P3/4n3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 g8f6 e4e5 f6e4
B02 Alekhine Defense: Mokele Mbembe, Vavra Defense rnbqkb1r/pppp1ppp/4p3/4P3/3Pn3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 g8f6 e4e5 f6e4 d2d4 e7e6
B02 Alekhine Defense: Normal Variation rnbqkb1r/pppppppp/8/3nP3/8/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 g8f6 e4e5 f6d5
B02 Alekhine Defense rnbqkb1r/pppppppp/5n2/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 g8f6
B02 Alekhine Defense: Sämisch Attack rnbqkb1r/pppppppp/8/3nP3/8/2N5/PPPP1PPP/R1BQKBNR b KQkq - e2e4 g8f6 e4e5 f6d5 b1c3
B02 Alekhine Defense: Scandinavian Variation, Geschev Gambit rnbqkb1r/pp2pppp/2p2n2/3P4/8/2N5/PPPP1PPP/R1BQKBNR w KQkq - e2e4 g8f6 b1c3 d7d5 e4d5 c7c6
B02 Alekhine Defense: Scandinavian Variation, Myers Gambit rnbqkb1r/ppp1pppp/5n2/6B1/4p3/2NP4/PPP2PPP/R2QKBNR b KQkq - e2e4 g8f6 b1c3 d7d5 d2d3 d5e4 c1g5
B02 Alekhine Defense: Scandinavian Variation rnbqkb1r/ppp1pppp/5n2/3p4/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - e2e4 g8f6 b1c3 d7d5
B02 Alekhine Defense: Spielmann Gambit rnbqkb1r/pppnpppp/4P3/3p4/8/2N5/PPPP1PPP/R1BQKBNR b KQkq - e2e4 g8f6 b1c3 d7d5 e4e5 f6d7 e5e6
B02 Alekhine Defense: Steiner Variation rnbqkb1r/pppppppp/1n6/4P3/2P5/1P6/P2P1PPP/RNBQKBNR b KQkq - e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 b2b3
B02 Alekhine Defense: The Squirrel rnbqkb1r/pppppppp/8/4P3/2P2n2/8/PP1P1PPP/RNBQKBNR w KQkq - e2e4 g8f6 e4e5 f6d5 c2c4 d5f4
B02 Alekhine Defense: Two Pawn Attack, Lasker Variation rnbqkb1r/pppppppp/1n6/2P1P3/8/8/PP1P1PPP/RNBQKBNR b KQkq - e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5
B02 Alekhine Defense: Two Pawn Attack rnbqkb1r/pppppppp/8/3nP3/2P5/8/PP1P1PPP/RNBQKBNR b KQkq - e2e4 g8f6 e4e5 f6d5 c2c4
B02 Alekhine Defense: Two Pawns Attack, Mikenas Variation rnbqkb1r/ppp2ppp/3pp3/2PnP3/2B5/2N5/PP1P1PPP/R1BQK1NR w KQkq - e2e4 g8f6 e4e5 f6d5 c2c4 d5b6 c4c5 b6d5 f1c4 e7e6 b1c3 d7d6
B02 Alekhine Defense: Welling Variation rnbqkb1r/pppppppp/8/3nP3/8/1P6/P1PP1PPP/RNBQKBNR b KQkq - e2e4 g8f6 e4e5 f6d5 b2b3
B02 English Opening: Achilles-Omega Gambit rnbqkb1r/pppppppp/5n2/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq - e2e4 g8f6 c2c4
B02 King's Pawn Game: Clam Variation, Radisch Gambit rnbqk2r/pppp1ppp/5n2/2b1p3/4PP2/3P4/PPP3PP/RNBQKBNR w KQkq - e2e4 g8f6 d2d3 e7e5 f2f4 f8c5
B03 Alekhine Defense: Balogh Variation rnbqkb1r/ppp1pppp/3p4/3nP3/2BP4/8/PPP2PPP/RNBQK1NR b KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 f1c4
B03 Alekhine Defense: Exchange Variation, Karpov Variation r2q1rk1/pp2ppbp/1nnp2p1/5b2/2PP1B2/2N2N1P/PP2BPP1/R2Q1RK1 b - - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 e5d6 c7d6 b1c3 g7g6 h2h3 f8g7 g1f3 e8g8 f1e2 b8c6 e1g1 c8f5 c1f4
B03 Alekhine Defense: Exchange Variation rnbqkb1r/ppp1pppp/1n1P4/8/2PP4/8/PP3PPP/RNBQKBNR b KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 e5d6
B03 Alekhine Defense: Four Pawns Attack, Cambridge Gambit rnbqkb1r/ppp1pp1p/1n1p4/4P1p1/2PP1P2/8/PP4PP/RNBQKBNR w KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 g7g5
B03 Alekhine Defense: Four Pawns Attack, Fianchetto Variation rnbqkb1r/ppp1pp1p/1n1p2p1/4P3/2PP1P2/8/PP4PP/RNBQKBNR w KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 g7g6
B03 Alekhine Defense: Four Pawns Attack, Ilyin-Zhenevsky Variation r2qkb1r/ppp1p1pp/1nn1p3/2P5/3P2b1/5N2/PP4PP/RNBQKB1R b KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 g1f3 c8g4 e5e6 f7e6 c4c5
B03 Alekhine Defense: Four Pawns Attack, Korchnoi Variation rn1q1rk1/ppp1b1pp/1n2pp2/4Pb2/2PP4/2N2N2/PP2B1PP/R1BQ1RK1 w - - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 c8f5 b1c3 e7e6 g1f3 f8e7 f1e2 e8g8 e1g1 f7f6
B03 Alekhine Defense: Four Pawns Attack, Main Line r1bqkb1r/ppp1pppp/1nn5/4P3/2PP4/4B3/PP4PP/RN1QKBNR b KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 c1e3
B03 Alekhine Defense: Four Pawns Attack rnbqkb1r/ppp1pppp/1n1p4/4P3/2PP1P2/8/PP4PP/RNBQKBNR b KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4
B03 Alekhine Defense: Four Pawns Attack, Tartakower Variation 2kr3r/pppqbppp/1nn1p3/4Pb2/2PP4/2N1BN2/PP2B1PP/R2Q1RK1 w - - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 d6e5 f4e5 b8c6 c1e3 c8f5 b1c3 e7e6 g1f3 d8d7 f1e2 e8c8 e1g1 f8e7
B03 Alekhine Defense: Four Pawns Attack, Trifunovic Variation rn1qkb1r/ppp1pppp/1n1p4/4Pb2/2PP1P2/8/PP4PP/RNBQKBNR w KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 f2f4 c8f5
B03 Alekhine Defense: Hunt Variation rnbqkb1r/ppp1pppp/1n1p4/2P1P3/3P4/8/PP3PPP/RNBQKBNR b KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 c4c5
B03 Alekhine Defense: Modern Variation, Alekhine Gambit rn1qkb1r/ppp1pppp/1n1p4/4P3/2PP2b1/5N2/PP2BPPP/RNBQK2R b KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4 d5b6 g1f3 c8g4 f1e2
B03 Alekhine Defense: O'Sullivan Gambit rnbqkb1r/p1pppppp/8/1p1nP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 b7b5
B03 Alekhine Defense rnbqkb1r/ppp1pppp/3p4/3nP3/2PP4/8/PP3PPP/RNBQKBNR b KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 c2c4
B03 Alekhine Defense rnbqkb1r/ppp1pppp/3p4/3nP3/3P4/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6
B03 Alekhine Defense rnbqkb1r/pppppppp/8/3nP3/3P4/8/PPP2PPP/RNBQKBNR b KQkq - e2e4 g8f6 e4e5 f6d5 d2d4
B04 Alekhine Defense: Modern Variation, Alburt Variation rnbqkb1r/ppp1pp1p/3p2p1/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 g7g6
B04 Alekhine Defense: Modern Variation, Keres Variation rnbqk2r/ppp1ppbp/1n1p2p1/4P3/P2P4/1B3N2/1PP2PPP/RNBQK2R b KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 g7g6 f1c4 d5b6 c4b3 f8g7 a2a4
B04 Alekhine Defense: Modern Variation, Larsen-Haakert Variation r1bqkb1r/ppp1pppp/2np4/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 b8c6
B04 Alekhine Defense: Modern Variation, Larsen Variation rnbqkb1r/ppp1pppp/8/3np3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 d6e5
B04 Alekhine Defense: Modern Variation rnbqkb1r/ppp1pppp/3p4/3nP3/3P4/5N2/PPP2PPP/RNBQKB1R b KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3
B04 Alekhine Defense: Modern Variation, Schmid Variation rnbqkb1r/ppp1pppp/1n1p4/4P3/3P4/5N2/PPP2PPP/RNBQKB1R w KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 d5b6
B05 Alekhine Defense: Modern, Flohr Variation rn1qkb1r/pp2pppp/2pp4/3nP3/3P2b1/5N2/PPP1BPPP/RNBQK2R w KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 f1e2 c7c6
B05 Alekhine Defense: Modern Variation, Alekhine Variation rn1qkb1r/ppp1pppp/3p4/3nP3/2PP2b1/5N2/PP3PPP/RNBQKB1R b KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 c2c4
B05 Alekhine Defense: Modern Variation, Main Line rn1qkb1r/ppp1pppp/3p4/3nP3/3P2b1/5N2/PPP2PPP/RNBQKB1R w KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4
B05 Alekhine Defense: Modern Variation, Panov Variation rn1qkb1r/ppp1pppp/3p4/3nP3/3P2b1/5N1P/PPP2PP1/RNBQKB1R b KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 h2h3
B05 Alekhine Defense: Modern, Vitolins Attack rn1qkb1r/ppp1pppp/1n1p4/3PP3/2P3b1/5N2/PP3PPP/RNBQKB1R b KQkq - e2e4 g8f6 e4e5 f6d5 d2d4 d7d6 g1f3 c8g4 c2c4 d5b6 d4d5
B06 Modern Defense: Anti-Modern rnbqk1nr/pp2ppbp/2pp2p1/8/2BPP3/2N5/PPP1QPPP/R1B1K1NR b KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 f1c4 d7d6 d1e2
B06 Modern Defense: Bishop Attack, Bücker Gambit rnbqk1nr/p1ppppbp/6p1/1p6/2BPP3/8/PPP2PPP/RNBQK1NR w KQkq - e2e4 g7g6 d2d4 f8g7 f1c4 b7b5
B06 Modern Defense: Bishop Attack, Monkey's Bum rnbqk1nr/pppp1p1p/4p1p1/8/2BbP3/5Q2/PPP2PPP/RNB1K1NR w KQkq - e2e4 g7g6 f1c4 f8g7 d1f3 e7e6 d2d4 g7d4
B06 Modern Defense: Bishop Attack rnbqk1nr/ppppppbp/6p1/8/2BPP3/8/PPP2PPP/RNBQK1NR b KQkq - e2e4 g7g6 d2d4 f8g7 f1c4
B06 Modern Defense: Dunworthy Variation rnbqk1nr/pp2pp1p/2P3p1/8/2Pb4/8/PP3PPP/RNBQKBNR w KQkq - e2e4 g7g6 d2d4 f8g7 c2c4 d7d5 e4d5 c7c6 d5c6 g7d4
B06 Modern Defense: Fianchetto Gambit rnbqkbnr/ppppp2p/6p1/5p2/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 g7g6 d2d4 f7f5
B06 Modern Defense: Gurgenidze Defense rnbqk1nr/pp2ppb1/2p3p1/3pP2p/3P1P2/2N5/PPP3PP/R1BQKBNR w KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 f2f4 d7d5 e4e5 h7h5
B06 Modern Defense: Lizard Defense, Mittenberger Gambit rnbqk1nr/ppp1ppbp/6p1/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 d7d5
B06 Modern Defense: Masur Gambit rnbq1rk1/ppppp2p/6pb/5P2/3P4/2N5/PPP2PPP/R2QKBNR w KQ - e2e4 g7g6 d2d4 g8h6 b1c3 f7f5 c1h6 f8h6 e4f5 e8g8
B06 Modern Defense: Modern Pterodactyl rnbqk1nr/pp1pppbp/6p1/2p5/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 c7c5
B06 Modern Defense: Mongredien Defense rnbqk1nr/p1ppppbp/1p4p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 b7b6
B06 Modern Defense: Mongredien Defense rnbqk1nr/p1ppppbp/1p4p1/8/3PP3/5N2/PPP2PPP/RNBQKB1R w KQkq - e2e4 g7g6 d2d4 f8g7 g1f3 b7b6
B06 Modern Defense: Norwegian Defense, Norwegian Gambit rnbqkb1r/ppp1pp1p/3p2p1/4P2n/3P4/8/PPP1BPPP/RNBQK1NR w KQkq - e2e4 g7g6 d2d4 g8f6 e4e5 f6h5 f1e2 d7d6
B06 Modern Defense: Norwegian Defense rnbqkb1r/pppppp1p/5np1/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 g7g6 d2d4 g8f6
B06 Modern Defense: Pseudo-Austrian Attack rnbqk1nr/ppp1ppbp/3p2p1/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 f2f4
B06 Modern Defense rnbqkbnr/pppppp1p/6p1/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 g7g6
B06 Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Declined rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/5N2/PP2BPPP/RNBQK2R w KQkq - e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 g1f3 d7d6 f1e2 d8a5
B06 Modern Defense: Standard Defense rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 d7d6
B06 Modern Defense: Standard Line rnbqk1nr/ppppppbp/6p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - e2e4 g7g6 d2d4 f8g7 b1c3
B06 Modern Defense: Three Pawns Attack rnbqk1nr/ppppppbp/6p1/8/3PPP2/8/PPP3PP/RNBQKBNR b KQkq - e2e4 g7g6 d2d4 f8g7 f2f4
B06 Modern Defense: Two Knights Variation rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 g1f3
B06 Modern Defense: Two Knights Variation, Suttles Variation rnbqk1nr/pp2ppbp/2pp2p1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 c7c6 g1f3 d7d6
B06 Modern Defense: Two Knights Variation, Suttles Variation, Tal Gambit rnb1k1nr/pp2ppbp/2pp2p1/6B1/3PP3/2N2N2/PqPQ1PPP/R3KB1R w KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 d7d6 g1f3 c7c6 c1g5 d8b6 d1d2 b6b2
B06 Modern Defense: Westermann Gambit rnbqk1nr/ppppppbp/6p1/8/3PP3/8/PPPB1PPP/RN1QKBNR b KQkq - e2e4 g7g6 d2d4 f8g7 c1d2
B06 Modern Defense: Wind Gambit rnbqk1nr/ppppppbp/6p1/8/3PP3/3B4/PPP2PPP/RNBQK1NR b KQkq - e2e4 g7g6 d2d4 f8g7 f1d3
B06 Norwegian Defense rnbqkb1r/ppppppnp/6p1/4P3/3P2P1/8/PPP2P1P/RNBQKBNR w KQkq - e2e4 g7g6 d2d4 g8f6 e4e5 f6h5 g2g4 h5g7
B06 Pterodactyl Defense: Austrian, Austriadactylus Western rnb1k1nr/pp1pppbp/6p1/q1p5/3PPP2/5N2/PPP3PP/RNBQKB1R w KQkq - e2e4 g7g6 d2d4 f8g7 f2f4 c7c5 g1f3 d8a5
B06 Pterodactyl Defense: Austrian, Grand Prix Pterodactyl rnb1k1nr/pp1pppbp/6p1/q1p5/4PP2/2N2N2/PPPP2PP/R1BQKB1R w KQkq - e2e4 g7g6 b1c3 f8g7 f2f4 c7c5 g1f3 d8a5
B06 Pterodactyl Defense: Austrian, Pteranodon rnb1k1nr/pp1pppbp/6p1/q1p5/3PPP2/2P5/PP4PP/RNBQKBNR w KQkq - e2e4 g7g6 d2d4 f8g7 f2f4 c7c5 c2c3 d8a5
B06 Pterodactyl Defense: Central, Anhanguera rnb1k1nr/pp2ppbp/3p2p1/q1p5/2PPP3/2N1B3/PP3PPP/R2QKBNR w KQkq - e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 b1c3 d7d6 c1e3 d8a5
B06 Pterodactyl Defense: Central, Benoni Quetzalcoatlus rnb1k1nr/pp2ppbp/3p2p1/q1pP4/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq - e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 d4d5 d7d6 b1c3 d8a5
B06 Pterodactyl Defense: Central, Quetzalcoatlus Gambit rnb1k1nr/pp2ppbp/3p2p1/q1P5/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq - e2e4 g7g6 d2d4 f8g7 c2c4 c7c5 b1c3 d7d6 d4c5 d8a5
B06 Pterodactyl Defense: Eastern, Anhanguera rnbqk1nr/pp1pppbp/6p1/2p5/3PP3/2N1B3/PPP2PPP/R2QKBNR b KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 c1e3
B06 Pterodactyl Defense: Eastern, Benoni Pteranodon rnb1k1nr/pp1ppp1p/6p1/q1pP4/4P3/2P5/P1P2PPP/R1BQKBNR w KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4d5 g7c3 b2c3 d8a5
B06 Pterodactyl Defense: Eastern, Benoni Pterodactyl rnb1k1nr/pp1pppbp/6p1/q1pP4/4P3/2N5/PPP2PPP/R1BQKBNR w KQkq - d2d4 g7g6 b1c3 f8g7 e2e4 c7c5 d4d5 d8a5
B06 Pterodactyl Defense: Eastern, Benoni rnbqk1nr/pp1pppbp/6p1/2pP4/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - d2d4 g7g6 e2e4 f8g7 b1c3 c7c5 d4d5
B06 Pterodactyl Defense: Eastern, Pteranodon rnb1k1nr/pp1ppp1p/6p1/q1P5/4P3/2P5/P1P2PPP/R1BQKBNR w KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4c5 g7c3 b2c3 d8a5
B06 Pterodactyl Defense: Eastern, Pterodactyl rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4c5 d8a5
B06 Pterodactyl Defense: Eastern, Rhamphorhynchus rnbqk1nr/pp1pppbp/6p1/2P5/4P3/2N5/PPP2PPP/R1BQKBNR b KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 d4c5
B06 Pterodactyl Defense: Fianchetto, King Pterodactyl rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/5NP1/PPP2P1P/RNBQKB1R w KQkq - e2e4 g7g6 d2d4 f8g7 g2g3 c7c5 g1f3 d8a5
B06 Pterodactyl Defense: Fianchetto, Rhamphorhynchus rnb1k1nr/pp1pppbp/6p1/q1P5/4P3/6P1/PPP2P1P/RNBQKBNR w KQkq - e2e4 g7g6 d2d4 f8g7 g2g3 c7c5 d4c5 d8a5
B06 Pterodactyl Defense: Sicilian, Quetzalcoatlus rnb1k1nr/pp2ppbp/3p2p1/q1p5/3PP3/2N2N2/PPP1BPPP/R1BQK2R w KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 g1f3 d8a5 f1e2 d7d6
B06 Pterodactyl Defense: Sicilian, Siroccopteryx rnb1k1nr/pp1pppbp/6p1/q1p5/2BPP3/2N2N2/PPP2PPP/R1BQK2R b KQkq - e2e4 g7g6 d2d4 f8g7 b1c3 c7c5 g1f3 d8a5 f1c4
B06 Pterodactyl Defense: Western, Anhanguera rnb1k1nr/pp1pppbp/6p1/q1p5/3PP3/4BN2/PPP2PPP/RN1QKB1R w KQkq - e2e4 g7g6 d2d4 f8g7 g1f3 c7c5 c1e3 d8a5
B06 Pterodactyl Defense: Western, Siroccopteryx rnb1k1nr/pp1pppbp/6p1/q7/2BNP3/8/PPP2PPP/RNBQK2R w KQkq - e2e4 g7g6 g1f3 f8g7 d2d4 c7c5 f1c4 c5d4 f3d4 d8a5
B06 Rat Defense: Accelerated Gurgenidze rnbqkbnr/pp2pp1p/2pp2p1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 g7g6 d2d4 d7d6 b1c3 c7c6
B06 Robatsch (Modern) Defense rnbqk1nr/ppppppbp/6p1/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - e2e4 g7g6 d2d4 f8g7
B07 Czech Defense rnbqkb1r/pp2pppp/2pp1n2/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 c7c6
B07 Lion Defense: Anti-Philidor, Lion's Cave, Lion Claw Gambit r1bqkb1r/pp1n1ppp/2p2n2/3p4/2BQPP2/2N2N2/PPP3PP/R1B1K2R w KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 f2f4 e7e5 g1f3 e5d4 d1d4 c7c6 f1c4 d6d5
B07 Lion Defense: Anti-Philidor, Lion's Cave r1bqkb1r/pppn1ppp/3p1n2/4p3/3PPP2/2N5/PPP3PP/R1BQKBNR w KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 f2f4 e7e5
B07 Lion Defense: Anti-Philidor r1bqkb1r/pppnpppp/3p1n2/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 f2f4
B07 Lion Defense: Bayonet Attack r1bqkb1r/pppnpppp/3p1n2/8/3PP1P1/2N5/PPP2P1P/R1BQKBNR b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 b8d7 g2g4
B07 Modern Defense: Geller's System rnbqk1nr/ppp1ppbp/3p2p1/8/3PP3/2P2N2/PP3PPP/RNBQKB1R b KQkq - e2e4 g7g6 d2d4 f8g7 g1f3 d7d6 c2c3
B07 Philidor Defense: Lion Variation, Lion's Claw r1bqk2r/pp1nbppp/2pp1n2/4p3/3PP3/2N2N2/PPP1BPPP/R1BQ1RK1 w kq - e2e4 d7d6 d2d4 g8f6 b1c3 c7c6 f1e2 b8d7 g1f3 e7e5 e1g1 f8e7
B07 Pirc Defense: 150 Attack, Inner Doll Defense rn1qkb1r/pp2pp1p/2pp1np1/8/3PP1b1/2N1B3/PPPQ1PPP/R3KBNR w KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 d1d2 c8g4
B07 Pirc Defense: 150 Attack rnbqkb1r/pp2pp1p/2pp1np1/8/3PP3/2N1B3/PPPQ1PPP/R3KBNR b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 d1d2
B07 Pirc Defense: 150 Attack, Sveshnikov-Jansa Attack rnbqkb1r/pp2pp1p/2pp1np1/8/3PP3/2N1B2P/PPP2PP1/R2QKBNR b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1e3 c7c6 h2h3
B07 Pirc Defense: Bayonet Attack rnbqk2r/ppp1ppbp/3p1np1/8/3PP2P/2N5/PPP1BPP1/R1BQK1NR b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2 f8g7 h2h4
B07 Pirc Defense: Byrne Variation rnbqkb1r/ppp1pp1p/3p1np1/6B1/3PP3/2N5/PPP2PPP/R2QKBNR b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 c1g5
B07 Pirc Defense: Chinese Variation rnbqk2r/ppp1ppbp/3p1np1/8/3PP1P1/2N5/PPP1BP1P/R1BQK1NR b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2 f8g7 g2g4
B07 Pirc Defense: Classical Variation rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N5/PPP1BPPP/R1BQK1NR b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1e2
B07 Pirc Defense: Kholmov System rnbqkb1r/ppp1pp1p/3p1np1/8/2BPP3/2N5/PPP2PPP/R1BQK1NR b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f1c4
B07 Pirc Defense rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N5/PPP2PPP/R1BQKBNR w KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6
B07 Pirc Defense rnbqkb1r/ppp1pppp/3p1n2/8/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3
B07 Pirc Defense: Sveshnikov System rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N3P1/PPP2P1P/R1BQKBNR b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g2g3
B08 Pirc Defense: Classical Variation, Quiet System, Chigorin Line r1bq1rk1/ppp1ppbp/2np1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQ1RK1 w - - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 b8c6
B08 Pirc Defense: Classical Variation, Quiet System, Czech Defense rnbq1rk1/pp2ppbp/2pp1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQ1RK1 w - - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 c7c6
B08 Pirc Defense: Classical Variation, Quiet System, Parma Defense rn1q1rk1/ppp1ppbp/3p1np1/8/3PP1b1/2N2N2/PPP1BPPP/R1BQ1RK1 w - - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2 e8g8 e1g1 c8g4
B08 Pirc Defense: Classical Variation, Quiet System rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N2/PPP1BPPP/R1BQK2R b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 f1e2
B08 Pirc Defense: Classical Variation rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R w KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7
B08 Pirc Defense: Classical Variation rnbqkb1r/ppp1pp1p/3p1np1/8/3PP3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3
B08 Pirc Defense: Classical Variation, Schlechter Variation rnbqk2r/ppp1ppbp/3p1np1/8/3PP3/2N2N1P/PPP2PP1/R1BQKB1R b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 g1f3 f8g7 h2h3
B09 Pirc Defense: Austrian Attack, Dragon Formation rnbqk2r/pp2ppbp/3p1np1/2p5/3PPP2/2N2N2/PPP3PP/R1BQKB1R w KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 c7c5
B09 Pirc Defense: Austrian Attack, Kurajica Variation rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2N1BN2/PPP3PP/R2QKB1R b KQ - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 c1e3
B09 Pirc Defense: Austrian Attack, Ljubojevic Variation rnbqk2r/ppp1ppbp/3p1np1/8/2BPPP2/2N5/PPP3PP/R1BQK1NR b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 f1c4
B09 Pirc Defense: Austrian Attack rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2N2N2/PPP3PP/R1BQKB1R w KQ - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8
B09 Pirc Defense: Austrian Attack rnbqkb1r/ppp1pp1p/3p1np1/8/3PPP2/2N5/PPP3PP/R1BQKBNR b KQkq - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4
B09 Pirc Defense: Austrian Attack, Unzicker Attack, Bronstein Variation rnbq1rk1/pppnppbp/3p2p1/4P3/3P1P1P/2N2N2/PPP3P1/R1BQKB1R b KQ - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 e4e5 f6d7 h2h4
B09 Pirc Defense: Austrian Attack, Unzicker Attack rnbq1rk1/ppp1ppbp/3p1np1/4P3/3P1P2/2N2N2/PPP3PP/R1BQKB1R b KQ - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 e4e5
B09 Pirc Defense: Austrian Attack, Weiss Variation rnbq1rk1/ppp1ppbp/3p1np1/8/3PPP2/2NB1N2/PPP3PP/R1BQK2R b KQ - e2e4 d7d6 d2d4 g8f6 b1c3 g7g6 f2f4 f8g7 g1f3 e8g8 f1d3
B10 Caro-Kann Defense: Accelerated Panov Attack, Modern Variation rnbqkb1r/pp2pppp/5n2/3P4/8/8/PP1P1PPP/RNBQKBNR w KQkq - e2e4 c7c6 c2c4 d7d5 e4d5 c6d5 c4d5 g8f6
B10 Caro-Kann Defense: Accelerated Panov Attack, Open Variation rnbqkbnr/pp1p1ppp/2p5/4p3/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq - e2e4 c7c6 c2c4 e7e5
B10 Caro-Kann Defense: Accelerated Panov Attack, Pseudo-Scandinavian rnb1kbnr/pp2pppp/2p5/3q4/2P5/8/PP1P1PPP/RNBQKBNR w KQkq - e2e4 c7c6 c2c4 d7d5 e4d5 d8d5
B10 Caro-Kann Defense: Accelerated Panov Attack rnbqkbnr/pp1ppppp/2p5/8/2P1P3/8/PP1P1PPP/RNBQKBNR b KQkq - e2e4 c7c6 c2c4
B10 Caro-Kann Defense: Accelerated Panov Attack rnbqkbnr/pp2pppp/2p5/3p4/2P1P3/8/PP1P1PPP/RNBQKBNR w KQkq - e2e4 c7c6 c2c4 d7d5
B10 Caro-Kann Defense: Accelerated Panov Attack, Van Weersel Attack rnbqkbnr/pp2pppp/8/3p4/4P3/1Q6/PP1P1PPP/RNB1KBNR b KQkq - e2e4 c7c6 c2c4 d7d5 c4d5 c6d5 d1b3
B10 Caro-Kann Defense: Breyer Variation rnbqkbnr/pp1ppppp/2p5/8/4P3/3P4/PPP2PPP/RNBQKBNR b KQkq - e2e4 c7c6 d2d3
B10 Caro-Kann Defense: Breyer Variation, Stein Attack rnbq1rk1/pp2npbp/2p3p1/3pp3/1P2P3/3P1NP1/P1PN1PBP/R1BQ1RK1 b - - e2e4 c7c6 d2d3 d7d5 b1d2 g7g6 g1f3 f8g7 g2g3 e7e5 f1g2 g8e7 e1g1 e8g8 b2b4
B10 Caro-Kann Defense: Euwe Attack rnbqkbnr/pp1ppppp/2p5/8/4P3/1P6/P1PP1PPP/RNBQKBNR b KQkq - e2e4 c7c6 b2b3
B10 Caro-Kann Defense: Goldman Variation rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N2Q2/PPPP1PPP/R1B1KBNR b KQkq - e2e4 c7c6 b1c3 d7d5 d1f3
B10 Caro-Kann Defense: Hector Gambit rnbqkbnr/pp2pppp/2p5/6N1/4p3/2N5/PPPP1PPP/R1BQKB1R b KQkq - e2e4 c7c6 b1c3 d7d5 g1f3 d5e4 f3g5
B10 Caro-Kann Defense: Hillbilly Attack rnbqkbnr/pp1ppppp/2p5/8/2B1P3/8/PPPP1PPP/RNBQK1NR b KQkq - e2e4 c7c6 f1c4
B10 Caro-Kann Defense: Hillbilly Attack, Schaeffer Gambit rnbqkbnr/pp2pppp/2p5/7Q/4p3/1B6/PPPP1PPP/RNB1K1NR b KQkq - e2e4 c7c6 f1c4 d7d5 c4b3 d5e4 d1h5
B10 Caro-Kann Defense: Labahn Attack, Double Gambit rnbqkbnr/pp2pppp/2p5/1P1p4/4P3/8/P1PP1PPP/RNBQKBNR b KQkq - e2e4 c7c6 b2b4 d7d5 b4b5
B10 Caro-Kann Defense: Labahn Attack, Polish Variation rnbqkbnr/pp1p1ppp/2p5/4p3/1P2P3/8/PBPP1PPP/RN1QKBNR b KQkq - e2e4 c7c6 b2b4 e7e5 c1b2
B10 Caro-Kann Defense rnbqkbnr/pp1ppppp/2p5/8/4P3/2N5/PPPP1PPP/R1BQKBNR b KQkq - e2e4 c7c6 b1c3
B10 Caro-Kann Defense rnbqkbnr/pp1ppppp/2p5/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - e2e4 c7c6
B10 Caro-Kann Defense rnbqkbnr/pp2pppp/2p5/3p4/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - e2e4 c7c6 b1c3 d7d5
B10 Caro-Kann Defense: Scorpion-Horus Gambit rnbqkbnr/pp2pppp/2p5/6B1/4p3/2NP4/PPP2PPP/R2QKBNR b KQkq - e2e4 c7c6 b1c3 d7d5 d2d3 d5e4 c1g5