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[ECO C99 Ruy Lopez: closed, Chigorin, 12...c5d4] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Na5 Bc2 c5 d4 Qc7 N1d2 cd cd [ECO C98 Ruy Lopez: closed, Chigorin, Rauzer attack] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Na5 Bc2 c5 d4 Qc7 N1d2 Nc6 dc [ECO C98 Ruy Lopez: closed, Chigorin, 12...Nc6] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Na5 Bc2 c5 d4 Qc7 N1d2 Nc6 [ECO C97 Ruy Lopez: closed, Chigorin, Yugoslav system] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Na5 Bc2 c5 d4 Qc7 N1d2 Bd7 Nf1 f8e8 Ne3 g6 [ECO C97 Ruy Lopez: closed, Chigorin defence] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Na5 Bc2 c5 d4 Qc7 [ECO C96 Ruy Lopez: closed, Keres defence] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Na5 Bc2 c5 d4 Nd7 [ECO C96 Ruy Lopez: closed, Borisenko defence] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Na5 Bc2 c5 d4 Nc6 [ECO C96 Ruy Lopez: closed ] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Na5 Bc2 c5 [ECO C96 Ruy Lopez: closed, Rossolimo defence] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Na5 Bc2 c6 d4 Qc7 [ECO C96 Ruy Lopez: closed ] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Na5 Bc2 [ECO C95 Ruy Lopez: closed, Breyer, Simagin variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Nb8 d4 N8d7 Nh4 [ECO C95 Ruy Lopez: closed, Breyer, Gligori\'c variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Nb8 d4 N8d7 N1d2 Bb7 Bc2 c5 [ECO C95 Ruy Lopez: closed, Breyer, Borisenko variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Nb8 d4 N8d7 [ECO C95 Ruy Lopez: closed, Breyer, 10.d4] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Nb8 d4 [ECO C94 Ruy Lopez: closed, Breyer defence] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Nb8 [ECO C93 Ruy Lopez: closed, Smyslov defence] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 h6 [ECO C92 Ruy Lopez: closed, Flohr-Zaitsev system ] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Bb7 [ECO C92 Ruy Lopez: closed, Ragozin-Petrosian variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Nd7 [ECO C92 Ruy Lopez: closed, Kholmov variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 Be6 [ECO C92 Ruy Lopez: closed, Keres variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 a5 [ECO C92 Ruy Lopez: closed, 9.h3] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 h3 [ECO C91 Ruy Lopez: closed, Bogolyubov variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 d4 Bg4 [ECO C91 Ruy Lopez: closed, 9.d4] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 d4 [ECO C90 Ruy Lopez: closed, Suetin variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 a3 [ECO C90 Ruy Lopez: closed, Lutikov variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 Bc2 [ECO C90 Ruy Lopez: closed, Pilnik variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 d3 [ECO C90 Ruy Lopez: closed ] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d6 [ECO C89 Ruy Lopez: Marshall, Herman Steiner variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d5 ed e4 [ECO C89 Ruy Lopez: Marshall, main line, Spassky variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d5 ed Nd5 Ne5 Ne5 Re5 c6 d4 Bd6 Re1 Qh4 g3 Qh3 Be3 Bg4 Qd3 a8e8 Nd2 Re6 a4 Qh5 [ECO C89 Ruy Lopez: Marshall, main line, 14...Qh3] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d5 ed Nd5 Ne5 Ne5 Re5 c6 d4 Bd6 Re1 Qh4 g3 Qh3 [ECO C89 Ruy Lopez: Marshall, main line, 12.d2d4] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d5 ed Nd5 Ne5 Ne5 Re5 c6 d4 [ECO C89 Ruy Lopez: Marshall, Kevitz variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d5 ed Nd5 Ne5 Ne5 Re5 c6 Bd5 cd d4 Bd6 Re3 [ECO C89 Ruy Lopez: Marshall counter-attack, 11...c6] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d5 ed Nd5 Ne5 Ne5 Re5 c6 [ECO C89 Ruy Lopez: Marshall counter-attack] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 d5 [ECO C?? Ruy Lopez: closed, 8.c3] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o c3 [ECO C88 Ruy Lopez: closed, anti-Marshall 8.a4] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o a4 [ECO C88 Ruy Lopez: closed, 7...O-O] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 o-o [ECO C88 Ruy Lopez: Trajkovi\'c counter-attack] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 Bb7 [ECO C88 Ruy Lopez: Noah's ark trap] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 d6 d4 Nd4 Nd4 ed Qd4 c5 [ECO C88 Ruy Lopez: closed, 7...d6, 8.d4] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 d6 d4 [ECO C88 Ruy Lopez: closed, Balla variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 d6 c3 Na5 Bc2 c5 d4 Qc7 a4 [ECO C88 Ruy Lopez: closed, Leonhardt variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 d6 c3 Na5 Bc2 c5 d4 Qc7 h3 Nc6 d5 Nb8 N1d2 g5 [ECO C88 Ruy Lopez: closed] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 b5 Bb3 [ECO C79 Ruy Lopez: Kecskem\'et variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 d6 c3 o-o d4 Bd7 N1d2 Be8 [ECO C87 Ruy Lopez: closed, Averbach variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Re1 d6 [ECO C86 Ruy Lopez: Worrall attack, solid line] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Qe2 b5 Bb3 d6 [ECO C86 Ruy Lopez: Worrall attack, sharp line] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Qe2 b5 Bb3 o-o [ECO C86 Ruy Lopez: Worrall attack] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Qe2 [ECO C85 Ruy Lopez: Exchange variation doubly deferred ] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 Bc6 [ECO C84 Ruy Lopez: closed, Basque gambit ] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 d4 ed e5 Ne4 c3 [ECO C84 Ruy Lopez: closed, centre attack] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 d4 [ECO C84 Ruy Lopez: closed defence] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Be7 [ECO C83 Ruy Lopez: open, Breslau variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 c3 Be7 Re1 o-o Nd4 Ne5 [ECO C83 Ruy Lopez: open, Tarrasch trap] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 c3 Be7 Re1 o-o Nd4 Qd7 Ne6 fe Re4 [ECO C83 Ruy Lopez: open, 9...Be7, 10.Re1] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 c3 Be7 Re1 [ECO C83 Ruy Lopez: open, Malkin variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 c3 Be7 N1d2 o-o Qe2 [ECO C83 Ruy Lopez: open, classical defence] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 c3 Be7 [ECO C82 Ruy Lopez: open, Motzko attack, Nenarokov variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 c3 Bc5 Qd3 Ne7 [ECO C82 Ruy Lopez: open, Motzko attack] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 c3 Bc5 Qd3 [ECO C82 Ruy Lopez: open, Dilworth variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 c3 Bc5 N1d2 o-o Bc2 Nf2 [ECO C82 Ruy Lopez: open, St. Petersburg variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 c3 Bc5 N1d2 [ECO C82 Ruy Lopez: open, Italian variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 c3 Bc5 [ECO C82 Ruy Lopez: open, Berlin variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 c3 Nc5 [ECO C82 Ruy Lopez: open, 9.c3] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 c3 [ECO C81 Ruy Lopez: open, Howell attack, Adam variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 Qe2 Be7 c4 [ECO C81 Ruy Lopez: open, Howell attack, Ekstr\"om variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 Qe2 Be7 Rd1 o-o c4 bc Bc4 Qd7 [ECO C81 Ruy Lopez: open, Howell attack] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 Qe2 [ECO C80 Ruy Lopez: open, Bernstein variation, Karpov gambit] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 N1d2 Nc5 c3 d4 Ng5 [ECO C80 Ruy Lopez: open, Bernstein variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 N1d2 [ECO C80 Ruy Lopez: open, 8...Be6] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Be6 [ECO C80 Ruy Lopez: open, Zukertort variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de Ne7 [ECO C80 Ruy Lopez: open, 8.de] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 de [ECO C80 Ruy Lopez: open, Harksen gambit] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 c4 [ECO C80 Ruy Lopez: open, Berger variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 a4 Nd4 Nd4 ed Nc3 [ECO C80 Ruy Lopez: open, Schlechter defence] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 d5 a4 Nd4 [ECO C80 Ruy Lopez: open, 7.Bb3] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Bb3 [ECO C80 Ruy Lopez: open, Richter variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 d5 [ECO C80 Ruy Lopez: open, Friess attack] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 Ne5 [ECO C80 Ruy Lopez: open, 6.d4 b5] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 b5 [ECO C80 Ruy Lopez: open, Riga variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 ed [ECO C80 Ruy Lopez: open, 6.d4] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 d4 [ECO C80 Ruy Lopez: open, Knorre variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 Nc3 [ECO C80 Ruy Lopez: open, Tartakower variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 Qe2 [ECO C80 Ruy Lopez: open defence] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Ne4 [ECO C79 Ruy Lopez: Steinitz defence deferred, Boleslavsky variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o d6 Bc6 bc d4 Ne4 Re1 f5 de d5 Nc3 [ECO C79 Ruy Lopez: Steinitz defence deferred, Rubinstein variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o d6 Bc6 bc d4 Ne4 [ECO C79 Ruy Lopez: Steinitz defence deferred, Lipnitsky variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o d6 Bc6 bc d4 Bg4 [ECO C79 Ruy Lopez: Steinitz defence deferred ] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o d6 [ECO C78 Ruy Lopez: M\"oller defence] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o Bc5 [ECO C78 Ruy Lopez: Archangelsk variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o b5 Bb3 Bb7 [ECO C78 Ruy Lopez: Rabinovich variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o b5 Bb3 d6 Ng5 d5 ed Nd4 Re1 Bc5 Re5 Kf8 [ECO C78 Ruy Lopez: ...b5 & ...d6] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o b5 Bb3 d6 [ECO C78 Ruy Lopez: Wing attack] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o b5 Bb3 Be7 a4 [ECO C78 Ruy Lopez: 5.O-O] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 o-o [ECO C77 Ruy Lopez: Morphy defence, Duras variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 d3 d6 c4 [ECO C77 Ruy Lopez: Anderssen variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 d3 [ECO C77 Ruy Lopez: Wormald attack, Gr\"unfeld variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 Qe2 b5 Bb3 Be7 d4 d6 c3 Bg4 [ECO C77 Ruy Lopez: Wormald attack] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 Qe2 [ECO C77 Ruy Lopez: Treybal variation ] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 Bc6 [ECO C77 Ruy Lopez: four knights variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 Nc3 [ECO C77 Ruy Lopez: Morphy defence] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nf6 [ECO C76 Ruy Lopez: modern Steinitz defence, fianchetto variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 d6 c3 Bd7 d4 g6 [ECO C75 Ruy Lopez: modern Steinitz defence, Rubinstein variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 d6 c3 Bd7 d4 N8e7 [ECO C75 Ruy Lopez: modern Steinitz defence] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 d6 c3 Bd7 [ECO C74 Ruy Lopez: Siesta, Kopayev variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 d6 c3 f5 ef Bf5 o-o [ECO C74 Ruy Lopez: modern Steinitz defence, siesta variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 d6 c3 f5 [ECO C74 Ruy Lopez: modern Steinitz defence] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 d6 c3 [ECO C73 Ruy Lopez: modern Steinitz defence, Alapin variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 d6 Bc6 bc d4 f6 [ECO C73 Ruy Lopez: modern Steinitz defence, Richter variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 d6 Bc6 bc d4 [ECO C?? Ruy Lopez: modern Steinitz defence, exchange variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 d6 Bc6 bc [ECO C72 Ruy Lopez: modern Steinitz defence, 5.O-O] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 d6 o-o [ECO C71 Ruy Lopez: modern Steinitz defence, Duras variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 d6 c4 [ECO C71 Ruy Lopez: modern Steinitz defence, Three knights variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 d6 Nc3 [ECO C71 Ruy Lopez: Noah's ark trap] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 d6 d4 b5 Bb3 Nd4 Nd4 ed Qd4 c5 [ECO C71 Ruy Lopez: modern Steinitz defence] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 d6 [ECO C70 Ruy Lopez: Schliemann defence deferred] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 f5 [ECO C70 Ruy Lopez: Taimanov variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 b5 Bb3 Na5 [ECO C70 Ruy Lopez: Graz variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 b5 Bb3 Bc5 [ECO C70 Ruy Lopez: Caro variation] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 b5 [ECO C70 Ruy Lopez: Classical defence deferred] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Bc5 [ECO C70 Ruy Lopez: Alapin's defence deferred] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Bb4 [ECO C70 Ruy Lopez: Bird's defence deferred] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 Nd4 [ECO C70 Ruy Lopez: Cozio defence deferred] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 N8e7 [ECO C70 Ruy Lopez: fianchetto defence deferred] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 g6 [ECO C70 Ruy Lopez] e4 e5 Nf3 Nc6 Bb5 a6 Ba4 [ECO C69 Ruy Lopez: exchange, Bronstein variation] e4 e5 Nf3 Nc6 Bb5 a6 Bc6 dc o-o Qd6 [ECO C69 Ruy Lopez: exchange, Gligori\'c variation] e4 e5 Nf3 Nc6 Bb5 a6 Bc6 dc o-o f6 [ECO C69 Ruy Lopez: exchange variation, Alapin gambit] e4 e5 Nf3 Nc6 Bb5 a6 Bc6 dc o-o Bg4 h3 h5 [ECO C69 Ruy Lopez: exchange variation, 5.O-O] e4 e5 Nf3 Nc6 Bb5 a6 Bc6 dc o-o [ECO C68 Ruy Lopez: exchange, Romanovsky variation] e4 e5 Nf3 Nc6 Bb5 a6 Bc6 dc Nc3 f6 d3 [ECO C68 Ruy Lopez: exchange, Keres variation] e4 e5 Nf3 Nc6 Bb5 a6 Bc6 dc Nc3 [ECO C68 Ruy Lopez: exchange, Alekhine variation] e4 e5 Nf3 Nc6 Bb5 a6 Bc6 dc d4 ed Qd4 Qd4 Nd4 Bd7 [ECO C68 Ruy Lopez: exchange variation] e4 e5 Nf3 Nc6 Bb5 a6 Bc6 [ECO C67 Ruy Lopez: Berlin defence, Rosenthal variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o Ne4 d4 a6 [ECO C67 Ruy Lopez: Berlin defence, Minckwitz variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o Ne4 d4 Be7 de [ECO C67 Ruy Lopez: Berlin defence, Trifunovi\'c variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o Ne4 d4 Be7 Qe2 d5 [ECO C67 Ruy Lopez: Berlin defence, Cordel variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o Ne4 d4 Be7 Qe2 Nd6 Bc6 bc de Nf5 [ECO C67 Ruy Lopez: Berlin defence, Winawer attack] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o Ne4 d4 Be7 Qe2 Nd6 Bc6 bc de Nb7 Nd4 [ECO C67 Ruy Lopez: Berlin defence, Pillsbury variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o Ne4 d4 Be7 Qe2 Nd6 Bc6 bc de Nb7 b3 [ECO C67 Ruy Lopez: Berlin defence, Zukertort variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o Ne4 d4 Be7 Qe2 Nd6 Bc6 bc de Nb7 c4 [ECO C67 Ruy Lopez: Berlin defence, Rio de Janeiro variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o Ne4 d4 Be7 Qe2 Nd6 Bc6 bc de Nb7 Nc3 o-o Re1 Nc5 Nd4 Ne6 Be3 Nd4 Bd4 c5 [ECO C67 Ruy Lopez: open Berlin defence, 5...Be7] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o Ne4 d4 Be7 [ECO C67 Ruy Lopez: open Berlin defence, Showalter variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o Ne4 d4 Nd6 Ba4 [ECO C67 Ruy Lopez: open Berlin defence, l'Hermet variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o Ne4 d4 Nd6 de [ECO C67 Ruy Lopez: Berlin defence, open variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o Ne4 [ECO C66 Ruy Lopez: closed Berlin defence, Chigorin variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o d6 d4 Nd7 [ECO C66 Ruy Lopez: closed Berlin defence, Wolf variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o d6 d4 Bd7 Nc3 ed [ECO C66 Ruy Lopez: closed Berlin defence, Showalter variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o d6 d4 Bd7 Nc3 Be7 Bc6 [ECO C66 Ruy Lopez: closed Berlin defence, Bernstein variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o d6 d4 Bd7 Nc3 Be7 Bg5 [ECO C66 Ruy Lopez: Berlin defence, Tarrasch trap] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o d6 d4 Bd7 Nc3 Be7 Re1 o-o [ECO C66 Ruy Lopez: Berlin defence, hedgehog variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o d6 d4 Bd7 Nc3 Be7 [ECO C66 Ruy Lopez: Berlin defence, 4.O-O, d6] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o d6 [ECO C65 Ruy Lopez: Berlin defence, Beverwijk variation] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o Bc5 [ECO C65 Ruy Lopez: Berlin defence, 4.O-O] e4 e5 Nf3 Nc6 Bb5 Nf6 o-o [ECO C65 Ruy Lopez: Berlin defence, Kaufmann variation] e4 e5 Nf3 Nc6 Bb5 Nf6 d3 Bc5 Be3 [ECO C65 Ruy Lopez: Berlin defence, Duras variation] e4 e5 Nf3 Nc6 Bb5 Nf6 d3 d6 c4 [ECO C65 Ruy Lopez: Berlin defence, Anderssen variation] e4 e5 Nf3 Nc6 Bb5 Nf6 d3 d6 Bc6 [ECO C65 Ruy Lopez: Berlin defence, Mortimer trap] e4 e5 Nf3 Nc6 Bb5 Nf6 d3 Ne7 Ne5 c6 [ECO C65 Ruy Lopez: Berlin defence, Mortimer variation] e4 e5 Nf3 Nc6 Bb5 Nf6 d3 Ne7 [ECO C65 Ruy Lopez: Berlin defence, Nyholm attack] e4 e5 Nf3 Nc6 Bb5 Nf6 d4 ed o-o [ECO C65 Ruy Lopez: Berlin defence] e4 e5 Nf3 Nc6 Bb5 Nf6 [ECO C64 Ruy Lopez: Cordel gambit] e4 e5 Nf3 Nc6 Bb5 Bc5 c3 f5 [ECO C64 Ruy Lopez: classical defence, Boden variation] e4 e5 Nf3 Nc6 Bb5 Bc5 c3 Qe7 [ECO C64 Ruy Lopez: classical defence, Charousek variation] e4 e5 Nf3 Nc6 Bb5 Bc5 c3 Bb6 [ECO C64 Ruy Lopez: classical defence, Benelux variation ] e4 e5 Nf3 Nc6 Bb5 Bc5 c3 Nf6 o-o o-o d4 Bb6 [ECO C64 Ruy Lopez: classical defence, 4.c3] e4 e5 Nf3 Nc6 Bb5 Bc5 c3 [ECO C64 Ruy Lopez: classical defence, Zaitsev variation] e4 e5 Nf3 Nc6 Bb5 Bc5 o-o Nd4 b4 [ECO C64 Ruy Lopez: classical defence] e4 e5 Nf3 Nc6 Bb5 Bc5 [ECO C63 Ruy Lopez: Schliemann defence, Berger variation] e4 e5 Nf3 Nc6 Bb5 f5 Nc3 [ECO C63 Ruy Lopez: Schliemann defence] e4 e5 Nf3 Nc6 Bb5 f5 [ECO C62 Ruy Lopez: old Steinitz defence, semi-Duras variation] e4 e5 Nf3 Nc6 Bb5 d6 d4 Bd7 c4 [ECO C62 Ruy Lopez: old Steinitz defence, Nimzovich attack] e4 e5 Nf3 Nc6 Bb5 d6 d4 Bd7 Nc3 Nf6 Bc6 [ECO C62 Ruy Lopez: old Steinitz defence] e4 e5 Nf3 Nc6 Bb5 d6 [ECO C61 Ruy Lopez: Bird's defence, Paulsen variation] e4 e5 Nf3 Nc6 Bb5 Nd4 Nd4 ed o-o Ne7 [ECO C61 Ruy Lopez: Bird's defence] e4 e5 Nf3 Nc6 Bb5 Nd4 [ECO C60 Ruy Lopez: Cozio defence, Paulsen variation] e4 e5 Nf3 Nc6 Bb5 N8e7 Nc3 g6 [ECO C60 Ruy Lopez: Cozio defence] e4 e5 Nf3 Nc6 Bb5 N8e7 [ECO C60 Ruy Lopez: fianchetto defence] e4 e5 Nf3 Nc6 Bb5 g6 [ECO C60 Ruy Lopez: Alapin's defence] e4 e5 Nf3 Nc6 Bb5 Bb4 [ECO C60 Ruy Lopez: Brentano defence] e4 e5 Nf3 Nc6 Bb5 g5 [ECO C60 Ruy Lopez: Vinogradov variation] e4 e5 Nf3 Nc6 Bb5 Qe7 [ECO C60 Ruy Lopez: Lucena defence] e4 e5 Nf3 Nc6 Bb5 Be7 [ECO C60 Ruy Lopez: Pollock defence] e4 e5 Nf3 Nc6 Bb5 Na5 [ECO C60 Ruy Lopez: Nuremberg variation] e4 e5 Nf3 Nc6 Bb5 f6 [ECO C60 Ruy Lopez ] e4 e5 Nf3 Nc6 Bb5 [ECO C59 two knights defence: Steinitz variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Na5 Bb5 c6 dc bc Be2 h6 Nh3 [ECO C59 two knights defence: G\"oring variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Na5 Bb5 c6 dc bc Be2 h6 Nf3 e4 Ne5 Qc7 [ECO C59 two knights defence: Knorre variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Na5 Bb5 c6 dc bc Be2 h6 Nf3 e4 Ne5 Bd6 d4 Qc7 Bd2 [ECO C59 Two knights defence] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Na5 Bb5 c6 dc bc Be2 h6 [ECO C?? Two knights defence] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Na5 Bb5 c6 dc bc Be2 [ECO C58 two knights defence: Blackburne variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Na5 Bb5 c6 dc bc Qf3 cb [ECO C58 two knights defence: Colman variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Na5 Bb5 c6 dc bc Qf3 Rb8 [ECO C58 two knights defence: Paoli variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Na5 Bb5 c6 dc bc Qf3 Qc7 Bd3 [ECO C58 two knights defence: Bogolyubov variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Na5 Bb5 c6 dc bc Qf3 [ECO C58 Two knights defence] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Na5 Bb5 [ECO C58 two knights defence: Mar\'oczy variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Na5 d3 h6 Nf3 e4 Qe2 Nc4 dc Be7 [ECO C58 two knights defence: Yankovich variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Na5 d3 h6 Nf3 e4 Qe2 Nc4 dc Bc5 N3d2 [ECO C58 two knights defence: Kieseritsky variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Na5 d3 [ECO C?? two knights defence] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Na5 [ECO C57 two knights defence: Fegatello attack, Polerio defence] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Nd5 Nf7 Kf7 Qf3 Ke6 Nc3 Ne7 [ECO C57 two knights defence: Fegatello attack, Leonhardt variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Nd5 Nf7 Kf7 Qf3 Ke6 Nc3 Nb4 Qe4 c6 a3 Na6 d4 Nc7 [ECO C57 two knights defence: Fegatello attack] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Nd5 Nf7 [ECO C57 two knights defence: Pincus variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Nd5 d4 Bb4 [ECO C57 two knights defence: Lolli attack] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Nd5 d4 [ECO C57 two knights defence: Fritz, Gruber variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Nd4 c3 b5 Bf1 Nd5 Ne4 [ECO C57 two knights defence: Fritz variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed Nd4 [ECO C57 two knights defence: Ulvestad variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 d5 ed b5 [ECO C57 two knights defence: Wilkes Barre variation] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 Bc5 [ECO C57 Two knights defence] e4 e5 Nf3 Nc6 Bc4 Nf6 Ng5 [ECO C56 two knights defence: Canal variation] e4 e5 Nf3 Nc6 Bc4 Nf6 d4 ed o-o Ne4 Re1 d5 Nc3 [ECO C56 two knights defence: Yurdansky attack] e4 e5 Nf3 Nc6 Bc4 Nf6 d4 ed o-o Ne4 Re1 d5 Bd5 Qd5 Nc3 Qa5 Ne4 Be6 Bg5 h6 Bh4 g5 Nf6 Ke7 b4 [ECO C56 Two knights defence] e4 e5 Nf3 Nc6 Bc4 Nf6 d4 ed o-o Ne4 [ECO C55 two knights: Max Lange attack, Krause variation] e4 e5 Nf3 Nc6 Bc4 Nf6 d4 ed o-o Bc5 e5 Ng4 c3 [ECO C55 two knights: Max Lange attack, Steinitz variation] e4 e5 Nf3 Nc6 Bc4 Nf6 d4 ed o-o Bc5 e5 Ng4 [ECO C55 two knights: Max Lange attack, Schlechter variation] e4 e5 Nf3 Nc6 Bc4 Nf6 d4 ed o-o Bc5 e5 d5 ef dc Re1 Be6 fg [ECO C55 two knights: Max Lange attack, Loman defence] e4 e5 Nf3 Nc6 Bc4 Nf6 d4 ed o-o Bc5 e5 d5 ef dc Re1 Be6 Ng5 g6 [ECO C55 two knights: Max Lange attack, Rubinstein variation] e4 e5 Nf3 Nc6 Bc4 Nf6 d4 ed o-o Bc5 e5 d5 ef dc Re1 Be6 Ng5 Qd5 Nc3 Qf5 N3e4 Bf8 [ECO C55 two knights: Max Lange attack, Marshall variation] e4 e5 Nf3 Nc6 Bc4 Nf6 d4 ed o-o Bc5 e5 d5 ef dc Re1 Be6 Ng5 Qd5 Nc3 Qf5 N3e4 [ECO C55 two knights: Max Lange attack, Berger variation] e4 e5 Nf3 Nc6 Bc4 Nf6 d4 ed o-o Bc5 e5 d5 ef dc Re1 Be6 Ng5 Qd5 Nc3 Qf5 g4 Qg6 N3e4 Bb6 f4 o-o-o [ECO C55 two knights: Max Lange attack] e4 e5 Nf3 Nc6 Bc4 Nf6 d4 ed o-o Bc5 e5 [ECO C55 Two knights defence] e4 e5 Nf3 Nc6 Bc4 Nf6 d4 ed o-o [ECO C55 Two knights defence, Perreux variation] e4 e5 Nf3 Nc6 Bc4 Nf6 d4 ed Ng5 [ECO C55 Two knights defence, Keidanz variation] e4 e5 Nf3 Nc6 Bc4 Nf6 d4 ed e5 d5 Bb5 Ne4 Nd4 Bc5 Nc6 Bf2 Kf1 Qh4 [ECO C55 Two knights defence] e4 e5 Nf3 Nc6 Bc4 Nf6 d4 [ECO C55 Two knights defence ] e4 e5 Nf3 Nc6 Bc4 Nf6 d3 [ECO C55 Giuoco piano: Holzhausen attack] e4 e5 Nf3 Nc6 Bc4 Nf6 o-o Bc5 d4 Bd4 Nd4 Nd4 Bg5 d6 f4 Qe7 fe de Nc3 [ECO C55 Giuoco piano] e4 e5 Nf3 Nc6 Bc4 Nf6 o-o Bc5 d4 Bd4 Nd4 Nd4 Bg5 d6 [ECO C55 Giuoco piano: Rosentreter variation] e4 e5 Nf3 Nc6 Bc4 Nf6 o-o Bc5 d4 Bd4 Nd4 Nd4 Bg5 h6 Bh4 g5 f4 [ECO C55 Two knights defence] e4 e5 Nf3 Nc6 Bc4 Nf6 [ECO C54 Giuoco Piano: M\"oller, bayonet attack] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 ed cd Bb4 Nc3 Ne4 o-o Bc3 d5 Bf6 Re1 Ne7 Re4 d6 g4 [ECO C54 Giuoco Piano: Therkatz-Herzog variation] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 ed cd Bb4 Nc3 Ne4 o-o Bc3 d5 Bf6 Re1 Ne7 Re4 d6 Bg5 Bg5 Ng5 o-o Nh7 [ECO C54 Giuoco Piano: M\"oller attack] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 ed cd Bb4 Nc3 Ne4 o-o Bc3 d5 [ECO C54 Giuoco Piano: Steinitz variation] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 ed cd Bb4 Nc3 Ne4 o-o Bc3 bc d5 Ba3 [ECO C54 Giuoco Piano] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 ed cd Bb4 Nc3 Ne4 o-o Bc3 [ECO C54 Giuoco Piano: Aitken variation] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 ed cd Bb4 Nc3 Ne4 o-o Nc3 bc Bc3 Ba3 [ECO C54 Giuoco Piano: Bernstein variation] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 ed cd Bb4 Nc3 Ne4 o-o Nc3 bc Bc3 Qb3 d5 [ECO C54 Giuoco Piano: Greco variation] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 ed cd Bb4 Nc3 Ne4 o-o Nc3 [ECO C54 Giuoco Piano: Greco's attack] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 ed cd Bb4 Nc3 [ECO C54 Giuoco Piano: Cracow variation] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 ed cd Bb4 Kf1 [ECO C54 Giuoco Piano: Krause variation] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 ed cd Bb4 Bd2 Ne4 Bb4 Nb4 Bf7 Kf7 Qb3 d5 Ne5 Kf6 f3 [ECO C54 Giuoco Piano] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 ed cd [ECO C53 Giuoco Piano: Anderssen variation] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 ed e5 d5 Bb5 Ne4 cd Bb4 [ECO C53 Giuoco Piano] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 ed e5 d5 [ECO C53 Giuoco Piano: Ghulam Kassim variation] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 ed e5 Ne4 Bd5 Nf2 Kf2 dc Kg3 [ECO C53 Giuoco Piano] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 d4 [ECO C53 Giuoco Piano: Bird's attack] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 b4 [ECO C53 Giuoco Piano] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Nf6 [ECO C53 Giuoco Piano: Eisinger variation] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Qe7 d4 Bb6 d5 Nb8 d6 [ECO C53 Giuoco Piano: Mestel variation] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Qe7 d4 Bb6 Bg5 [ECO C53 Giuoco Piano: Tarrasch variation] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Qe7 d4 Bb6 o-o Nf6 a4 a6 Re1 d6 h3 [ECO C53 Giuoco Piano: centre-holding variation] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Qe7 d4 Bb6 [ECO C53 Giuoco Piano: close variation] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 Qe7 [ECO C53 Giuoco Piano: LaBourdonnais variation] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 d6 d4 ed cd Bb6 [ECO C53 Giuoco Piano] e4 e5 Nf3 Nc6 Bc4 Bc5 c3 [ECO C52 Evans gambit: Alapin-Steinitz variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 o-o d6 d4 Bg4 [ECO C52 Evans gambit: Sanders-Alapin variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 o-o d6 d4 Bd7 [ECO C52 Evans gambit: Lasker defence] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 o-o d6 d4 Bb6 [ECO C52 Evans gambit: Waller attack] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 o-o d6 d4 ed Qb3 [ECO C52 Evans gambit] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 o-o d6 [ECO C52 Evans gambit: Richardson attack] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 o-o Nf6 d4 o-o Ne5 [ECO C52 Evans gambit] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 o-o [ECO C52 Evans gambit: Sokolsky variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 d4 d6 Bg5 [ECO C52 Evans gambit: Levenfish variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 d4 d6 Qb3 Qd7 de de o-o Bb6 Ba3 Na5 Ne5 [ECO C52 Evans gambit: Tartakower attack] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 d4 d6 Qb3 [ECO C52 Evans gambit] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 d4 d6 [ECO C52 Evans gambit: Leonhardt variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 d4 b5 [ECO C52 Evans gambit: compromised defence, Potter variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 d4 ed o-o dc Qb3 Qf6 e5 Qg6 Nc3 N8e7 Rd1 [ECO C52 Evans gambit: compromised defence, Paulsen variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 d4 ed o-o dc Qb3 Qf6 e5 Qg6 Nc3 N8e7 Ba3 [ECO C52 Evans gambit: compromised defence] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 d4 ed o-o dc [ECO C52 Evans gambit] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Ba5 [ECO C51 Evans gambit: Cordel variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Be7 d4 Na5 [ECO C51 Evans gambit: 5...Be7] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Be7 [ECO C51 Evans gambit: Mayet defence] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Bf8 [ECO C51 Evans gambit: Stone-Ware variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Bd6 [ECO C51 Evans gambit: Fraser-Mortimer attack] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Bc5 d4 ed o-o d6 cd Bb6 Nc3 Bg4 Qa4 Bd7 Qb3 Na5 Bf7 Kf8 Qc2 [ECO C51 Evans gambit: Fraser attack] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Bc5 d4 ed o-o d6 cd Bb6 Nc3 Bg4 Qa4 [ECO C51 Evans gambit] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Bc5 d4 ed o-o d6 cd Bb6 Nc3 Bg4 [ECO C51 Evans gambit: Steinitz variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Bc5 d4 ed o-o d6 cd Bb6 Nc3 Na5 Bg5 f6 Be3 [ECO C51 Evans gambit: G\"oring attack] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Bc5 d4 ed o-o d6 cd Bb6 Nc3 Na5 Bg5 [ECO C51 Evans gambit: Morphy attack] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Bc5 d4 ed o-o d6 cd Bb6 Nc3 [ECO C51 Evans gambit: Paulsen variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Bc5 d4 ed o-o d6 cd Bb6 d5 Na5 Bb2 Ne7 [ECO C51 Evans gambit: Ulvestad variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Bc5 d4 ed o-o d6 cd Bb6 d5 Na5 Bb2 [ECO C51 Evans gambit: normal variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 c3 Bc5 d4 ed o-o d6 cd Bb6 [ECO C51 Evans gambit] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb4 [ECO C51 Evans counter-gambit] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 d5 [ECO C51 Evans gambit declined, Cordel variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb6 Bb2 [ECO C51 Evans gambit declined, Showalter variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb6 a4 a6 Nc3 [ECO C51 Evans gambit declined, 5.a4] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb6 a4 [ECO C51 Evans gambit declined, Hicken variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb6 b5 Na5 Ne5 Qg5 Qf3 Qe5 Qf7 Kd8 Bb2 [ECO C51 Evans gambit declined, V\'asquez variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb6 b5 Na5 Ne5 Qg5 Bf7 Ke7 Qh5 [ECO C51 Evans gambit declined, Hirschbach variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb6 b5 Na5 Ne5 Qg5 [ECO C51 Evans gambit declined, Pavlov variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb6 b5 Na5 Ne5 Nh6 d4 d6 Bh6 de Bg7 Rg8 Bf7 Kf7 Be5 Qg5 Nd2 [ECO C51 Evans gambit declined, Lange variation] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 Bb6 b5 Na5 Ne5 Nh6 [ECO C51 Evans gambit declined] e4 e5 Nf3 Nc6 Bc4 Bc5 b4 [ECO C50 Giuoco Pianissimo: Canal variation] e4 e5 Nf3 Nc6 Bc4 Bc5 d3 Nf6 Nc3 d6 Bg5 [ECO C50 Giuoco Pianissimo: Italian four knights variation] e4 e5 Nf3 Nc6 Bc4 Bc5 d3 Nf6 Nc3 [ECO C50 Giuoco Pianissimo] e4 e5 Nf3 Nc6 Bc4 Bc5 d3 Nf6 [ECO C50 Giuoco Pianissimo: Dubois variation] e4 e5 Nf3 Nc6 Bc4 Bc5 d3 f5 Ng5 f4 [ECO C50 Giuoco Pianissimo] e4 e5 Nf3 Nc6 Bc4 Bc5 d3 [ECO C50 Giuoco Piano: Jerome gambit] e4 e5 Nf3 Nc6 Bc4 Bc5 Bf7 [ECO C50 Giuoco Piano: four knights variation] e4 e5 Nf3 Nc6 Bc4 Bc5 Nc3 Nf6 [ECO C50 Giuoco Piano] e4 e5 Nf3 Nc6 Bc4 Bc5 [ECO C50 Hungarian defence: Tartakower variation] e4 e5 Nf3 Nc6 Bc4 Be7 d4 ed c3 Nf6 e5 Ne4 [ECO C50 Hungarian defence] e4 e5 Nf3 Nc6 Bc4 Be7 [ECO C50 Rousseau gambit] e4 e5 Nf3 Nc6 Bc4 f5 [ECO C50 Blackburne shilling gambit] e4 e5 Nf3 Nc6 Bc4 Nd4 Ne5 Qg5 Nf7 Qg2 Rf1 Qe4 Be2 Nf3 [ECO C50 King's pawn game] e4 e5 Nf3 Nc6 Bc4 [ECO C49 Four knights: Nimzovich variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bb4 o-o o-o Bc6 [ECO C49 Four knights: symmetrical, Mar\'oczy system] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bb4 o-o o-o d3 d6 Ne2 [ECO C49 Four knights: symmetrical, Tarrasch variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bb4 o-o o-o d3 d6 Bg5 Be6 [ECO C49 Four knights: symmetrical, Blake variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bb4 o-o o-o d3 d6 Bg5 Ne7 Nh4 c6 Bc4 d5 Bb3 Qd6 [ECO C49 Four knights: symmetrical, Pillsbury variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bb4 o-o o-o d3 d6 Bg5 Ne7 [ECO C49 Four knights: symmetrical, Capablanca variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bb4 o-o o-o d3 d6 Bg5 Bc3 bc Qe7 Re1 Nd8 d4 Bg4 [ECO C49 Four knights: symmetrical, Metger unpin] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bb4 o-o o-o d3 d6 Bg5 Bc3 bc Qe7 [ECO C49 Four knights: symmetrical variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bb4 o-o o-o d3 d6 [ECO C49 Four knights: Svenonius variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bb4 o-o o-o d3 Bc3 bc d5 [ECO C49 Four knights: Janowski variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bb4 o-o o-o d3 Bc3 bc d6 Re1 [ECO C49 Four knights] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bb4 o-o o-o d3 Bc3 [ECO C49 Four knights: Alatortsev variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bb4 o-o o-o d3 Qe7 Ne2 d5 [ECO C49 Four knights: double Ruy Lopez] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bb4 o-o o-o d3 [ECO C49 Four knights: Gunsberg counter-attack] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bb4 o-o o-o Nd5 Nd5 ed e4 [ECO C49 Four knights: double Ruy Lopez] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bb4 [ECO C48 Four knights: Rubinstein counter-gambit, Henneberger variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Nd4 o-o [ECO C48 Four knights: Rubinstein counter-gambit, exchange variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Nd4 Nd4 [ECO C48 Four knights: Rubinstein counter-gambit Mar\'oczy variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Nd4 Be2 Nf3 Bf3 Bc5 o-o o-o d3 d6 Na4 Bb6 [ECO C48 Four knights: Rubinstein counter-gambit, 5.Be2] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Nd4 Be2 [ECO C48 Four knights: Rubinstein counter-gambit, Bogolyubov variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Nd4 Ne5 Qe7 f4 [ECO C48 Four knights: Rubinstein counter-gambit] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Nd4 [ECO C48 Four knights: Marshall variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bc5 o-o o-o Ne5 Nd4 [ECO C48 Four knights: Bardeleben variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bc5 o-o o-o Ne5 Ne5 d4 Bd6 f4 Nc6 e5 Bb4 [ECO C48 Four knights: Spanish, classical defence] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 Bc5 [ECO C48 Four knights: Spielmann variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 a6 Bc6 dc Ne5 Ne4 Ne4 Qd4 o-o Qe5 Re1 Be6 d4 Qd5 [ECO C48 Four knights: Ranken variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 a6 Bc6 [ECO C48 Four knights: Spanish variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bb5 [ECO C47 Four knights: Belgrade gambit] e4 e5 Nf3 Nc6 Nc3 Nf6 d4 ed Nd5 [ECO C47 Four knights: Scotch, 4...exd4] e4 e5 Nf3 Nc6 Nc3 Nf6 d4 ed [ECO C47 Four knights: Scotch, Krause variation] e4 e5 Nf3 Nc6 Nc3 Nf6 d4 Bb4 Ne5 [ECO C47 Four knights: Scotch variation] e4 e5 Nf3 Nc6 Nc3 Nf6 d4 [ECO C46 Four knights: Gunsberg variation] e4 e5 Nf3 Nc6 Nc3 Nf6 a3 [ECO C46 Four knights: Italian variation] e4 e5 Nf3 Nc6 Nc3 Nf6 Bc4 [ECO C46 Four knights: Schultze-M\"uller gambit] e4 e5 Nf3 Nc6 Nc3 Nf6 Ne5 [ECO C46 Four knights game] e4 e5 Nf3 Nc6 Nc3 Nf6 [ECO C46 Three knights: Steinitz, Rosenthal variation] e4 e5 Nf3 Nc6 Nc3 g6 d4 ed Nd5 [ECO C46 Three knights: Steinitz variation] e4 e5 Nf3 Nc6 Nc3 g6 [ECO C46 Three knights: Winawer defence ] e4 e5 Nf3 Nc6 Nc3 f5 [ECO C46 Three knights: Schlechter variation] e4 e5 Nf3 Nc6 Nc3 Bb4 Nd5 Nf6 [ECO C46 Three knights game] e4 e5 Nf3 Nc6 Nc3 [ECO C45 Scotch: Romanishin variation] e4 e5 Nf3 Nc6 d4 ed Nd4 Bc5 Nb3 Bb4 [ECO C45 Scotch: Potter variation] e4 e5 Nf3 Nc6 d4 ed Nd4 Bc5 Nb3 [ECO C45 Scotch: Blumenfeld attack] e4 e5 Nf3 Nc6 d4 ed Nd4 Bc5 Be3 Qf6 Nb5 [ECO C45 Scotch: Meitner variation] e4 e5 Nf3 Nc6 d4 ed Nd4 Bc5 Be3 Qf6 c3 N8e7 Nc2 [ECO C45 Scotch: Paulsen, Gunsberg defence] e4 e5 Nf3 Nc6 d4 ed Nd4 Bc5 Be3 Qf6 c3 N8e7 Bb5 Nd8 [ECO C45 Scotch: Paulsen attack] e4 e5 Nf3 Nc6 d4 ed Nd4 Bc5 Be3 Qf6 c3 N8e7 Bb5 [ECO C45 Scotch: Gottschall variation] e4 e5 Nf3 Nc6 d4 ed Nd4 Bc5 Be3 Qf6 c3 N8e7 Qd2 d5 Nb5 Be3 Qe3 o-o Nc7 Rb8 Nd5 Nd5 ed Nb4 [ECO C45 Scotch: Blackburne attack] e4 e5 Nf3 Nc6 d4 ed Nd4 Bc5 Be3 Qf6 c3 N8e7 Qd2 [ECO C45 Scotch game] e4 e5 Nf3 Nc6 d4 ed Nd4 Bc5 [ECO C45 Scotch: Tartakower variation] e4 e5 Nf3 Nc6 d4 ed Nd4 Nf6 Nc6 bc Nd2 [ECO C45 Scotch: Mieses variation] e4 e5 Nf3 Nc6 d4 ed Nd4 Nf6 Nc6 bc e5 [ECO C45 Scotch: Schmidt variation] e4 e5 Nf3 Nc6 d4 ed Nd4 Nf6 [ECO C45 Scotch: Steinitz variation] e4 e5 Nf3 Nc6 d4 ed Nd4 Qh4 Nc3 [ECO C45 Scotch: Fraser attack] e4 e5 Nf3 Nc6 d4 ed Nd4 Qh4 Nf3 [ECO C45 Scotch: Rosenthal variation] e4 e5 Nf3 Nc6 d4 ed Nd4 Qh4 Nb5 Bb4 Bd2 Qe4 Be2 Kd8 o-o Bd2 Nd2 Qg6 [ECO C45 Scotch game] e4 e5 Nf3 Nc6 d4 ed Nd4 Qh4 Nb5 Bb4 Bd2 [ECO C45 Scotch: Berger variation] e4 e5 Nf3 Nc6 d4 ed Nd4 Qh4 Nb5 Bb4 Nd2 Qe4 Be2 Qg2 Bf3 Qh3 Nc7 Kd8 Na8 Nf6 a3 [ECO C45 Scotch: Horwitz attack] e4 e5 Nf3 Nc6 d4 ed Nd4 Qh4 Nb5 [ECO C45 Scotch: Pulling counter-attack] e4 e5 Nf3 Nc6 d4 ed Nd4 Qh4 [ECO C45 Scotch: Ghulam Kassim variation] e4 e5 Nf3 Nc6 d4 ed Nd4 Nd4 Qd4 d6 Bd3 [ECO C45 Scotch game] e4 e5 Nf3 Nc6 d4 ed Nd4 [ECO C44 Scotch gambit: Dubois-R\'eti defence] e4 e5 Nf3 Nc6 d4 ed Bc4 Nf6 [ECO C44 Scotch gambit: Benima defence] e4 e5 Nf3 Nc6 d4 ed Bc4 Be7 [ECO C44 Scotch gambit: Cochrane variation] e4 e5 Nf3 Nc6 d4 ed Bc4 Bb4 c3 dc bc Ba5 e5 [ECO C44 Scotch gambit] e4 e5 Nf3 Nc6 d4 ed Bc4 Bb4 c3 dc bc [ECO C44 Scotch gambit: Hanneken variation] e4 e5 Nf3 Nc6 d4 ed Bc4 Bb4 c3 dc o-o cb Bb2 Nf6 Ng5 o-o e5 Ne5 [ECO C44 Scotch gambit] e4 e5 Nf3 Nc6 d4 ed Bc4 Bb4 [ECO C44 Scotch gambit: Vitzhum attack] e4 e5 Nf3 Nc6 d4 ed Bc4 Bc5 Ng5 Nh6 Qh5 [ECO C44 Scotch gambit: Cochrane-Shumov defence] e4 e5 Nf3 Nc6 d4 ed Bc4 Bc5 Ng5 Nh6 Nf7 Nf7 Bf7 Kf7 Qh5 g6 Qc5 d5 [ECO C44 Scotch gambit] e4 e5 Nf3 Nc6 d4 ed Bc4 Bc5 Ng5 [ECO C44 Scotch gambit: Anderssen counter-attack] e4 e5 Nf3 Nc6 d4 ed Bc4 Bc5 o-o d6 c3 Bg4 [ECO C44 Scotch gambit] e4 e5 Nf3 Nc6 d4 ed Bc4 [ECO C44 Scotch: G\"oring gambit, Bardeleben variation] e4 e5 Nf3 Nc6 d4 ed c3 dc Nc3 Bb4 Bc4 Nf6 [ECO C44 Scotch: G\"oring gambit] e4 e5 Nf3 Nc6 d4 ed c3 dc Nc3 Bb4 [ECO C44 Scotch: Sea-cadet mate] e4 e5 Nf3 Nc6 d4 ed c3 dc Nc3 d6 Bc4 Bg4 o-o Ne5 Ne5 Bd1 Bf7 Ke7 Nd5 [ECO C44 Scotch: G\"oring gambit] e4 e5 Nf3 Nc6 d4 ed c3 [ECO C44 Scotch: Relfsson gambit ] e4 e5 Nf3 Nc6 d4 ed Bb5 [ECO C44 Scotch: Cochrane variation] e4 e5 Nf3 Nc6 d4 Nd4 Ne5 Ne6 Bc4 c6 o-o Nf6 Nf7 [ECO C44 Scotch: Lolli variation] e4 e5 Nf3 Nc6 d4 Nd4 [ECO C44 Scotch opening] e4 e5 Nf3 Nc6 d4 [ECO C44 Ponziani counter-gambit, Cordel variation] e4 e5 Nf3 Nc6 c3 f5 d4 d6 d5 fe Ng5 Nb8 Ne4 Nf6 Bd3 Be7 [ECO C44 Ponziani counter-gambit, Schmidt attack] e4 e5 Nf3 Nc6 c3 f5 d4 d6 d5 [ECO C44 Ponziani counter-gambit] e4 e5 Nf3 Nc6 c3 f5 [ECO C44 Ponziani: Romanishin variation] e4 e5 Nf3 Nc6 c3 Be7 [ECO C44 Ponziani: R\'eti variation] e4 e5 Nf3 Nc6 c3 N8e7 [ECO C44 Ponziani: Fraser defence] e4 e5 Nf3 Nc6 c3 Nf6 d4 Ne4 d5 Bc5 [ECO C44 Ponziani: Jaenisch counter-attack] e4 e5 Nf3 Nc6 c3 Nf6 [ECO C44 Ponziani: Steinitz variation] e4 e5 Nf3 Nc6 c3 d5 Qa4 f6 [ECO C44 Ponziani: Leonhardt variation] e4 e5 Nf3 Nc6 c3 d5 Qa4 Nf6 [ECO C44 Ponziani: Caro variation] e4 e5 Nf3 Nc6 c3 d5 Qa4 Bd7 [ECO C44 Ponziani opening] e4 e5 Nf3 Nc6 c3 [ECO C44 Tayler opening] e4 e5 Nf3 Nc6 Be2 Nf6 d4 [ECO C44 Inverted Hanham] e4 e5 Nf3 Nc6 Be2 Nf6 d3 d5 N1d2 [ECO C44 Inverted Hungarian] e4 e5 Nf3 Nc6 Be2 [ECO C44 Dresden opening] e4 e5 Nf3 Nc6 c4 [ECO C44 Konstantinopolsky opening] e4 e5 Nf3 Nc6 g3 [ECO C44 Irish gambit] e4 e5 Nf3 Nc6 Ne5 Ne5 d4 [ECO C44 King's pawn game] e4 e5 Nf3 Nc6 [ECO C43 Petrov: modern attack, Trifunovi\'c variation] e4 e5 Nf3 Nf6 d4 Ne4 Bd3 d5 Ne5 Bd6 o-o o-o c4 Be5 [ECO C43 Petrov: modern attack, Symmetrical variation] e4 e5 Nf3 Nf6 d4 Ne4 [ECO C43 Petrov: Urusov gambit] e4 e5 Nf3 Nf6 d4 ed Bc4 [ECO C43 Petrov: modern attack, Bardeleben variation] e4 e5 Nf3 Nf6 d4 ed e5 Ne4 Qe2 Nc5 Nd4 Nc6 [ECO C43 Petrov: modern attack, Steinitz variation] e4 e5 Nf3 Nf6 d4 ed e5 Ne4 Qe2 [ECO C43 Petrov: modern attack, main line] e4 e5 Nf3 Nf6 d4 ed e5 Ne4 Qd4 [ECO C43 Petrov: modern attack] e4 e5 Nf3 Nf6 d4 [ECO C42 Petrov: Italian variation] e4 e5 Nf3 Nf6 Bc4 [ECO C42 Petrov three knights game] e4 e5 Nf3 Nf6 Nc3 [ECO C42 Petrov: Damiano variation] e4 e5 Nf3 Nf6 Ne5 Ne4 [ECO C42 Petrov: Paulsen attack] e4 e5 Nf3 Nf6 Ne5 d6 Nc4 [ECO C42 Petrov: Cochrane gambit] e4 e5 Nf3 Nf6 Ne5 d6 Nf7 [ECO C42 Petrov: classical attack, close variation] e4 e5 Nf3 Nf6 Ne5 d6 Nf3 Ne4 d4 Nf6 [ECO C42 Petrov: classical attack, Marshall trap] e4 e5 Nf3 Nf6 Ne5 d6 Nf3 Ne4 d4 d5 Bd3 Bd6 o-o o-o c4 Bg4 cd f5 Re1 Bh2 [ECO C42 Petrov: classical attack, Tarrasch variation] e4 e5 Nf3 Nf6 Ne5 d6 Nf3 Ne4 d4 d5 Bd3 Bd6 o-o o-o c4 Bg4 [ECO C42 Petrov: classical attack, Marshall variation] e4 e5 Nf3 Nf6 Ne5 d6 Nf3 Ne4 d4 d5 Bd3 Bd6 [ECO C42 Petrov: classical attack, Mason variation] e4 e5 Nf3 Nf6 Ne5 d6 Nf3 Ne4 d4 d5 Bd3 Be7 o-o o-o [ECO C42 Petrov: classical attack, Jaenisch variation] e4 e5 Nf3 Nf6 Ne5 d6 Nf3 Ne4 d4 d5 Bd3 Be7 o-o Nc6 c4 [ECO C42 Petrov: classical attack, Mar\'oczy variation] e4 e5 Nf3 Nf6 Ne5 d6 Nf3 Ne4 d4 d5 Bd3 Be7 o-o Nc6 Re1 Bg4 c3 f5 c4 Bh4 [ECO C42 Petrov: classical attack, Krause variation] e4 e5 Nf3 Nf6 Ne5 d6 Nf3 Ne4 d4 d5 Bd3 Be7 o-o Nc6 Re1 Bg4 c3 f5 c4 [ECO C42 Petrov: classical attack, Berger variation] e4 e5 Nf3 Nf6 Ne5 d6 Nf3 Ne4 d4 d5 Bd3 Be7 o-o Nc6 Re1 Bg4 c3 f5 N1d2 [ECO C42 Petrov: classical attack, Chigorin variation] e4 e5 Nf3 Nf6 Ne5 d6 Nf3 Ne4 d4 d5 Bd3 Be7 o-o Nc6 Re1 [ECO C42 Petrov: classical attack] e4 e5 Nf3 Nf6 Ne5 d6 Nf3 Ne4 d4 [ECO C42 Petrov: Cozio attack] e4 e5 Nf3 Nf6 Ne5 d6 Nf3 Ne4 Qe2 [ECO C42 Petrov: Nimzovich attack] e4 e5 Nf3 Nf6 Ne5 d6 Nf3 Ne4 Nc3 [ECO C42 Petrov: Kaufmann attack] e4 e5 Nf3 Nf6 Ne5 d6 Nf3 Ne4 c4 [ECO C42 Petrov: French attack] e4 e5 Nf3 Nf6 Ne5 d6 Nf3 Ne4 d3 [ECO C42 Petrov's defence] e4 e5 Nf3 Nf6 [ECO C41 Philidor: Hanham, Delmar variation] e4 e5 Nf3 d6 d4 Nd7 Bc4 c6 c3 [ECO C41 Philidor: Hanham, Schlechter variation] e4 e5 Nf3 d6 d4 Nd7 Bc4 c6 Nc3 [ECO C41 Philidor: Hanham, Berger variation] e4 e5 Nf3 d6 d4 Nd7 Bc4 c6 Ng5 Nh6 f4 Be7 o-o o-o c3 d5 [ECO C41 Philidor: Hanham, Kmoch variation] e4 e5 Nf3 d6 d4 Nd7 Bc4 c6 Ng5 [ECO C41 Philidor: Hanham, Steiner variation] e4 e5 Nf3 d6 d4 Nd7 Bc4 c6 o-o Be7 de [ECO C41 Philidor: Hanham, Krause variation] e4 e5 Nf3 d6 d4 Nd7 Bc4 c6 o-o [ECO C41 Philidor: Hanham variation] e4 e5 Nf3 d6 d4 Nd7 [ECO C41 Philidor: Nimzovich, Klein variation] e4 e5 Nf3 d6 d4 Nf6 Bc4 [ECO C41 Philidor: Nimzovich, Locock variation] e4 e5 Nf3 d6 d4 Nf6 Ng5 [ECO C41 Philidor: Nimzovich, Rellstab variation] e4 e5 Nf3 d6 d4 Nf6 de Ne4 Qd5 [ECO C41 Philidor: Nimzovich, Sokolsky variation] e4 e5 Nf3 d6 d4 Nf6 de Ne4 N1d2 [ECO C41 Philidor: Nimzovich variation] e4 e5 Nf3 d6 d4 Nf6 de [ECO C41 Philidor: Nimzovich, L\"arobok variation] e4 e5 Nf3 d6 d4 Nf6 Nc3 N8d7 Bc4 Be7 Ng5 o-o Bf7 [ECO C41 Philidor: Nimzovich, Sozin variation] e4 e5 Nf3 d6 d4 Nf6 Nc3 N8d7 Bc4 Be7 o-o o-o Qe2 c6 a4 ed [ECO C41 Philidor: Improved Hanham variation] e4 e5 Nf3 d6 d4 Nf6 Nc3 N8d7 [ECO C41 Philidor: Nimzovich variation] e4 e5 Nf3 d6 d4 Nf6 [ECO C41 Philidor: Larsen variation] e4 e5 Nf3 d6 d4 ed Nd4 g6 [ECO C41 Philidor: Berger variation] e4 e5 Nf3 d6 d4 ed Nd4 Nf6 Nc3 Be7 Be2 o-o o-o c5 Nf3 Nc6 Bg5 Be6 Re1 [ECO C41 Philidor: exchange variation] e4 e5 Nf3 d6 d4 ed Nd4 Nf6 [ECO C41 Philidor: Paulsen attack] e4 e5 Nf3 d6 d4 ed Nd4 d5 ed [ECO C41 Philidor: exchange variation] e4 e5 Nf3 d6 d4 ed Nd4 [ECO C41 Philidor: Boden variation] e4 e5 Nf3 d6 d4 ed Qd4 Bd7 [ECO C41 Philidor: exchange variation] e4 e5 Nf3 d6 d4 ed [ECO C41 Philidor: Philidor counter-gambit, Zukertort variation] e4 e5 Nf3 d6 d4 f5 Nc3 [ECO C41 Philidor: Philidor counter-gambit, Berger variation] e4 e5 Nf3 d6 d4 f5 de fe Ng5 d5 e6 Bc5 Nc3 [ECO C41 Philidor: Philidor counter-gambit, del Rio attack] e4 e5 Nf3 d6 d4 f5 de fe Ng5 d5 e6 [ECO C41 Philidor: Philidor counter-gambit] e4 e5 Nf3 d6 d4 f5 [ECO C41 Philidor's defence] e4 e5 Nf3 d6 d4 [ECO C41 Philidor: L\'opez counter-gambit, Jaenisch variation] e4 e5 Nf3 d6 Bc4 f5 d4 ed Ng5 Nh6 Nh7 [ECO C41 Philidor: L\'opez counter-gambit] e4 e5 Nf3 d6 Bc4 f5 [ECO C41 Philidor: Steinitz variation] e4 e5 Nf3 d6 Bc4 Be7 c3 [ECO C41 Philidor's defence] e4 e5 Nf3 d6 [ECO C40 Latvian: corkscrew counter-gambit] e4 e5 Nf3 f5 Bc4 fe Ne5 Nf6 [ECO C40 Latvian: Polerio variation] e4 e5 Nf3 f5 Bc4 fe Ne5 d5 [ECO C40 Latvian: Behting variation] e4 e5 Nf3 f5 Bc4 fe Ne5 Qg5 Nf7 Qg2 Rf1 d5 Nh8 Nf6 [ECO C40 Latvian gambit, 3.Bc4] e4 e5 Nf3 f5 Bc4 [ECO C40 Latvian: Fraser defence] e4 e5 Nf3 f5 Ne5 Nc6 [ECO C40 Latvian: Nimzovich variation] e4 e5 Nf3 f5 Ne5 Qf6 d4 d6 Nc4 fe Ne3 [ECO C40 Latvian counter-gambit] e4 e5 Nf3 f5 [ECO C40 QP counter-gambit: Maroczy gambit] e4 e5 Nf3 d5 ed Bd6 [ECO C40 QP counter-gambit ] e4 e5 Nf3 d5 [ECO C40 Damiano's defence] e4 e5 Nf3 f6 [ECO C40 Greco defence] e4 e5 Nf3 Qf6 [ECO C40 Gunderam defence] e4 e5 Nf3 Qe7 [ECO C40 King's knight opening] e4 e5 Nf3 [ECO C39 KGA: Kieseritsky, Rice gambit] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 Nf6 Bc4 d5 ed Bd6 o-o [ECO C39 KGA: Kieseritsky, Berlin defence, 6.Bc4] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 Nf6 Bc4 [ECO C39 KGA: Kieseritsky, Berlin defence, Rivi\`ere variation] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 Nf6 Ng4 d5 [ECO C39 KGA: Kieseritsky, Berlin defence] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 Nf6 [ECO C39 KGA: Kieseritsky, Kolisch defence] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 d6 [ECO C39 KGA: Kieseritsky, Neumann defence] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 Nc6 [ECO C39 KGA: Kieseritsky, Polerio defence] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 Be7 [ECO C39 KGA: Kieseritsky, Salvio defence, Cozio variation] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 Qe7 d4 f5 Bc4 [ECO C39 KGA: Kieseritsky, Salvio defence] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 Qe7 [ECO C39 KGA: Kieseritsky, Brentano defence, Caro variation] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 d5 d4 Nf6 Bf4 Ne4 Nd2 [ECO C39 KGA: Kieseritsky, Brentano defence] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 d5 d4 Nf6 Bf4 [ECO C39 KGA: Kieseritsky, Brentano defence, Kaplanek variation] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 d5 d4 Nf6 ed Qd5 Nc3 Bb4 Kf2 [ECO C39 KGA: Kieseritsky, Brentano defence] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 d5 [ECO C39 KGA: Kieseritsky, long whip defence, Jaenisch variation] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 h5 Bc4 Rh7 d4 Bh6 Nc3 [ECO C39 KGA: Kieseritsky, long whip defence] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 h5 [ECO C39 KGA: Kieseritsky, Paulsen defence] e4 e5 f4 ef Nf3 g5 h4 g4 Ne5 Bg7 [ECO C39 KGA: Allgaier, Schlechter defence] e4 e5 f4 ef Nf3 g5 h4 g4 Ng5 Nf6 [ECO C39 KGA: Allgaier, Urusov attack] e4 e5 f4 ef Nf3 g5 h4 g4 Ng5 h6 Nf7 Kf7 Bc4 d5 Bd5 Kg7 d4 [ECO C39 KGA: Allgaier, Walker attack] e4 e5 f4 ef Nf3 g5 h4 g4 Ng5 h6 Nf7 Kf7 Bc4 [ECO C39 KGA: Allgaier, Blackburne gambit] e4 e5 f4 ef Nf3 g5 h4 g4 Ng5 h6 Nf7 Kf7 Nc3 [ECO C39 KGA: Allgaier, Cook variation] e4 e5 f4 ef Nf3 g5 h4 g4 Ng5 h6 Nf7 Kf7 d4 d5 Bf4 de Bc4 Kg7 Be5 [ECO C39 KGA: Allgaier, Thorold variation] e4 e5 f4 ef Nf3 g5 h4 g4 Ng5 h6 Nf7 Kf7 d4 [ECO C39 KGA: Allgaier, Horny defence] e4 e5 f4 ef Nf3 g5 h4 g4 Ng5 h6 Nf7 Kf7 Qg4 Nf6 Qf4 Bd6 [ECO C39 KGA: Allgaier gambit] e4 e5 f4 ef Nf3 g5 h4 g4 Ng5 [ECO C39 King's knight's gambit] e4 e5 f4 ef Nf3 g5 h4 [ECO C38 KGA: Philidor gambit, Schultz variation] e4 e5 f4 ef Nf3 g5 Bc4 Bg7 h4 h6 d4 d6 Qd3 [ECO C38 KGA: Greco gambit] e4 e5 f4 ef Nf3 g5 Bc4 Bg7 h4 h6 d4 d6 Nc3 c6 hg hg Rh8 Bh8 Ne5 [ECO C38 KGA: Philidor gambit] e4 e5 f4 ef Nf3 g5 Bc4 Bg7 h4 [ECO C38 KGA: Hanstein gambit] e4 e5 f4 ef Nf3 g5 Bc4 Bg7 o-o [ECO C38 King's knight's gambit] e4 e5 f4 ef Nf3 g5 Bc4 Bg7 [ECO C37 KGA: Muzio gambit, Brentano defence] e4 e5 f4 ef Nf3 g5 Bc4 g4 o-o d5 [ECO C37 KGA: Muzio gambit, Kling and Horwitz counter-attack] e4 e5 f4 ef Nf3 g5 Bc4 g4 o-o Qe7 [ECO C37 KGA: Muzio gambit, Holloway defence] e4 e5 f4 ef Nf3 g5 Bc4 g4 o-o gf Qf3 Nc6 [ECO C37 KGA: Muzio gambit, From defence] e4 e5 f4 ef Nf3 g5 Bc4 g4 o-o gf Qf3 Qe7 [ECO C37 KGA: double Muzio gambit] e4 e5 f4 ef Nf3 g5 Bc4 g4 o-o gf Qf3 Qf6 e5 Qe5 Bf7 [ECO C37 KGA: Muzio gambit, Paulsen variation] e4 e5 f4 ef Nf3 g5 Bc4 g4 o-o gf Qf3 Qf6 e5 Qe5 d3 Bh6 Nc3 Ne7 Bd2 N8c6 a1e1 [ECO C37 KGA: Muzio gambit] e4 e5 f4 ef Nf3 g5 Bc4 g4 o-o [ECO C37 KGA: Herzfeld gambit] e4 e5 f4 ef Nf3 g5 Bc4 g4 Ne5 Qh4 Kf1 Nc6 [ECO C37 KGA: Cochrane gambit] e4 e5 f4 ef Nf3 g5 Bc4 g4 Ne5 Qh4 Kf1 f3 [ECO C37 KGA: Salvio gambit, Anderssen counter-attack] e4 e5 f4 ef Nf3 g5 Bc4 g4 Ne5 Qh4 Kf1 Nh6 d4 d6 [ECO C37 KGA: Silberschmidt gambit] e4 e5 f4 ef Nf3 g5 Bc4 g4 Ne5 Qh4 Kf1 Nh6 d4 f3 [ECO C37 KGA: Salvio gambit] e4 e5 f4 ef Nf3 g5 Bc4 g4 Ne5 [ECO C37 KGA: MacDonnell gambit] e4 e5 f4 ef Nf3 g5 Bc4 g4 Nc3 [ECO C37 KGA: Ghulam Kassim gambit] e4 e5 f4 ef Nf3 g5 Bc4 g4 d4 [ECO C37 KGA: Lolli gambit, Young variation] e4 e5 f4 ef Nf3 g5 Bc4 g4 Bf7 Kf7 o-o gf Qf3 Qf6 d4 Qd4 Be3 Qf6 Nc3 [ECO C37 KGA: Lolli gambit ] e4 e5 f4 ef Nf3 g5 Bc4 g4 Bf7 [ECO C37 KGA: Blachly gambit] e4 e5 f4 ef Nf3 g5 Bc4 Nc6 [ECO C37 KGA: King's knight's gambit] e4 e5 f4 ef Nf3 g5 Bc4 [ECO C37 KGA: S\o rensen gambit] e4 e5 f4 ef Nf3 g5 d4 g4 Ne5 [ECO C37 KGA: Rosentreter gambit] e4 e5 f4 ef Nf3 g5 d4 [ECO C37 KGA: Quaade gambit] e4 e5 f4 ef Nf3 g5 Nc3 [ECO C36 KGA: Abbazia defence, Botvinnik variation] e4 e5 f4 ef Nf3 d5 ed Nf6 Bb5 c6 dc bc Bc4 Nd5 [ECO C36 KGA: Abbazia defence, modern variation] e4 e5 f4 ef Nf3 d5 ed Nf6 [ECO C36 KGA: Abbazia defence ] e4 e5 f4 ef Nf3 d5 [ECO C35 KGA: Cunningham, Euwe defence] e4 e5 f4 ef Nf3 Be7 Bc4 Nf6 [ECO C35 KGA: Cunningham, three pawns gambit] e4 e5 f4 ef Nf3 Be7 Bc4 Bh4 g3 fg o-o gh Kh1 [ECO C35 KGA: Cunningham, Bertin gambit] e4 e5 f4 ef Nf3 Be7 Bc4 Bh4 g3 [ECO C35 KGA: Cunningham defence] e4 e5 f4 ef Nf3 Be7 [ECO C34 KGA: Schallop defence] e4 e5 f4 ef Nf3 Nf6 [ECO C34 KGA: Becker defence] e4 e5 f4 ef Nf3 h6 [ECO C34 KGA: Fischer defence] e4 e5 f4 ef Nf3 d6 [ECO C34 KGA: Gianutio counter-gambit] e4 e5 f4 ef Nf3 f5 [ECO C34 KGA: Bonsch-Osmolovsky variation] e4 e5 f4 ef Nf3 Ne7 [ECO C34 King's knight's gambit] e4 e5 f4 ef Nf3 [ECO C33 KGA: bishop's gambit, Jaenisch variation] e4 e5 f4 ef Bc4 Nf6 Nc3 c6 [ECO C33 KGA: bishop's gambit, Paulsen attack] e4 e5 f4 ef Bc4 Nf6 Nc3 Bb4 e5 [ECO C33 KGA: bishop's gambit, Bogolyubov variation] e4 e5 f4 ef Bc4 Nf6 Nc3 [ECO C33 KGA: bishop's gambit, Cozio defence] e4 e5 f4 ef Bc4 Nf6 [ECO C33 KGA: bishop's gambit, Morphy variation] e4 e5 f4 ef Bc4 d5 Bd5 Nf6 [ECO C33 KGA: bishop's gambit, Anderssen variation] e4 e5 f4 ef Bc4 d5 Bd5 c6 [ECO C33 KGA: bishop's gambit, Bor\'en-Svenonius variation] e4 e5 f4 ef Bc4 d5 Bd5 Qh4 Kf1 Bd6 [ECO C33 KGA: bishop's gambit, Gifford variation] e4 e5 f4 ef Bc4 d5 Bd5 Qh4 Kf1 g5 g3 [ECO C33 KGA: bishop's gambit, Bledow variation] e4 e5 f4 ef Bc4 d5 [ECO C33 KGA: L\'opez-Gianutio counter-gambit, Hein variation] e4 e5 f4 ef Bc4 f5 Qe2 Qh4 Kd1 fe Nc3 Kd8 [ECO C33 KGA: bishop's gambit, L\'opez-Gianutio counter-gambit] e4 e5 f4 ef Bc4 f5 [ECO C33 KGA: bishop's gambit, Ruy L\'opez defence] e4 e5 f4 ef Bc4 c6 [ECO C33 KGA: bishop's gambit, Maurian defence] e4 e5 f4 ef Bc4 Nc6 [ECO C33 KGA: bishop's gambit, Steinitz defence] e4 e5 f4 ef Bc4 Ne7 [ECO C33 KGA: bishop's gambit, Bryan counter-gambit] e4 e5 f4 ef Bc4 b5 [ECO C33 KGA: bishop's gambit, Bryan counter-gambit] e4 e5 f4 ef Bc4 Qh4 Kf1 b5 [ECO C33 KGA: bishop's gambit, Boden defence] e4 e5 f4 ef Bc4 Qh4 Kf1 Nc6 [ECO C33 KGA: bishop's gambit, classical defence, Cozio attack] e4 e5 f4 ef Bc4 Qh4 Kf1 g5 Qf3 [ECO C33 KGA: bishop's gambit, Fraser variation] e4 e5 f4 ef Bc4 Qh4 Kf1 g5 Nc3 Bg7 g3 fg Qf3 [ECO C33 KGA: bishop's gambit, McDonnell attack] e4 e5 f4 ef Bc4 Qh4 Kf1 g5 Nc3 Bg7 g3 [ECO C33 KGA: bishop's gambit, McDonnell attack] e4 e5 f4 ef Bc4 Qh4 Kf1 g5 Nc3 Bg7 d4 Ne7 g3 [ECO C33 KGA: bishop's gambit, classical defence] e4 e5 f4 ef Bc4 Qh4 Kf1 g5 Nc3 Bg7 d4 Ne7 [ECO C33 KGA: bishop's gambit, Grimm attack] e4 e5 f4 ef Bc4 Qh4 Kf1 g5 Nc3 Bg7 d4 d6 e5 [ECO C33 KGA: bishop's gambit, classical defence] e4 e5 f4 ef Bc4 Qh4 Kf1 g5 [ECO C33 KGA: bishop's gambit, Greco variation] e4 e5 f4 ef Bc4 Qh4 Kf1 Bc5 [ECO C33 KGA: bishop's gambit, Chigorin's attack] e4 e5 f4 ef Bc4 Qh4 Kf1 d5 Bd5 g5 g3 [ECO C33 KGA: bishop's gambit] e4 e5 f4 ef Bc4 [ECO C33 KGA: Lesser bishop's gambit] e4 e5 f4 ef Be2 [ECO C33 KGA: Breyer gambit] e4 e5 f4 ef Qf3 [ECO C33 KGA: Keres gambit] e4 e5 f4 ef Nc3 [ECO C33 KGA: Villemson gambit] e4 e5 f4 ef d4 [ECO C33 KGA: Carrera gambit] e4 e5 f4 ef Qe2 [ECO C33 KGA: Schurig gambit] e4 e5 f4 ef Bd3 [ECO C33 KGA: Pawn's gambit ] e4 e5 f4 ef h4 [ECO C33 KGA: Orsini gambit] e4 e5 f4 ef b3 [ECO C33 KGA: Tumbleweed gambit] e4 e5 f4 ef Kf2 [ECO C33 King's gambit accepted] e4 e5 f4 ef [ECO C32 KGD: Falkbeer, R\'eti variation] e4 e5 f4 d5 ed e4 d3 Nf6 Qe2 [ECO C32 KGD: Falkbeer, Keres variation] e4 e5 f4 d5 ed e4 d3 Nf6 Nd2 [ECO C32 KGD: Falkbeer, Charousek variation] e4 e5 f4 d5 ed e4 d3 Nf6 de Ne4 Qe2 Qd5 Nd2 f5 g4 [ECO C32 KGD: Falkbeer, Charousek gambit] e4 e5 f4 d5 ed e4 d3 Nf6 de Ne4 Qe2 [ECO C32 KGD: Falkbeer, Tarrasch variation] e4 e5 f4 d5 ed e4 d3 Nf6 de Ne4 Nf3 Bc5 Qe2 Bf5 g4 o-o [ECO C32 KGD: Falkbeer, main line, 7...Bf5] e4 e5 f4 d5 ed e4 d3 Nf6 de Ne4 Nf3 Bc5 Qe2 Bf5 [ECO C32 KGD: Falkbeer, Alapin variation] e4 e5 f4 d5 ed e4 d3 Nf6 de Ne4 Nf3 Bc5 Qe2 Bf2 Kd1 Qd5 N3d2 [ECO C32 KGD: Falkbeer, 5.de] e4 e5 f4 d5 ed e4 d3 Nf6 de [ECO C31 KGD: Falkbeer, Morphy gambit] e4 e5 f4 d5 ed e4 d3 Nf6 Nc3 Bb4 Bd2 e3 [ECO C31 KGD: Falkbeer, 4.d3] e4 e5 f4 d5 ed e4 d3 [ECO C31 KGD: Falkbeer, Nimzovich variation] e4 e5 f4 d5 ed e4 Bb5 [ECO C31 KGD: Falkbeer, Rubinstein variation] e4 e5 f4 d5 ed e4 Nc3 Nf6 Qe2 [ECO C31 KGD: Falkbeer, 3...e4] e4 e5 f4 d5 ed e4 [ECO C31 KGD: Nimzovich counter-gambit] e4 e5 f4 d5 ed c6 [ECO C31 KGD: Falkbeer counter-gambit] e4 e5 f4 d5 ed [ECO C31 KGD: Falkbeer, Milner-Barry variation] e4 e5 f4 d5 Nc3 [ECO C31 KGD: Falkbeer, Tartakower variation] e4 e5 f4 d5 Nf3 [ECO C31 KGD: Falkbeer counter-gambit] e4 e5 f4 d5 [ECO C30 KGD: 2...Nf6] e4 e5 f4 Nf6 [ECO C30 KGD: classical, Heath variation] e4 e5 f4 Bc5 Nf3 d6 b4 [ECO C30 KGD: classical, Soldatenkov variation] e4 e5 f4 Bc5 Nf3 d6 fe [ECO C30 KGD: classical, R\'eti variation] e4 e5 f4 Bc5 Nf3 d6 c3 f5 fe de d4 ed Bc4 [ECO C30 KGD: classical counter-gambit] e4 e5 f4 Bc5 Nf3 d6 c3 f5 [ECO C30 KGD: classical, Marshall attack] e4 e5 f4 Bc5 Nf3 d6 c3 Bg4 fe de Qa4 [ECO C30 KGD: classical, 4.c3] e4 e5 f4 Bc5 Nf3 d6 c3 [ECO C30 KGD: classical, Hanham variation] e4 e5 f4 Bc5 Nf3 d6 Nc3 Nd7 [ECO C30 KGD: classical, Svenonius variation] e4 e5 f4 Bc5 Nf3 d6 Nc3 Nf6 Bc4 Nc6 d3 Bg4 h3 Bf3 Qf3 ef [ECO C30 KGD: classical variation] e4 e5 f4 Bc5 [ECO C30 KGD: Norwalde variation, B\"ucker gambit] e4 e5 f4 Qf6 Nf3 Qf4 Nc3 Bb4 Bc4 [ECO C30 KGD: Norwalde variation] e4 e5 f4 Qf6 [ECO C30 KGD: Mafia defence] e4 e5 f4 c5 [ECO C30 KGD: Keene's defence] e4 e5 f4 Qh4 g3 Qe7 [ECO C30 King's gambit] e4 e5 f4 [ECO C29 Vienna gambit, Steinitz variation] e4 e5 Nc3 Nf6 f4 d5 d3 [ECO C29 Vienna gambit, Wurzburger trap] e4 e5 Nc3 Nf6 f4 d5 fe Ne4 d3 Qh4 g3 Ng3 Nf3 Qh5 Nd5 [ECO C29 Vienna gambit] e4 e5 Nc3 Nf6 f4 d5 fe Ne4 d3 [ECO C29 Vienna gambit: Heyde variation] e4 e5 Nc3 Nf6 f4 d5 fe Ne4 Qf3 f5 d4 [ECO C29 Vienna gambit: Bardeleben variation] e4 e5 Nc3 Nf6 f4 d5 fe Ne4 Qf3 f5 [ECO C29 Vienna gambit: Paulsen attack] e4 e5 Nc3 Nf6 f4 d5 fe Ne4 Qf3 [ECO C29 Vienna gambit: Breyer variation] e4 e5 Nc3 Nf6 f4 d5 fe Ne4 Nf3 Be7 [ECO C29 Vienna gambit: Kaufmann variation] e4 e5 Nc3 Nf6 f4 d5 fe Ne4 Nf3 Bg4 Qe2 [ECO C29 Vienna gambit] e4 e5 Nc3 Nf6 f4 d5 [ECO C?? Vienna gambit] e4 e5 Nc3 Nf6 f4 [ECO C28 Vienna game] e4 e5 Nc3 Nf6 Bc4 Nc6 [ECO C27 Boden-Kieseritsky gambit: Lichtenhein defence] e4 e5 Nc3 Nf6 Bc4 Ne4 Nf3 d5 [ECO C27 Boden-Kieseritsky gambit] e4 e5 Nc3 Nf6 Bc4 Ne4 Nf3 [ECO C27 Vienna: Alekhine variation] e4 e5 Nc3 Nf6 Bc4 Ne4 Qh5 Nd6 Bb3 Be7 Nf3 Nc6 Ne5 [ECO C27 Vienna game] e4 e5 Nc3 Nf6 Bc4 Ne4 Qh5 Nd6 Bb3 Be7 [ECO C27 Vienna: Adams' gambit] e4 e5 Nc3 Nf6 Bc4 Ne4 Qh5 Nd6 Bb3 Nc6 d4 [ECO C27 Vienna: `Frankenstein-Dracula' variation] e4 e5 Nc3 Nf6 Bc4 Ne4 Qh5 Nd6 Bb3 Nc6 Nb5 g6 Qf3 f5 Qd5 Qe7 Nc7 Kd8 Na8 b6 [ECO C27 Vienna game] e4 e5 Nc3 Nf6 Bc4 Ne4 [ECO C26 Vienna game] e4 e5 Nc3 Nf6 Bc4 [ECO C26 Vienna: Paulsen-Mieses variation] e4 e5 Nc3 Nf6 g3 [ECO C26 Vienna: Mengarini variation] e4 e5 Nc3 Nf6 a3 [ECO C26 Vienna: Falkbeer variation] e4 e5 Nc3 Nf6 [ECO C25 Vienna: Pierce gambit, Rushmere attack] e4 e5 Nc3 Nc6 f4 ef Nf3 g5 d4 g4 Bc4 gf o-o d5 ed Bg4 dc [ECO C25 Vienna: Pierce gambit] e4 e5 Nc3 Nc6 f4 ef Nf3 g5 d4 [ECO C25 Vienna: Hamppe-Muzio, Dubois variation] e4 e5 Nc3 Nc6 f4 ef Nf3 g5 Bc4 g4 o-o gf Qf3 Ne5 Qf4 Qf6 [ECO C25 Vienna: Hamppe-Muzio gambit] e4 e5 Nc3 Nc6 f4 ef Nf3 g5 Bc4 g4 o-o [ECO C25 Vienna: Hamppe-Allgaier gambit, Alapin variation] e4 e5 Nc3 Nc6 f4 ef Nf3 g5 h4 g4 Ng5 d6 [ECO C25 Vienna: Hamppe-Allgaier gambit] e4 e5 Nc3 Nc6 f4 ef Nf3 g5 h4 g4 Ng5 [ECO C25 Vienna gambit] e4 e5 Nc3 Nc6 f4 ef Nf3 [ECO C25 Vienna: Steinitz gambit, Fraser-Minckwitz variation] e4 e5 Nc3 Nc6 f4 ef d4 Qh4 Ke2 b6 [ECO C25 Vienna: Steinitz gambit, Zukertort defence] e4 e5 Nc3 Nc6 f4 ef d4 Qh4 Ke2 d5 [ECO C25 Vienna: Steinitz gambit] e4 e5 Nc3 Nc6 f4 ef d4 [ECO C25 Vienna gambit] e4 e5 Nc3 Nc6 f4 [ECO C25 Vienna: Fyfe gambit] e4 e5 Nc3 Nc6 d4 [ECO C25 Vienna: Paulsen variation] e4 e5 Nc3 Nc6 g3 [ECO C25 Vienna game, Max Lange defence] e4 e5 Nc3 Nc6 [ECO C25 Vienna: Zhuravlev countergambit] e4 e5 Nc3 Bb4 Qg4 Nf6 [ECO C25 Vienna game] e4 e5 Nc3 [ECO C24 Bishop's opening: Urusov gambit, Panov variation] e4 e5 Bc4 Nf6 d4 ed Nf3 d5 ed Bb4 c3 Qe7 [ECO C24 Bishop's opening: Urusov gambit] e4 e5 Bc4 Nf6 d4 ed Nf3 [ECO C24 Bishop's opening: Ponziani gambit] e4 e5 Bc4 Nf6 d4 [ECO C24 Bishop's opening: Greco gambit] e4 e5 Bc4 Nf6 f4 [ECO C24 Bishop's opening: Berlin defence] e4 e5 Bc4 Nf6 [ECO C23 Bishop's opening: Four pawns' gambit] e4 e5 Bc4 Bc5 b4 Bb4 f4 ef Nf3 Be7 d4 Bh4 g3 fg o-o gh Kh1 [ECO C23 Bishop's opening: MacDonnell double gambit] e4 e5 Bc4 Bc5 b4 Bb4 f4 [ECO C23 Bishop's opening: Wing gambit] e4 e5 Bc4 Bc5 b4 [ECO C23 Bishop's opening: Lewis gambit] e4 e5 Bc4 Bc5 d4 [ECO C23 Bishop's opening: del Rio variation] e4 e5 Bc4 Bc5 c3 Qg5 [ECO C23 Bishop's opening: Lewis counter-gambit] e4 e5 Bc4 Bc5 c3 d5 [ECO C23 Bishop's opening: Pratt variation] e4 e5 Bc4 Bc5 c3 Nf6 d4 ed e5 d5 ef dc4 Qh5 o-o [ECO C23 Bishop's opening: Philidor variation] e4 e5 Bc4 Bc5 c3 [ECO C23 Bishop's opening: Lopez gambit] e4 e5 Bc4 Bc5 Qe2 Nc6 c3 Nf6 f4 [ECO C23 Bishop's opening: Classical variation] e4 e5 Bc4 Bc5 [ECO C23 Bishop's opening: Calabrese counter-gambit, Jaenisch variation] e4 e5 Bc4 f5 d3 [ECO C23 Bishop's opening: Calabrese counter-gambit] e4 e5 Bc4 f5 [ECO C23 Bishop's opening: Lisitsyn variation] e4 e5 Bc4 c6 d4 d5 ed cd Bb5 Bd7 Bd7 Nd7 de Ne5 Ne2 [ECO C23 Bishop's opening: Philidor counter-attack] e4 e5 Bc4 c6 [ECO C23 Bishop's opening] e4 e5 Bc4 [ECO C22 Centre game: Hall variation] e4 e5 d4 ed Qd4 Nc6 Qc4 [ECO C22 Centre game: Kupreichik variation] e4 e5 d4 ed Qd4 Nc6 Qe3 Nf6 Nc3 Bb4 Bd2 o-o o-o-o Re8 Bc4 d6 Nh3 [ECO C22 Centre game: Berger variation] e4 e5 d4 ed Qd4 Nc6 Qe3 Nf6 [ECO C22 Centre game: l'Hermet variation] e4 e5 d4 ed Qd4 Nc6 Qe3 f5 [ECO C22 Centre game: Charousek variation] e4 e5 d4 ed Qd4 Nc6 Qe3 Bb4 c3 Be7 [ECO C22 Centre game: Paulsen attack] e4 e5 d4 ed Qd4 Nc6 Qe3 [ECO C22 Centre game] e4 e5 d4 ed Qd4 Nc6 [ECO C?? Centre game] e4 e5 d4 ed Qd4 [ECO C21 Danish gambit: S\o rensen defence] e4 e5 d4 ed c3 d5 [ECO C21 Danish gambit: Schlechter defence] e4 e5 d4 ed c3 dc Bc4 cb Bb2 d5 [ECO C21 Danish gambit: Collijn defence] e4 e5 d4 ed c3 dc Bc4 cb Bb2 Qe7 [ECO C21 Danish gambit] e4 e5 d4 ed c3 [ECO C21 Halasz gambit] e4 e5 d4 ed f4 [ECO C21 Centre game, Kieseritsky variation] e4 e5 d4 ed Nf3 c5 Bc4 b5 [ECO C21 Centre game] e4 e5 d4 ed [ECO C20 Alapin's opening] e4 e5 Ne2 [ECO C20 KP: Lopez opening] e4 e5 c3 [ECO C20 KP: Napoleon's opening] e4 e5 Qf3 [ECO C20 KP: Patzer opening] e4 e5 Qh5 [ECO C20 KP: King's head opening] e4 e5 f3 [ECO C20 KP: Mengarini's opening] e4 e5 a3 [ECO C20 KP: Indian opening] e4 e5 d3 [ECO C20 King's pawn game] e4 e5 [ECO B99 Sicilian: Najdorf, 7...Be7 main line] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Bg5 e6 f4 Be7 Qf3 Qc7 o-o-o N8d7 [ECO B98 Sicilian: Najdorf variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Bg5 e6 f4 Be7 Qf3 Qc7 [ECO B98 Sicilian: Najdorf, G\"oteborg variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Bg5 e6 f4 Be7 Qf3 h6 Bh4 g5 [ECO B98 Sicilian: Najdorf, Browne variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Bg5 e6 f4 Be7 Qf3 h6 Bh4 Qc7 [ECO B98 Sicilian: Najdorf, 7...Be7] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Bg5 e6 f4 Be7 [ECO B97 Sicilian: Najdorf, Poisoned pawn variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Bg5 e6 f4 Qb6 Qd2 Qb2 Rb1 Qa3 [ECO B97 Sicilian: Najdorf, 7...Qb6] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Bg5 e6 f4 Qb6 [ECO B96 Sicilian: Najdorf, Polugayevsky, Simagin variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Bg5 e6 f4 b5 e5 de fe Qc7 Qe2 [ECO B96 Sicilian: Najdorf, Polugayevsky variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Bg5 e6 f4 b5 [ECO B96 Sicilian: Najdorf, 7.f4] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Bg5 e6 f4 [ECO B95 Sicilian: Najdorf, 6...e6] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Bg5 e6 [ECO B94 Sicilian: Najdorf, Ivkov variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Bg5 N8d7 Bc4 Qa5 Qd2 e6 o-o-o b5 Bb3 Bb7 h1e1 Nc5 e5 [ECO B94 Sicilian: Najdorf, 6.Bg5] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Bg5 [ECO B93 Sicilian: Najdorf, 6.f4] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 f4 [ECO B92 Sicilian: Najdorf, Opo\v censky variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Be2 [ECO B91 Sicilian: Najdorf, Zagreb variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 g3 [ECO B90 Sicilian: Najdorf, Byrne attack] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Be3 [ECO B90 Sicilian: Najdorf, Lipnitzky attack] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 Bc4 [ECO B90 Sicilian: Najdorf, Adams attack] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 h3 [ECO B90 Sicilian: Najdorf] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 a6 [ECO B89 Sicilian: Velimirovi\'c attack] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Bc4 Nc6 Be3 Be7 Qe2 [ECO B89 Sicilian: Sozin, 7.Be3] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Bc4 Nc6 Be3 [ECO B88 Sicilian: Sozin, Fischer variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Bc4 Nc6 Bb3 Be7 Be3 o-o f4 [ECO B88 Sicilian: Sozin, Leonhardt variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Bc4 Nc6 [ECO B87 Sicilian: Sozin with ...a6 and ...b5] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Bc4 a6 Bb3 b5 [ECO B86 Sicilian: Sozin attack] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Bc4 [ECO B85 Sicilian: Scheveningen, classical main line] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Be2 a6 o-o Qc7 f4 Nc6 Be3 Be7 Qe1 o-o [ECO B85 Sicilian: Scheveningen, classical] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Be2 a6 o-o Qc7 f4 Nc6 Be3 [ECO B85 Sicilian: Scheveningen, classical, Mar\'oczy system] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Be2 a6 o-o Qc7 f4 Nc6 Kh1 Be7 a4 [ECO B85 Sicilian: Scheveningen, classical variation with ...Qc7 and ...Nc6] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Be2 a6 o-o Qc7 f4 Nc6 [ECO B84 Sicilian: Scheveningen , classical variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Be2 a6 o-o Qc7 [ECO B84 Sicilian: Scheveningen, classical, Nd7 system] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Be2 a6 o-o N8d7 [ECO B84 Sicilian: Scheveningen , classical variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Be2 a6 [ECO B83 Sicilian: modern Scheveningen, main line with Nb3] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Be2 Nc6 o-o Be7 Be3 o-o f4 Bd7 Nb3 [ECO B83 Sicilian: modern Scheveningen, main line] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Be2 Nc6 o-o Be7 Be3 o-o f4 [ECO B83 Sicilian: modern Scheveningen] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Be2 Nc6 [ECO B83 Sicilian: Scheveningen, 6.Be2] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Be2 [ECO B82 Sicilian: Scheveningen, Tal variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 f4 Nc6 Be3 Be7 Qf3 [ECO B82 Sicilian: Scheveningen, 6.f4] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 f4 [ECO B81 Sicilian: Scheveningen, Keres attack] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 g4 [ECO B80 Sicilian: Scheveningen, fianchetto variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 g3 [ECO B80 Sicilian: Scheveningen, Vitoli\'n\'s variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Bb5 [ECO B80 Sicilian: Scheveningen, English variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 Be3 a6 Qd2 [ECO B80 Sicilian: Scheveningen variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e6 [ECO B79 Sicilian: dragon, Yugoslav attack, 12.h4] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 f3 o-o Qd2 Nc6 Bc4 Bd7 o-o-o Qa5 Bb3 f8c8 h4 [ECO B78 Sicilian: dragon, Yugoslav attack, 10.O-O-O] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 f3 o-o Qd2 Nc6 Bc4 Bd7 o-o-o [ECO B77 Sicilian: dragon, Yugoslav attack, 9...Bd7] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 f3 o-o Qd2 Nc6 Bc4 Bd7 [ECO B77 Sicilian: dragon, Yugoslav attack, Byrne variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 f3 o-o Qd2 Nc6 Bc4 a5 [ECO B77 Sicilian: dragon, Yugoslav attack, 9.Bc4] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 f3 o-o Qd2 Nc6 Bc4 [ECO B76 Sicilian: dragon, Yugoslav attack, Rauser variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 f3 o-o Qd2 Nc6 o-o-o [ECO B76 Sicilian: dragon, Yugoslav attack, 7...O-O] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 f3 o-o [ECO B75 Sicilian: dragon, Yugoslav attack] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 f3 [ECO B74 Sicilian: dragon, classical, Alekhine variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 Be2 Nc6 o-o o-o Nb3 a5 [ECO B74 Sicilian: dragon, classical, R\'eti-Tartakower variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 Be2 Nc6 o-o o-o Nb3 Be6 f4 Qc8 [ECO B74 Sicilian: dragon, classical, Bernard defence] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 Be2 Nc6 o-o o-o Nb3 Be6 f4 Na5 f5 Bc4 Bd3 Bd3 cd d5 [ECO B74 Sicilian: dragon, classical, Spielmann variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 Be2 Nc6 o-o o-o Nb3 Be6 f4 Na5 f5 Bc4 Bd3 [ECO B74 Sicilian: dragon, classical, Stockholm attack] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 Be2 Nc6 o-o o-o Nb3 Be6 f4 Na5 f5 Bc4 Na5 Be2 Qe2 Qa5 g4 [ECO B74 Sicilian: dragon, classical, 9.Nb3] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 Be2 Nc6 o-o o-o Nb3 [ECO B73 Sicilian: dragon, classical, Richter variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 Be2 Nc6 o-o o-o Qd2 [ECO B73 Sicilian: dragon, classical, Zollner gambit] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 Be2 Nc6 o-o o-o f4 Qb6 e5 [ECO B73 Sicilian: dragon, classical, 8.O-O] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 Be2 Nc6 o-o [ECO B72 Sicilian: dragon, classical, Nottingham variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 Be2 Nc6 Nb3 [ECO B72 Sicilian: dragon, classical, Grigoriev variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 Be2 Nc6 Qd2 o-o o-o-o [ECO B72 Sicilian: dragon, classical, Amsterdam variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 Be2 Nc6 Qd2 [ECO B72 Sicilian: dragon, classical attack] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 Bg7 Be2 [ECO B72 Sicilian: dragon, 6.Be3] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 Be3 [ECO B71 Sicilian: dragon, Levenfish; Flohr variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 f4 N8d7 [ECO B71 Sicilian: dragon, Levenfish variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 f4 [ECO B70 Sicilian: dragon variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 g6 [ECO B69 Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 defence, 11.Bxf6] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 e6 Qd2 a6 o-o-o Bd7 f4 Be7 Nf3 b5 Bf6 [ECO B68 Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 defence, 9...Be7] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 e6 Qd2 a6 o-o-o Bd7 f4 Be7 [ECO B67 Sicilian: Richter-Rauzer, Rauzer attack, 7...a6 defence, 8...Bd7] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 e6 Qd2 a6 o-o-o Bd7 [ECO B66 Sicilian: Richter-Rauzer, Rauzer attack, 7...a6] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 e6 Qd2 a6 [ECO B65 Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 e6 Qd2 Be7 o-o-o o-o f4 Nd4 Qd4 [ECO B65 Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9...Nxd4] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 e6 Qd2 Be7 o-o-o o-o f4 Nd4 [ECO B64 Sicilian: Richter-Rauzer, Rauzer attack, Geller variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 e6 Qd2 Be7 o-o-o o-o f4 e5 [ECO B64 Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7 defence, 9.f4] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 e6 Qd2 Be7 o-o-o o-o f4 [ECO B63 Sicilian: Richter-Rauzer, Rauzer attack, 7...Be7] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 e6 Qd2 Be7 [ECO B63 Sicilian: Richter-Rauzer, Rauzer attack] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 e6 Qd2 [ECO B62 Sicilian: Richter-Rauzer, Keres variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 e6 Qd3 [ECO B62 Sicilian: Richter-Rauzer, Richter attack] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 e6 Nc6 [ECO B62 Sicilian: Richter-Rauzer, Margate variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 e6 Bb5 [ECO B62 Sicilian: Richter-Rauzer, Pod\v ebrady variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 e6 Nb3 [ECO B62 Sicilian: Richter-Rauzer, 6...e6] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 e6 [ECO B61 Sicilian: Richter-Rauzer, Larsen variation, 7.Qd2] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 Bd7 Qd2 [ECO B60 Sicilian: Richter-Rauzer, Larsen variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 Bd7 [ECO B60 Sicilian: Richter-Rauzer, Bondarevsky variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 g6 [ECO B60 Sicilian: Richter-Rauzer] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bg5 [ECO B59 Sicilian: Boleslavsky variation, 7.Nb3] e4 c5 Nf3 Nc6 d4 cd Nd4 Nf6 Nc3 d6 Be2 e5 Nb3 [ECO B58 Sicilian: Boleslavsky, Louma variation] e4 c5 Nf3 Nc6 d4 cd Nd4 Nf6 Nc3 d6 Be2 e5 Nc6 [ECO B58 Sicilian: Boleslavsky variation] e4 c5 Nf3 Nc6 d4 cd Nd4 Nf6 Nc3 d6 Be2 e5 [ECO B58 Sicilian: classical] e4 c5 Nf3 Nc6 d4 cd Nd4 Nf6 Nc3 d6 Be2 [ECO B57 Sicilian: Sozin, Benk\"o variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bc4 Qb6 [ECO B57 Sicilian: Magnus Smith trap] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bc4 g6 Nc6 bc e5 [ECO B57 Sicilian: Sozin, not Scheveningen] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 Bc4 [ECO B56 Sicilian] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 Nc6 [ECO B56 Sicilian: Venice attack] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 e5 Bb5 [ECO B56 Sicilian] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 Nc3 [ECO B55 Sicilian: Prins variation, Venice attack] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 f3 e5 Bb5 [ECO B54 Sicilian: Prins variation] e4 c5 Nf3 d6 d4 cd Nd4 Nf6 f3 [ECO B54 Sicilian] e4 c5 Nf3 d6 d4 cd Nd4 [ECO B53 Sicilian: Chekhover, Zaitsev variation] e4 c5 Nf3 d6 d4 cd Qd4 Nc6 Bb5 Qd7 [ECO B53 Sicilian, Chekhover variation] e4 c5 Nf3 d6 d4 cd Qd4 [ECO B?? Sicilian: Tartakower variation] e4 c5 Nf3 d6 d4 cd c3 [ECO B?? Sicilian] e4 c5 Nf3 d6 d4 cd [ECO B?? Sicilian: Cortlever variation] e4 c5 Nf3 d6 d4 Nf6 [ECO B52 Sicilian: Canal-Sokolsky attack, Sokolsky variation] e4 c5 Nf3 d6 Bb5 Bd7 Bd7 Qd7 c4 [ECO B52 Sicilian: Canal-Sokolsky attack, Bronstein gambit] e4 c5 Nf3 d6 Bb5 Bd7 Bd7 Qd7 o-o Nc6 c3 Nf6 d4 [ECO B52 Sicilian: Canal-Sokolsky attack, 3...Bd7] e4 c5 Nf3 d6 Bb5 Bd7 [ECO B51 Sicilian: Canal-Sokolsky attack] e4 c5 Nf3 d6 Bb5 [ECO B50 Sicilian: wing gambit deferred] e4 c5 Nf3 d6 b4 [ECO B50 Sicilian] e4 c5 Nf3 d6 [ECO B49 Sicilian: Taimanov variation] e4 c5 Nf3 e6 d4 cd Nd4 Nc6 Nc3 Qc7 Be3 a6 Be2 [ECO B48 Sicilian: Taimanov variation] e4 c5 Nf3 e6 d4 cd Nd4 Nc6 Nc3 Qc7 Be3 [ECO B47 Sicilian: Taimanov variation] e4 c5 Nf3 e6 d4 cd Nd4 Nc6 Nc3 Qc7 [ECO B46 Sicilian: Taimanov variation] e4 c5 Nf3 e6 d4 cd Nd4 Nc6 Nc3 a6 [ECO B45 Sicilian: Taimanov, American attack] e4 c5 Nf3 e6 d4 cd Nd4 Nc6 Nc3 Nf6 N4b5 Bb4 Nd6 [ECO B45 Sicilian: Taimanov variation] e4 c5 Nf3 e6 d4 cd Nd4 Nc6 Nc3 [ECO B44 Sicilian, Sz\'en variation, Dely-Kasparov gambit] e4 c5 Nf3 e6 d4 cd Nd4 Nc6 Nb5 d6 c4 Nf6 N1c3 a6 Na3 d5 [ECO B44 Sicilian, Sz\'en, hedgehog variation] e4 c5 Nf3 e6 d4 cd Nd4 Nc6 Nb5 d6 c4 Nf6 N1c3 a6 Na3 Be7 Be2 o-o o-o b6 [ECO B44 Sicilian, Sz\'en variation] e4 c5 Nf3 e6 d4 cd Nd4 Nc6 Nb5 [ECO B44 Sicilian defence] e4 c5 Nf3 e6 d4 cd Nd4 Nc6 [ECO B43 Sicilian: Kan, 5.Nc3] e4 c5 Nf3 e6 d4 cd Nd4 a6 Nc3 [ECO B42 Sicilian: Kan, Swiss cheese variation] e4 c5 Nf3 e6 d4 cd Nd4 a6 Bd3 g6 [ECO B42 Sicilian: Kan, Polugaievsky variation] e4 c5 Nf3 e6 d4 cd Nd4 a6 Bd3 Bc5 [ECO B42 Sicilian: Kan, Gipslis variation] e4 c5 Nf3 e6 d4 cd Nd4 a6 Bd3 Nf6 o-o d6 c4 g6 [ECO B42 Sicilian: Kan, 5.Bd3] e4 c5 Nf3 e6 d4 cd Nd4 a6 Bd3 [ECO B41 Sicilian: Kan, Mar\'oczy bind - Bronstein variation] e4 c5 Nf3 e6 d4 cd Nd4 a6 c4 Nf6 Nc3 Bb4 Bd3 Nc6 Bc2 [ECO B41 Sicilian: Kan, Mar\'oczy bind ] e4 c5 Nf3 e6 d4 cd Nd4 a6 c4 [ECO B41 Sicilian: Kan variation] e4 c5 Nf3 e6 d4 cd Nd4 a6 [ECO B40 Sicilian: Pin, Koch variation] e4 c5 Nf3 e6 d4 cd Nd4 Nf6 Nc3 Bb4 e5 [ECO B40 Sicilian: Pin, Jaffe variation] e4 c5 Nf3 e6 d4 cd Nd4 Nf6 Nc3 Bb4 Bd3 e5 [ECO B40 Sicilian: Pin variation ] e4 c5 Nf3 e6 d4 cd Nd4 Nf6 Nc3 Bb4 [ECO B40 Sicilian: Anderssen variation] e4 c5 Nf3 e6 d4 cd Nd4 Nf6 [ECO B40 Sicilian defence] e4 c5 Nf3 e6 d4 cd [ECO B40 Sicilian: Marshall variation] e4 c5 Nf3 e6 d4 d5 [ECO B40 Sicilian defence] e4 c5 Nf3 e6 [ECO B39 Sicilian: accelerated fianchetto, Breyer variation] e4 c5 Nf3 Nc6 d4 cd Nd4 g6 c4 Bg7 Be3 Nf6 Nc3 Ng4 [ECO B38 Sicilian: accelerated fianchetto, Mar\'oczy bind, 6.Be3] e4 c5 Nf3 Nc6 d4 cd Nd4 g6 c4 Bg7 Be3 [ECO B37 Sicilian: accelerated fianchetto, Simagin variation] e4 c5 Nf3 Nc6 d4 cd Nd4 g6 c4 Bg7 Nc2 d6 Be2 Nh6 [ECO B37 Sicilian: accelerated fianchetto, Mar\'oczy bind, 5...Bg7] e4 c5 Nf3 Nc6 d4 cd Nd4 g6 c4 Bg7 [ECO B36 Sicilian: accelerated fianchetto, Gurgenidze variation] e4 c5 Nf3 Nc6 d4 cd Nd4 g6 c4 Nf6 Nc3 Nd4 Qd4 d6 [ECO B36 Sicilian: accelerated fianchetto, Mar\'oczy bind] e4 c5 Nf3 Nc6 d4 cd Nd4 g6 c4 [ECO B35 Sicilian: accelerated fianchetto, modern variation with Bc4] e4 c5 Nf3 Nc6 d4 cd Nd4 g6 Nc3 Bg7 Be3 Nf6 Bc4 [ECO B34 Sicilian: accelerated fianchetto, modern variation] e4 c5 Nf3 Nc6 d4 cd Nd4 g6 Nc3 [ECO B34 Sicilian: accelerated fianchetto, exchange variation] e4 c5 Nf3 Nc6 d4 cd Nd4 g6 Nc6 [ECO B33 Sicilian: Sveshnikov variation] e4 c5 Nf3 Nc6 d4 cd Nd4 Nf6 Nc3 e5 N4b5 d6 Bg5 a6 Na3 b5 Bf6 gf Nd5 f5 [ECO B33 Sicilian: Pelikan, Chelyabinsk variation] e4 c5 Nf3 Nc6 d4 cd Nd4 Nf6 Nc3 e5 N4b5 d6 Bg5 a6 Na3 b5 [ECO B33 Sicilian: Pelikan, Bird variation] e4 c5 Nf3 Nc6 d4 cd Nd4 Nf6 Nc3 e5 N4b5 d6 Bg5 a6 Na3 Be6 [ECO B33 Sicilian: Pelikan variation] e4 c5 Nf3 Nc6 d4 cd Nd4 Nf6 Nc3 e5 [ECO B33 Sicilian defence] e4 c5 Nf3 Nc6 d4 cd Nd4 Nf6 [ECO B32 Sicilian: Labourdonnais-L\"owenthal variation] e4 c5 Nf3 Nc6 d4 cd Nd4 e5 Nb5 d6 [ECO B32 Sicilian: Labourdonnais-L\"owenthal variation] e4 c5 Nf3 Nc6 d4 cd Nd4 e5 [ECO B32 Sicilian: Nimzovich variation] e4 c5 Nf3 Nc6 d4 cd Nd4 d5 [ECO B32 Sicilian: Flohr variation] e4 c5 Nf3 Nc6 d4 cd Nd4 Qc7 [ECO B32 Sicilian defence] e4 c5 Nf3 Nc6 d4 [ECO B31 Sicilian: Nimzovich-Rossolimo attack, Gurgenidze variation] e4 c5 Nf3 Nc6 Bb5 g6 o-o Bg7 Re1 e5 b4 [ECO B31 Sicilian: Nimzovich-Rossolimo attack ] e4 c5 Nf3 Nc6 Bb5 g6 [ECO B30 Sicilian: Nimzovich-Rossolimo attack ] e4 c5 Nf3 Nc6 Bb5 [ECO B30 Sicilian defence] e4 c5 Nf3 Nc6 [ECO B29 Sicilian: Nimzovich-Rubinstein; Rubinstein counter-gambit] e4 c5 Nf3 Nf6 e5 Nd5 Nc3 e6 Nd5 ed d4 Nc6 [ECO B29 Sicilian: Nimzovich-Rubinstein variation] e4 c5 Nf3 Nf6 [ECO B28 Sicilian: O'Kelly variation] e4 c5 Nf3 a6 [ECO B27 Sicilian: Acton extension] e4 c5 Nf3 g6 c4 Bh6 [ECO B27 Sicilian: Hungarian variation] e4 c5 Nf3 g6 [ECO B27 Sicilian: Katalimov variation] e4 c5 Nf3 b6 [ECO B27 Sicilian: Quinteros variation] e4 c5 Nf3 Qc7 [ECO B27 Sicilian: Stiletto variation] e4 c5 Nf3 Qa5 [ECO B27 Sicilian defence] e4 c5 Nf3 [ECO B26 Sicilian: closed, 6.Be3] e4 c5 Nc3 Nc6 g3 g6 Bg2 Bg7 d3 d6 Be3 [ECO B25 Sicilian: closed, 6.f4 e5 ] e4 c5 Nc3 Nc6 g3 g6 Bg2 Bg7 d3 d6 f4 e5 [ECO B25 Sicilian: closed, 6.f4] e4 c5 Nc3 Nc6 g3 g6 Bg2 Bg7 d3 d6 f4 [ECO B25 Sicilian: closed, 6.Ne2 e5 ] e4 c5 Nc3 Nc6 g3 g6 Bg2 Bg7 d3 d6 N1e2 e5 [ECO B25 Sicilian: closed] e4 c5 Nc3 Nc6 g3 g6 Bg2 Bg7 d3 d6 [ECO B24 Sicilian: closed, Smyslov variation] e4 c5 Nc3 Nc6 g3 g6 Bg2 Bg7 d3 e6 Be3 Nd4 N3e2 [ECO B24 Sicilian: closed] e4 c5 Nc3 Nc6 g3 [ECO B23 Sicilian: Grand Prix attack, Schofman variation] e4 c5 Nc3 Nc6 f4 g6 Nf3 Bg7 Bc4 e6 f5 [ECO B23 Sicilian: Grand Prix attack] e4 c5 Nc3 Nc6 f4 [ECO B23 Sicilian: chameleon variation] e4 c5 Nc3 Nc6 N1e2 [ECO B23 Sicilian: closed, 2...Nc6] e4 c5 Nc3 Nc6 [ECO B23 Sicilian: closed, Korchnoi variation] e4 c5 Nc3 e6 g3 d5 [ECO B23 Sicilian: closed] e4 c5 Nc3 [ECO B22 Sicilian: 2.c3, Heidenfeld variation] e4 c5 c3 Nf6 e5 Nd5 Nf3 Nc6 Na3 [ECO B22 Sicilian: Alapin's variation ] e4 c5 c3 [ECO B21 Sicilian: Smith-Morra gambit, Chicago defence] e4 c5 d4 cd c3 dc Nc3 Nc6 Nf3 d6 Bc4 e6 o-o a6 Qe2 b5 Bb3 Ra7 [ECO B21 Sicilian: Smith-Morra gambit] e4 c5 d4 cd c3 [ECO B21 Sicilian: Andreaschek gambit] e4 c5 d4 cd Nf3 e5 c3 [ECO B21 Sicilian: Smith-Morra gambit] e4 c5 d4 [ECO B21 Sicilian: Grand Prix attack] e4 c5 f4 [ECO B20 Sicilian: Keres variation ] e4 c5 Ne2 [ECO B20 Sicilian: wing gambit, Carlsbad variation] e4 c5 b4 cb a3 ba [ECO B20 Sicilian: wing gambit, Marienbad variation] e4 c5 b4 cb a3 d5 ed Qd5 Bb2 [ECO B20 Sicilian: wing gambit, Marshall variation] e4 c5 b4 cb a3 [ECO B20 Sicilian: wing gambit, Santasiere variation] e4 c5 b4 cb c4 [ECO B20 Sicilian: wing gambit] e4 c5 b4 [ECO B20 Sicilian: Steinitz variation] e4 c5 g3 [ECO B20 Sicilian: Gloria variation] e4 c5 c4 d6 Nc3 Nc6 g3 h5 [ECO B20 Sicilian defence] e4 c5 [ECO C19 French: Winawer, advance, positional main line] e4 e6 d4 d5 Nc3 Bb4 e5 c5 a3 Bc3 bc Ne7 Nf3 [ECO C19 French: Winawer, advance, Smyslov variation] e4 e6 d4 d5 Nc3 Bb4 e5 c5 a3 Bc3 bc Ne7 a4 [ECO C18 French: Winawer, advance, poisoned pawn, Konstantinopolsky variation] e4 e6 d4 d5 Nc3 Bb4 e5 c5 a3 Bc3 bc Ne7 Qg4 Qc7 Qg7 Rg8 Qh7 cd Ne2 [ECO C18 French: Winawer, advance, poisoned pawn, Euwe-Gligori\'c variation] e4 e6 d4 d5 Nc3 Bb4 e5 c5 a3 Bc3 bc Ne7 Qg4 Qc7 Qg7 Rg8 Qh7 cd Kd1 [ECO C18 French: Winawer, advance, poisoned pawn variation] e4 e6 d4 d5 Nc3 Bb4 e5 c5 a3 Bc3 bc Ne7 Qg4 [ECO C18 French: Winawer, advance, 6...Ne7] e4 e6 d4 d5 Nc3 Bb4 e5 c5 a3 Bc3 bc Ne7 [ECO C18 French: Winawer, classical variation] e4 e6 d4 d5 Nc3 Bb4 e5 c5 a3 Bc3 bc Qc7 [ECO C18 French: Winawer, advance variation] e4 e6 d4 d5 Nc3 Bb4 e5 c5 a3 Bc3 bc [ECO C17 French: Winawer, advance, Rauzer variation] e4 e6 d4 d5 Nc3 Bb4 e5 c5 a3 cd ab dc Nf3 [ECO C17 French: Winawer, advance, 5.a3] e4 e6 d4 d5 Nc3 Bb4 e5 c5 a3 [ECO C17 French: Winawer, advance, Russian variation] e4 e6 d4 d5 Nc3 Bb4 e5 c5 Qg4 [ECO C17 French: Winawer, advance, Bogolyubov variation] e4 e6 d4 d5 Nc3 Bb4 e5 c5 Bd2 [ECO C17 French: Winawer, advance variation] e4 e6 d4 d5 Nc3 Bb4 e5 c5 [ECO C16 French: Winawer, Petrosian variation] e4 e6 d4 d5 Nc3 Bb4 e5 Qd7 [ECO C16 French: Winawer, advance variation] e4 e6 d4 d5 Nc3 Bb4 e5 [ECO C15 French: Winawer, Alekhine gambit, Kan variation] e4 e6 d4 d5 Nc3 Bb4 Ne2 de a3 Bc3 Nc3 Nc6 [ECO C15 French: Winawer, Alekhine gambit] e4 e6 d4 d5 Nc3 Bb4 Ne2 de a3 Bc3 [ECO C15 French: Winawer, Alekhine gambit, Alatortsev variation] e4 e6 d4 d5 Nc3 Bb4 Ne2 de a3 Be7 Ne4 Nf6 N2g3 o-o Be2 Nc6 [ECO C15 French: Winawer, Alekhine gambit] e4 e6 d4 d5 Nc3 Bb4 Ne2 [ECO C15 French: Winawer, fingerslip variation] e4 e6 d4 d5 Nc3 Bb4 Bd2 [ECO C15 French: Winawer, Kondratiyev variation] e4 e6 d4 d5 Nc3 Bb4 Bd3 c5 ed Qd5 Bd2 [ECO C15 French: Winawer variation] e4 e6 d4 d5 Nc3 Bb4 [ECO C14 French: classical, St\a hlberg variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 e5 N6d7 Be7 Qe7 f4 o-o Nf3 c5 Qd2 Nc6 o-o-o c4 [ECO C14 French: classical, Steinitz variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 e5 N6d7 Be7 Qe7 f4 [ECO C14 French: classical, Pollock variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 e5 N6d7 Be7 Qe7 Qg4 [ECO C14 French: classical, Alapin variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 e5 N6d7 Be7 Qe7 Nb5 [ECO C14 French: classical, Rubinstein variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 e5 N6d7 Be7 Qe7 Qd2 [ECO C14 French: classical, Tarrasch variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 e5 N6d7 Be7 Qe7 Bd3 [ECO C14 French: classical variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 e5 N6d7 Be7 Qe7 [ECO C13 French: Albin-Alekhine-Ch\^atard attack, Spielmann variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 e5 N6d7 h4 o-o [ECO C13 French: Albin-Alekhine-Ch\^atard attack, Teichmann variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 e5 N6d7 h4 f6 [ECO C13 French: Albin-Alekhine-Ch\^atard attack, Breyer variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 e5 N6d7 h4 c5 [ECO C13 French: Albin-Alekhine-Ch\^atard attack, Mar\'oczy variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 e5 N6d7 h4 a6 [ECO C13 French: Albin-Alekhine-Ch\^atard attack] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 e5 N6d7 h4 [ECO C13 French: classical, Tartakower variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 e5 Ne4 [ECO C13 French: classical, Frankfurt variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 e5 Ng8 Be3 b6 [ECO C13 French: classical, Vistaneckis variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 e5 Ng8 [ECO C13 French: classical, Anderssen-Richter variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 Bf6 Bf6 e5 Be7 Qg4 [ECO C13 French: classical, Anderssen variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 Bf6 [ECO C13 French: classical] e4 e6 d4 d5 Nc3 Nf6 Bg5 Be7 [ECO C12 French: MacCutcheon, Lasker variation, 8...g6] e4 e6 d4 d5 Nc3 Nf6 Bg5 Bb4 e5 h6 Bd2 Bc3 bc Ne4 Qg4 g6 [ECO C12 French: MacCutcheon, Duras variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Bb4 e5 h6 Bd2 Bc3 bc Ne4 Qg4 Kf8 Bc1 [ECO C12 French: MacCutcheon, Lasker variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Bb4 e5 h6 Bd2 Bc3 [ECO C12 French: MacCutcheon, Tartakower variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Bb4 e5 h6 Bd2 N6d7 [ECO C12 French: MacCutcheon, Dr. Olland variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Bb4 e5 h6 Bc1 [ECO C12 French: MacCutcheon, Janowski variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Bb4 e5 h6 Be3 [ECO C12 French: MacCutcheon, Bernstein variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Bb4 e5 h6 Bh4 [ECO C12 French: MacCutcheon, Grigoriev variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Bb4 e5 h6 ef hg fg Rg8 h4 gh Qg4 [ECO C12 French: MacCutcheon, Chigorin variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Bb4 e5 h6 ef [ECO C12 French: MacCutcheon, advance variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Bb4 e5 [ECO C12 French: MacCutcheon, Bogolyubov variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Bb4 ed Qd5 Bf6 gf Qd2 Qa5 [ECO C12 French: MacCutcheon variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 Bb4 [ECO C11 French: Burn variation] e4 e6 d4 d5 Nc3 Nf6 Bg5 de [ECO C11 French: Steinitz, Gledhill attack] e4 e6 d4 d5 Nc3 Nf6 e5 N6d7 Qg4 [ECO C11 French: Steinitz, Boleslavsky variation] e4 e6 d4 d5 Nc3 Nf6 e5 N6d7 f4 c5 Nf3 Nc6 Be3 [ECO C11 French: Steinitz variation] e4 e6 d4 d5 Nc3 Nf6 e5 N6d7 f4 c5 Nf3 [ECO C11 French: Steinitz, Brodsky-Jones variation] e4 e6 d4 d5 Nc3 Nf6 e5 N6d7 f4 c5 dc Nc6 a3 Bc5 Qg4 o-o Nf3 f6 [ECO C11 French: Steinitz variation] e4 e6 d4 d5 Nc3 Nf6 e5 N6d7 f4 c5 dc Nc6 [ECO C11 French: Steinitz, Bradford attack] e4 e6 d4 d5 Nc3 Nf6 e5 N6d7 f4 c5 dc Bc5 Qg4 [ECO C11 French: Steinitz variation] e4 e6 d4 d5 Nc3 Nf6 e5 [ECO C11 French: Henneberger variation] e4 e6 d4 d5 Nc3 Nf6 Be3 [ECO C11 French: Swiss variation] e4 e6 d4 d5 Nc3 Nf6 Bd3 [ECO C11 French defence] e4 e6 d4 d5 Nc3 Nf6 [ECO C10 French: Frere variation] e4 e6 d4 d5 Nc3 de Ne4 Qd5 [ECO C10 French: Rubinstein, Capablanca line] e4 e6 d4 d5 Nc3 de Ne4 Nd7 Nf3 N8f6 Nf6 Nf6 Ne5 [ECO C10 French: Rubinstein variation] e4 e6 d4 d5 Nc3 de Ne4 Nd7 [ECO C10 French: Fort Knox variation] e4 e6 d4 d5 Nc3 de Ne4 Bd7 Nf3 Bc6 [ECO C10 French: Rubinstein variation] e4 e6 d4 d5 Nc3 de [ECO C10 French: Marshall variation] e4 e6 d4 d5 Nc3 c5 [ECO C10 French: Paulsen variation] e4 e6 d4 d5 Nc3 [ECO C09 French: Tarrasch, open variation, main line] e4 e6 d4 d5 Nd2 c5 ed ed N1f3 Nc6 [ECO C08 French: Tarrasch, open, 4.ed ed] e4 e6 d4 d5 Nd2 c5 ed ed [ECO C07 French: Tarrasch, Eliskases variation] e4 e6 d4 d5 Nd2 c5 ed Qd5 N1f3 cd Bc4 Qd8 [ECO C07 French: Tarrasch, open variation] e4 e6 d4 d5 Nd2 c5 [ECO C06 French: Tarrasch, Leningrad variation] e4 e6 d4 d5 Nd2 Nf6 e5 N6d7 Bd3 c5 c3 Nc6 Ne2 cd cd Nb6 [ECO C06 French: Tarrasch, closed variation, main line] e4 e6 d4 d5 Nd2 Nf6 e5 N6d7 Bd3 c5 c3 Nc6 Ne2 cd cd [ECO C05 French: Tarrasch, closed variation] e4 e6 d4 d5 Nd2 Nf6 e5 N6d7 Bd3 c5 c3 Nc6 [ECO C05 French: Tarrasch, Botvinnik variation] e4 e6 d4 d5 Nd2 Nf6 e5 N6d7 Bd3 c5 c3 b6 [ECO C05 French: Tarrasch, closed variation] e4 e6 d4 d5 Nd2 Nf6 [ECO C04 French: Tarrasch, Guimard main line] e4 e6 d4 d5 Nd2 Nc6 N1f3 Nf6 [ECO C03 French: Tarrasch, Guimard variation] e4 e6 d4 d5 Nd2 Nc6 [ECO C03 French: Tarrasch, Haberditz variation] e4 e6 d4 d5 Nd2 f5 [ECO C03 French: Tarrasch] e4 e6 d4 d5 Nd2 [ECO C02 French: advance, Euwe variation] e4 e6 d4 d5 e5 c5 c3 Nc6 Nf3 Bd7 [ECO C02 French: advance, Milner-Barry gambit] e4 e6 d4 d5 e5 c5 c3 Nc6 Nf3 Qb6 Bd3 [ECO C02 French: advance, Paulsen attack] e4 e6 d4 d5 e5 c5 c3 Nc6 Nf3 [ECO C02 French: advance variation] e4 e6 d4 d5 e5 c5 c3 Nc6 [ECO C02 French: advance, Wade variation] e4 e6 d4 d5 e5 c5 c3 Qb6 Nf3 Bd7 [ECO C02 French: advance variation] e4 e6 d4 d5 e5 c5 c3 [ECO C02 French: advance, Nimzovich system] e4 e6 d4 d5 e5 c5 Nf3 [ECO C02 French: advance, Nimzovich variation] e4 e6 d4 d5 e5 c5 Qg4 [ECO C02 French: advance, Steinitz variation] e4 e6 d4 d5 e5 c5 dc [ECO C02 French: advance variation] e4 e6 d4 d5 e5 [ECO C01 French: exchange, Bogolyubov variation] e4 e6 d4 d5 ed ed Nc3 Nf6 Bg5 Nc6 [ECO C01 French: exchange, Svenonius variation] e4 e6 d4 d5 ed ed Nc3 Nf6 Bg5 [ECO C01 French: exchange variation] e4 e6 d4 d5 ed [ECO C00 French: Alapin variation] e4 e6 d4 d5 Be3 [ECO C00 French: Schlechter variation] e4 e6 d4 d5 Bd3 [ECO C00 French defence] e4 e6 d4 d5 [ECO C00 St. George defence] e4 e6 d4 a6 [ECO C00 Lengfellner system] e4 e6 d4 d6 [ECO C00 French defence] e4 e6 d4 [ECO C00 French: Reversed Philidor formation] e4 e6 d3 d5 Nd2 Nf6 N1f3 Nc6 Be2 [ECO C00 French: King's Indian attack] e4 e6 d3 [ECO C00 French: Chigorin variation] e4 e6 Qe2 [ECO C00 French: Two knights variation] e4 e6 Nc3 d5 Nf3 [ECO C00 French: Pelikan variation] e4 e6 Nc3 d5 f4 [ECO C00 French defence] e4 e6 Nc3 [ECO C00 French: Wing gambit] e4 e6 Nf3 d5 e5 c5 b4 [ECO C00 French defence] e4 e6 Nf3 [ECO C00 French: Labourdonnais variation] e4 e6 f4 [ECO C00 French: Steinitz attack] e4 e6 e5 [ECO C00 French: R\'eti variation] e4 e6 b3 [ECO C00 French defence, Steiner variation] e4 e6 c4 [ECO C00 French defence] e4 e6 [ECO B19 Caro-Kann: classical, Spassky variation] e4 c6 d4 d5 Nc3 de Ne4 Bf5 Ng3 Bg6 h4 h6 Nf3 Nd7 h5 [ECO B19 Caro-Kann: classical, 7...Nd7] e4 c6 d4 d5 Nc3 de Ne4 Bf5 Ng3 Bg6 h4 h6 Nf3 Nd7 [ECO B18 Caro-Kann: classical, 6.h4] e4 c6 d4 d5 Nc3 de Ne4 Bf5 Ng3 Bg6 h4 [ECO B18 Caro-Kann: classical, Mar\'oczy attack] e4 c6 d4 d5 Nc3 de Ne4 Bf5 Ng3 Bg6 f4 [ECO B18 Caro-Kann: classical, Flohr variation] e4 c6 d4 d5 Nc3 de Ne4 Bf5 Ng3 Bg6 Nh3 [ECO B18 Caro-Kann: classical variation] e4 c6 d4 d5 Nc3 de Ne4 Bf5 [ECO B17 Caro-Kann: Steinitz variation] e4 c6 d4 d5 Nc3 de Ne4 Nd7 [ECO B16 Caro-Kann: Bronstein-Larsen variation] e4 c6 d4 d5 Nc3 de Ne4 Nf6 Nf6 gf [ECO B15 Caro-Kann: Forg\'acs variation] e4 c6 d4 d5 Nc3 de Ne4 Nf6 Nf6 ef Bc4 [ECO B15 Caro-Kann: Tartakower variation] e4 c6 d4 d5 Nc3 de Ne4 Nf6 Nf6 ef [ECO B15 Caro-Kann: Alekhine gambit] e4 c6 d4 d5 Nc3 de Ne4 Nf6 Bd3 [ECO B15 Caro-Kann defence] e4 c6 d4 d5 Nc3 de Ne4 [ECO B15 Caro-Kann: Rasa-Studier gambit] e4 c6 d4 d5 Nc3 de f3 [ECO B15 Caro-Kann: Gurgenidze system] e4 c6 d4 d5 Nc3 g6 [ECO B15 Caro-Kann: Gurgenidze counter-attack] e4 c6 d4 d5 Nc3 b5 [ECO B15 Caro-Kann defence] e4 c6 d4 d5 Nc3 [ECO B14 Caro-Kann: Panov-Botvinnik attack, 5...g6] e4 c6 d4 d5 ed cd c4 Nf6 Nc3 g6 [ECO B14 Caro-Kann: Panov-Botvinnik attack, 5...e6] e4 c6 d4 d5 ed cd c4 Nf6 Nc3 e6 [ECO B13 Caro-Kann: Panov-Botvinnik, Reifir variation] e4 c6 d4 d5 ed cd c4 Nf6 Nc3 Nc6 Bg5 Qb6 [ECO B13 Caro-Kann: Panov-Botvinnik, Czerniak variation] e4 c6 d4 d5 ed cd c4 Nf6 Nc3 Nc6 Bg5 Qa5 [ECO B13 Caro-Kann: Panov-Botvinnik, normal variation] e4 c6 d4 d5 ed cd c4 Nf6 Nc3 Nc6 Bg5 e6 [ECO B13 Caro-Kann: Panov-Botvinnik, Herzog defence] e4 c6 d4 d5 ed cd c4 Nf6 Nc3 Nc6 Bg5 dc d5 Na5 [ECO B13 Caro-Kann: Panov-Botvinnik attack] e4 c6 d4 d5 ed cd c4 Nf6 Nc3 [ECO B13 Caro-Kann: Panov-Botvinnik, Gunderam attack] e4 c6 d4 d5 ed cd c4 Nf6 c5 [ECO B13 Caro-Kann: Panov-Botvinnik attack] e4 c6 d4 d5 ed cd c4 [ECO B13 Caro-Kann: exchange, Rubinstein variation] e4 c6 d4 d5 ed cd Bd3 Nc6 c3 Nf6 Bf4 [ECO B13 Caro-Kann: exchange variation] e4 c6 d4 d5 ed [ECO B12 Caro-Kann: advance, Short variation] e4 c6 d4 d5 e5 Bf5 c3 e6 Be2 [ECO B12 Caro-Kann: advance variation] e4 c6 d4 d5 e5 [ECO B12 Caro-Kann: Edinburgh variation] e4 c6 d4 d5 Nd2 Qb6 [ECO B12 Caro-Kann: 3.Nd2] e4 c6 d4 d5 Nd2 [ECO B12 Caro-Kann: Tartakower variation] e4 c6 d4 d5 f3 [ECO B12 Caro-Kann defence] e4 c6 d4 d5 [ECO B12 Caro-Masi defence] e4 c6 d4 Nf6 [ECO B12 de Bruycker defence] e4 c6 d4 Na6 Nc3 Nc7 [ECO B12 Caro-Kann defence] e4 c6 d4 [ECO B11 Caro-Kann: two knights, 3...Bg4] e4 c6 Nc3 d5 Nf3 Bg4 [ECO B10 Caro-Kann: two knights variation] e4 c6 Nc3 d5 Nf3 [ECO B10 Caro-Kann: Goldman variation] e4 c6 Nc3 d5 Qf3 [ECO B10 Caro-Kann defence] e4 c6 Nc3 [ECO B10 Caro-Kann: closed variation] e4 c6 d3 [ECO B10 Caro-Kann: anti-anti-Caro-Kann defence] e4 c6 c4 d5 [ECO B10 Caro-Kann: anti-Caro-Kann defence] e4 c6 c4 [ECO B10 Caro-Kann: Hillbilly attack] e4 c6 Bc4 [ECO B10 Caro-Kann defence] e4 c6 [ECO B09 Pirc: Austrian attack, Ljubojevi\'c variation] e4 d6 d4 Nf6 Nc3 g6 f4 Bg7 Bc4 [ECO B09 Pirc: Austrian attack, dragon formation] e4 d6 d4 Nf6 Nc3 g6 f4 Bg7 Nf3 c5 [ECO B09 Pirc: Austrian attack, 6.Bd3] e4 d6 d4 Nf6 Nc3 g6 f4 Bg7 Nf3 o-o Bd3 [ECO B09 Pirc: Austrian attack, 6.Be3] e4 d6 d4 Nf6 Nc3 g6 f4 Bg7 Nf3 o-o Be3 [ECO B09 Pirc: Austrian attack, 6.e5] e4 d6 d4 Nf6 Nc3 g6 f4 Bg7 Nf3 o-o e5 [ECO B09 Pirc: Austrian attack] e4 d6 d4 Nf6 Nc3 g6 f4 Bg7 Nf3 o-o [ECO B09 Pirc: Austrian attack] e4 d6 d4 Nf6 Nc3 g6 f4 [ECO B08 Pirc: classical system, 5.Be2] e4 d6 d4 Nf6 Nc3 g6 Nf3 Bg7 Be2 [ECO B08 Pirc: classical, h3 system] e4 d6 d4 Nf6 Nc3 g6 Nf3 Bg7 h3 [ECO B08 Pirc: classical system] e4 d6 d4 Nf6 Nc3 g6 Nf3 Bg7 [ECO B?? Pirc: classical system] e4 d6 d4 Nf6 Nc3 g6 Nf3 [ECO B07 Pirc: bayonet attack] e4 d6 d4 Nf6 Nc3 g6 Be2 Bg7 h4 [ECO B07 Pirc: Chinese variation] e4 d6 d4 Nf6 Nc3 g6 Be2 Bg7 g4 [ECO B07 Pirc defence] e4 d6 d4 Nf6 Nc3 g6 Be2 [ECO B07 Pirc: Byrne variation] e4 d6 d4 Nf6 Nc3 g6 Bg5 [ECO B07 Pirc: Holmov system] e4 d6 d4 Nf6 Nc3 g6 Bc4 [ECO B07 Pirc: Sveshnikov system] e4 d6 d4 Nf6 Nc3 g6 g3 [ECO B07 Pirc: 150 attack] e4 d6 d4 Nf6 Nc3 g6 Be3 c6 Qd2 [ECO B07 Pirc defence] e4 d6 d4 Nf6 Nc3 g6 [ECO B07 Pirc: Ufimtsev-Pytel variation] e4 d6 d4 Nf6 Nc3 c6 [ECO B07 Pirc defence] e4 d6 d4 Nf6 [ECO A82 Balogh defence] e4 d6 d4 f5 [ECO C00 Lengfellner system] e4 d6 d4 e6 [ECO B06 Robatsch defence: Pseudo-Austrian attack] e4 g6 d4 Bg7 Nc3 d6 f4 [ECO B06 Robatsch defence: two knights, Suttles variation] e4 g6 d4 Bg7 Nc3 d6 Nf3 c6 [ECO B06 Robatsch defence: two knights variation] e4 g6 d4 Bg7 Nc3 d6 Nf3 [ECO B06 Robatsch defence] e4 g6 d4 Bg7 Nc3 d6 [ECO B06 Robatsch defence: Gurgenidze variation] e4 g6 d4 Bg7 Nc3 c6 f4 d5 e5 h5 [ECO B06 Robatsch defence] e4 g6 d4 Bg7 Nc3 [ECO B06 Robatsch defence: three pawns attack] e4 g6 d4 Bg7 f4 [ECO B07 Robatsch defence: Geller's system] e4 g6 d4 Bg7 Nf3 d6 c3 [ECO A41 Robatsch defence: Rossolimo variation] e4 g6 d4 Bg7 Nf3 d6 c4 Bg4 [ECO B06 Robatsch defence] e4 g6 d4 Bg7 [ECO B06 Norwegian defence] e4 g6 d4 Nf6 e5 Nh5 g4 Ng7 [ECO B06 Robatsch defence] e4 g6 [ECO B05 Alekhine's defence: modern, Vitolins attack] e4 Nf6 e5 Nd5 d4 d6 Nf3 Bg4 c4 Nb6 d5 [ECO B05 Alekhine's defence: modern, Alekhine variation] e4 Nf6 e5 Nd5 d4 d6 Nf3 Bg4 c4 [ECO B05 Alekhine's defence: modern, Panov variation] e4 Nf6 e5 Nd5 d4 d6 Nf3 Bg4 h3 [ECO B05 Alekhine's defence: modern, Flohr variation] e4 Nf6 e5 Nd5 d4 d6 Nf3 Bg4 Be2 c6 [ECO B05 Alekhine's defence: modern variation, 4...Bg4] e4 Nf6 e5 Nd5 d4 d6 Nf3 Bg4 [ECO B04 Alekhine's defence: modern, Keres variation] e4 Nf6 e5 Nd5 d4 d6 Nf3 g6 Bc4 Nb6 Bb3 Bg7 a4 [ECO B04 Alekhine's defence: modern, fianchetto variation] e4 Nf6 e5 Nd5 d4 d6 Nf3 g6 [ECO B04 Alekhine's defence: modern, Schmid variation] e4 Nf6 e5 Nd5 d4 d6 Nf3 Nb6 [ECO B04 Alekhine's defence: modern, Larsen variation] e4 Nf6 e5 Nd5 d4 d6 Nf3 de [ECO B04 Alekhine's defence: modern variation] e4 Nf6 e5 Nd5 d4 d6 Nf3 [ECO B03 Alekhine's defence: four pawns attack, Trifunovi\'c variation] e4 Nf6 e5 Nd5 d4 d6 c4 Nb6 f4 Bf5 [ECO B03 Alekhine's defence: four pawns attack, fianchetto variation] e4 Nf6 e5 Nd5 d4 d6 c4 Nb6 f4 g6 [ECO B03 Alekhine's defence: four pawns attack, Planinc variation] e4 Nf6 e5 Nd5 d4 d6 c4 Nb6 f4 g5 [ECO B03 Alekhine's defence: four pawns attack, Tartakower variation] e4 Nf6 e5 Nd5 d4 d6 c4 Nb6 f4 de fe Nc6 Be3 Bf5 Nc3 e6 Nf3 Qd7 Be2 o-o-o o-o Be7 [ECO B03 Alekhine's defence: four pawns attack, 7.Be3] e4 Nf6 e5 Nd5 d4 d6 c4 Nb6 f4 de fe Nc6 Be3 [ECO B03 Alekhine's defence: four pawns attack, Ilyin-Genevsky variation] e4 Nf6 e5 Nd5 d4 d6 c4 Nb6 f4 de fe Nc6 Nf3 Bg4 e6 fe c5 [ECO B03 Alekhine's defence: four pawns attack, 6...Nc6] e4 Nf6 e5 Nd5 d4 d6 c4 Nb6 f4 de fe Nc6 [ECO B03 Alekhine's defence: four pawns attack, Korchnoi variation] e4 Nf6 e5 Nd5 d4 d6 c4 Nb6 f4 de fe Bf5 Nc3 e6 Nf3 Be7 Be2 o-o o-o f6 [ECO B03 Alekhine's defence: four pawns attack] e4 Nf6 e5 Nd5 d4 d6 c4 Nb6 f4 [ECO B03 Alekhine's defence: exchange, Karpov variation] e4 Nf6 e5 Nd5 d4 d6 c4 Nb6 ed cd Nf3 g6 Be2 Bg7 o-o o-o h3 Nc6 Nc3 Bf5 Bf4 [ECO B03 Alekhine's defence: exchange variation] e4 Nf6 e5 Nd5 d4 d6 c4 Nb6 ed [ECO B03 Alekhine's defence] e4 Nf6 e5 Nd5 d4 d6 c4 [ECO B03 Alekhine's defence: Balogh variation] e4 Nf6 e5 Nd5 d4 d6 Bc4 [ECO B03 Alekhine's defence] e4 Nf6 e5 Nd5 d4 d6 [ECO B03 Alekhine's defence: O'Sullivan gambit] e4 Nf6 e5 Nd5 d4 b5 [ECO B03 Alekhine's defence] e4 Nf6 e5 Nd5 d4 [ECO B02 Alekhine's defence: two pawns' attack, Mikenas variation] e4 Nf6 e5 Nd5 c4 Nb6 c5 Nd5 Bc4 e6 Nc3 d6 [ECO B02 Alekhine's defence: two pawns' attack] e4 Nf6 e5 Nd5 c4 Nb6 c5 [ECO B02 Alekhine's defence: Steiner variation] e4 Nf6 e5 Nd5 c4 Nb6 b3 [ECO B02 Alekhine's defence] e4 Nf6 e5 Nd5 c4 [ECO B02 Alekhine's defence: Welling variation] e4 Nf6 e5 Nd5 b3 [ECO B02 Alekhine's defence: S\"amisch attack] e4 Nf6 e5 Nd5 Nc3 [ECO B02 Alekhine's defence: Kmoch variation] e4 Nf6 e5 Nd5 Bc4 Nb6 Bb3 c5 d3 [ECO B02 Alekhine's defence] e4 Nf6 e5 Nd5 [ECO B02 Alekhine's defence: Brooklyn defence] e4 Nf6 e5 Ng8 [ECO B02 Alekhine's defence: Mokele Mbembe variation] e4 Nf6 e5 Ne4 [ECO B02 Alekhine's defence: Krejcik variation] e4 Nf6 Bc4 [ECO B02 Alekhine's defence: Mar\'oczy variation] e4 Nf6 d3 [ECO B02 Alekhine's defence: Spielmann variation] e4 Nf6 Nc3 d5 e5 N6d7 e6 [ECO B02 Alekhine's defence: Scandinavian variation] e4 Nf6 Nc3 d5 [ECO B02 Alekhine's defence] e4 Nf6 [ECO B01 Scandinavian: Richter variation] e4 d5 ed Nf6 d4 g6 [ECO B01 Scandinavian: Kiel variation] e4 d5 ed Nf6 d4 Nd5 c4 Nb4 [ECO B01 Scandinavian: Marshall variation] e4 d5 ed Nf6 d4 Nd5 [ECO B01 Scandinavian defence] e4 d5 ed Nf6 d4 [ECO B01 Scandinavian gambit] e4 d5 ed Nf6 c4 c6 [ECO B01 Scandinavian: Icelandic gambit] e4 d5 ed Nf6 c4 e6 [ECO B01 Scandinavian defence] e4 d5 ed Nf6 [ECO B01 Scandinavian: Pytel-Wade variation] e4 d5 ed Qd5 Nc3 Qd6 [ECO B01 Scandinavian, Mieses-Kotr\v c gambit] e4 d5 ed Qd5 Nc3 Qa5 b4 [ECO B01 Scandinavian: Anderssen counter-attack, Collijn variation] e4 d5 ed Qd5 Nc3 Qa5 d4 e5 Nf3 Bg4 [ECO B01 Scandinavian: Anderssen counter-attack, Goteborg system] e4 d5 ed Qd5 Nc3 Qa5 d4 e5 Nf3 [ECO B01 Scandinavian: Anderssen counter-attack orthodox attack] e4 d5 ed Qd5 Nc3 Qa5 d4 e5 de Bb4 Bd2 Nc6 Nf3 [ECO B01 Scandinavian: Anderssen counter-attack] e4 d5 ed Qd5 Nc3 Qa5 d4 e5 [ECO B01 Scandinavian defence, Gr\"unfeld variation] e4 d5 ed Qd5 Nc3 Qa5 d4 Nf6 Nf3 Bf5 Ne5 c6 g4 [ECO B01 Scandinavian defence] e4 d5 ed Qd5 Nc3 Qa5 d4 Nf6 Nf3 Bf5 [ECO B01 Scandinavian defence, Lasker variation] e4 d5 ed Qd5 Nc3 Qa5 d4 Nf6 Nf3 Bg4 h3 [ECO B01 Scandinavian defence] e4 d5 [ECO B00 KP: Neo-Mongoloid defence] e4 Nc6 d4 f6 [ECO B00 KP: Nimzovich defence, Bogolyubov variation] e4 Nc6 d4 d5 Nc3 [ECO B00 KP: Nimzovich defence, Marshall gambit] e4 Nc6 d4 d5 ed Qd5 Nc3 [ECO B00 KP: Nimzovich defence] e4 Nc6 d4 [ECO B00 KP: Colorado counter] e4 Nc6 Nf3 f5 [ECO B00 KP: Nimzovich defence] e4 Nc6 Nf3 [ECO B00 KP: Nimzovich defence, Wheeler gambit] e4 Nc6 b4 Nb4 c3 Nc6 d4 [ECO B00 KP: Nimzovich defence] e4 Nc6 [ECO B00 Guatemala defence] e4 b6 d4 Ba6 [ECO B00 Owen defence] e4 b6 [ECO B00 St. George defence] e4 a6 [ECO B00 Reversed Grob ] e4 g5 [ECO B00 Carr's defence] e4 h6 [ECO B00 Fried fox defence] e4 f6 d4 Kf7 [ECO B00 Barnes defence] e4 f6 [ECO B00 Fred] e4 f5 [ECO B00 Lemming defence] e4 Na6 [ECO B00 Corn stalk defence] e4 a5 [ECO B00 Hippopotamus defence] e4 Nh6 d4 g6 c4 f6 [ECO B00 King's pawn opening] e4 [ECO D69 QGD: Orthodox defence, classical, 13.de] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Bd3 dc Bc4 Nd5 Be7 Qe7 o-o Nc3 Rc3 e5 de Ne5 Ne5 Qe5 [ECO D68 QGD: Orthodox defence, classical, 13.d1c2 ] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Bd3 dc Bc4 Nd5 Be7 Qe7 o-o Nc3 Rc3 e5 Qc2 [ECO D68 QGD: Orthodox defence, classical, 13.d1b1 ] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Bd3 dc Bc4 Nd5 Be7 Qe7 o-o Nc3 Rc3 e5 Qb1 [ECO D68 QGD: Orthodox defence, classical variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Bd3 dc Bc4 Nd5 Be7 Qe7 o-o Nc3 Rc3 e5 [ECO D67 QGD: Orthodox defence, Bd3 line, 11.O-O] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Bd3 dc Bc4 Nd5 Be7 Qe7 o-o [ECO D67 QGD: Orthodox defence, Bd3 line, Alekhine variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Bd3 dc Bc4 Nd5 Be7 Qe7 Ne4 [ECO D67 QGD: Orthodox defence, Bd3 line] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Bd3 dc Bc4 Nd5 Be7 Qe7 [ECO D67 QGD: Orthodox defence, Bd3 line, Janowski variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Bd3 dc Bc4 Nd5 h4 [ECO D67 QGD: Orthodox defence, Bd3 line, Capablanca freeing manoevre] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Bd3 dc Bc4 Nd5 [ECO D66 QGD: Orthodox defence, Bd3 line, fianchetto variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Bd3 dc Bc4 b5 [ECO D66 QGD: Orthodox defence, Bd3 line] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Bd3 [ECO D65 QGD: Orthodox defence, Rubinstein attack, main line] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Qc2 a6 cd [ECO D64 QGD: Orthodox defence, Rubinstein attack, Gr\"unfeld variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Qc2 a6 a3 [ECO D64 QGD: Orthodox defence, Rubinstein attack, Karlsbad variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Qc2 a6 [ECO D64 QGD: Orthodox defence, Rubinstein attack, Wolf variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Qc2 Ne4 [ECO D64 QGD: Orthodox defence, Rubinstein attack ] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 Qc2 [ECO D63 QGD: Orthodox defence] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 c6 [ECO D63 QGD: Orthodox defence, Swiss, Karlsbad variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 a6 cd [ECO D63 QGD: Orthodox defence, Swiss variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 a6 [ECO D63 QGD: Orthodox defence, Capablanca variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 b6 cd ed Bb5 [ECO D63 QGD: Orthodox defence, Pillsbury attack] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 b6 cd ed Bd3 [ECO D63 QGD: Orthodox defence, 7.Rc1] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Rc1 [ECO D62 QGD: Orthodox defence, 7.Qc2 c5, 8.cd ] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Qc2 c5 cd [ECO D61 QGD: Orthodox defence, Rubinstein variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Qc2 [ECO D60 QGD: Orthodox defence, Rauzer variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Qb3 [ECO D60 QGD: Orthodox defence, Botvinnik variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 Bd3 [ECO D60 QGD: Orthodox defence] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 N8d7 [ECO D59 QGD: Tartakower variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 h6 Bh4 b6 cd Nd5 Be7 Qe7 Nd5 ed Rc1 Be6 [ECO D59 QGD: Tartakower system, 8.cd Nxd5] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 h6 Bh4 b6 cd Nd5 [ECO D58 QGD: Tartakower system] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 h6 Bh4 b6 [ECO D57 QGD: Lasker defence, Bernstein variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 h6 Bh4 Ne4 Be7 Qe7 cd Nc3 bc ed Qb3 Qd6 [ECO D57 QGD: Lasker defence, main line] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 h6 Bh4 Ne4 Be7 Qe7 cd Nc3 bc [ECO D56 QGD: Lasker defence, Russian variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 h6 Bh4 Ne4 Be7 Qe7 Qc2 Nf6 Bd3 dc Bc4 c5 o-o Nc6 f1d1 Bd7 [ECO D56 QGD: Lasker defence, Teichmann variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 h6 Bh4 Ne4 Be7 Qe7 Qc2 [ECO D56 QGD: Lasker defence] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 h6 Bh4 Ne4 [ECO D55 QGD: Neo-orthodox variation, 7.Bh4] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 h6 Bh4 [ECO D55 QGD: Petrosian variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 h6 Bf6 Bf6 Rc1 c6 Bd3 Nd7 o-o dc Bc4 [ECO D55 QGD: Neo-orthodox variation, 7.Bxf6] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 h6 Bf6 [ECO D55 QGD: Neo-orthodox variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 h6 [ECO D55 QGD: Pillsbury attack] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 b6 Bd3 Bb7 cd ed Ne5 [ECO D55 QGD: 6.Nf3] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Nf3 [ECO D54 QGD: Anti-neo-orthodox variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o Rc1 [ECO D53 QGD: 4.Bg5 Be7, 5.e3 O-O] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 o-o [ECO D53 QGD: Lasker variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 e3 Ne4 [ECO D53 QGD: 4.Bg5 Be7] d4 d5 c4 e6 Nc3 Nf6 Bg5 Be7 [ECO D52 QGD: Cambridge Springs defence, Yugoslav variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 N8d7 e3 c6 Nf3 Qa5 cd Nd5 [ECO D52 QGD: Cambridge Springs defence, 7.cd] d4 d5 c4 e6 Nc3 Nf6 Bg5 N8d7 e3 c6 Nf3 Qa5 cd [ECO D52 QGD: Cambridge Springs defence, Capablanca variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 N8d7 e3 c6 Nf3 Qa5 Bf6 [ECO D52 QGD: Cambridge Springs defence, Rubinstein variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 N8d7 e3 c6 Nf3 Qa5 Nd2 dc [ECO D52 QGD: Cambridge Springs defence, Argentine variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 N8d7 e3 c6 Nf3 Qa5 Nd2 Bb4 Qc2 o-o Bh4 [ECO D52 QGD: Cambridge Springs defence, Bogolyubov variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 N8d7 e3 c6 Nf3 Qa5 Nd2 Bb4 Qc2 [ECO D52 QGD: Cambridge Springs defence] d4 d5 c4 e6 Nc3 Nf6 Bg5 N8d7 e3 c6 Nf3 Qa5 [ECO D?? QGD] d4 d5 c4 e6 Nc3 Nf6 Bg5 N8d7 e3 c6 Nf3 [ECO D51 QGD: Capablanca anti-Cambridge Springs variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 N8d7 e3 c6 a3 [ECO D51 QGD: 5...c6] d4 d5 c4 e6 Nc3 Nf6 Bg5 N8d7 e3 c6 [ECO D51 QGD: Manhattan variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 N8d7 e3 Bb4 [ECO D51 QGD] d4 d5 c4 e6 Nc3 Nf6 Bg5 N8d7 e3 [ECO D51 QGD: Alekhine variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 N8d7 Nf3 c6 e4 [ECO D51 QGD: Rochlin variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 N8d7 Nf3 c6 Rc1 Qa5 Bd2 [ECO D51 QGD: 4.Bg5 Nbd7] d4 d5 c4 e6 Nc3 Nf6 Bg5 N8d7 [ECO D50 QGD: Canal variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 c5 cd Qb6 [ECO D50 QGD: Semi-Tarrasch] d4 d5 c4 e6 Nc3 Nf6 Bg5 c5 cd [ECO D50 QGD: Semi-Tarrasch, Primitive Pillsbury variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 c5 Nf3 cd Qd4 [ECO D50 QGD: Semi-Tarrasch, Krause variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 c5 Nf3 cd Nd4 e5 N4b5 a6 Qa4 [ECO D50 QGD: Been-Koomen variation] d4 d5 c4 e6 Nc3 Nf6 Bg5 c5 [ECO D50 QGD: 4.Bg5] d4 d5 c4 e6 Nc3 Nf6 Bg5 [ECO D49 QGD semi-Slav: Meran, Rellstab attack] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 dc Bc4 b5 Bd3 a6 e4 c5 e5 cd Nb5 Ne5 Ne5 ab o-o Qd5 Qe2 Ba6 Bg5 [ECO D49 QGD semi-Slav: Meran, Sozin variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 dc Bc4 b5 Bd3 a6 e4 c5 e5 cd Nb5 Ne5 Ne5 ab o-o [ECO D49 QGD semi-Slav: Meran, Stahlberg variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 dc Bc4 b5 Bd3 a6 e4 c5 e5 cd Nb5 Ne5 Ne5 ab Qf3 [ECO D49 QGD semi-Slav: Meran, Sozin variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 dc Bc4 b5 Bd3 a6 e4 c5 e5 cd Nb5 Ne5 [ECO D49 QGD semi-Slav: Meran, Rabinovich variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 dc Bc4 b5 Bd3 a6 e4 c5 e5 cd Nb5 Ng4 [ECO D49 QGD semi-Slav: Meran, Blumenfeld variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 dc Bc4 b5 Bd3 a6 e4 c5 e5 cd Nb5 [ECO D48 QGD semi-Slav: Meran, old main line] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 dc Bc4 b5 Bd3 a6 e4 c5 e5 [ECO D48 QGD semi-Slav: Meran, Reynolds' variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 dc Bc4 b5 Bd3 a6 e4 c5 d5 [ECO D48 QGD semi-Slav: Meran] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 dc Bc4 b5 Bd3 a6 e4 c5 [ECO D48 QGD semi-Slav: Meran, Pir\'c variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 dc Bc4 b5 Bd3 a6 e4 b4 [ECO D48 QGD semi-Slav: Meran, 8...a6] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 dc Bc4 b5 Bd3 a6 [ECO D47 QGD semi-Slav: Meran, Wade variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 dc Bc4 b5 Bd3 Bb7 [ECO D47 QGD semi-Slav: neo-Meran ] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 dc Bc4 b5 Bd3 b4 [ECO D47 QGD semi-Slav: Meran variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 dc Bc4 b5 [ECO D47 QGD semi-Slav: 7.Bc4] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 dc Bc4 [ECO D46 QGD semi-Slav: Chigorin defence] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 Bd6 [ECO D46 QGD semi-Slav: Romih variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 Bb4 [ECO D46 QGD semi-Slav: Bogolyubov variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 Be7 [ECO D46 QGD semi-Slav: 6.Bd3] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Bd3 [ECO D45 QGD semi-Slav: Rubinstein system] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Ne5 [ECO D45 QGD semi-Slav: Stoltz variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 Qc2 [ECO D45 QGD semi-Slav: 5...Nd7] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 N8d7 [ECO D45 QGD semi-Slav: accelerated Meran ] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 a6 [ECO D45 QGD semi-Slav: stonewall defence] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 Ne4 Bd3 f5 [ECO D45 QGD semi-Slav: 5.e3] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 e3 [ECO D44 QGD semi-Slav: anti-Meran, Alatortsev system] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 Bg5 dc e4 b5 e5 h6 Bh4 g5 Ng5 Nd5 [ECO D44 QGD semi-Slav: anti-Meran, Szab\'o variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 Bg5 dc e4 b5 e5 h6 Bh4 g5 Ng5 hg Bg5 N8d7 Qf3 [ECO D44 QGD semi-Slav: anti-Meran, Lilienthal variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 Bg5 dc e4 b5 e5 h6 Bh4 g5 Ng5 hg Bg5 N8d7 g3 [ECO D44 QGD semi-Slav: anti-Meran gambit] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 Bg5 dc e4 b5 e5 h6 Bh4 g5 Ng5 [ECO D44 QGD semi-Slav: Ekstrom variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 Bg5 dc e4 b5 e5 h6 Bh4 g5 ef gh Ne5 [ECO D44 QGD semi-Slav: Botvinnik system ] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 Bg5 dc e4 [ECO D44 QGD semi-Slav: 5.Bg5 dc] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 Bg5 dc [ECO D43 QGD semi-Slav: Hastings variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 Bg5 h6 Bf6 Qf6 Qb3 [ECO D43 QGD semi-Slav] d4 d5 c4 e6 Nc3 Nf6 Nf3 c6 [ECO D42 QGD: Semi-Tarrasch, 7.Bd3] d4 d5 c4 e6 Nc3 Nf6 Nf3 c5 cd Nd5 e3 Nc6 Bd3 [ECO D41 QGD: Semi-Tarrasch with e3] d4 d5 c4 e6 Nc3 Nf6 Nf3 c5 cd Nd5 e3 [ECO D41 QGD: Semi-Tarrasch, San Sebastian variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c5 cd Nd5 e4 Nc3 bc cd cd Bb4 Bd2 Qa5 [ECO D41 QGD: Semi-Tarrasch, Kmoch variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c5 cd Nd5 e4 Nc3 bc cd cd Bb4 Bd2 Bd2 Qd2 o-o Bb5 [ECO D41 QGD: Semi-Tarrasch, 5.cd] d4 d5 c4 e6 Nc3 Nf6 Nf3 c5 cd [ECO D40 QGD: Semi-Tarrasch defence, Pillsbury variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c5 Bg5 [ECO D40 QGD: Semi-Tarrasch, Levenfish variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c5 e3 Nc6 Bd3 Bd6 o-o o-o Qe2 Qe7 dc Bc5 e4 [ECO D40 QGD: Semi-Tarrasch, symmetrical variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 c5 e3 Nc6 Bd3 Bd6 o-o o-o [ECO D40 QGD: Semi-Tarrasch defence] d4 d5 c4 e6 Nc3 Nf6 Nf3 c5 [ECO D39 QGD: Ragozin, Vienna variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 Bb4 Bg5 dc [ECO D38 QGD: Ragozin variation] d4 d5 c4 e6 Nc3 Nf6 Nf3 Bb4 [ECO D37 QGD: classical variation ] d4 d5 c4 e6 Nc3 Nf6 Nf3 Be7 Bf4 [ECO D37 QGD: 4.Nf3] d4 d5 c4 e6 Nc3 Nf6 Nf3 [ECO D36 QGD: exchange, positional line, 6.Qc2] d4 d5 c4 e6 Nc3 Nf6 cd ed Bg5 c6 Qc2 [ECO D35 QGD: exchange, positional line, 5...c6] d4 d5 c4 e6 Nc3 Nf6 cd ed Bg5 c6 [ECO D35 QGD: exchange, chameleon variation] d4 d5 c4 e6 Nc3 Nf6 cd ed Bg5 Be7 e3 o-o Bd3 N8d7 Qc2 Re8 N1e2 Nf8 o-o-o [ECO D35 QGD: exchange, positional line] d4 d5 c4 e6 Nc3 Nf6 cd ed Bg5 [ECO D35 QGD: exchange, S\"amisch variation] d4 d5 c4 e6 Nc3 Nf6 cd ed Nf3 N8d7 Bf4 [ECO D35 QGD: exchange variation] d4 d5 c4 e6 Nc3 Nf6 cd [ECO D35 QGD: Harrwitz attack] d4 d5 c4 e6 Nc3 Nf6 Bf4 [ECO D35 QGD: 3...Nf6] d4 d5 c4 e6 Nc3 Nf6 [ECO D34 QGD: Tarrasch, Stoltz variation] d4 d5 c4 e6 Nc3 c5 cd ed Nf3 Nc6 g3 Nf6 Bg2 Be7 o-o o-o Bg5 Be6 Rc1 b6 [ECO D34 QGD: Tarrasch, Bogolyubov variation] d4 d5 c4 e6 Nc3 c5 cd ed Nf3 Nc6 g3 Nf6 Bg2 Be7 o-o o-o Bg5 Be6 Rc1 c4 [ECO D34 QGD: Tarrasch, Prague variation, 9.Bg5] d4 d5 c4 e6 Nc3 c5 cd ed Nf3 Nc6 g3 Nf6 Bg2 Be7 o-o o-o Bg5 [ECO D34 QGD: Tarrasch, R\'eti variation] d4 d5 c4 e6 Nc3 c5 cd ed Nf3 Nc6 g3 Nf6 Bg2 Be7 o-o o-o dc Bc5 Na4 [ECO D34 QGD: Tarrasch, Prague variation, Normal position] d4 d5 c4 e6 Nc3 c5 cd ed Nf3 Nc6 g3 Nf6 Bg2 Be7 o-o o-o [ECO D34 QGD: Tarrasch, Prague variation, 7...Be7] d4 d5 c4 e6 Nc3 c5 cd ed Nf3 Nc6 g3 Nf6 Bg2 Be7 [ECO D33 QGD: Tarrasch, Wagner variation] d4 d5 c4 e6 Nc3 c5 cd ed Nf3 Nc6 g3 Nf6 Bg2 Bg4 [ECO D33 QGD: Tarrasch, Prague variation] d4 d5 c4 e6 Nc3 c5 cd ed Nf3 Nc6 g3 Nf6 [ECO D33 QGD: Tarrasch, Schlechter-Rubinstein system, Rey Ardid variation] d4 d5 c4 e6 Nc3 c5 cd ed Nf3 Nc6 g3 c4 e4 [ECO D33 QGD: Tarrasch, Folkestone variation] d4 d5 c4 e6 Nc3 c5 cd ed Nf3 Nc6 g3 c4 [ECO D33 QGD: Tarrasch, Schlechter-Rubinstein system] d4 d5 c4 e6 Nc3 c5 cd ed Nf3 Nc6 g3 [ECO D32 QGD: Tarrasch defence] d4 d5 c4 e6 Nc3 c5 cd ed Nf3 [ECO D32 QGD: Tarrasch defence, Marshall gambit] d4 d5 c4 e6 Nc3 c5 cd ed e4 [ECO D32 QGD: Tarrasch defence, Tarrasch gambit] d4 d5 c4 e6 Nc3 c5 cd ed dc d4 Na4 b5 [ECO D32 QGD: Tarrasch defence, 4.cd ed] d4 d5 c4 e6 Nc3 c5 cd ed [ECO D32 QGD: Tarrasch, von Hennig-Schara gambit] d4 d5 c4 e6 Nc3 c5 cd cd [ECO D32 QGD: Tarrasch defence] d4 d5 c4 e6 Nc3 c5 [ECO D31 QGD: semi-Slav, Marshall gambit] d4 d5 c4 e6 Nc3 c6 e4 [ECO D31 QGD: semi-Slav, Abrahams variation] d4 d5 c4 e6 Nc3 c6 Nf3 dc a4 Bb4 e3 b5 Bd2 a5 [ECO D31 QGD: semi-Slav, Junge variation] d4 d5 c4 e6 Nc3 c6 Nf3 dc a4 Bb4 e3 b5 Bd2 Qb6 [ECO D31 QGD: semi-Slav, Koomen variation] d4 d5 c4 e6 Nc3 c6 Nf3 dc a4 Bb4 e3 b5 Bd2 Qe7 [ECO D31 QGD: semi-Slav, Noteboom variation] d4 d5 c4 e6 Nc3 c6 Nf3 dc [ECO D31 QGD: semi-Slav] d4 d5 c4 e6 Nc3 c6 [ECO D31 QGD: Charousek variation] d4 d5 c4 e6 Nc3 Be7 [ECO D31 QGD: Alapin variation] d4 d5 c4 e6 Nc3 b6 [ECO D31 QGD: Janowski variation] d4 d5 c4 e6 Nc3 a6 [ECO D31 QGD: 3.Nc3] d4 d5 c4 e6 Nc3 [ECO D30 QGD: Hastings variation] d4 d5 c4 e6 Nf3 Nf6 Bg5 h6 Bf6 Qf6 Nc3 c6 Qb3 [ECO D30 QGD: Capablanca-Duras variation] d4 d5 c4 e6 Nf3 Nf6 Bg5 h6 [ECO D30 QGD: Vienna variation] d4 d5 c4 e6 Nf3 Nf6 Bg5 Bb4 [ECO D30 QGD: Capablanca variation] d4 d5 c4 e6 Nf3 Nf6 Bg5 N8d7 e3 c6 N1d2 [ECO D30 QGD] d4 d5 c4 e6 Nf3 Nf6 Bg5 [ECO D30 QGD: Spielmann variation] d4 d5 c4 e6 Nf3 Nf6 e3 c6 N1d2 g6 [ECO D30 QGD Slav: Semmering variation] d4 d5 c4 e6 Nf3 Nf6 e3 c6 N1d2 N8d7 Bd3 c5 [ECO D30 QGD Slav] d4 d5 c4 e6 Nf3 Nf6 e3 c6 N1d2 N8d7 [ECO D30 QGD: Stonewall variation] d4 d5 c4 e6 Nf3 Nf6 e3 c6 N1d2 Ne4 Bd3 f5 [ECO D30 QGD Slav] d4 d5 c4 e6 Nf3 Nf6 e3 c6 N1d2 [ECO D30 Queen's gambit declined] d4 d5 c4 e6 [ECO D29 QGA: classical, Smyslov variation] d4 d5 c4 dc Nf3 Nf6 e3 e6 Bc4 c5 o-o a6 Qe2 b5 Bb3 Bb7 Rd1 N8d7 Nc3 Bd6 [ECO D29 QGA: classical, 8...Bb7] d4 d5 c4 dc Nf3 Nf6 e3 e6 Bc4 c5 o-o a6 Qe2 b5 Bb3 Bb7 [ECO D28 QGA: classical, Flohr variation] d4 d5 c4 dc Nf3 Nf6 e3 e6 Bc4 c5 o-o a6 Qe2 b5 Bb3 Nc6 Rd1 c4 Bc2 Nb4 Nc3 Nc2 Qc2 Bb7 d5 Qc7 [ECO D28 QGA: classical, 7...b5] d4 d5 c4 dc Nf3 Nf6 e3 e6 Bc4 c5 o-o a6 Qe2 b5 [ECO D28 QGA: classical, 7.Qe2] d4 d5 c4 dc Nf3 Nf6 e3 e6 Bc4 c5 o-o a6 Qe2 [ECO D27 QGA: classical, Geller variation] d4 d5 c4 dc Nf3 Nf6 e3 e6 Bc4 c5 o-o a6 e4 [ECO D27 QGA: classical, Rubinstein variation] d4 d5 c4 dc Nf3 Nf6 e3 e6 Bc4 c5 o-o a6 a4 [ECO D27 QGA: classical, 6...a6] d4 d5 c4 dc Nf3 Nf6 e3 e6 Bc4 c5 o-o a6 [ECO D26 QGA: classical, Steinitz variation] d4 d5 c4 dc Nf3 Nf6 e3 e6 Bc4 c5 o-o cd [ECO D26 QGA: classical variation, 6.O-O] d4 d5 c4 dc Nf3 Nf6 e3 e6 Bc4 c5 o-o [ECO D26 QGA: classical, Furman variation] d4 d5 c4 dc Nf3 Nf6 e3 e6 Bc4 c5 Qe2 a6 dc Bc5 o-o Nc6 e4 b5 e5 [ECO D26 QGA: classical variation] d4 d5 c4 dc Nf3 Nf6 e3 e6 Bc4 c5 [ECO D26 QGA: 4...e6] d4 d5 c4 dc Nf3 Nf6 e3 e6 [ECO D25 QGA, Flohr variation] d4 d5 c4 dc Nf3 Nf6 e3 Be6 [ECO D25 QGA, Janowsky-Larsen variation] d4 d5 c4 dc Nf3 Nf6 e3 Bg4 [ECO D25 QGA, Smyslov variation] d4 d5 c4 dc Nf3 Nf6 e3 g6 [ECO D25 QGA, 4.e3] d4 d5 c4 dc Nf3 Nf6 e3 [ECO D24 QGA, Bogolyubov variation] d4 d5 c4 dc Nf3 Nf6 Nc3 a6 e4 [ECO D24 QGA, 4.Nc3] d4 d5 c4 dc Nf3 Nf6 Nc3 [ECO D23 QGA: Mannheim variation] d4 d5 c4 dc Nf3 Nf6 Qa4 [ECO D23 Queen's gambit accepted] d4 d5 c4 dc Nf3 Nf6 [ECO D21 QGA: Alekhine defense, Borisenko-Furman variation] d4 d5 c4 dc Nf3 a6 e4 [ECO D22 QGA: Haberditz variation] d4 d5 c4 dc Nf3 a6 e3 b5 [ECO D22 QGA: Alekhine defence, Alatortsev variation] d4 d5 c4 dc Nf3 a6 e3 Bg4 Bc4 e6 d5 [ECO D22 QGA: Alekhine defence] d4 d5 c4 dc Nf3 a6 [ECO D21 QGA: Ericson variation] d4 d5 c4 dc Nf3 b5 [ECO D21 QGA: 3.Nf3] d4 d5 c4 dc Nf3 [ECO D20 QGA: Schwartz defence] d4 d5 c4 dc e4 f5 [ECO D20 QGA: Linares variation] d4 d5 c4 dc e4 c5 d5 Nf6 Nc3 b5 [ECO D20 QGA: 3.e4] d4 d5 c4 dc e4 [ECO D20 Queen's gambit accepted] d4 d5 c4 dc [ECO D19 QGD Slav: Dutch, S\"amisch variation] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc a4 Bf5 e3 e6 Bc4 Bb4 o-o o-o Qe2 Ne4 g4 [ECO D19 QGD Slav: Dutch variation, main line] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc a4 Bf5 e3 e6 Bc4 Bb4 o-o o-o Qe2 [ECO D19 QGD Slav: Dutch variation] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc a4 Bf5 e3 e6 Bc4 Bb4 o-o [ECO D18 QGD Slav: Dutch, Lasker variation] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc a4 Bf5 e3 Na6 [ECO D18 QGD Slav: Dutch variation] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc a4 Bf5 e3 [ECO D17 QGD Slav: Wiesbaden variation] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc a4 Bf5 Ne5 e6 [ECO D17 QGD Slav: Carlsbad variation] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc a4 Bf5 Ne5 N8d7 Nc4 Qc7 g3 e5 [ECO D17 QGD Slav: Krause attack] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc a4 Bf5 Ne5 [ECO D17 QGD Slav: Czech defence] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc a4 Bf5 [ECO D16 QGD Slav: Steiner variation] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc a4 Bg4 [ECO D16 QGD Slav: Soultanb\'eieff variation] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc a4 e6 [ECO D16 QGD Slav: Smyslov variation] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc a4 Na6 e4 Bg4 [ECO D16 QGD Slav accepted: Alapin variation] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc a4 [ECO D15 QGD Slav: Tolush-Geller gambit] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc e4 b5 e5 [ECO D15 QGD Slav: Slav gambit] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc e4 [ECO D15 QGD Slav: 5.e3 ] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc e3 [ECO D15 QGD Slav accepted] d4 d5 c4 c6 Nf3 Nf6 Nc3 dc [ECO D15 QGD Slav: Schlechter variation] d4 d5 c4 c6 Nf3 Nf6 Nc3 g6 [ECO D15 QGD Slav: S\"uchting variation] d4 d5 c4 c6 Nf3 Nf6 Nc3 Qb6 [ECO D15 QGD Slav: 4.Nc3] d4 d5 c4 c6 Nf3 Nf6 Nc3 [ECO D14 QGD Slav: exchange, Trifunovi\'c variation] d4 d5 c4 c6 Nf3 Nf6 cd cd Nc3 Nc6 Bf4 Bf5 e3 e6 Qb3 Bb4 [ECO D14 QGD Slav: exchange variation, 6.Bf4 Bf5] d4 d5 c4 c6 Nf3 Nf6 cd cd Nc3 Nc6 Bf4 Bf5 [ECO D13 QGD Slav: exchange variation] d4 d5 c4 c6 Nf3 Nf6 cd cd [ECO D12 QGD Slav: Amsterdam variation] d4 d5 c4 c6 Nf3 Nf6 e3 Bf5 cd cd Nc3 e6 Ne5 N6d7 [ECO D12 QGD Slav: exchange variation] d4 d5 c4 c6 Nf3 Nf6 e3 Bf5 cd cd Nc3 [ECO D12 QGD Slav: Landau variation] d4 d5 c4 c6 Nf3 Nf6 e3 Bf5 cd cd Qb3 Qc8 Bd2 e6 Na3 [ECO D12 QGD Slav: 4.e3 Bf5] d4 d5 c4 c6 Nf3 Nf6 e3 Bf5 [ECO D11 QGD Slav: 4.e3] d4 d5 c4 c6 Nf3 Nf6 e3 [ECO D11 QGD Slav: Breyer variation] d4 d5 c4 c6 Nf3 Nf6 N1d2 [ECO D11 QGD Slav: 3.Nf3] d4 d5 c4 c6 Nf3 [ECO D10 QGD Slav defence: exchange variation] d4 d5 c4 c6 cd [ECO D10 QGD Slav: Winawer counter-gambit] d4 d5 c4 c6 Nc3 e5 [ECO D10 QGD Slav defence, Alekhine variation] d4 d5 c4 c6 Nc3 dc e4 [ECO D10 QGD Slav defence] d4 d5 c4 c6 [ECO D09 QGD: Albin counter-gambit, 5.g3] d4 d5 c4 e5 de d4 Nf3 Nc6 g3 [ECO D08 QGD: Albin counter-gambit, Balogh variation] d4 d5 c4 e5 de d4 Nf3 Nc6 N1d2 Qe7 [ECO D08 QGD: Albin counter-gambit, Janowski variation] d4 d5 c4 e5 de d4 Nf3 Nc6 N1d2 f6 [ECO D08 QGD: Albin counter-gambit, Kr\'enosz variation] d4 d5 c4 e5 de d4 Nf3 Nc6 N1d2 Bg4 h3 Bf3 Nf3 Bb4 Bd2 Qe7 [ECO D08 QGD: Albin counter-gambit, Alapin variation] d4 d5 c4 e5 de d4 Nf3 Nc6 N1d2 [ECO D08 QGD: Albin counter-gambit] d4 d5 c4 e5 de d4 Nf3 [ECO D08 QGD: Albin counter-gambit, Lasker trap] d4 d5 c4 e5 de d4 e3 Bb4 Bd2 de [ECO D08 QGD: Albin counter-gambit] d4 d5 c4 e5 [ECO D07 QGD: Chigorin defence, Janowski variation] d4 d5 c4 Nc6 Nc3 dc Nf3 [ECO D07 QGD: Chigorin defence] d4 d5 c4 Nc6 [ECO D06 QGD: symmetrical defence] d4 d5 c4 c5 [ECO D06 QGD: Marshall defence] d4 d5 c4 Nf6 [ECO D06 QGD: Grau defence] d4 d5 c4 Bf5 [ECO D06 Queen's gambit declined] d4 d5 c4 [ECO D05 Colle system] d4 d5 Nf3 Nf6 e3 e6 Bd3 c5 c3 [ECO D05 Queen's pawn game, Rubinstein variation] d4 d5 Nf3 Nf6 e3 e6 Bd3 c5 b3 [ECO D05 Queen's pawn game] d4 d5 Nf3 Nf6 e3 e6 Bd3 [ECO D05 Queen's pawn game, Zukertort variation] d4 d5 Nf3 Nf6 e3 e6 N1d2 c5 b3 [ECO D05 Queen's pawn game] d4 d5 Nf3 Nf6 e3 e6 [ECO D04 Queen's pawn game] d4 d5 Nf3 Nf6 e3 [ECO D03 Torre attack ] d4 d5 Nf3 Nf6 Bg5 [ECO D02 Queen's bishop game] d4 d5 Nf3 Nf6 Bf4 [ECO D02 Queen's pawn game] d4 d5 Nf3 Nf6 [ECO D02 Queen's pawn game, Krause variation] d4 d5 Nf3 c5 [ECO D02 Queen's pawn game, Chigorin variation] d4 d5 Nf3 Nc6 [ECO D02 Queen's pawn game] d4 d5 Nf3 [ECO D01 Richter-Veresov attack, Richter variation] d4 d5 Nc3 Nf6 Bg5 Bf5 f3 [ECO D01 Richter-Veresov attack, Veresov variation] d4 d5 Nc3 Nf6 Bg5 Bf5 Bf6 [ECO D01 Richter-Veresov attack] d4 d5 Nc3 Nf6 Bg5 [ECO D00 Blackmar-Diemer: Lemberg counter-gambit] d4 d5 Nc3 Nf6 e4 e5 [ECO D00 Blackmar-Diemer: Euwe defence] d4 d5 Nc3 Nf6 e4 de f3 ef Nf3 e6 [ECO D00 Blackmar-Diemer gambit] d4 d5 Nc3 Nf6 e4 [ECO D00 Queen's pawn: Anti-Veresov] d4 d5 Nc3 Bg4 [ECO D00 Queen's pawn: Chigorin variation] d4 d5 Nc3 [ECO D00 Queen's pawn: stonewall attack] d4 d5 e3 Nf6 Bd3 [ECO D00 Blackmar gambit] d4 d5 e4 [ECO D00 Levitsky attack ] d4 d5 Bg5 [ECO D00 Queen's pawn, Mason variation, Steinitz counter-gambit] d4 d5 Bf4 c5 [ECO D00 Queen's pawn, Mason variation] d4 d5 Bf4 [ECO D00 Queen's pawn game] d4 d5 [ECO E59 Nimzo-Indian: 4.e3, main line] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Nf3 d5 Bd3 c5 o-o Nc6 a3 Bc3 bc dc Bc4 [ECO E58 Nimzo-Indian: 4.e3, main line with 8...Bxc3] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Nf3 d5 Bd3 c5 o-o Nc6 a3 Bc3 bc [ECO E57 Nimzo-Indian: 4.e3, main line with 8...dc and 9...cd] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Nf3 d5 Bd3 c5 o-o Nc6 a3 dc Bc4 cd [ECO E56 Nimzo-Indian: 4.e3, main line with 7...Nc6] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Nf3 d5 Bd3 c5 o-o Nc6 [ECO E55 Nimzo-Indian: 4.e3, Gligori\'c system, Bronstein variation] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Nf3 d5 Bd3 c5 o-o dc Bc4 N8d7 [ECO E54 Nimzo-Indian: 4.e3, Gligori\'c system, Smyslov variation] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Nf3 d5 Bd3 c5 o-o dc Bc4 Qe7 [ECO E54 Nimzo-Indian: 4.e3, Gligori\'c system with 7...dc] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Nf3 d5 Bd3 c5 o-o dc Bc4 [ECO E53 Nimzo-Indian: 4.e3, Gligori\'c system with 7...Nbd7] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Nf3 d5 Bd3 c5 o-o N8d7 [ECO E53 Nimzo-Indian: 4.e3, Keres variation] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Nf3 d5 Bd3 c5 o-o b6 [ECO E53 Nimzo-Indian: 4.e3, main line with ...c5] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Nf3 d5 Bd3 c5 [ECO E52 Nimzo-Indian: 4.e3, main line with ...b6] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Nf3 d5 Bd3 b6 [ECO E51 Nimzo-Indian: 4.e3, Ragozin variation] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Nf3 d5 Bd3 Nc6 o-o dc [ECO E51 Nimzo-Indian: 4.e3 e8g8, 5.Nf3 d7d5] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Nf3 d5 [ECO E50 Nimzo-Indian: 4.e3 e8g8, 5.Nf3, without ...d5] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Nf3 [ECO E49 Nimzo-Indian: 4.e3, Botvinnik system] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Bd3 d5 a3 Bc3 bc [ECO E48 Nimzo-Indian: 4.e3 O-O, 5.Bd3 d5] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Bd3 d5 [ECO E47 Nimzo-Indian: 4.e3 O-O, 5.Bd3] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Bd3 [ECO E46 Nimzo-Indian: Simagin variation] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Ne2 d5 a3 Bd6 [ECO E46 Nimzo-Indian: Reshevsky variation] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o Ne2 [ECO E46 Nimzo-Indian: 4.e3 O-O] d4 Nf6 c4 e6 Nc3 Bb4 e3 o-o [ECO E45 Nimzo-Indian: 4.e3, Bronstein variation] d4 Nf6 c4 e6 Nc3 Bb4 e3 b6 Ne2 Ba6 [ECO E44 Nimzo-Indian: Fischer variation, 5.Ne2] d4 Nf6 c4 e6 Nc3 Bb4 e3 b6 Ne2 [ECO E43 Nimzo-Indian: Fischer variation] d4 Nf6 c4 e6 Nc3 Bb4 e3 b6 [ECO E42 Nimzo-Indian: 4.e3 c5, 5.Ne2 ] d4 Nf6 c4 e6 Nc3 Bb4 e3 c5 Ne2 [ECO E41 Nimzo-Indian: e3, H\"ubner variation] d4 Nf6 c4 e6 Nc3 Bb4 e3 c5 Bd3 Nc6 Nf3 Bc3 bc d6 [ECO E41 Nimzo-Indian: 4.e3 c5] d4 Nf6 c4 e6 Nc3 Bb4 e3 c5 [ECO E40 Nimzo-Indian: 4.e3, Taimanov variation] d4 Nf6 c4 e6 Nc3 Bb4 e3 Nc6 [ECO E40 Nimzo-Indian: 4.e3] d4 Nf6 c4 e6 Nc3 Bb4 e3 [ECO E39 Nimzo-Indian: classical, Pir\'c variation] d4 Nf6 c4 e6 Nc3 Bb4 Qc2 c5 dc o-o [ECO E38 Nimzo-Indian: classical, 4...c5] d4 Nf6 c4 e6 Nc3 Bb4 Qc2 c5 [ECO E37 Nimzo-Indian: classical, San Remo variation] d4 Nf6 c4 e6 Nc3 Bb4 Qc2 d5 a3 Bc3 Qc3 Ne4 Qc2 Nc6 e3 e5 [ECO E37 Nimzo-Indian: classical, Noa variation, main line, 7.Qc2] d4 Nf6 c4 e6 Nc3 Bb4 Qc2 d5 a3 Bc3 Qc3 Ne4 Qc2 [ECO E36 Nimzo-Indian: classical, Noa variation, main line] d4 Nf6 c4 e6 Nc3 Bb4 Qc2 d5 a3 Bc3 Qc3 Ne4 [ECO E36 Nimzo-Indian: classical, Botvinnik variation] d4 Nf6 c4 e6 Nc3 Bb4 Qc2 d5 a3 Bc3 Qc3 Nc6 [ECO E36 Nimzo-Indian: classical, Noa variation, 5.a3] d4 Nf6 c4 e6 Nc3 Bb4 Qc2 d5 a3 [ECO E35 Nimzo-Indian: classical, Noa variation, 5.cd ed] d4 Nf6 c4 e6 Nc3 Bb4 Qc2 d5 cd ed [ECO E34 Nimzo-Indian: classical, Noa variation] d4 Nf6 c4 e6 Nc3 Bb4 Qc2 d5 [ECO E33 Nimzo-Indian: classical, Milner-Barry variation] d4 Nf6 c4 e6 Nc3 Bb4 Qc2 Nc6 Nf3 d6 [ECO E33 Nimzo-Indian: classical, 4...Nc6] d4 Nf6 c4 e6 Nc3 Bb4 Qc2 Nc6 [ECO E32 Nimzo-Indian: classical, Adorjan gambit] d4 Nf6 c4 e6 Nc3 Bb4 Qc2 o-o a3 Bc3 Qc3 b5 [ECO E32 Nimzo-Indian: classical variation] d4 Nf6 c4 e6 Nc3 Bb4 Qc2 [ECO E31 Nimzo-Indian: Leningrad, main line] d4 Nf6 c4 e6 Nc3 Bb4 Bg5 h6 Bh4 c5 d5 d6 [ECO E30 Nimzo-Indian: Leningrad, ...b5 gambit] d4 Nf6 c4 e6 Nc3 Bb4 Bg5 h6 Bh4 c5 d5 b5 [ECO E30 Nimzo-Indian: Leningrad variation] d4 Nf6 c4 e6 Nc3 Bb4 Bg5 [ECO E29 Nimzo-Indian: S\"amisch, Capablanca variation] d4 Nf6 c4 e6 Nc3 Bb4 a3 Bc3 bc o-o e3 c5 Bd3 Nc6 Ne2 b6 e4 Ne8 [ECO E29 Nimzo-Indian: S\"amisch, main line] d4 Nf6 c4 e6 Nc3 Bb4 a3 Bc3 bc o-o e3 c5 Bd3 Nc6 [ECO E28 Nimzo-Indian: S\"amisch variation] d4 Nf6 c4 e6 Nc3 Bb4 a3 Bc3 bc o-o e3 [ECO E27 Nimzo-Indian: S\"amisch variation] d4 Nf6 c4 e6 Nc3 Bb4 a3 Bc3 bc o-o [ECO E26 Nimzo-Indian: S\"amisch, O'Kelly variation] d4 Nf6 c4 e6 Nc3 Bb4 a3 Bc3 bc c5 e3 b6 [ECO E26 Nimzo-Indian: S\"amisch variation] d4 Nf6 c4 e6 Nc3 Bb4 a3 Bc3 bc c5 e3 [ECO E25 Nimzo-Indian: S\"amisch, Romanovsky variation] d4 Nf6 c4 e6 Nc3 Bb4 a3 Bc3 bc c5 f3 d5 cd Nd5 dc f5 [ECO E25 Nimzo-Indian: S\"amisch, Keres variation] d4 Nf6 c4 e6 Nc3 Bb4 a3 Bc3 bc c5 f3 d5 cd Nd5 dc [ECO E25 Nimzo-Indian: S\"amisch variation] d4 Nf6 c4 e6 Nc3 Bb4 a3 Bc3 bc c5 f3 d5 cd [ECO E24 Nimzo-Indian: S\"amisch, Botvinnik variation] d4 Nf6 c4 e6 Nc3 Bb4 a3 Bc3 bc c5 f3 d5 e3 o-o cd Nd5 [ECO E24 Nimzo-Indian: S\"amisch variation] d4 Nf6 c4 e6 Nc3 Bb4 a3 Bc3 bc [ECO E23 Nimzo-Indian: Spielmann, St\aa hlberg variation] d4 Nf6 c4 e6 Nc3 Bb4 Qb3 c5 dc Nc6 Nf3 Ne4 Bd2 Nc5 Qc2 f5 g3 [ECO E23 Nimzo-Indian: Spielmann, San Remo variation] d4 Nf6 c4 e6 Nc3 Bb4 Qb3 c5 dc Nc6 Nf3 Ne4 Bd2 Nc5 [ECO E23 Nimzo-Indian: Spielmann, Karlsbad variation] d4 Nf6 c4 e6 Nc3 Bb4 Qb3 c5 dc Nc6 Nf3 Ne4 Bd2 Nd2 [ECO E23 Nimzo-Indian: Spielmann, 4...c5, 5.dc Nc6] d4 Nf6 c4 e6 Nc3 Bb4 Qb3 c5 dc Nc6 [ECO E22 Nimzo-Indian: Spielmann variation] d4 Nf6 c4 e6 Nc3 Bb4 Qb3 [ECO E21 Nimzo-Indian: three knights, Euwe variation] d4 Nf6 c4 e6 Nc3 Bb4 Nf3 c5 d5 Ne4 [ECO E21 Nimzo-Indian: three knights, Korchnoi variation] d4 Nf6 c4 e6 Nc3 Bb4 Nf3 c5 d5 [ECO E21 Nimzo-Indian: three knights variation] d4 Nf6 c4 e6 Nc3 Bb4 Nf3 [ECO E20 Nimzo-Indian: Romanishin-Kasparov system] d4 Nf6 c4 e6 Nc3 Bb4 g3 [ECO E20 Nimzo-Indian: Mikenas attack] d4 Nf6 c4 e6 Nc3 Bb4 Qd3 [ECO E20 Nimzo-Indian: Kmoch variation] d4 Nf6 c4 e6 Nc3 Bb4 f3 [ECO E20 Nimzo-Indian defence] d4 Nf6 c4 e6 Nc3 Bb4 [ECO E19 Queen's Indian: old main line, 9.Qxc3] d4 Nf6 c4 e6 Nf3 b6 g3 Bb7 Bg2 Be7 o-o o-o Nc3 Ne4 Qc2 Nc3 Qc3 [ECO E18 Queen's Indian: old main line, 7.Nc3] d4 Nf6 c4 e6 Nf3 b6 g3 Bb7 Bg2 Be7 o-o o-o Nc3 [ECO E17 Queen's Indian: Euwe variation] d4 Nf6 c4 e6 Nf3 b6 g3 Bb7 Bg2 Be7 o-o o-o b3 [ECO E17 Queen's Indian: old main line, 6.O-O] d4 Nf6 c4 e6 Nf3 b6 g3 Bb7 Bg2 Be7 o-o [ECO E17 Queen's Indian: Opo\v censky variation] d4 Nf6 c4 e6 Nf3 b6 g3 Bb7 Bg2 Be7 Nc3 Ne4 Bd2 [ECO E17 Queen's Indian: anti-Queen's Indian system] d4 Nf6 c4 e6 Nf3 b6 g3 Bb7 Bg2 Be7 Nc3 [ECO E17 Queen's Indian: 5.Bg2 Be7] d4 Nf6 c4 e6 Nf3 b6 g3 Bb7 Bg2 Be7 [ECO E16 Queen's Indian: Riumin variation] d4 Nf6 c4 e6 Nf3 b6 g3 Bb7 Bg2 Bb4 Bd2 Be7 [ECO E16 Queen's Indian: Yates variation] d4 Nf6 c4 e6 Nf3 b6 g3 Bb7 Bg2 Bb4 Bd2 a5 [ECO E16 Queen's Indian: Capablanca variation] d4 Nf6 c4 e6 Nf3 b6 g3 Bb7 Bg2 Bb4 [ECO E15 Queen's Indian: B\"urger variation] d4 Nf6 c4 e6 Nf3 b6 g3 Bb7 Bg2 c5 d5 ed Ng5 [ECO E15 Queen's Indian: Rubinstein variation] d4 Nf6 c4 e6 Nf3 b6 g3 Bb7 Bg2 c5 d5 ed Nh4 [ECO E15 Queen's Indian: 4.g3 Bb7] d4 Nf6 c4 e6 Nf3 b6 g3 Bb7 [ECO E15 Queen's Indian: Nimzovich variation ] d4 Nf6 c4 e6 Nf3 b6 g3 Ba6 [ECO E15 Queen's Indian: 4.g3] d4 Nf6 c4 e6 Nf3 b6 g3 [ECO E14 Queen's Indian: Averbakh variation] d4 Nf6 c4 e6 Nf3 b6 e3 Bb7 Bd3 c5 o-o Be7 b3 o-o Bb2 cd Nd4 [ECO E14 Queen's Indian: 4.e3] d4 Nf6 c4 e6 Nf3 b6 e3 [ECO E13 Queen's Indian: 4.Nc3, main line] d4 Nf6 c4 e6 Nf3 b6 Nc3 Bb7 Bg5 h6 Bh4 Bb4 [ECO E12 Queen's Indian: 4.Nc3, Botvinnik variation] d4 Nf6 c4 e6 Nf3 b6 Nc3 Bb7 Bg5 h6 Bh4 g5 Bg3 Nh5 [ECO E12 Queen's Indian: 4.Nc3] d4 Nf6 c4 e6 Nf3 b6 Nc3 [ECO E12 Queen's Indian: Petrosian system] d4 Nf6 c4 e6 Nf3 b6 a3 [ECO E12 Queen's Indian: Miles variation] d4 Nf6 c4 e6 Nf3 b6 Bf4 [ECO E12 Queen's Indian defence] d4 Nf6 c4 e6 Nf3 b6 [ECO E11 Bogo-Indian defence, Gr\"unfeld variation] d4 Nf6 c4 e6 Nf3 Bb4 N1d2 [ECO E11 Bogo-Indian defence, Nimzovich variation] d4 Nf6 c4 e6 Nf3 Bb4 Bd2 Qe7 [ECO E11 Bogo-Indian defence, Monticelli trap] d4 Nf6 c4 e6 Nf3 Bb4 Bd2 Bd2 Qd2 b6 g3 Bb7 Bg2 o-o Nc3 Ne4 Qc2 Nc3 Ng5 [ECO E11 Bogo-Indian defence] d4 Nf6 c4 e6 Nf3 Bb4 [ECO E10 D\"ory defence] d4 Nf6 c4 e6 Nf3 Ne4 [ECO E10 Dzindzikhashvili defence] d4 Nf6 c4 e6 Nf3 a6 [ECO E10 Blumenfeld counter-gambit, Spielmann variation] d4 Nf6 c4 e6 Nf3 c5 d5 b5 Bg5 ed cd h6 [ECO E10 Blumenfeld counter-gambit, Dus-Chotimursky variation] d4 Nf6 c4 e6 Nf3 c5 d5 b5 Bg5 [ECO E10 Blumenfeld counter-gambit accepted] d4 Nf6 c4 e6 Nf3 c5 d5 b5 de fe cb d5 [ECO E10 Blumenfeld counter-gambit] d4 Nf6 c4 e6 Nf3 c5 d5 b5 [ECO E10 Queen's pawn game] d4 Nf6 c4 e6 Nf3 [ECO E09 Catalan: closed, Sokolsky variation] d4 Nf6 c4 e6 g3 d5 Bg2 Be7 Nf3 o-o o-o N8d7 Qc2 c6 N1d2 b6 b3 a5 Bb2 Ba6 [ECO E09 Catalan: closed, main line] d4 Nf6 c4 e6 g3 d5 Bg2 Be7 Nf3 o-o o-o N8d7 Qc2 c6 N1d2 [ECO E08 Catalan: closed, Spassky gambit] d4 Nf6 c4 e6 g3 d5 Bg2 Be7 Nf3 o-o o-o N8d7 Qc2 c6 b3 b6 Rd1 Bb7 Nc3 b5 [ECO E08 Catalan: closed, Qc2 & b3] d4 Nf6 c4 e6 g3 d5 Bg2 Be7 Nf3 o-o o-o N8d7 Qc2 c6 b3 [ECO E08 Catalan: closed, Zagoryansky variation] d4 Nf6 c4 e6 g3 d5 Bg2 Be7 Nf3 o-o o-o N8d7 Qc2 c6 Rd1 b6 a4 [ECO E08 Catalan: closed, 7.Qc2] d4 Nf6 c4 e6 g3 d5 Bg2 Be7 Nf3 o-o o-o N8d7 Qc2 [ECO E07 Catalan: closed, Botvinnik variation] d4 Nf6 c4 e6 g3 d5 Bg2 Be7 Nf3 o-o o-o N8d7 Nc3 c6 Qd3 [ECO E07 Catalan: closed, 6...Nbd7] d4 Nf6 c4 e6 g3 d5 Bg2 Be7 Nf3 o-o o-o N8d7 [ECO E06 Catalan: closed, 5.Nf3] d4 Nf6 c4 e6 g3 d5 Bg2 Be7 Nf3 [ECO E05 Catalan: open, classical line] d4 Nf6 c4 e6 g3 d5 Bg2 dc Nf3 Be7 [ECO E04 Catalan: open, 5.Nf3] d4 Nf6 c4 e6 g3 d5 Bg2 dc Nf3 [ECO E03 Catalan: open, Alekhine variation] d4 Nf6 c4 e6 g3 d5 Bg2 dc Qa4 N8d7 Qc4 a6 Qc2 [ECO E03 Catalan: open, 5.Qa4 Nbd7, 6.Qxc4] d4 Nf6 c4 e6 g3 d5 Bg2 dc Qa4 N8d7 Qc4 [ECO E02 Catalan: open, 5.Qa4] d4 Nf6 c4 e6 g3 d5 Bg2 dc Qa4 [ECO E01 Catalan: closed] d4 Nf6 c4 e6 g3 d5 Bg2 [ECO E00 Catalan opening] d4 Nf6 c4 e6 g3 [ECO E00 Neo-Indian attack] d4 Nf6 c4 e6 Bg5 [ECO E00 Queen's pawn game] d4 Nf6 c4 e6 [ECO E99 King's Indian: orthodox, Aronin-Taimanov, Benk\"o attack] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 o-o Nc6 d5 Ne7 Ne1 Nd7 f3 f5 g4 [ECO E99 King's Indian: orthodox, Aronin-Taimanov, main line] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 o-o Nc6 d5 Ne7 Ne1 Nd7 f3 f5 [ECO E98 King's Indian: orthodox, Aronin-Taimanov, 9.Ne1] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 o-o Nc6 d5 Ne7 Ne1 [ECO E97 King's Indian: orthodox, Aronin-Taimanov, bayonet attack] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 o-o Nc6 d5 Ne7 b4 [ECO E97 King's Indian: orthodox, Aronin-Taimanov variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 o-o Nc6 [ECO E96 King's Indian: orthodox, 7...Nbd7, main line] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 o-o N8d7 Re1 c6 Bf1 a5 [ECO E95 King's Indian: orthodox, 7...Nbd7, 8.Re1] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 o-o N8d7 Re1 [ECO E94 King's Indian: orthodox, 7...Nbd7] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 o-o N8d7 [ECO E94 King's Indian: orthodox, Donner variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 o-o c6 [ECO E94 King's Indian: orthodox variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 o-o [ECO E93 King's Indian: Petrosian system, Keres variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 d5 N8d7 Bg5 h6 Bh4 g5 Bg3 Nh5 h4 [ECO E93 King's Indian: Petrosian system, main line] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 d5 N8d7 [ECO E92 King's Indian: Petrosian system, Stein variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 d5 a5 [ECO E92 King's Indian: Petrosian system] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 d5 [ECO E92 King's Indian: Gligori\'c-Taimanov system] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 Be3 [ECO E92 King's Indian: Andersson variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 de [ECO E92 King's Indian: classical variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 e5 [ECO E91 King's Indian: Kazakh variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 Na6 [ECO E91 King's Indian: 6.Be2] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be2 [ECO E90 King's Indian: Zinnowitz variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Bg5 [ECO E90 King's Indian: Larsen variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 o-o Be3 [ECO E90 King's Indian: 5.Nf3] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Nf3 [ECO E89 King's Indian: S\"amisch, orthodox main line] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f3 o-o Be3 e5 d5 c6 N1e2 cd [ECO E88 King's Indian: S\"amisch, orthodox, 7.d5 c6] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f3 o-o Be3 e5 d5 c6 [ECO E87 King's Indian: S\"amisch, orthodox, Bronstein variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f3 o-o Be3 e5 d5 Nh5 Qd2 Qh4 g3 Ng3 Qf2 Nf1 Qh4 Ne3 Ke2 Nc4 [ECO E87 King's Indian: S\"amisch, orthodox, 7.d5] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f3 o-o Be3 e5 d5 [ECO E86 King's Indian: S\"amisch, orthodox, 7.Nge2 c6] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f3 o-o Be3 e5 N1e2 c6 [ECO E85 King's Indian: S\"amisch, orthodox variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f3 o-o Be3 e5 [ECO E84 King's Indian: S\"amisch, Panno main line] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f3 o-o Be3 Nc6 N1e2 a6 Qd2 Rb8 [ECO E83 King's Indian: S\"amisch, Panno formation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f3 o-o Be3 Nc6 N1e2 a6 [ECO E83 King's Indian: S\"amisch, Ruban variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f3 o-o Be3 Nc6 N1e2 Rb8 [ECO E83 King's Indian: S\"amisch, 6...Nc6] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f3 o-o Be3 Nc6 [ECO E82 King's Indian: S\"amisch, double fianchetto variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f3 o-o Be3 b6 [ECO E81 King's Indian: S\"amisch, Byrne variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f3 o-o Be3 c6 Bd3 a6 [ECO E81 King's Indian: S\"amisch, 5...O-O] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f3 o-o [ECO E80 King's Indian: S\"amisch variation] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f3 [ECO E79 King's Indian: Four pawns attack, main line] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f4 o-o Be2 c5 Nf3 cd Nd4 Nc6 Be3 [ECO E78 King's Indian: Four pawns attack, with Be2 and Nf3] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f4 o-o Be2 c5 Nf3 [ECO E77 King's Indian: Four pawns attack, Florentine gambit] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f4 o-o Be2 c5 d5 e6 Nf3 ed e5 [ECO E77 King's Indian: Four pawns attack] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f4 o-o Be2 c5 d5 e6 Nf3 [ECO E77 King's Indian: Six pawns attack] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f4 o-o Be2 c5 d5 e6 de fe g4 Nc6 h4 [ECO E77 King's Indian: Four pawns attack, 6.Be2] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f4 o-o Be2 [ECO E76 King's Indian: Four pawns attack, dynamic line] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f4 o-o Nf3 c5 d5 [ECO E76 King's Indian: Four pawns attack] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 f4 [ECO E75 King's Indian: Averbakh, main line] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Be2 o-o Bg5 c5 d5 e6 [ECO E74 King's Indian: Averbakh, 6...c5] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Be2 o-o Bg5 c5 [ECO E73 King's Indian: Averbakh system] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Be2 o-o Bg5 [ECO E73 King's Indian: Semi-Averbakh system] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Be2 o-o Be3 [ECO E73 King's Indian: 5.Be2] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Be2 [ECO E72 King's Indian: Pomar system] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 g3 o-o Bg2 e5 N1e2 [ECO E72 King's Indian with e4 & g3] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 g3 [ECO E71 King's Indian: Makagonov system ] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 h3 [ECO E70 King's Indian: accelerated Averbakh system] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 Bg5 [ECO E70 King's Indian: Kramer system] d4 Nf6 c4 g6 Nc3 Bg7 e4 d6 N1e2 [ECO E70 King's Indian: 4.e4] d4 Nf6 c4 g6 Nc3 Bg7 e4 [ECO E69 King's Indian: fianchetto, classical main line] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 g3 o-o Bg2 N8d7 o-o e5 e4 c6 h3 [ECO E68 King's Indian: fianchetto, classical variation, 8.e4] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 g3 o-o Bg2 N8d7 o-o e5 e4 [ECO E67 King's Indian: fianchetto, classical variation] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 g3 o-o Bg2 N8d7 o-o e5 [ECO E67 King's Indian: fianchetto with ...Nd7] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 g3 o-o Bg2 N8d7 [ECO E66 King's Indian: fianchetto, Yugoslav Panno] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 g3 o-o Bg2 c5 o-o Nc6 d5 [ECO E65 King's Indian: fianchetto, Yugoslav, 7.O-O] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 g3 o-o Bg2 c5 o-o [ECO E64 King's Indian: fianchetto, Yugoslav system] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 g3 o-o Bg2 c5 [ECO E63 King's Indian: fianchetto, Panno variation] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 g3 o-o Bg2 Nc6 o-o a6 [ECO E62 King's Indian: fianchetto, Simagin variation] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 g3 o-o Bg2 Nc6 o-o Bg4 [ECO E62 King's Indian: fianchetto, lesser Simagin variation] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 g3 o-o Bg2 Nc6 o-o Bf5 [ECO E62 King's Indian: fianchetto, Uhlmann variation] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 g3 o-o Bg2 Nc6 o-o e5 [ECO E62 King's Indian: fianchetto with ...Nc6] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 g3 o-o Bg2 Nc6 [ECO E62 King's Indian: fianchetto, Kavalek variation] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 g3 o-o Bg2 c6 o-o Qa5 [ECO E62 King's Indian: fianchetto, Larsen system] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 g3 o-o Bg2 c6 o-o Bf5 [ECO E62 King's Indian: fianchetto variation] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 g3 [ECO E61 King's Indian: Smyslov system] d4 Nf6 c4 g6 Nc3 Bg7 Nf3 d6 Bg5 [ECO E61 King's Indian defence, 3.Nc3] d4 Nf6 c4 g6 Nc3 [ECO D99 Gr\"unfeld defence: Smyslov, Yugoslav variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 Qb3 dc Qc4 o-o e4 Bg4 Be3 N6d7 Qb3 c5 [ECO D99 Gr\"unfeld defence: Smyslov, main line] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 Qb3 dc Qc4 o-o e4 Bg4 Be3 N6d7 Qb3 [ECO D98 Gr\"unfeld: Russian, Keres variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 Qb3 dc Qc4 o-o e4 Bg4 Be3 N6d7 Be2 Nb6 Qd3 Nc6 o-o-o [ECO D98 Gr\"unfeld: Russian, Smyslov variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 Qb3 dc Qc4 o-o e4 Bg4 [ECO D97 Gr\"unfeld: Russian, Prins variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 Qb3 dc Qc4 o-o e4 Na6 [ECO D97 Gr\"unfeld: Russian, Byrne variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 Qb3 dc Qc4 o-o e4 Nc6 [ECO D97 Gr\"unfeld: Russian, Levenfish variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 Qb3 dc Qc4 o-o e4 b6 [ECO D97 Gr\"unfeld: Russian, Szabo variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 Qb3 dc Qc4 o-o e4 c6 [ECO D97 Gr\"unfeld: Russian, Alekhine variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 Qb3 dc Qc4 o-o e4 a6 [ECO D97 Gr\"unfeld: Russian variation with e4] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 Qb3 dc Qc4 o-o e4 [ECO D96 Gr\"unfeld: Russian variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 Qb3 [ECO D95 Gr\"unfeld: Botvinnik variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 e3 o-o Qb3 e6 [ECO D95 Gr\"unfeld: Pachman variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 e3 o-o Qb3 dc Bc4 N8d7 Ng5 [ECO D95 Gr\"unfeld with e3 & Qb3] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 e3 o-o Qb3 [ECO D94 Gr\"unfeld: Flohr defence] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 e3 o-o Bd3 c6 o-o Bf5 [ECO D94 Gr\"unfeld: Smyslov defence] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 e3 o-o Bd3 c6 o-o Bg4 [ECO D94 Gr\"unfeld with e3 & Bd3] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 e3 o-o Bd3 [ECO D94 Gr\"unfeld: Opo\v censky variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 e3 o-o Bd2 [ECO D94 Gr\"unfeld: Makogonov variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 e3 o-o b4 [ECO D94 Gr\"unfeld: 5.e3] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 e3 [ECO D93 Gr\"unfeld with Bf4 & e3] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 Bf4 o-o e3 [ECO D92 Gr\"unfeld: 5.Bf4] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 Bf4 [ECO D91 Gr\"unfeld: 5.Bg5] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 Bg5 [ECO D90 Gr\"unfeld: Flohr variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 Qa4 [ECO D90 Gr\"unfeld: Three knights variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 Bg7 [ECO D90 Gr\"unfeld: Schlechter variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 c6 [ECO D90 Gr\"unfeld: Three knights variation] d4 Nf6 c4 g6 Nc3 d5 Nf3 [ECO D89 Gr\"unfeld: exchange, Sokolsky variation] d4 Nf6 c4 g6 Nc3 d5 cd Nd5 e4 Nc3 bc Bg7 Bc4 o-o Ne2 c5 o-o Nc6 Be3 cd cd Bg4 f3 Na5 Bd3 Be6 d5 [ECO D89 Gr\"unfeld: Spassky variation, main line, 13.Bd3] d4 Nf6 c4 g6 Nc3 d5 cd Nd5 e4 Nc3 bc Bg7 Bc4 o-o Ne2 c5 o-o Nc6 Be3 cd cd Bg4 f3 Na5 Bd3 Be6 [ECO D88 Gr\"unfeld: Spassky variation, main line, 10...cd, 11.cd] d4 Nf6 c4 g6 Nc3 d5 cd Nd5 e4 Nc3 bc Bg7 Bc4 o-o Ne2 c5 o-o Nc6 Be3 cd cd [ECO D87 Gr\"unfeld: exchange, Seville variation] d4 Nf6 c4 g6 Nc3 d5 cd Nd5 e4 Nc3 bc Bg7 Bc4 o-o Ne2 c5 o-o Nc6 Be3 Bg4 f3 Na5 Bf7 [ECO D87 Gr\"unfeld: exchange, Spassky variation] d4 Nf6 c4 g6 Nc3 d5 cd Nd5 e4 Nc3 bc Bg7 Bc4 o-o Ne2 c5 [ECO D86 Gr\"unfeld: exchange, Simagin's improved variation] d4 Nf6 c4 g6 Nc3 d5 cd Nd5 e4 Nc3 bc Bg7 Bc4 o-o Ne2 Nc6 [ECO D86 Gr\"unfeld: exchange, Simagin's lesser variation] d4 Nf6 c4 g6 Nc3 d5 cd Nd5 e4 Nc3 bc Bg7 Bc4 o-o Ne2 b6 [ECO D86 Gr\"unfeld: exchange, Larsen variation] d4 Nf6 c4 g6 Nc3 d5 cd Nd5 e4 Nc3 bc Bg7 Bc4 o-o Ne2 Qd7 o-o b6 [ECO D86 Gr\"unfeld: exchange, classical variation] d4 Nf6 c4 g6 Nc3 d5 cd Nd5 e4 Nc3 bc Bg7 Bc4 [ECO D85 Gr\"unfeld: modern exchange variation] d4 Nf6 c4 g6 Nc3 d5 cd Nd5 e4 Nc3 bc Bg7 Nf3 [ECO D85 Gr\"unfeld: exchange variation] d4 Nf6 c4 g6 Nc3 d5 cd Nd5 [ECO D84 Gr\"unfeld: Gr\"unfeld gambit accepted] d4 Nf6 c4 g6 Nc3 d5 Bf4 Bg7 e3 o-o cd Nd5 Nd5 Qd5 Bc7 [ECO D83 Gr\"unfeld: Gr\"unfeld gambit, Botvinnik variation] d4 Nf6 c4 g6 Nc3 d5 Bf4 Bg7 e3 o-o Rc1 c5 dc Be6 [ECO D83 Gr\"unfeld: Gr\"unfeld gambit, Capablanca variation] d4 Nf6 c4 g6 Nc3 d5 Bf4 Bg7 e3 o-o Rc1 [ECO D83 Gr\"unfeld: Gr\"unfeld gambit] d4 Nf6 c4 g6 Nc3 d5 Bf4 Bg7 e3 o-o [ECO D82 Gr\"unfeld: 4.Bf4] d4 Nf6 c4 g6 Nc3 d5 Bf4 [ECO D81 Gr\"unfeld: Russian variation] d4 Nf6 c4 g6 Nc3 d5 Qb3 [ECO D80 Gr\"unfeld: Lundin variation] d4 Nf6 c4 g6 Nc3 d5 Bg5 Ne4 Ne4 de Qd2 c5 [ECO D80 Gr\"unfeld: Stockholm variation] d4 Nf6 c4 g6 Nc3 d5 Bg5 [ECO D80 Gr\"unfeld: Spike gambit] d4 Nf6 c4 g6 Nc3 d5 g4 [ECO D80 Gr\"unfeld defence] d4 Nf6 c4 g6 Nc3 d5 [ECO D79 Neo-Gr\"unfeld, 6.O-O, main line] d4 Nf6 c4 g6 g3 d5 Bg2 Bg7 Nf3 o-o o-o c6 cd cd [ECO D78 Neo-Gr\"unfeld, 6.O-O c6] d4 Nf6 c4 g6 g3 d5 Bg2 Bg7 Nf3 o-o o-o c6 [ECO D77 Neo-Gr\"unfeld, 6.O-O] d4 Nf6 c4 g6 g3 d5 Bg2 Bg7 Nf3 o-o o-o [ECO D76 Neo-Gr\"unfeld, 6.cd Nxd5, 7.O-O Nb6] d4 Nf6 c4 g6 g3 d5 Bg2 Bg7 Nf3 o-o cd Nd5 o-o Nb6 [ECO D75 Neo-Gr\"unfeld, 6.cd Nxd5, 7.O-O c5, 8.Nc3] d4 Nf6 c4 g6 g3 d5 Bg2 Bg7 Nf3 o-o cd Nd5 o-o c5 Nc3 [ECO D75 Neo-Gr\"unfeld, 6.cd Nxd5, 7.O-O c5, 8.dc] d4 Nf6 c4 g6 g3 d5 Bg2 Bg7 Nf3 o-o cd Nd5 o-o c5 dc [ECO D74 Neo-Gr\"unfeld, 6.cd Nxd5, 7.O-O] d4 Nf6 c4 g6 g3 d5 Bg2 Bg7 Nf3 o-o cd Nd5 o-o [ECO D73 Neo-Gr\"unfeld, 5.Nf3] d4 Nf6 c4 g6 g3 d5 Bg2 Bg7 Nf3 [ECO D72 Neo-Gr\"unfeld, 5.cd, main line] d4 Nf6 c4 g6 g3 d5 Bg2 Bg7 cd Nd5 e4 Nb6 Ne2 [ECO D71 Neo-Gr\"unfeld, 5.cd] d4 Nf6 c4 g6 g3 d5 Bg2 Bg7 cd Nd5 [ECO D70 Neo-Gr\"unfeld defence] d4 Nf6 c4 g6 g3 d5 [ECO E60 King's Indian: 3.g3, counterthrust variation] d4 Nf6 c4 g6 g3 Bg7 Bg2 d5 [ECO E60 King's Indian: 3.g3] d4 Nf6 c4 g6 g3 [ECO D70 Neo-Gr\"unfeld defence] d4 Nf6 c4 g6 Nf3 d5 [ECO E60 King's Indian, 3.Nf3] d4 Nf6 c4 g6 Nf3 [ECO E60 Queen's pawn: Mengarini attack] d4 Nf6 c4 g6 Qc2 [ECO E60 King's Indian: Danube gambit] d4 Nf6 c4 g6 d5 b5 [ECO E60 King's Indian: Anti-Gr\"unfeld] d4 Nf6 c4 g6 d5 [ECO D70 Neo-Gr\"unfeld defence] d4 Nf6 c4 g6 f3 d5 [ECO E60 King's Indian defence] d4 Nf6 c4 g6 [ECO A79 Benoni: classical, 11.f3] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 Nf3 Bg7 Be2 o-o o-o Re8 Nd2 Na6 f3 [ECO A78 Benoni: classical with ...Re8 and ...Na6] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 Nf3 Bg7 Be2 o-o o-o Re8 Nd2 Na6 [ECO A77 Benoni: classical, 9...Re8, 10.Nd2] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 Nf3 Bg7 Be2 o-o o-o Re8 Nd2 [ECO A76 Benoni: classical, 9...Re8] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 Nf3 Bg7 Be2 o-o o-o Re8 [ECO A75 Benoni: classical with ...a6 and 10...Bg4] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 Nf3 Bg7 Be2 o-o o-o a6 a4 Bg4 [ECO A74 Benoni: classical, 9...a6, 10.a4] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 Nf3 Bg7 Be2 o-o o-o a6 a4 [ECO A73 Benoni: classical, 9.O-O] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 Nf3 Bg7 Be2 o-o o-o [ECO A72 Benoni: classical without 9.O-O] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 Nf3 Bg7 Be2 o-o [ECO A70 Benoni: classical without 9.O-O] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 Nf3 Bg7 Be2 [ECO A71 Benoni: classical, 8.Bg5] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 Nf3 Bg7 Bg5 [ECO A70 Benoni: classical with e4 and Nf3] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 Nf3 [ECO A67 Benoni: Taimanov variation] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 f4 Bg7 Bb5 [ECO A66 Benoni: Mikenas variation] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 f4 Bg7 e5 [ECO A69 Benoni: four pawns attack, main line] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 f4 Bg7 Nf3 o-o Be2 Re8 [ECO A68 Benoni: four pawns attack] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 f4 Bg7 Nf3 o-o [ECO A66 Benoni: pawn storm variation] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 g6 f4 [ECO A65 Benoni: 6.e4] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 e4 [ECO A64 Benoni: fianchetto, 11...Re8] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 Nf3 g6 g3 Bg7 Bg2 o-o o-o N8d7 Nd2 a6 a4 Re8 [ECO A63 Benoni: fianchetto, 9...Nbd7] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 Nf3 g6 g3 Bg7 Bg2 o-o o-o N8d7 [ECO A62 Benoni: fianchetto variation] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 Nf3 g6 g3 Bg7 Bg2 o-o [ECO A61 Benoni: fianchetto variation] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 Nf3 g6 g3 [ECO A61 Benoni: Nimzovich variation] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 Nf3 g6 Nd2 [ECO A61 Benoni: Uhlmann variation] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 Nf3 g6 Bg5 [ECO A61 Benoni defence] d4 Nf6 c4 c5 d5 e6 Nc3 ed cd d6 Nf3 g6 [ECO A60 Benoni defence] d4 Nf6 c4 c5 d5 e6 [ECO A59 Benk\"o gambit: main line] d4 Nf6 c4 c5 d5 b5 cb a6 ba Ba6 Nc3 d6 e4 Bf1 Kf1 g6 g3 Bg7 Kg2 o-o Nf3 [ECO A59 Benk\"o gambit] d4 Nf6 c4 c5 d5 b5 cb a6 ba Ba6 Nc3 d6 e4 Bf1 Kf1 g6 g3 [ECO A59 Benk\"o gambit: Ne2 variation] d4 Nf6 c4 c5 d5 b5 cb a6 ba Ba6 Nc3 d6 e4 Bf1 Kf1 g6 N1e2 [ECO A59 Benk\"o gambit: 7.e4] d4 Nf6 c4 c5 d5 b5 cb a6 ba Ba6 Nc3 d6 e4 [ECO A58 Benk\"o gambit: fianchetto variation] d4 Nf6 c4 c5 d5 b5 cb a6 ba Ba6 Nc3 d6 Nf3 g6 g3 [ECO A58 Benk\"o gambit: Nd2 variation] d4 Nf6 c4 c5 d5 b5 cb a6 ba Ba6 Nc3 d6 Nf3 g6 Nd2 [ECO A58 Benk\"o gambit accepted] d4 Nf6 c4 c5 d5 b5 cb a6 ba [ECO A57 Benk\"o gambit: Nescaf\'e Frapp\'e attack] d4 Nf6 c4 c5 d5 b5 cb a6 Nc3 ab e4 b4 Nb5 d6 Bc4 [ECO A57 Benk\"o gambit: Zaitsev system] d4 Nf6 c4 c5 d5 b5 cb a6 Nc3 [ECO A57 Benk\"o gambit half accepted] d4 Nf6 c4 c5 d5 b5 cb a6 [ECO A57 Benk\"o gambit] d4 Nf6 c4 c5 d5 b5 [ECO A56 Czech Benoni: King's Indian system] d4 Nf6 c4 c5 d5 e5 Nc3 d6 e4 g6 [ECO A56 Czech Benoni defence] d4 Nf6 c4 c5 d5 e5 [ECO A56 Vulture defence] d4 Nf6 c4 c5 d5 Ne4 [ECO A56 Benoni defence, Hromodka system] d4 Nf6 c4 c5 d5 d6 [ECO A56 Benoni defence] d4 Nf6 c4 c5 [ECO A55 Old Indian: main line] d4 Nf6 c4 d6 Nc3 e5 Nf3 N8d7 e4 [ECO A54 Old Indian: Ukrainian variation, 4.Nf3] d4 Nf6 c4 d6 Nc3 e5 Nf3 [ECO A54 Old Indian: Dus-Khotimirsky variation] d4 Nf6 c4 d6 Nc3 e5 e3 N8d7 Bd3 [ECO A54 Old Indian: Ukrainian variation] d4 Nf6 c4 d6 Nc3 e5 [ECO A53 Old Indian: Janowski variation] d4 Nf6 c4 d6 Nc3 Bf5 [ECO A53 Old Indian defence] d4 Nf6 c4 d6 [ECO A52 Budapest: Alekhine variation, Balogh gambit] d4 Nf6 c4 e5 de Ng4 e4 d6 [ECO A52 Budapest: Alekhine, Abonyi variation] d4 Nf6 c4 e5 de Ng4 e4 Ne5 f4 N5c6 [ECO A52 Budapest: Alekhine variation] d4 Nf6 c4 e5 de Ng4 e4 [ECO A52 Budapest: Rubinstein variation] d4 Nf6 c4 e5 de Ng4 Bf4 [ECO A52 Budapest: Adler variation] d4 Nf6 c4 e5 de Ng4 Nf3 [ECO A52 Budapest defence] d4 Nf6 c4 e5 de Ng4 [ECO A51 Budapest: Fajarowicz, Steiner variation] d4 Nf6 c4 e5 de Ne4 Qc2 [ECO A51 Budapest: Fajarowicz variation] d4 Nf6 c4 e5 de Ne4 [ECO A51 Budapest defence declined] d4 Nf6 c4 e5 [ECO A50 Queen's Indian accelerated] d4 Nf6 c4 b6 [ECO A?? Kevitz-Trajkovich defence] d4 Nf6 c4 Nc6 [ECO A?? Queen's pawn game] d4 Nf6 c4 [ECO A49 King's Indian: fianchetto without c4] d4 Nf6 Nf3 g6 g3 [ECO A48 King's Indian: London system] d4 Nf6 Nf3 g6 Bf4 [ECO A48 King's Indian: Torre attack] d4 Nf6 Nf3 g6 Bg5 [ECO A48 King's Indian: East Indian defence] d4 Nf6 Nf3 g6 [ECO A47 Queen's Indian: Marienbad system, Berg variation] d4 Nf6 Nf3 b6 g3 Bb7 Bg2 c5 c4 cd Qd4 [ECO A47 Queen's Indian: Marienbad system] d4 Nf6 Nf3 b6 g3 Bb7 Bg2 c5 [ECO A47 Queen's Indian defence] d4 Nf6 Nf3 b6 [ECO A46 D\"ory defence] d4 Nf6 Nf3 Ne4 [ECO A46 Queen's pawn: Yusupov-Rubinstein system] d4 Nf6 Nf3 e6 e3 [ECO A46 Queen's pawn: Torre attack, Wagner gambit] d4 Nf6 Nf3 e6 Bg5 c5 e4 [ECO A46 Queen's pawn: Torre attack] d4 Nf6 Nf3 e6 Bg5 [ECO A46 Queen's pawn game] d4 Nf6 Nf3 [ECO A45 Trompovsky attack ] d4 Nf6 Bg5 [ECO A45 Gedult attack] d4 Nf6 f3 d5 g4 [ECO A45 Blackmar-Diemer gambit] d4 Nf6 f3 d5 e4 [ECO A45 Paleface attack] d4 Nf6 f3 [ECO A45 Canard opening] d4 Nf6 f4 [ECO A45 Queen's pawn: Bronstein gambit] d4 Nf6 g4 [ECO A45 Queen's pawn game] d4 Nf6 [ECO A99 Dutch: Ilyin-Genevsky variation with b3] d4 f5 c4 Nf6 g3 e6 Bg2 Be7 Nf3 o-o o-o d6 Nc3 Qe8 b3 [ECO A98 Dutch: Ilyin-Genevsky variation with Qc2] d4 f5 c4 Nf6 g3 e6 Bg2 Be7 Nf3 o-o o-o d6 Nc3 Qe8 Qc2 [ECO A97 Dutch: Ilyin-Genevsky, Winter variation] d4 f5 c4 Nf6 g3 e6 Bg2 Be7 Nf3 o-o o-o d6 Nc3 Qe8 Re1 [ECO A97 Dutch: Ilyin-Genevsky variation] d4 f5 c4 Nf6 g3 e6 Bg2 Be7 Nf3 o-o o-o d6 Nc3 Qe8 [ECO A96 Dutch: classical variation] d4 f5 c4 Nf6 g3 e6 Bg2 Be7 Nf3 o-o o-o d6 [ECO A95 Dutch: stonewall: Chekhover variation] d4 f5 c4 Nf6 g3 e6 Bg2 Be7 Nf3 o-o o-o d5 Nc3 c6 Qc2 Qe8 Bg5 [ECO A95 Dutch: stonewall with Nc3] d4 f5 c4 Nf6 g3 e6 Bg2 Be7 Nf3 o-o o-o d5 Nc3 c6 [ECO A92 Dutch: stonewall with Nc3] d4 f5 c4 Nf6 g3 e6 Bg2 Be7 Nf3 o-o o-o d5 Nc3 [ECO A94 Dutch: stonewall with Ba3] d4 f5 c4 Nf6 g3 e6 Bg2 Be7 Nf3 o-o o-o d5 b3 c6 Ba3 [ECO A93 Dutch: stonewall, Botwinnik variation] d4 f5 c4 Nf6 g3 e6 Bg2 Be7 Nf3 o-o o-o d5 b3 [ECO A92 Dutch: stonewall variation] d4 f5 c4 Nf6 g3 e6 Bg2 Be7 Nf3 o-o o-o d5 [ECO A92 Dutch defence, Alekhine variation] d4 f5 c4 Nf6 g3 e6 Bg2 Be7 Nf3 o-o o-o Ne4 [ECO A92 Dutch defence] d4 f5 c4 Nf6 g3 e6 Bg2 Be7 Nf3 o-o [ECO A91 Dutch defence] d4 f5 c4 Nf6 g3 e6 Bg2 Be7 [ECO A90 Dutch-Indian, Alekhine variation] d4 f5 c4 Nf6 g3 e6 Bg2 Bb4 Bd2 Be7 [ECO A90 Dutch defence: Dutch-Indian variation] d4 f5 c4 Nf6 g3 e6 Bg2 Bb4 [ECO A90 Dutch defence] d4 f5 c4 Nf6 g3 e6 Bg2 [ECO A89 Dutch: Leningrad, main variation with Nc6] d4 f5 c4 Nf6 g3 g6 Bg2 Bg7 Nf3 o-o o-o d6 Nc3 Nc6 [ECO A88 Dutch: Leningrad, main variation with c6] d4 f5 c4 Nf6 g3 g6 Bg2 Bg7 Nf3 o-o o-o d6 Nc3 c6 [ECO A87 Dutch: Leningrad, main variation] d4 f5 c4 Nf6 g3 g6 Bg2 Bg7 Nf3 [ECO A86 Dutch: Leningrad variation] d4 f5 c4 Nf6 g3 g6 [ECO A86 Dutch: Hort-Antoshin system] d4 f5 c4 Nf6 g3 d6 Bg2 c6 Nc3 Qc7 [ECO A86 Dutch with c4 & g3] d4 f5 c4 Nf6 g3 [ECO A85 Dutch with c4 & Nc3] d4 f5 c4 Nf6 Nc3 [ECO A84 Dutch defence] d4 f5 c4 Nf6 [ECO A84 Dutch: Staunton gambit deferred] d4 f5 c4 e6 e4 [ECO A84 Dutch defence, Rubinstein variation] d4 f5 c4 e6 Nc3 [ECO A84 Dutch defence] d4 f5 c4 e6 [ECO A84 Dutch defence: Bladel variation] d4 f5 c4 g6 Nc3 Nh6 [ECO A84 Dutch defence] d4 f5 c4 [ECO A83 Dutch: Staunton gambit, Nimzovich variation] d4 f5 e4 fe Nc3 Nf6 Bg5 b6 [ECO A83 Dutch: Staunton gambit, Chigorin variation] d4 f5 e4 fe Nc3 Nf6 Bg5 c6 [ECO A83 Dutch: Staunton gambit, Lasker variation] d4 f5 e4 fe Nc3 Nf6 Bg5 g6 f3 [ECO A83 Dutch: Staunton gambit, Alekhine variation] d4 f5 e4 fe Nc3 Nf6 Bg5 g6 h4 [ECO A83 Dutch: Staunton gambit, Staunton's line] d4 f5 e4 fe Nc3 Nf6 Bg5 [ECO A82 Dutch: Staunton gambit, Tartakower variation] d4 f5 e4 fe Nc3 Nf6 g4 [ECO A82 Dutch: Staunton gambit] d4 f5 e4 fe [ECO A82 Dutch: Balogh defence] d4 f5 e4 d6 [ECO A82 Dutch: Staunton gambit] d4 f5 e4 [ECO A81 Dutch: Leningrad, Karlsbad variation] d4 f5 g3 g6 Bg2 Bg7 Nh3 [ECO A81 Dutch: Leningrad, Basman system] d4 f5 g3 g6 Bg2 Bg7 Nf3 c6 o-o Nh6 [ECO A81 Dutch defence] d4 f5 g3 Nf6 Bg2 g6 [ECO A81 Dutch defence, Blackburne variation] d4 f5 g3 Nf6 Bg2 e6 Nh3 [ECO A81 Dutch defence] d4 f5 g3 [ECO A80 Dutch, 2.Bg5 variation] d4 f5 Bg5 [ECO A80 Dutch, Krejcik gambit] d4 f5 g4 [ECO A80 Dutch, Korchnoi attack] d4 f5 h3 [ECO A80 Dutch, Von Pretzel gambit] d4 f5 Qd3 e6 g4 [ECO A80 Dutch, Manhattan variation] d4 f5 Qd3 [ECO A80 Dutch, Spielmann gambit] d4 f5 Nc3 Nf6 g4 [ECO A80 Dutch] d4 f5 [ECO A44 Semi-Benoni ] d4 c5 d5 e5 e4 d6 [ECO A44 Old Benoni defence] d4 c5 d5 e5 [ECO A43 Old Benoni: Schmid's system] d4 c5 d5 d6 Nc3 g6 [ECO A43 Old Benoni defence] d4 c5 d5 d6 [ECO A43 Hawk defence] d4 c5 d5 Nf6 Nf3 c4 [ECO A43 Old Benoni defence] d4 c5 d5 Nf6 Nf3 [ECO A43 Woozle defence] d4 c5 d5 Nf6 Nc3 Qa5 [ECO A43 Old Benoni defence] d4 c5 d5 Nf6 [ECO A43 Old Benoni: Mujannah formation] d4 c5 d5 f5 [ECO A43 Old Benoni: Franco-Benoni defence] d4 c5 d5 e6 e4 [ECO A43 Old Benoni defence] d4 c5 [ECO A42 Modern defence: Averbakh system, Kotov variation] d4 d6 c4 g6 Nc3 Bg7 e4 Nc6 [ECO A42 Modern defence: Averbakh system, Randspringer variation] d4 d6 c4 g6 Nc3 Bg7 e4 f5 [ECO A42 Pterodactyl defence] d4 d6 c4 g6 Nc3 Bg7 e4 c5 Nf3 Qa5 [ECO A42 Modern defence: Averbakh system] d4 d6 c4 g6 Nc3 Bg7 e4 [ECO A41 Modern defence] d4 d6 c4 g6 Nc3 Bg7 [ECO A41 Old Indian defence] d4 d6 c4 [ECO A41 Old Indian: Tartakower variation] d4 d6 Nf3 Bg4 [ECO A41 Queen's Pawn] d4 d6 [ECO A40 Beefeater defence] d4 g6 c4 Bg7 Nc3 c5 d5 Bc3 bc f5 [ECO A40 Modern defence] d4 g6 [ECO A40 Queen's pawn: Franco-Indian defence] d4 e6 c4 Bb4 [ECO A40 Queen's pawn: Keres defence] d4 e6 c4 b6 [ECO A40 Queen's pawn] d4 e6 [ECO A40 Polish defence] d4 b5 [ECO A40 Queen's pawn: English defence] d4 b6 [ECO A40 Queen's pawn: Englund gambit] d4 e5 de Nc6 Nf3 Qe7 Qd5 f6 ef Nf6 [ECO A40 Queen's pawn: Charlick gambit] d4 e5 [ECO A40 Queen's pawn: Lundin defence] d4 Nc6 [ECO A40 Queen's pawn] d4 [ECO A39 English: symmetrical, main line with d4] c4 c5 Nc3 Nc6 g3 g6 Bg2 Bg7 Nf3 Nf6 o-o o-o d4 [ECO A38 English: symmetrical, main line with d3] c4 c5 Nc3 Nc6 g3 g6 Bg2 Bg7 Nf3 Nf6 o-o o-o d3 [ECO A38 English: symmetrical, main line with b3] c4 c5 Nc3 Nc6 g3 g6 Bg2 Bg7 Nf3 Nf6 o-o o-o b3 [ECO A38 English: symmetrical variation] c4 c5 Nc3 Nc6 g3 g6 Bg2 Bg7 Nf3 Nf6 [ECO A37 English: symmetrical, Botvinnik system reversed] c4 c5 Nc3 Nc6 g3 g6 Bg2 Bg7 Nf3 e5 [ECO A37 English: symmetrical variation] c4 c5 Nc3 Nc6 g3 g6 Bg2 Bg7 Nf3 [ECO A36 English: symmetrical, Botvinnik system] c4 c5 Nc3 Nc6 g3 g6 Bg2 Bg7 e4 [ECO A36 English: symmetrical, Botvinnik system reversed] c4 c5 Nc3 Nc6 g3 g6 Bg2 Bg7 e3 e5 [ECO A36 English: ultra-symmetrical variation] c4 c5 Nc3 Nc6 g3 g6 Bg2 Bg7 [ECO A36 English: symmetrical variation] c4 c5 Nc3 Nc6 g3 [ECO A35 English: symmetrical, four knights system] c4 c5 Nc3 Nc6 Nf3 Nf6 [ECO A35 English: symmetrical variation] c4 c5 Nc3 Nc6 [ECO A34 English: symmetrical, Rubinstein system] c4 c5 Nc3 Nf6 g3 d5 cd Nd5 Bg2 Nc7 [ECO A34 English: symmetrical variation] c4 c5 Nc3 Nf6 g3 [ECO A34 English: symmetrical, three knights system] c4 c5 Nc3 Nf6 Nf3 d5 cd Nd5 [ECO A34 English: symmetrical variation] c4 c5 Nc3 [ECO A33 English: symmetrical, Geller variation] c4 c5 Nf3 Nf6 d4 cd Nd4 e6 Nc3 Nc6 g3 Qb6 [ECO A33 English: symmetrical variation] c4 c5 Nf3 Nf6 d4 cd Nd4 e6 Nc3 Nc6 [ECO A32 English: symmetrical variation] c4 c5 Nf3 Nf6 d4 cd Nd4 e6 [ECO A31 English: symmetrical, Benoni formation] c4 c5 Nf3 Nf6 d4 [ECO A30 English: symmetrical, hedgehog, flexible formation] c4 c5 Nf3 Nf6 g3 b6 Bg2 Bb7 o-o e6 Nc3 Be7 d4 cd Qd4 d6 Rd1 a6 b3 N8d7 [ECO A30 English: symmetrical, hedgehog system] c4 c5 Nf3 Nf6 g3 b6 Bg2 Bb7 o-o e6 Nc3 Be7 [ECO A30 English: symmetrical variation] c4 c5 [ECO A29 English: four knights, kingside fianchetto] c4 e5 Nc3 Nc6 Nf3 Nf6 g3 [ECO A28 English: four knights, Romanishin variation] c4 e5 Nc3 Nc6 Nf3 Nf6 e3 Bb4 Qc2 Bc3 [ECO A28 English: four knights, Stean variation] c4 e5 Nc3 Nc6 Nf3 Nf6 e3 Bb4 Qc2 o-o Nd5 Re8 Qf5 [ECO A28 English: four knights, 4.e3] c4 e5 Nc3 Nc6 Nf3 Nf6 e3 [ECO A28 English: four knights, Capablanca variation] c4 e5 Nc3 Nc6 Nf3 Nf6 d3 [ECO A28 English: four knights, Marini variation] c4 e5 Nc3 Nc6 Nf3 Nf6 a3 [ECO A28 English: four knights, Nimzovich variation] c4 e5 Nc3 Nc6 Nf3 Nf6 e4 [ECO A28 English: Bradley Beach variation] c4 e5 Nc3 Nc6 Nf3 Nf6 d4 e4 [ECO A28 English: Nenarokov variation] c4 e5 Nc3 Nc6 Nf3 Nf6 d4 ed Nd4 Bb4 Bg5 h6 Bh4 Bc3 bc Ne5 [ECO A28 English: four knights system] c4 e5 Nc3 Nc6 Nf3 Nf6 [ECO A27 English: three knights system] c4 e5 Nc3 Nc6 Nf3 [ECO A26 English: Botvinnik system] c4 e5 Nc3 Nc6 g3 g6 Bg2 Bg7 d3 d6 e4 [ECO A26 English: closed system] c4 e5 Nc3 Nc6 g3 g6 Bg2 Bg7 d3 d6 [ECO A25 English: closed system ] c4 e5 Nc3 Nc6 g3 g6 Bg2 Bg7 d3 [ECO A25 English: closed, 5.Rb1 Taimanov variation] c4 e5 Nc3 Nc6 g3 g6 Bg2 Bg7 Rb1 Nh6 [ECO A25 English: closed, 5.Rb1] c4 e5 Nc3 Nc6 g3 g6 Bg2 Bg7 Rb1 [ECO A25 English: closed, Hort variation] c4 e5 Nc3 Nc6 g3 g6 Bg2 Bg7 e3 d6 N1e2 Be6 [ECO A25 English: closed, Taimanov variation] c4 e5 Nc3 Nc6 g3 g6 Bg2 Bg7 e3 d6 N1e2 Nh6 [ECO A25 English: closed system] c4 e5 Nc3 Nc6 g3 g6 Bg2 Bg7 [ECO A25 English: Sicilian reversed] c4 e5 Nc3 Nc6 [ECO A24 English: Bremen system with ...g6] c4 e5 Nc3 Nf6 g3 g6 [ECO A23 English: Bremen system, Keres variation] c4 e5 Nc3 Nf6 g3 c6 [ECO A22 English: Bremen, Smyslov system] c4 e5 Nc3 Nf6 g3 Bb4 [ECO A22 English: Bremen, reverse dragon] c4 e5 Nc3 Nf6 g3 d5 [ECO A22 English: Carls' Bremen system] c4 e5 Nc3 Nf6 g3 [ECO A22 English: Bellon gambit] c4 e5 Nc3 Nf6 Nf3 e4 Ng5 b5 [ECO A22 English opening] c4 e5 Nc3 Nf6 [ECO A21 English, Kramnik-Shirov counterattack] c4 e5 Nc3 Bb4 [ECO A21 English, Smyslov defence] c4 e5 Nc3 d6 Nf3 Bg4 [ECO A21 English opening] c4 e5 Nc3 d6 Nf3 [ECO A21 English, Keres variation] c4 e5 Nc3 d6 g3 c6 [ECO A21 English, Tr\"oger defence] c4 e5 Nc3 d6 g3 Be6 Bg2 Nc6 [ECO A21 English opening] c4 e5 Nc3 [ECO A20 English, Nimzovich, Flohr variation] c4 e5 Nf3 e4 [ECO A20 English, Nimzovich variation] c4 e5 Nf3 [ECO A20 English opening] c4 e5 [ECO A19 English: Mikenas-Carls, Sicilian variation] c4 Nf6 Nc3 e6 e4 c5 [ECO A18 English: Mikenas-Carls, Kevitz variation] c4 Nf6 Nc3 e6 e4 Nc6 [ECO A18 English: Mikenas-Carls, Flohr variation] c4 Nf6 Nc3 e6 e4 d5 e5 [ECO A18 English: Mikenas-Carls variation] c4 Nf6 Nc3 e6 e4 [ECO A17 English: Nimzo-English opening] c4 Nf6 Nc3 e6 Nf3 Bb4 [ECO A17 English: Queens Indian, Romanishin variation] c4 Nf6 Nc3 e6 Nf3 b6 e4 Bb7 Bd3 [ECO A17 English: Queens Indian formation] c4 Nf6 Nc3 e6 Nf3 b6 [ECO A17 English opening] c4 Nf6 Nc3 e6 [ECO A16 English: Anglo-Gr\"unfeld defense, Korchnoi variation] c4 Nf6 Nc3 d5 cd Nd5 Nf3 g6 g3 Bg7 Bg2 e5 [ECO A16 English: Anglo-Gr\"unfeld defense] c4 Nf6 Nc3 d5 cd Nd5 Nf3 [ECO A16 English: Anglo-Gr\"unfeld, Czech defense] c4 Nf6 Nc3 d5 cd Nd5 g3 g6 Bg2 Nb6 [ECO A16 English: Anglo-Gr\"unfeld, Smyslov defense] c4 Nf6 Nc3 d5 cd Nd5 g3 g6 Bg2 Nc3 [ECO A16 English: Anglo-Gr\"unfeld defense] c4 Nf6 Nc3 d5 [ECO A16 English opening] c4 Nf6 Nc3 [ECO A15 English opening] c4 Nf6 Nf3 [ECO A15 English orang-utan] c4 Nf6 b4 [ECO A15 English, 1...Nf6 ] c4 Nf6 [ECO A14 English: Symmetrical, Keres defence] c4 e6 Nf3 d5 g3 Nf6 Bg2 Be7 o-o c5 cd Nd5 Nc3 Nc6 [ECO A14 English: Neo-Catalan declined] c4 e6 Nf3 d5 g3 Nf6 Bg2 Be7 o-o [ECO A13 English: Neo-Catalan accepted] c4 e6 Nf3 d5 g3 Nf6 Bg2 dc [ECO A13 English: Neo-Catalan] c4 e6 Nf3 d5 g3 Nf6 [ECO A13 English: Kurajica defence] c4 e6 Nf3 d5 g3 c6 [ECO A13 English opening: Agincourt variation] c4 e6 Nf3 d5 g3 [ECO A13 English: Wimpey system] c4 e6 Nf3 d5 b3 Nf6 Bb2 c5 e3 [ECO A13 English opening: Agincourt variation] c4 e6 Nf3 d5 [ECO A13 English: Romanishin gambit] c4 e6 Nf3 Nf6 g3 a6 Bg2 b5 [ECO A13 English opening] c4 e6 [ECO A12 English: Caro-Kann defensive system, Bogolyubov variation] c4 c6 Nf3 d5 b3 Bg4 [ECO A12 English: Capablanca's variation] c4 c6 Nf3 d5 b3 Nf6 Bb2 Bg4 [ECO A12 English: New York defensive system] c4 c6 Nf3 d5 b3 Nf6 Bb2 Bf5 [ECO A12 English: Bled variation] c4 c6 Nf3 d5 b3 Nf6 Bb2 g6 [ECO A12 English: Caro-Kann defensive system] c4 c6 Nf3 d5 b3 Nf6 Bb2 [ECO A12 English: London defensive system] c4 c6 Nf3 d5 b3 Nf6 g3 Bf5 [ECO A12 English: Torre defensive system] c4 c6 Nf3 d5 b3 Nf6 g3 Bg4 [ECO A12 English: Caro-Kann defensive system] c4 c6 Nf3 d5 b3 [ECO A11 English: Caro-Kann defensive system] c4 c6 [ECO A10 English: Anglo-Dutch defense] c4 f5 [ECO A10 English: Jaenisch gambit] c4 b5 [ECO A10 English: Adorjan defence] c4 g6 e4 e5 [ECO A10 English opening] c4 g6 [ECO A10 English opening] c4 [ECO A09 R\'eti accepted: Keres variation] Nf3 d5 c4 dc e3 Be6 [ECO A09 R\'eti accepted] Nf3 d5 c4 dc [ECO A09 R\'eti: advance variation] Nf3 d5 c4 d4 [ECO A09 R\'eti opening] Nf3 d5 c4 [ECO A08 R\'eti: King's Indian attack, French variation] Nf3 d5 g3 c5 Bg2 Nc6 o-o e6 d3 Nf6 N1d2 Be7 e4 o-o Re1 [ECO A08 R\'eti: King's Indian attack] Nf3 d5 g3 c5 Bg2 [ECO A07 R\'eti: King's Indian attack ] Nf3 d5 g3 c5 [ECO A07 R\'eti: King's Indian attack, Pachman system] Nf3 d5 g3 g6 Bg2 Bg7 o-o e5 d3 Ne7 [ECO A07 R\'eti: King's Indian attack] Nf3 d5 g3 g6 [ECO A07 R\'eti: King's Indian attack, Keres variation] Nf3 d5 g3 Bg4 Bg2 Nd7 [ECO A07 R\'eti: King's Indian attack, Yugoslav variation] Nf3 d5 g3 Nf6 Bg2 c6 o-o Bg4 [ECO A07 R\'eti: King's Indian attack ] Nf3 d5 g3 [ECO A06 R\'eti: Nimzovich-Larsen attack] Nf3 d5 b3 [ECO A06 Tennison gambit] Nf3 d5 e4 [ECO A06 Santasiere's folly] Nf3 d5 b4 [ECO A06 R\'eti: old Indian attack] Nf3 d5 d3 [ECO A06 R\'eti opening] Nf3 d5 [ECO A05 R\'eti: King's Indian attack, R\'eti-Smyslov variation] Nf3 Nf6 g3 g6 b4 [ECO A05 R\'eti: King's Indian attack] Nf3 Nf6 g3 g6 [ECO A05 R\'eti: King's Indian attack, Spassky's variation] Nf3 Nf6 g3 b5 [ECO A05 R\'eti opening] Nf3 Nf6 [ECO A04 R\'eti: Pirc-Lisitsin gambit] Nf3 f5 e4 [ECO A04 R\'eti: Lisitsin gambit deferred] Nf3 f5 d3 Nf6 e4 [ECO A04 R\'eti v Dutch] Nf3 f5 [ECO A04 R\'eti: Wade defence] Nf3 d6 e4 Bg4 [ECO A04 R\'eti opening] Nf3 d6 [ECO A04 R\'eti: Herrstr\"om gambit] Nf3 g5 [ECO A04 R\'eti opening] Nf3 [ECO A03 Mujannah opening] f4 d5 c4 [ECO A03 Bird's opening: Williams gambit] f4 d5 e4 [ECO A03 Bird's opening: Lasker variation] f4 d5 Nf3 Nf6 e3 c5 [ECO A03 Bird's opening] f4 d5 [ECO A02 Bird: From gambit, Lipke variation] f4 e5 fe d6 ed Bd6 Nf3 Nh6 d4 [ECO A02 Bird: From gambit, Lasker variation] f4 e5 fe d6 ed Bd6 Nf3 g5 [ECO A02 Bird: From gambit] f4 e5 [ECO A02 Bird: Hobbs gambit] f4 g5 [ECO A02 Bird's opening, Swiss gambit] f4 f5 e4 fe Nc3 Nf6 g4 [ECO A02 Bird's opening] f4 [ECO A01 Nimzovich-Larsen attack: modern variation] b3 e5 [ECO A01 Nimzovich-Larsen attack: Indian variation] b3 Nf6 [ECO A01 Nimzovich-Larsen attack: classical variation] b3 d5 [ECO A01 Nimzovich-Larsen attack: English variation] b3 c5 [ECO A01 Nimzovich-Larsen attack: Dutch variation] b3 f5 [ECO A01 Nimzovich-Larsen attack: Polish variation] b3 b5 [ECO A01 Nimzovich-Larsen attack: symmetrical variation] b3 b6 [ECO A01 Nimzovich-Larsen attack] b3 [ECO A00 Polish: T\"ubingen variation] b4 Nh6 [ECO A00 Polish: Outflank variation] b4 c6 [ECO A00 Polish opening] b4 [ECO A00 Lasker simul special] g3 h5 [ECO A00 Benko's opening: reversed Alekhine] g3 e5 Nf3 [ECO A00 Benko's opening] g3 [ECO A00 Grob: Romford counter-gambit] g4 d5 Bg2 Bg4 c4 d4 [ECO A00 Grob: Fritz gambit] g4 d5 Bg2 Bg4 c4 [ECO A00 Grob: spike attack] g4 d5 Bg2 c6 g5 [ECO A00 Grob's attack] g4 [ECO A00 Global opening] h3 e5 a3 [ECO A00 Clemenz opening] h3 [ECO A00 Amar gambit] Nh3 d5 g3 e5 f4 Bh3 Bh3 ef [ECO A00 Amar opening] Nh3 [ECO A00 Battambang opening] Nc3 e5 a3 [ECO A00 Dunst opening] Nc3 e5 [ECO A00 Novosibirsk opening] Nc3 c5 d4 cd Qd4 Nc6 Qh4 [ECO A00 Dunst opening] Nc3 [ECO A00 Anderssen's opening] a3 [ECO A00 Crab opening] a4 e5 h4 [ECO A00 Ware opening] a4 [ECO A00 Saragossa opening] c3 [ECO A00 Valencia opening] d3 e5 Nd2 [ECO A00 Mieses opening] d3 e5 [ECO A00 Venezolana opening] d3 c5 Nc3 Nc6 g3 [ECO A00 Mieses opening] d3 [ECO A00 Amsterdam attack] e3 e5 c4 d6 Nc3 Nc6 b3 Nf6 [ECO A00 Van't Kruijs opening] e3 [ECO A00 Hammerschlag ] f3 e5 Kf2 [ECO A00 Gedult's opening] f3 [ECO A00 Anti-Borg opening] h4 [ECO A00 Durkin's attack] Na3