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ECO Chess Opening Codes:
A00 Uncommon Opening
1 a3, b3, d3, g4, etc.
A01 Nimzovich-Larsen Attack
1 b3
A02 Bird's Opening
1 f4
A03 Bird's Opening
1 f4 d5
A04 Reti Opening
1 Nf3
A05 Reti Opening
1 Nf3 Nf6
A06 Reti Opening
1 Nf3 d5
A07 King's Indian Attack
1 Nf3 d5 2 g3
A08 King's Indian Attack
1 Nf3 d5 2 g3 c5 3 Bg2
A09 Reti Opening
1 Nf3 d5 2 c4
A10 English
1 c4
A11 English, Caro-Kann Defensive System
1 c4 c6
A12 English with b3
1 c4 c6 2 Nf3 d5 3 b3
A13 English
1 c4 e6
A14 English
1 c4 e6 2 Nf3 d5 3 g3 Nf6 4 Bg2 Be7 5 O-O
A15 English
1 c4 Nf6
A16 English
1 c4 Nf6 2 Nc3
A17 English
1 c4 Nf6 2 Nc3 e6
A18 English, Mikenas-Carls
1 c4 Nf6 2 Nc3 e6 3 e4
A19 English, Mikenas-Carls, Sicilian Variation
1 c4 Nf6 2 Nc3 e6 3 e4 c5
A20 English
1 c4 e5
A21 English
1 c4 e5 2 Nc3
A22 English
1 c4 e5 2 Nc3 Nf6
A23 English, Bremen System, Keres Variation
1 c4 e5 2 Nc3 Nf6 3 g3 c6
A24 English, Bremen System with ...g6
1 c4 e5 2 Nc3 Nf6 3 g3 g6
A25 English
1 c4 e5 2 Nc3 Nc6
A26 English
1 c4 e5 2 Nc3 Nc6 3 g3 g6 4 Bg2 Bg7 5 d3 d6
A27 English, Three Knights System
1 c4 e5 2 Nc3 Nc6 3 Nf3
A28 English
1 c4 e5 2 Nc3 Nc6 3 Nf3 Nf6
A29 English, Four Knights, Kingside Fianchetto
1 c4 e5 2 Nc3 Nc6 3 Nf3 Nf6 4 g3
A30 English, Symmetrical
1 c4 c5
A31 English, Symmetrical, Benoni Formation
1 c4 c5 2 Nf3 Nf6 3 d4
A32 English, Symmetrical Variation
1 c4 c5 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6
A33 English, Symmetrical
1 c4 c5 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6 5 Nc3 Nc6
A34 English, Symmetrical
1 c4 c5 2 Nc3
A35 English, Symmetrical
1 c4 c5 2 Nc3 Nc6
A36 English
1 c4 c5 2 Nc3 Nc6 3 g3
A37 English, Symmetrical
1 c4 c5 2 Nc3 Nc6 3 g3 g6 4 Bg2 Bg7 5 Nf3
A38 English, Symmetrical
1 c4 c5 2 Nc3 Nc6 3 g3 g6 4 Bg2 Bg7 5 Nf3 Nf6
A39 English, Symmetrical, Main line with d4
1 c4 c5 2 Nc3 Nc6 3 g3 g6 4 Bg2 Bg7 5 Nf3 Nf6 6 O-O O-O 7 d4
A40 Queen's Pawn Game
1 d4
A41 Queen's Pawn Game (with ...d6)
1 d4 d6
A42 Modern Defense, Averbakh System
1 d4 d6 2 c4 g6 3 Nc3 Bg7 4 e4
A43 Old Benoni
1 d4 c5
A44 Old Benoni Defense
1 d4 c5 2 d5 e5
A45 Queen's Pawn Game
1 d4 Nf6
A46 Queen's Pawn Game
1 d4 Nf6 2 Nf3
A47 Queen's Indian
1 d4 Nf6 2 Nf3 b6
A48 King's Indian
1 d4 Nf6 2 Nf3 g6
A49 King's Indian, Fianchetto without c4
1 d4 Nf6 2 Nf3 g6 3 g3
A50 Queen's Pawn Game
1 d4 Nf6 2 c4
A51 Budapest Gambit
1 d4 Nf6 2 c4 e5
A52 Budapest Gambit
1 d4 Nf6 2 c4 e5 3 dxe5 Ng4
A53 Old Indian
1 d4 Nf6 2 c4 d6
A54 Old Indian, Ukrainian Variation, 4.Nf3
1 d4 Nf6 2 c4 d6 3 Nc3 e5 4 Nf3
A55 Old Indian, Main line
1 d4 Nf6 2 c4 d6 3 Nc3 e5 4 Nf3 Nbd7 5 e4
A56 Benoni Defense
1 d4 Nf6 2 c4 c5
A57 Benko Gambit
1 d4 Nf6 2 c4 c5 3 d5 b5
A58 Benko Gambit
1 d4 Nf6 2 c4 c5 3 d5 b5 4 cxb5 a6 5 bxa6
A59 Benko Gambit
1 d4 Nf6 2 c4 c5 3 d5 b5 4 cxb5 a6 5 bxa6 Bxa6 6 Nc3 d6 7 e4
A60 Benoni Defense
1 d4 Nf6 2 c4 c5 3 d5 e6
A61 Benoni
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 Nf3 g6
A62 Benoni, Fianchetto Variation
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 Nf3 g6 7 g3 Bg7 8 Bg2 O-O
A63 Benoni, Fianchetto, 9...Nbd7
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 Nf3 g6 7 g3 Bg7 8 Bg2 O-O 9
A64 Benoni, Fianchetto, 11...Re8
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 Nf3 g6 7 g3 Bg7 8 Bg2 O-O 9
A65 Benoni, 6.e4
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4
A66 Benoni
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 f4
A67 Benoni, Taimanov Variation
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 f4 Bg7 8 Bb5+
A68 Benoni, Four Pawns Attack
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 f4 Bg7 8 Nf3 O-O
A69 Benoni, Four Pawns Attack, Main line
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 f4 Bg7 8 Nf3 O-O 9
A70 Benoni, Classical with 7.Nf3
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 Nf3
A71 Benoni, Classical, 8.Bg5
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 Nf3 Bg7 8 Bg5
A72 Benoni, Classical without 9.O-O
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 Nf3 Bg7 8 Be2 O-O
A73 Benoni, Classical, 9.O-O
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 Nf3 Bg7 8 Be2 O-O 9
A74 Benoni, Classical, 9...a6, 10.a4
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 Nf3 Bg7 8 Be2 O-O 9
A75 Benoni, Classical with ...a6 and 10...Bg4
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 Nf3 Bg7 8 Be2 O-O 9
A76 Benoni, Classical, 9...Re8
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 Nf3 Bg7 8 Be2 O-O 9
A77 Benoni, Classical, 9...Re8, 10.Nd2
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 Nf3 Bg7 8 Be2 O-O 9
A78 Benoni, Classical with ...Re8 and ...Na6
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 Nf3 Bg7 8 Be2 O-O 9
A79 Benoni, Classical, 11.f3
1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 Nf3 Bg7 8 Be2 O-O 9
A80 Dutch
1 d4 f5
A81 Dutch
1 d4 f5 2 g3
A82 Dutch, Staunton Gambit
1 d4 f5 2 e4
A83 Dutch, Staunton Gambit
1 d4 f5 2 e4 fxe4 3 Nc3 Nf6 4 Bg5
A84 Dutch
1 d4 f5 2 c4
A85 Dutch, with c4 & Nc3
1 d4 f5 2 c4 Nf6 3 Nc3
A86 Dutch
1 d4 f5 2 c4 Nf6 3 g3
A87 Dutch, Leningrad, Main Variation
1 d4 f5 2 c4 Nf6 3 g3 g6 4 Bg2 Bg7 5 Nf3
A88 Dutch, Leningrad, Main Variation with c6
1 d4 f5 2 c4 Nf6 3 g3 g6 4 Bg2 Bg7 5 Nf3 O-O 6 O-O d6 7 Nc3 c6
A89 Dutch, Leningrad, Main Variation with Nc6
1 d4 f5 2 c4 Nf6 3 g3 g6 4 Bg2 Bg7 5 Nf3 O-O 6 O-O d6 7 Nc3 Nc6
A90 Dutch
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2
A91 Dutch Defense
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7
A92 Dutch
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7 5 Nf3 O-O
A93 Dutch, Stonewall, Botvinnik Variation
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7 5 Nf3 O-O 6 O-O d5 7 b3
A94 Dutch, Stonewall with Ba3
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7 5 Nf3 O-O 6 O-O d5 7 b3 c6 8 Ba3
A95 Dutch, Stonewall
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7 5 Nf3 O-O 6 O-O d5 7 Nc3 c6
A96 Dutch, Classical Variation
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7 5 Nf3 O-O 6 O-O d6
A97 Dutch, Ilyin-Genevsky
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7 5 Nf3 O-O 6 O-O d6 7 Nc3 Qe8
A98 Dutch, Ilyin-Genevsky Variation with Qc2
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7 5 Nf3 O-O 6 O-O d6 7 Nc3 Qe8 8 Qc2
A99 Dutch, Ilyin-Genevsky Variation with b3
1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7 5 Nf3 O-O 6 O-O d6 7 Nc3 Qe8 8 b3
B00 Uncommon King's Pawn Opening
1 e4
B01 Scandinavian
1 e4 d5
B02 Alekhine's Defense
1 e4 Nf6
B03 Alekhine's Defense
1 e4 Nf6 2 e5 Nd5 3 d4
B04 Alekhine's Defense, Modern
1 e4 Nf6 2 e5 Nd5 3 d4 d6 4 Nf3
B05 Alekhine's Defense, Modern
1 e4 Nf6 2 e5 Nd5 3 d4 d6 4 Nf3 Bg4
B06 Robatsch
1 e4 g6
B07 Pirc
1 e4 d6 2 d4 Nf6
B08 Pirc, Classical
1 e4 d6 2 d4 Nf6 3 Nc3 g6 4 Nf3
B09 Pirc, Austrian Attack
1 e4 d6 2 d4 Nf6 3 Nc3 g6 4 f4
B10 Caro-Kann
1 e4 c6
B11 Caro-Kann, Two Knights, 3...Bg4
1 e4 c6 2 Nc3 d5 3 Nf3 Bg4
B12 Caro-Kann Defense
1 e4 c6 2 d4
B13 Caro-Kann, Exchange
1 e4 c6 2 d4 d5 3 exd5 cxd5
B14 Caro-Kann, Panov-Botvinnik Attack
1 e4 c6 2 d4 d5 3 exd5 cxd5 4 c4 Nf6 5 Nc3 e6
B15 Caro-Kann
1 e4 c6 2 d4 d5 3 Nc3
B16 Caro-Kann, Bronstein-Larsen Variation
1 e4 c6 2 d4 d5 3 Nc3 dxe4 4 Nxe4 Nf6 5 Nxf6+ gxf6
B17 Caro-Kann, Steinitz Variation
1 e4 c6 2 d4 d5 3 Nc3 dxe4 4 Nxe4 Nd7
B18 Caro-Kann, Classical
1 e4 c6 2 d4 d5 3 Nc3 dxe4 4 Nxe4 Bf5
B19 Caro-Kann, Classical
1 e4 c6 2 d4 d5 3 Nc3 dxe4 4 Nxe4 Bf5 5 Ng3 Bg6 6 h4 h6 7 Nf3 Nd7
B20 Sicilian
1 e4 c5
B21 Sicilian, 2.f4 and 2.d4
1 e4 c5 2 f4
B22 Sicilian, Alapin
1 e4 c5 2 c3
B23 Sicilian, Closed
1 e4 c5 2 Nc3
B24 Sicilian, Closed
1 e4 c5 2 Nc3 Nc6 3 g3
B25 Sicilian, Closed
1 e4 c5 2 Nc3 Nc6 3 g3 g6 4 Bg2 Bg7 5 d3 d6
B26 Sicilian, Closed, 6.Be3
1 e4 c5 2 Nc3 Nc6 3 g3 g6 4 Bg2 Bg7 5 d3 d6 6 Be3
B27 Sicilian
1 e4 c5 2 Nf3
B28 Sicilian, O'Kelly Variation
1 e4 c5 2 Nf3 a6
B29 Sicilian, Nimzovich-Rubinstein
1 e4 c5 2 Nf3 Nf6
B30 Sicilian
1 e4 c5 2 Nf3 Nc6
B31 Sicilian, Rossolimo Variation
1 e4 c5 2 Nf3 Nc6 3 Bb5 g6
B32 Sicilian
1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 e5
B33 Sicilian
1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4
B34 Sicilian, Accelerated Fianchetto
1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 g6 5 Nxc6
B35 Sicilian, Accelerated Fianchetto, Modern Variation with Bc4
1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 g6 5 Nc3 Bg7 6 Be3 Nf6 7 Bc4
B36 Sicilian, Accelerated Fianchetto
1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 g6 5 c4
B37 Sicilian, Accelerated Fianchetto
1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 g6 5 c4 Bg7
B38 Sicilian, Accelerated Fianchetto, Maroczy Bind, 6.Be3
1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 g6 5 c4 Bg7 6 Be3
B39 Sicilian, Accelerated Fianchetto, Breyer Variation
1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 g6 5 c4 Bg7 6 Be3 Nf6 7 Nc3 Ng4
B40 Sicilian
1 e4 c5 2 Nf3 e6
B41 Sicilian, Kan
1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 a6
B42 Sicilian, Kan
1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 a6 5 Bd3
B43 Sicilian, Kan, 5.Nc3
1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 a6 5 Nc3
B44 Sicilian
1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 Nc6
B45 Sicilian, Taimanov
1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 Nc6 5 Nc3
B46 Sicilian, Taimanov Variation
1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 Nc6 5 Nc3 a6
B47 Sicilian, Taimanov (Bastrikov) Variation
1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 Nc6 5 Nc3 Qc7
B48 Sicilian, Taimanov Variation
1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 Nc6 5 Nc3 Qc7 6 Be3
B49 Sicilian, Taimanov Variation
1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 Nc6 5 Nc3 Qc7 6 Be3 a6 7 Be2
B50 Sicilian
1 e4 c5 2 Nf3 d6
B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack
1 e4 c5 2 Nf3 d6 3 Bb5+
B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack
1 e4 c5 2 Nf3 d6 3 Bb5+ Bd7
B53 Sicilian
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Qxd4
B54 Sicilian
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4
B55 Sicilian, Prins Variation, Venice Attack
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 f3 e5 6 Bb5+
B56 Sicilian
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3
B57 Sicilian
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bc4
B58 Sicilian
1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 d6 6 Be2
B59 Sicilian, Boleslavsky Variation, 7.Nb3
1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 d6 6 Be2 e5 7 Nb3
B60 Sicilian, Richter-Rauzer
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bg5
B61 Sicilian, Richter-Rauzer, Larsen Variation, 7.Qd2
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bg5 Bd7 7 Qd2
B62 Sicilian, Richter-Rauzer
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bg5 e6
B63 Sicilian, Richter-Rauzer Attack
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bg5 e6 7 Qd2
B64 Sicilian, Richter-Rauzer Attack
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bg5 e6 7 Qd2 Be7 8 O-O-O O-O 9 f4
B65 Sicilian, Richter-Rauzer Attack, 7...Be7 Defense, 9...Nxd4
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bg5 e6 7 Qd2 Be7 8 O-O-O O-O 9 f4 Nxd4 10 Qxd4
B66 Sicilian, Richter-Rauzer Attack, 7...a6
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bg5 e6 7 Qd2 a6
B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bg5 e6 7 Qd2 a6 8 O-O-O Bd7
B68 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 9...Be7
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bg5 e6 7 Qd2 a6 8 O-O-O Bd7 9 f4 Be7
B69 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 11.Bxf6
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bg5 e6 7 Qd2 a6 8 O-O-O Bd7 9 f4 Be7 10 Nf3 b5 11 Bxf6
B70 Sicilian, Dragon Variation
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6
B71 Sicilian, Dragon, Levenfish Variation
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6 6 f4
B72 Sicilian, Dragon
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6 6 Be3
B73 Sicilian, Dragon, Classical
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6 6 Be3 Bg7 7 Be2 Nc6 8 O-O
B74 Sicilian, Dragon, Classical
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6 6 Be3 Bg7 7 Be2 Nc6 8 O-O O-O 9 Nb3
B75 Sicilian, Dragon, Yugoslav Attack
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6 6 Be3 Bg7 7 f3
B76 Sicilian, Dragon, Yugoslav Attack
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6 6 Be3 Bg7 7 f3 O-O
B77 Sicilian, Dragon, Yugoslav Attack
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6 6 Be3 Bg7 7 f3 O-O 8 Qd2 Nc6 9 Bc4
B78 Sicilian, Dragon, Yugoslav Attack, 10.castle long
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6 6 Be3 Bg7 7 f3 O-O 8 Qd2 Nc6 9 Bc4 Bd7 10 O-O-O
B79 Sicilian, Dragon, Yugoslav Attack, 12.h4
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6 6 Be3 Bg7 7 f3 O-O 8 Qd2 Nc6 9 Bc4 Bd7 10 O-O-O Qa5 11 Bb3 Rfc8 12 h4
B80 Sicilian, Scheveningen
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6
B81 Sicilian, Scheveningen, Keres Attack
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 g4
B82 Sicilian, Scheveningen
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 f4
B83 Sicilian
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 Be2
B84 Sicilian, Scheveningen
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 Be2 a6
B85 Sicilian, Scheveningen, Classical
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 Be2 a6 7 O-O Qc7 8 f4 Nc6
B86 Sicilian, Fischer-Sozin Attack
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 Bc4
B87 Sicilian, Fischer-Sozin with ...a6 and ...b5
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 Bc4 a6 7 Bb3 b5
B88 Sicilian, Fischer-Sozin Attack
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 Bc4 Nc6
B89 Sicilian
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 Bc4 Nc6 7 Be3
B90 Sicilian, Najdorf
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6
B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 g3
B92 Sicilian, Najdorf, Opocensky Variation
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 Be2
B93 Sicilian, Najdorf, 6.f4
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 f4
B94 Sicilian, Najdorf
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 Bg5
B95 Sicilian, Najdorf, 6...e6
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 Bg5 e6
B96 Sicilian, Najdorf
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 Bg5 e6 7 f4
B97 Sicilian, Najdorf
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 Bg5 e6 7 f4 Qb6
B98 Sicilian, Najdorf
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 Bg5 e6 7 f4 Be7
B99 Sicilian, Najdorf, 7...Be7 Main line
1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 Bg5 e6 7 f4 Be7 8 Qf3 Qc7 9 O-O-O Nbd7
C00 French Defense
1 e4 e6
C01 French, Exchange
1 e4 e6 2 d4 d5 3 exd5 exd5 4 Nc3 Nf6 5 Bg5
C02 French, Advance
1 e4 e6 2 d4 d5 3 e5
C03 French, Tarrasch
1 e4 e6 2 d4 d5 3 Nd2
C04 French, Tarrasch, Guimard Main line
1 e4 e6 2 d4 d5 3 Nd2 Nc6 4 Ngf3 Nf6
C05 French, Tarrasch
1 e4 e6 2 d4 d5 3 Nd2 Nf6
C06 French, Tarrasch
1 e4 e6 2 d4 d5 3 Nd2 Nf6 4 e5 Nfd7 5 Bd3 c5 6 c3 Nc6 7 Ne2 cxd4 8 cxd4
C07 French, Tarrasch
1 e4 e6 2 d4 d5 3 Nd2 c5
C08 French, Tarrasch, Open, 4.ed ed
1 e4 e6 2 d4 d5 3 Nd2 c5 4 exd5 exd5
C09 French, Tarrasch, Open Variation, Main line
1 e4 e6 2 d4 d5 3 Nd2 c5 4 exd5 exd5 5 Ngf3 Nc6
C10 French
1 e4 e6 2 d4 d5 3 Nc3
C11 French
1 e4 e6 2 d4 d5 3 Nc3 Nf6
C12 French, MacCutcheon
1 e4 e6 2 d4 d5 3 Nc3 Nf6 4 Bg5 Bb4
C13 French
1 e4 e6 2 d4 d5 3 Nc3 Nf6 4 Bg5 Be7
C14 French, Classical
1 e4 e6 2 d4 d5 3 Nc3 Nf6 4 Bg5 Be7 5 e5 Nfd7 6 Bxe7 Qxe7
C15 French, Winawer
1 e4 e6 2 d4 d5 3 Nc3 Bb4
C16 French, Winawer
1 e4 e6 2 d4 d5 3 Nc3 Bb4 4 e5
C17 French, Winawer, Advance
1 e4 e6 2 d4 d5 3 Nc3 Bb4 4 e5 c5
C18 French, Winawer
1 e4 e6 2 d4 d5 3 Nc3 Bb4 4 e5 c5 5 a3 Bxc3+ 6 bxc3
C19 French, Winawer, Advance
1 e4 e6 2 d4 d5 3 Nc3 Bb4 4 e5 c5 5 a3 Bxc3+ 6 bxc3 Ne7
C20 King's Pawn Game
1 e4 e5
C21 Center Game
1 e4 e5 2 d4 exd4
C22 Center Game
1 e4 e5 2 d4 exd4 3 Qxd4 Nc6
C23 Bishop's Opening
1 e4 e5 2 Bc4
C24 Bishop's Opening
1 e4 e5 2 Bc4 Nf6
C25 Vienna
1 e4 e5 2 Nc3
C26 Vienna
1 e4 e5 2 Nc3 Nf6
C27 Vienna Game
1 e4 e5 2 Nc3 Nf6 3 Bc4 Nxe4
C28 Vienna Game
1 e4 e5 2 Nc3 Nf6 3 Bc4 Nc6
C29 Vienna Gambit
1 e4 e5 2 Nc3 Nf6 3 f4
C30 King's Gambit Declined
1 e4 e5 2 f4
C31 King's Gambit Declined, Falkbeer Counter Gambit
1 e4 e5 2 f4 d5
C32 King's Gambit Declined, Falkbeer Counter Gambit
1 e4 e5 2 f4 d5 3 exd5 e4 4 d3 Nf6
C33 King's Gambit Accepted
1 e4 e5 2 f4 exf4
C34 King's Gambit Accepted
1 e4 e5 2 f4 exf4 3 Nf3
C35 King's Gambit Accepted, Cunningham
1 e4 e5 2 f4 exf4 3 Nf3 Be7
C36 King's Gambit Accepted, Abbazia Defense
1 e4 e5 2 f4 exf4 3 Nf3 d5
C37 King's Gambit Accepted
1 e4 e5 2 f4 exf4 3 Nf3 g5 4 Nc3
C38 King's Gambit Accepted
1 e4 e5 2 f4 exf4 3 Nf3 g5 4 Bc4 Bg7
C39 King's Gambit Accepted
1 e4 e5 2 f4 exf4 3 Nf3 g5 4 h4
C40 King's Knight Opening
1 e4 e5 2 Nf3
C41 Philidor Defense
1 e4 e5 2 Nf3 d6
C42 Petrov Defense
1 e4 e5 2 Nf3 Nf6
C43 Petrov, Modern Attack
1 e4 e5 2 Nf3 Nf6 3 d4 exd4 4 e5 Ne4 5 Qxd4
C44 King's Pawn Game
1 e4 e5 2 Nf3 Nc6
C45 Scotch Game
1 e4 e5 2 Nf3 Nc6 3 d4 exd4 4 Nxd4
C46 Three Knights
1 e4 e5 2 Nf3 Nc6 3 Nc3
C47 Four Knights
1 e4 e5 2 Nf3 Nc6 3 Nc3 Nf6
C48 Four Knights
1 e4 e5 2 Nf3 Nc6 3 Nc3 Nf6 4 Bb5
C49 Four Knights
1 e4 e5 2 Nf3 Nc6 3 Nc3 Nf6 4 Bb5 Bb4