ECO Chess Opening Codes:

A00 Uncommon Opening1 a3, b3, d3, g4, etc.

A01 Nimzovich-Larsen Attack1 b3

A02 Bird's Opening1 f4

A03 Bird's Opening1 f4 d5

A04 Reti Opening1 Nf3

A05 Reti Opening1 Nf3 Nf6

A06 Reti Opening1 Nf3 d5

A07 King's Indian Attack1 Nf3 d5 2 g3

A08 King's Indian Attack1 Nf3 d5 2 g3 c5 3 Bg2

A09 Reti Opening1 Nf3 d5 2 c4

A10 English1 c4

A11 English, Caro-Kann Defensive System1 c4 c6

A12 English with b31 c4 c6 2 Nf3 d5 3 b3

A13 English1 c4 e6

A14 English1 c4 e6 2 Nf3 d5 3 g3 Nf6 4 Bg2 Be7 5 O-O

A15 English1 c4 Nf6

A16 English1 c4 Nf6 2 Nc3

A17 English1 c4 Nf6 2 Nc3 e6

A18 English, Mikenas-Carls1 c4 Nf6 2 Nc3 e6 3 e4

A19 English, Mikenas-Carls, Sicilian Variation1 c4 Nf6 2 Nc3 e6 3 e4 c5

A20 English1 c4 e5

A21 English1 c4 e5 2 Nc3

A22 English1 c4 e5 2 Nc3 Nf6

A23 English, Bremen System, Keres Variation1 c4 e5 2 Nc3 Nf6 3 g3 c6

A24 English, Bremen System with ...g61 c4 e5 2 Nc3 Nf6 3 g3 g6

A25 English1 c4 e5 2 Nc3 Nc6

A26 English1 c4 e5 2 Nc3 Nc6 3 g3 g6 4 Bg2 Bg7 5 d3 d6

A27 English, Three Knights System1 c4 e5 2 Nc3 Nc6 3 Nf3

A28 English1 c4 e5 2 Nc3 Nc6 3 Nf3 Nf6

A29 English, Four Knights, Kingside Fianchetto1 c4 e5 2 Nc3 Nc6 3 Nf3 Nf6 4 g3

A30 English, Symmetrical1 c4 c5

A31 English, Symmetrical, Benoni Formation1 c4 c5 2 Nf3 Nf6 3 d4

A32 English, Symmetrical Variation1 c4 c5 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6

A33 English, Symmetrical1 c4 c5 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6 5 Nc3 Nc6

A34 English, Symmetrical1 c4 c5 2 Nc3

A35 English, Symmetrical1 c4 c5 2 Nc3 Nc6

A36 English1 c4 c5 2 Nc3 Nc6 3 g3

A37 English, Symmetrical1 c4 c5 2 Nc3 Nc6 3 g3 g6 4 Bg2 Bg7 5 Nf3

A38 English, Symmetrical1 c4 c5 2 Nc3 Nc6 3 g3 g6 4 Bg2 Bg7 5 Nf3 Nf6

A39 English, Symmetrical, Main line with d41 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 Game1 d4

A41 Queen's Pawn Game (with ...d6)1 d4 d6

A42 Modern Defense, Averbakh System1 d4 d6 2 c4 g6 3 Nc3 Bg7 4 e4

A43 Old Benoni1 d4 c5

A44 Old Benoni Defense1 d4 c5 2 d5 e5

A45 Queen's Pawn Game1 d4 Nf6

A46 Queen's Pawn Game1 d4 Nf6 2 Nf3

A47 Queen's Indian1 d4 Nf6 2 Nf3 b6

A48 King's Indian1 d4 Nf6 2 Nf3 g6

A49 King's Indian, Fianchetto without c41 d4 Nf6 2 Nf3 g6 3 g3

A50 Queen's Pawn Game1 d4 Nf6 2 c4

A51 Budapest Gambit1 d4 Nf6 2 c4 e5

A52 Budapest Gambit1 d4 Nf6 2 c4 e5 3 dxe5 Ng4

A53 Old Indian1 d4 Nf6 2 c4 d6

A54 Old Indian, Ukrainian Variation, 4.Nf31 d4 Nf6 2 c4 d6 3 Nc3 e5 4 Nf3

A55 Old Indian, Main line1 d4 Nf6 2 c4 d6 3 Nc3 e5 4 Nf3 Nbd7 5 e4

A56 Benoni Defense1 d4 Nf6 2 c4 c5

A57 Benko Gambit1 d4 Nf6 2 c4 c5 3 d5 b5

A58 Benko Gambit1 d4 Nf6 2 c4 c5 3 d5 b5 4 cxb5 a6 5 bxa6

A59 Benko Gambit1 d4 Nf6 2 c4 c5 3 d5 b5 4 cxb5 a6 5 bxa6 Bxa6 6 Nc3 d6 7 e4

A60 Benoni Defense1 d4 Nf6 2 c4 c5 3 d5 e6

A61 Benoni1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 Nf3 g6

A62 Benoni, Fianchetto Variation1 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...Nbd71 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...Re81 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.e41 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4

A66 Benoni1 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 f4

A67 Benoni, Taimanov Variation1 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 Attack1 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 line1 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.Nf31 d4 Nf6 2 c4 c5 3 d5 e6 4 Nc3 exd5 5 cxd5 d6 6 e4 g6 7 Nf3

A71 Benoni, Classical, 8.Bg51 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-O1 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-O1 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.a41 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...Bg41 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...Re81 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.Nd21 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 ...Na61 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.f31 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 Dutch1 d4 f5

A81 Dutch1 d4 f5 2 g3

A82 Dutch, Staunton Gambit1 d4 f5 2 e4

A83 Dutch, Staunton Gambit1 d4 f5 2 e4 fxe4 3 Nc3 Nf6 4 Bg5

A84 Dutch1 d4 f5 2 c4

A85 Dutch, with c4 & Nc31 d4 f5 2 c4 Nf6 3 Nc3

A86 Dutch1 d4 f5 2 c4 Nf6 3 g3

A87 Dutch, Leningrad, Main Variation1 d4 f5 2 c4 Nf6 3 g3 g6 4 Bg2 Bg7 5 Nf3

A88 Dutch, Leningrad, Main Variation with c61 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 Nc61 d4 f5 2 c4 Nf6 3 g3 g6 4 Bg2 Bg7 5 Nf3 O-O 6 O-O d6 7 Nc3 Nc6

A90 Dutch1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2

A91 Dutch Defense1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7

A92 Dutch1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7 5 Nf3 O-O

A93 Dutch, Stonewall, Botvinnik Variation1 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 Ba31 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, Stonewall1 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 Variation1 d4 f5 2 c4 Nf6 3 g3 e6 4 Bg2 Be7 5 Nf3 O-O 6 O-O d6

A97 Dutch, Ilyin-Genevsky1 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 Qc21 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 b31 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 Opening1 e4

B01 Scandinavian1 e4 d5

B02 Alekhine's Defense1 e4 Nf6

B03 Alekhine's Defense1 e4 Nf6 2 e5 Nd5 3 d4

B04 Alekhine's Defense, Modern1 e4 Nf6 2 e5 Nd5 3 d4 d6 4 Nf3

B05 Alekhine's Defense, Modern1 e4 Nf6 2 e5 Nd5 3 d4 d6 4 Nf3 Bg4

B06 Robatsch1 e4 g6

B07 Pirc1 e4 d6 2 d4 Nf6

B08 Pirc, Classical1 e4 d6 2 d4 Nf6 3 Nc3 g6 4 Nf3

B09 Pirc, Austrian Attack1 e4 d6 2 d4 Nf6 3 Nc3 g6 4 f4

B10 Caro-Kann1 e4 c6

B11 Caro-Kann, Two Knights, 3...Bg41 e4 c6 2 Nc3 d5 3 Nf3 Bg4

B12 Caro-Kann Defense1 e4 c6 2 d4

B13 Caro-Kann, Exchange1 e4 c6 2 d4 d5 3 exd5 cxd5

B14 Caro-Kann, Panov-Botvinnik Attack1 e4 c6 2 d4 d5 3 exd5 cxd5 4 c4 Nf6 5 Nc3 e6

B15 Caro-Kann1 e4 c6 2 d4 d5 3 Nc3

B16 Caro-Kann, Bronstein-Larsen Variation1 e4 c6 2 d4 d5 3 Nc3 dxe4 4 Nxe4 Nf6 5 Nxf6+ gxf6

B17 Caro-Kann, Steinitz Variation1 e4 c6 2 d4 d5 3 Nc3 dxe4 4 Nxe4 Nd7

B18 Caro-Kann, Classical1 e4 c6 2 d4 d5 3 Nc3 dxe4 4 Nxe4 Bf5

B19 Caro-Kann, Classical1 e4 c6 2 d4 d5 3 Nc3 dxe4 4 Nxe4 Bf5 5 Ng3 Bg6 6 h4 h6 7 Nf3 Nd7

B20 Sicilian1 e4 c5

B21 Sicilian, 2.f4 and 2.d41 e4 c5 2 f4

B22 Sicilian, Alapin1 e4 c5 2 c3

B23 Sicilian, Closed1 e4 c5 2 Nc3

B24 Sicilian, Closed1 e4 c5 2 Nc3 Nc6 3 g3

B25 Sicilian, Closed1 e4 c5 2 Nc3 Nc6 3 g3 g6 4 Bg2 Bg7 5 d3 d6

B26 Sicilian, Closed, 6.Be31 e4 c5 2 Nc3 Nc6 3 g3 g6 4 Bg2 Bg7 5 d3 d6 6 Be3

B27 Sicilian1 e4 c5 2 Nf3

B28 Sicilian, O'Kelly Variation1 e4 c5 2 Nf3 a6

B29 Sicilian, Nimzovich-Rubinstein1 e4 c5 2 Nf3 Nf6

B30 Sicilian1 e4 c5 2 Nf3 Nc6

B31 Sicilian, Rossolimo Variation1 e4 c5 2 Nf3 Nc6 3 Bb5 g6

B32 Sicilian1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 e5

B33 Sicilian1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4

B34 Sicilian, Accelerated Fianchetto1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 g6 5 Nxc6

B35 Sicilian, Accelerated Fianchetto, Modern Variation with Bc41 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 g6 5 Nc3 Bg7 6 Be3 Nf6 7 Bc4

B36 Sicilian, Accelerated Fianchetto1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 g6 5 c4

B37 Sicilian, Accelerated Fianchetto1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 g6 5 c4 Bg7

B38 Sicilian, Accelerated Fianchetto, Maroczy Bind, 6.Be31 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 g6 5 c4 Bg7 6 Be3

B39 Sicilian, Accelerated Fianchetto, Breyer Variation1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 g6 5 c4 Bg7 6 Be3 Nf6 7 Nc3 Ng4

B40 Sicilian1 e4 c5 2 Nf3 e6

B41 Sicilian, Kan1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 a6

B42 Sicilian, Kan1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 a6 5 Bd3

B43 Sicilian, Kan, 5.Nc31 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 a6 5 Nc3

B44 Sicilian1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 Nc6

B45 Sicilian, Taimanov1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 Nc6 5 Nc3

B46 Sicilian, Taimanov Variation1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 Nc6 5 Nc3 a6

B47 Sicilian, Taimanov (Bastrikov) Variation1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 Nc6 5 Nc3 Qc7

B48 Sicilian, Taimanov Variation1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 Nc6 5 Nc3 Qc7 6 Be3

B49 Sicilian, Taimanov Variation1 e4 c5 2 Nf3 e6 3 d4 cxd4 4 Nxd4 Nc6 5 Nc3 Qc7 6 Be3 a6 7 Be2

B50 Sicilian1 e4 c5 2 Nf3 d6

B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack1 e4 c5 2 Nf3 d6 3 Bb5+

B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack1 e4 c5 2 Nf3 d6 3 Bb5+ Bd7

B53 Sicilian1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Qxd4

B54 Sicilian1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4

B55 Sicilian, Prins Variation, Venice Attack1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 f3 e5 6 Bb5+

B56 Sicilian1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3

B57 Sicilian1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bc4

B58 Sicilian1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 d6 6 Be2

B59 Sicilian, Boleslavsky Variation, 7.Nb31 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 d6 6 Be2 e5 7 Nb3

B60 Sicilian, Richter-Rauzer1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bg5

B61 Sicilian, Richter-Rauzer, Larsen Variation, 7.Qd21 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bg5 Bd7 7 Qd2

B62 Sicilian, Richter-Rauzer1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bg5 e6

B63 Sicilian, Richter-Rauzer Attack1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 Nc6 6 Bg5 e6 7 Qd2

B64 Sicilian, Richter-Rauzer Attack1 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...Nxd41 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...a61 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...Bd71 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...Be71 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.Bxf61 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 Variation1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6

B71 Sicilian, Dragon, Levenfish Variation1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6 6 f4

B72 Sicilian, Dragon1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6 6 Be3

B73 Sicilian, Dragon, Classical1 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, Classical1 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 Attack1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6 6 Be3 Bg7 7 f3

B76 Sicilian, Dragon, Yugoslav Attack1 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 Attack1 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 long1 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.h41 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, Scheveningen1 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, Scheveningen1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 f4

B83 Sicilian1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 Be2

B84 Sicilian, Scheveningen1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 Be2 a6

B85 Sicilian, Scheveningen, Classical1 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 Attack1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 Bc4

B87 Sicilian, Fischer-Sozin with ...a6 and ...b51 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 Bc4 a6 7 Bb3 b5

B88 Sicilian, Fischer-Sozin Attack1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 Bc4 Nc6

B89 Sicilian1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 e6 6 Bc4 Nc6 7 Be3

B90 Sicilian, Najdorf1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6

B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 g3

B92 Sicilian, Najdorf, Opocensky Variation1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 Be2

B93 Sicilian, Najdorf, 6.f41 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 f4

B94 Sicilian, Najdorf1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 Bg5

B95 Sicilian, Najdorf, 6...e61 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 Bg5 e6

B96 Sicilian, Najdorf1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 Bg5 e6 7 f4

B97 Sicilian, Najdorf1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 a6 6 Bg5 e6 7 f4 Qb6

B98 Sicilian, Najdorf1 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 line1 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 Defense1 e4 e6

C01 French, Exchange1 e4 e6 2 d4 d5 3 exd5 exd5 4 Nc3 Nf6 5 Bg5

C02 French, Advance1 e4 e6 2 d4 d5 3 e5

C03 French, Tarrasch1 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, Tarrasch1 e4 e6 2 d4 d5 3 Nd2 Nf6

C06 French, Tarrasch1 e4 e6 2 d4 d5 3 Nd2 Nf6 4 e5 Nfd7 5 Bd3 c5 6 c3 Nc6 7 Ne2 cxd4 8 cxd4

C07 French, Tarrasch1 e4 e6 2 d4 d5 3 Nd2 c5

C08 French, Tarrasch, Open, 4.ed ed1 e4 e6 2 d4 d5 3 Nd2 c5 4 exd5 exd5

C09 French, Tarrasch, Open Variation, Main line1 e4 e6 2 d4 d5 3 Nd2 c5 4 exd5 exd5 5 Ngf3 Nc6

C10 French1 e4 e6 2 d4 d5 3 Nc3

C11 French1 e4 e6 2 d4 d5 3 Nc3 Nf6

C12 French, McCutcheon1 e4 e6 2 d4 d5 3 Nc3 Nf6 4 Bg5 Bb4

C13 French1 e4 e6 2 d4 d5 3 Nc3 Nf6 4 Bg5 Be7

C14 French, Classical1 e4 e6 2 d4 d5 3 Nc3 Nf6 4 Bg5 Be7 5 e5 Nfd7 6 Bxe7 Qxe7

C15 French, Winawer1 e4 e6 2 d4 d5 3 Nc3 Bb4

C16 French, Winawer1 e4 e6 2 d4 d5 3 Nc3 Bb4 4 e5

C17 French, Winawer, Advance1 e4 e6 2 d4 d5 3 Nc3 Bb4 4 e5 c5

C18 French, Winawer1 e4 e6 2 d4 d5 3 Nc3 Bb4 4 e5 c5 5 a3 Bxc3+ 6 bxc3

C19 French, Winawer, Advance1 e4 e6 2 d4 d5 3 Nc3 Bb4 4 e5 c5 5 a3 Bxc3+ 6 bxc3 Ne7

C20 King's Pawn Game1 e4 e5

C21 Center Game1 e4 e5 2 d4 exd4

C22 Center Game1 e4 e5 2 d4 exd4 3 Qxd4 Nc6

C23 Bishop's Opening1 e4 e5 2 Bc4

C24 Bishop's Opening1 e4 e5 2 Bc4 Nf6

C25 Vienna1 e4 e5 2 Nc3

C26 Vienna1 e4 e5 2 Nc3 Nf6

C27 Vienna Game

1 e4 e5 2 Nc3 Nf6 3 Bc4 Nxe4

C28 Vienna Game1 e4 e5 2 Nc3 Nf6 3 Bc4 Nc6

C29 Vienna Gambit1 e4 e5 2 Nc3 Nf6 3 f4

C30 King's Gambit Declined1 e4 e5 2 f4

C31 King's Gambit Declined, Falkbeer Counter Gambit1 e4 e5 2 f4 d5

C32 King's Gambit Declined, Falkbeer Counter Gambit1 e4 e5 2 f4 d5 3 exd5 e4 4 d3 Nf6

C33 King's Gambit Accepted1 e4 e5 2 f4 exf4

C34 King's Gambit Accepted1 e4 e5 2 f4 exf4 3 Nf3

C35 King's Gambit Accepted, Cunningham1 e4 e5 2 f4 exf4 3 Nf3 Be7

C36 King's Gambit Accepted, Abbazia Defense1 e4 e5 2 f4 exf4 3 Nf3 d5

C37 King's Gambit Accepted1 e4 e5 2 f4 exf4 3 Nf3 g5 4 Nc3

C38 King's Gambit Accepted1 e4 e5 2 f4 exf4 3 Nf3 g5 4 Bc4 Bg7

C39 King's Gambit Accepted1 e4 e5 2 f4 exf4 3 Nf3 g5 4 h4

C40 King's Knight Opening1 e4 e5 2 Nf3

C41 Philidor Defense1 e4 e5 2 Nf3 d6

C42 Petrov Defense1 e4 e5 2 Nf3 Nf6

C43 Petrov, Modern Attack1 e4 e5 2 Nf3 Nf6 3 d4 exd4 4 e5 Ne4 5 Qxd4

C44 King's Pawn Game1 e4 e5 2 Nf3 Nc6

C45 Scotch Game1 e4 e5 2 Nf3 Nc6 3 d4 exd4 4 Nxd4

C46 Three Knights1 e4 e5 2 Nf3 Nc6 3 Nc3

C47 Four Knights1 e4 e5 2 Nf3 Nc6 3 Nc3 Nf6

C48 Four Knights1 e4 e5 2 Nf3 Nc6 3 Nc3 Nf6 4 Bb5

C49 Four Knights1 e4 e5 2 Nf3 Nc6 3 Nc3 Nf6 4 Bb5 Bb4

C50 Giuoco Piano

1 e4 e5 2 Nf3 Nc6 3 Bc4 Bc5

C51 Evans Gambit1 e4 e5 2 Nf3 Nc6 3 Bc4 Bc5 4 b4

C52 Evans Gambit1 e4 e5 2 Nf3 Nc6 3 Bc4 Bc5 4 b4 Bxb4 5 c3 Ba5

C53 Giuoco Piano1 e4 e5 2 Nf3 Nc6 3 Bc4 Bc5 4 c3

C54 Giuoco Piano1 e4 e5 2 Nf3 Nc6 3 Bc4 Bc5 4 c3 Nf6 5 d4 exd4 6 cxd4

C55 Two Knights Defense1 e4 e5 2 Nf3 Nc6 3 Bc4 Nf6

C56 Two Knights1 e4 e5 2 Nf3 Nc6 3 Bc4 Nf6 4 d4 exd4 5 O-O Nxe4

C57 Two Knights1 e4 e5 2 Nf3 Nc6 3 Bc4 Nf6 4 Ng5

C58 Two Knights1 e4 e5 2 Nf3 Nc6 3 Bc4 Nf6 4 Ng5 d5 5 exd5 Na5

C59 Two Knights1 e4 e5 2 Nf3 Nc6 3 Bc4 Nf6 4 Ng5 d5 5 exd5 Na5 6 Bb5+ c6 7 dxc6 bxc6 8 Be2 h6

C60 Ruy Lopez1 e4 e5 2 Nf3 Nc6 3 Bb5

C61 Ruy Lopez, Bird's Defense1 e4 e5 2 Nf3 Nc6 3 Bb5 Nd4

C62 Ruy Lopez, Old Steinitz Defense1 e4 e5 2 Nf3 Nc6 3 Bb5 d6

C63 Ruy Lopez, Schliemann Defense1 e4 e5 2 Nf3 Nc6 3 Bb5 f5

C64 Ruy Lopez, Classical1 e4 e5 2 Nf3 Nc6 3 Bb5 Bc5

C65 Ruy Lopez, Berlin Defense1 e4 e5 2 Nf3 Nc6 3 Bb5 Nf6

C66 Ruy Lopez1 e4 e5 2 Nf3 Nc6 3 Bb5 Nf6 4 O-O d6

C67 Ruy Lopez1 e4 e5 2 Nf3 Nc6 3 Bb5 Nf6 4 O-O Nxe4

C68 Ruy Lopez, Exchange1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Bxc6

C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d41 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Bxc6 dc 5 O-O f6 6 d4

C70 Ruy Lopez1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4

C71 Ruy Lopez1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 d6

C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 d6 5 O-O

C73 Ruy Lopez, Modern Steinitz Defense

1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 d6 5 Bxc6+ bxc6 6 d4

C74 Ruy Lopez, Modern Steinitz Defense1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 d6 5 c3

C75 Ruy Lopez, Modern Steinitz Defense1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 d6 5 c3 Bd7

C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 d6 5 c3 Bd7 6 d4 g6

C77 Ruy Lopez1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6

C78 Ruy Lopez1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O

C79 Ruy Lopez, Steinitz Defense Deferred1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O d6

C80 Ruy Lopez, Open1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Nxe4

C81 Ruy Lopez, Open, Howell Attack1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Nxe4 6 d4 b5 7 Bb3 d5 8 dxe5 Be6

C82 Ruy Lopez, Open1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Nxe4 6 d4 b5 7 Bb3 d5 8 dxe5 Be6 9 c3

C83 Ruy Lopez, Open1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Nxe4 6 d4 b5 7 Bb3 d5 8 dxe5 Be6

C84 Ruy Lopez, Closed1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7

C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD)1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Bxc6 dxc6

C86 Ruy Lopez, Worrall Attack1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Qe2

C87 Ruy Lopez1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Re1 d6

C88 Ruy Lopez1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Re1 b5 7 Bb3

C89 Ruy Lopez, Marshall1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Re1 b5 7 Bb3 O-O 8 c3 d5

C90 Ruy Lopez, Closed1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Re1 b5 7 Bb3 O-O 8 c3 d6

C91 Ruy Lopez, Closed1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Re1 b5 7 Bb3 O-O 8 c3 d6 9 d4

C92 Ruy Lopez, Closed1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Re1 b5 7 Bb3 O-O 8 c3 d6 9 h3

C93 Ruy Lopez, Closed, Smyslov Defense1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Re1 b5 7 Bb3 O-O 8 c3 d6 9 h3 h6

C94 Ruy Lopez, Closed, Breyer Defense1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Re1 b5 7 Bb3 O-O 8 c3 d6 9 h3 Nb8

C95 Ruy Lopez, Closed, Breyer1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Re1 b5 7 Bb3 O-O 8 c3 d6 9 h3 Nb8 10 d4

C96 Ruy Lopez, Closed1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Re1 b5 7 Bb3 O-O 8 c3 d6 9 h3 Na5 10 Bc2

C97 Ruy Lopez, Closed, Chigorin1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Re1 b5 7 Bb3 O-O 8 c3 d6 9 h3 Na5 10 Bc2 c5 11 d4 Qc7

C98 Ruy Lopez, Closed, Chigorin1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Re1 b5 7 Bb3 O-O 8 c3 d6 9 h3 Na5 10 Bc2 c5 11 d4 Qc7 12 Nbd2 Nc6

C99 Ruy Lopez, Closed, Chigorin, 12...cd1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 4 Ba4 Nf6 5 O-O Be7 6 Re1 b5 7 Bb3 O-O 8 c3 d6 9 h3 Na5 10 Bc2 c5 11 d4 Qc7 12 Nbd2 cxd4 13 cxd4

D00 Queen's Pawn Game1 d4 d5

D01 Richter-Veresov Attack1 d4 d5 2 Nc3 Nf6 3 Bg5

D02 Queen's Pawn Game1 d4 d5 2 Nf3

D03 Torre Attack (Tartakower Variation)1 d4 d5 2 Nf3 Nf6 3 Bg5

D04 Queen's Pawn Game1 d4 d5 2 Nf3 Nf6 3 e3

D05 Queen's Pawn Game1 d4 d5 2 Nf3 Nf6 3 e3 e6

D06 Queen's Gambit Declined1 d4 d5 2 c4

D07 Queen's Gambit Declined, Chigorin Defense1 d4 d5 2 c4 Nc6

D08 Queen's Gambit Declined, Albin Counter Gambit1 d4 d5 2 c4 e5

D09 Queen's Gambit Declined, Albin Counter Gambit, 5.g31 d4 d5 2 c4 e5 3 dxe5 d4 4 Nf3 Nc6 5 g3

D10 Queen's Gambit Declined Slav1 d4 d5 2 c4 c6

D11 Queen's Gambit Declined Slav1 d4 d5 2 c4 c6 3 Nf3

D12 Queen's Gambit Declined Slav1 d4 d5 2 c4 c6 3 Nf3 Nf6 4 e3 Bf5

D13 Queen's Gambit Declined Slav, Exchange Variation1 d4 d5 2 c4 c6 3 Nf3 Nf6 4 cxd5 cxd5

D14 Queen's Gambit Declined Slav, Exchange Variation1 d4 d5 2 c4 c6 3 Nf3 Nf6 4 cxd5 cxd5 5 Nc3 Nc6 6 Bf4 Bf5

D15 Queen's Gambit Declined Slav1 d4 d5 2 c4 c6 3 Nf3 Nf6 4 Nc3

D16 Queen's Gambit Declined Slav1 d4 d5 2 c4 c6 3 Nf3 Nf6 4 Nc3 dxc4 5 a4

D17 Queen's Gambit Declined Slav

1 d4 d5 2 c4 c6 3 Nf3 Nf6 4 Nc3 dxc4 5 a4 Bf5

D18 Queen's Gambit Declined Slav, Dutch1 d4 d5 2 c4 c6 3 Nf3 Nf6 4 Nc3 dxc4 5 a4 Bf5 6 e3

D19 Queen's Gambit Declined Slav, Dutch1 d4 d5 2 c4 c6 3 Nf3 Nf6 4 Nc3 dxc4 5 a4 Bf5 6 e3 e6 7 Bxc4 Bb4 8 O-O O-O 9 Qe2

D20 Queen's Gambit Accepted1 d4 d5 2 c4 dxc4

D21 Queen's Gambit Accepted1 d4 d5 2 c4 dxc4 3 Nf3

D22 Queen's Gambit Accepted1 d4 d5 2 c4 dxc4 3 Nf3 a6 4 e3 Bg4 5 Bxc4 e6 6 d5

D23 Queen's Gambit Accepted1 d4 d5 2 c4 dxc4 3 Nf3 Nf6

D24 Queen's Gambit Accepted1 d4 d5 2 c4 dxc4 3 Nf3 Nf6 4 Nc3

D25 Queen's Gambit Accepted1 d4 d5 2 c4 dxc4 3 Nf3 Nf6 4 e3

D26 Queen's Gambit Accepted1 d4 d5 2 c4 dxc4 3 Nf3 Nf6 4 e3 e6

D27 Queen's Gambit Accepted, Classical1 d4 d5 2 c4 dxc4 3 Nf3 Nf6 4 e3 e6 5 Bxc4 c5 6 O-O a6

D28 Queen's Gambit Accepted, Classical1 d4 d5 2 c4 dxc4 3 Nf3 Nf6 4 e3 e6 5 Bxc4 c5 6 O-O a6 7 Qe2

D29 Queen's Gambit Accepted, Classical1 d4 d5 2 c4 dxc4 3 Nf3 Nf6 4 e3 e6 5 Bxc4 c5 6 O-O a6 7 Qe2 b5 8 Bb3 Bb7

D30 Queen's Gambit Declined1 d4 d5 2 c4 e6

D31 Queen's Gambit Declined1 d4 d5 2 c4 e6 3 Nc3

D32 Queen's Gambit Declined, Tarrasch1 d4 d5 2 c4 e6 3 Nc3 c5

D33 Queen's Gambit Declined, Tarrasch1 d4 d5 2 c4 e6 3 Nc3 c5 4 cxd5 exd5 5 Nf3 Nc6 6 g3

D34 Queen's Gambit Declined, Tarrasch1 d4 d5 2 c4 e6 3 Nc3 c5 4 cxd5 exd5 5 Nf3 Nc6 6 g3 Nf6 7 Bg2 Be7

D35 Queen's Gambit Declined1 d4 d5 2 c4 e6 3 Nc3 Nf6

D36 Queen's Gambit Declined, Exchange, Positional line, 6.Qc21 d4 d5 2 c4 e6 3 Nc3 Nf6 4 cxd5 exd5 5 Bg5 c6 6 Qc2

D37 Queen's Gambit Declined1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Nf3

D38 Queen's Gambit Declined, Ragozin Variation1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Nf3 Bb4

D39 Queen's Gambit Declined, Ragozin, Vienna Variation1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Nf3 Bb4 5 Bg5 dxc4

D40 Queen's Gambit Declined, Semi-Tarrasch

1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Nf3 c5

D41 Queen's Gambit Declined, Semi-Tarrasch1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Nf3 c5 5 cxd5

D42 Queen's Gambit Declined, Semi-Tarrasch, 7.Bd31 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Nf3 c5 5 cxd5 Nxd5 6 e3 Nc6 7 Bd3

D43 Queen's Gambit Declined Semi-Slav1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Nf3 c6

D44 Queen's Gambit Declined Semi-Slav1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Nf3 c6 5 Bg5 dxc4

D45 Queen's Gambit Declined Semi-Slav1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Nf3 c6 5 e3

D46 Queen's Gambit Declined Semi-Slav1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Nf3 c6 5 e3 Nbd7 6 Bd3

D47 Queen's Gambit Declined Semi-Slav1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Nf3 c6 5 e3 Nbd7 6 Bd3 dxc4 7 Bxc4

D48 Queen's Gambit Declined Semi-Slav, Meran1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Nf3 c6 5 e3 Nbd7 6 Bd3 dxc4 7 Bxc4 b5 8 Bd3 a6

D49 Queen's Gambit Declined Semi-Slav, Meran1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Nf3 c6 5 e3 Nbd7 6 Bd3 dxc4 7 Bxc4 b5 8 Bd3 a6 9 e4 c5 10 e5 cxd4 11 Nxb5

D50 Queen's Gambit Declined1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5

D51 Queen's Gambit Declined1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Nbd7

D52 Queen's Gambit Declined1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Nbd7 5 e3 c6 6 Nf3

D53 Queen's Gambit Declined1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7

D54 Queen's Gambit Declined, Anti-Neo-Orthodox Variation1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Rc1

D55 Queen's Gambit Declined1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Nf3

D56 Queen's Gambit Declined1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Nf3 h6 7 Bh4

D57 Queen's Gambit Declined, Lasker Defense1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Nf3 h6 7 Bh4 Ne4 8 Bxe7 Qxe7

D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) System1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Nf3 h6 7 Bh4 b6

D59 Queen's Gambit Declined, Tartakower1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Nf3 h6 7 Bh4 b6 8 cxd5 Nxd5

D60 Queen's Gambit Declined, Orthodox Defense1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Nf3 Nbd7

D61 Queen's Gambit Declined, Orthodox, Rubinstein Attack1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Nf3 Nbd7 7 Qc2

D62 Queen's Gambit Declined, Orthodox, Rubinstein Attack1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Nf3 Nbd7 7 Qc2 c5 8 cxd5

D63 Queen's Gambit Declined, Orthodox Defense1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Nf3 Nbd7 7 Rc1

D64 Queen's Gambit Declined, Orthodox, Rubinstein Attack1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Nf3 Nbd7 7 Rc1 c6 8 Qc2

D65 Queen's Gambit Declined, Orthodox, Rubinstein Attack, Main line1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Nf3 Nbd7 7 Rc1 c6 8 Qc2 a6 9 cxd5

D66 Queen's Gambit Declined, Orthodox Defense, Bd3 line1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Nf3 Nbd7 7 Rc1 c6 8 Bd3

D67 Queen's Gambit Declined, Orthodox Defense, Bd3 line1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Nf3 Nbd7 7 Rc1 c6 8 Bd3 dxc4 9 Bxc4 Nd5

D68 Queen's Gambit Declined, Orthodox Defense, Classical1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Nf3 Nbd7 7 Rc1 c6 8 Bd3 dxc4

D69 Queen's Gambit Declined, Orthodox Defense, Classical, 13.de1 d4 d5 2 c4 e6 3 Nc3 Nf6 4 Bg5 Be7 5 e3 O-O 6 Nf3 Nbd7 7 Rc1 c6 8 Bd3 dxc4

D70 Neo-Grunfeld Defense1 d4 Nf6 2 c4 g6 3 f3 d5

D71 Neo-Grunfeld1 d4 Nf6 2 c4 g6 3 g3 d5

D72 Neo-Grunfeld, 5.cd, Main line1 d4 Nf6 2 c4 g6 3 g3 d5 4 Bg2 Bg7 5 cxd5 Nxd5 6 e4 Nb6 7 Ne2

D73 Neo-Grunfeld, 5.Nf31 d4 Nf6 2 c4 g6 3 g3 d5 4 Bg2 Bg7 5 Nf3

D74 Neo-Grunfeld, 6.cd Nxd5, 7.O-O1 d4 Nf6 2 c4 g6 3 g3 d5 4 Bg2 Bg7 5 Nf3 O-O 6 cxd5 Nxd5 7 O-O

D75 Neo-Grunfeld, 6.cd Nxd5, 7.O-O c5, 8.dxc51 d4 Nf6 2 c4 g6 3 g3 d5 4 Bg2 Bg7 5 Nf3 O-O 6 cxd5 Nxd5 7 O-O c5 8 dxc5

D76 Neo-Grunfeld, 6.cd Nxd5, 7.O-O Nb61 d4 Nf6 2 c4 g6 3 g3 d5 4 Bg2 Bg7 5 Nf3 O-O 6 cxd5 Nxd5 7 O-O Nb6

D77 Neo-Grunfeld, 6.O-O1 d4 Nf6 2 c4 g6 3 g3 d5 4 Bg2 Bg7 5 Nf3 O-O 6 O-O

D78 Neo-Grunfeld, 6.O-O c61 d4 Nf6 2 c4 g6 3 g3 d5 4 Bg2 Bg7 5 Nf3 O-O 6 O-O c6

D79 Neo-Grunfeld, 6.O-O, Main line1 d4 Nf6 2 c4 g6 3 g3 d5 4 Bg2 Bg7 5 Nf3 O-O 6 O-O c6 7 cxd5 cxd5

D80 Grunfeld1 d4 Nf6 2 c4 g6 3 Nc3 d5

D81 Grunfeld, Russian Variation1 d4 Nf6 2 c4 g6 3 Nc3 d5 4 Qb3

D82 Grunfeld, 4.Bf41 d4 Nf6 2 c4 g6 3 Nc3 d5 4 Bf4

D83 Grunfeld, Grunfeld Gambit1 d4 Nf6 2 c4 g6 3 Nc3 d5 4 Bf4 Bg7 5 e3 O-O

D84 Grunfeld, Grunfeld Gambit Accepted1 d4 Nf6 2 c4 g6 3 Nc3 d5 4 Bf4 Bg7 5 e3 O-O 6 cxd5 Nxd5 7 Nxd5 Qxd5 8 Bxc7

D85 Grunfeld1 d4 Nf6 2 c4 g6 3 Nc3 d5 4 cxd5 Nxd5

D86 Grunfeld, Exchange1 d4 Nf6 2 c4 g6 3 Nc3 d5 4 cxd5 Nxd5 5 e4 Nxc3 6 bxc3 Bg7 7 Bc4

D87 Grunfeld, Exchange1 d4 Nf6 2 c4 g6 3 Nc3 d5 4 cxd5 Nxd5 5 e4 Nxc3 6 bxc3 Bg7 7 Bc4 O-O 8 Ne2 c5

D88 Grunfeld, Spassky Variation, Main line, 10...cd, 11.cd1 d4 Nf6 2 c4 g6 3 Nc3 d5 4 cxd5 Nxd5 5 e4 Nxc3 6 bxc3 Bg7 7 Bc4 O-O 8 Ne2

D89 Grunfeld1 d4 Nf6 2 c4 g6 3 Nc3 d5 4 cxd5 Nxd5 5 e4 Nxc3 6 bxc3 Bg7 7 Bc4 O-O 8 Ne2

D90 Grunfeld1 d4 Nf6 2 c4 g6 3 Nc3 d5 4 Nf3

D91 Grunfeld, 5.Bg51 d4 Nf6 2 c4 g6 3 Nc3 d5 4 Nf3 Bg7 5 Bg5

D92 Grunfeld, 5.Bf41 d4 Nf6 2 c4 g6 3 Nc3 d5 4 Nf3 Bg7 5 Bf4

D93 Grunfeld, with Bf4 & e31 d4 Nf6 2 c4 g6 3 Nc3 d5 4 Nf3 Bg7 5 Bf4 O-O 6 e3

D94 Grunfeld1 d4 Nf6 2 c4 g6 3 Nc3 d5 4 Nf3 Bg7 5 e3

D95 Grunfeld1 d4 Nf6 2 c4 g6 3 Nc3 d5 4 Nf3 Bg7 5 e3 O-O 6 Qb3

D96 Grunfeld, Russian Variation1 d4 Nf6 2 c4 g6 3 Nc3 d5 4 Nf3 Bg7 5 Qb3

D97 Grunfeld, Russian1 d4 Nf6 2 c4 g6 3 Nc3 d5 4 Nf3 Bg7 5 Qb3 dxc4 6 Qxc4 O-O 7 e4

D98 Grunfeld, Russian1 d4 Nf6 2 c4 g6 3 Nc3 d5 4 Nf3 Bg7 5 Qb3 dxc4 6 Qxc4 O-O 7 e4 Bg4

D99 Grunfeld Defense, Smyslov1 d4 Nf6 2 c4 g6 3 Nc3 d5 4 Nf3 Bg7 5 Qb3 dxc4 6 Qxc4 O-O 7 e4 Bg4 8 Be3

E00 Queen's Pawn Game1 d4 Nf6 2 c4 e6

E01 Catalan, Closed1 d4 Nf6 2 c4 e6 3 g3 d5 4 Bg2

E02 Catalan, Open, 5.Qa41 d4 Nf6 2 c4 e6 3 g3 d5 4 Bg2 dxc4 5 Qa4+

E03 Catalan, Open1 d4 Nf6 2 c4 e6 3 g3 d5 4 Bg2 dxc4 5 Qa4+ Nbd7 6 Qxc4

E04 Catalan, Open, 5.Nf31 d4 Nf6 2 c4 e6 3 g3 d5 4 Bg2 dxc4 5 Nf3

E05 Catalan, Open, Classical line1 d4 Nf6 2 c4 e6 3 g3 d5 4 Bg2 dxc4 5 Nf3 Be7

E06 Catalan, Closed, 5.Nf31 d4 Nf6 2 c4 e6 3 g3 d5 4 Bg2 Be7 5 Nf3

E07 Catalan, Closed1 d4 Nf6 2 c4 e6 3 g3 d5 4 Bg2 Be7 5 Nf3 O-O 6 O-O Nbd7

E08 Catalan, Closed1 d4 Nf6 2 c4 e6 3 g3 d5 4 Bg2 Be7 5 Nf3 O-O 6 O-O Nbd7 7 Qc2

E09 Catalan, Closed1 d4 Nf6 2 c4 e6 3 g3 d5 4 Bg2 Be7 5 Nf3 O-O 6 O-O Nbd7 7 Qc2 c6 8 Nbd2

E10 Queen's Pawn Game1 d4 Nf6 2 c4 e6 3 Nf3

E11 Bogo-Indian Defense1 d4 Nf6 2 c4 e6 3 Nf3 Bb4+

E12 Queen's Indian1 d4 Nf6 2 c4 e6 3 Nf3 b6

E13 Queen's Indian, 4.Nc3, Main line1 d4 Nf6 2 c4 e6 3 Nf3 b6 4 Nc3 Bb7 5 Bg5 h6 6 Bh4 Bb4

E14 Queen's Indian1 d4 Nf6 2 c4 e6 3 Nf3 b6 4 e3

E15 Queen's Indian1 d4 Nf6 2 c4 e6 3 Nf3 b6 4 g3

E16 Queen's Indian1 d4 Nf6 2 c4 e6 3 Nf3 b6 4 g3 Bb7 5 Bg2 Bb4+

E17 Queen's Indian1 d4 Nf6 2 c4 e6 3 Nf3 b6 4 g3 Bb7 5 Bg2 Be7

E18 Queen's Indian, Old Main line, 7.Nc31 d4 Nf6 2 c4 e6 3 Nf3 b6 4 g3 Bb7 5 Bg2 Be7 6 O-O O-O 7 Nc3

E19 Queen's Indian, Old Main line, 9.Qxc31 d4 Nf6 2 c4 e6 3 Nf3 b6 4 g3 Bb7 5 Bg2 Be7 6 O-O O-O 7 Nc3 Ne4 8 Qc2 Nxc3

E20 Nimzo-Indian1 d4 Nf6 2 c4 e6 3 Nc3 Bb4

E21 Nimzo-Indian, Three Knights1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 Nf3

E22 Nimzo-Indian, Spielmann Variation1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 Qb3

E23 Nimzo-Indian, Spielmann1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 Qb3 c5 5 dxc5 Nc6

E24 Nimzo-Indian, Samisch1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 a3 Bxc3+ 5 bxc3

E25 Nimzo-Indian, Samisch1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 a3 Bxc3+ 5 bxc3 c5 6 f3 d5 7 cxd5

E26 Nimzo-Indian, Samisch1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 a3 Bxc3+ 5 bxc3 c5 6 e3

E27 Nimzo-Indian, Samisch Variation1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 a3 Bxc3+ 5 bxc3 O-O

E28 Nimzo-Indian, Samisch Variation1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 a3 Bxc3+ 5 bxc3 O-O 6 e3

E29 Nimzo-Indian, Samisch1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 a3 Bxc3+ 5 bxc3 O-O 6 e3 c5 7 Bd3 Nc6

E30 Nimzo-Indian, Leningrad1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 Bg5

E31 Nimzo-Indian, Leningrad, Main line1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 Bg5 h6 5 Bh4 c5 6 d5 d6

E32 Nimzo-Indian, Classical1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 Qc2

E33 Nimzo-Indian, Classical1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 Qc2 Nc6

E34 Nimzo-Indian, Classical, Noa Variation1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 Qc2 d5

E35 Nimzo-Indian, Classical, Noa Variation, 5.cd ed1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 Qc2 d5 5 cxd5 exd5

E36 Nimzo-Indian, Classical1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 Qc2 d5 5 a3

E37 Nimzo-Indian, Classical1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 Qc2 d5 5 a3 Bxc3+ 6 Qxc3 Ne4 7 Qc2

E38 Nimzo-Indian, Classical, 4...c51 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 Qc2 c5

E39 Nimzo-Indian, Classical, Pirc Variation1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 Qc2 c5 5 dxc5 O-O

E40 Nimzo-Indian, 4.e31 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3

E41 Nimzo-Indian1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 c5

E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein)1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 c5 5 Ne2

E43 Nimzo-Indian, Fischer Variation1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 b6

E44 Nimzo-Indian, Fischer Variation, 5.Ne21 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 b6 5 Ne2

E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 b6 5 Ne2 Ba6

E46 Nimzo-Indian1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 O-O

E47 Nimzo-Indian, 4.e3 O-O 5.Bd31 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 O-O 5 Bd3

E48 Nimzo-Indian, 4.e3 O-O 5.Bd3 d51 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 O-O 5 Bd3 d5

E49 Nimzo-Indian, 4.e3, Botvinnik System1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 O-O 5 Bd3 d5 6 a3 Bxc3+ 7 bxc3

E50 Nimzo-Indian, 4.e3 O-O 5.Nf3, without ...d51 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 O-O 5 Nf3

E51 Nimzo-Indian, 4.e31 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 O-O 5 Nf3 d5

E52 Nimzo-Indian, 4.e3, Main line with ...b61 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 O-O 5 Nf3 d5 6 Bd3 b6

E53 Nimzo-Indian, 4.e31 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 O-O 5 Nf3 d5 6 Bd3 c5

E54 Nimzo-Indian, 4.e3, Gligoric System1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 O-O 5 Nf3 d5 6 Bd3 c5 7 O-O dxc4 8 Bxc4

E55 Nimzo-Indian, 4.e3, Gligoric System, Bronstein Variation1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 O-O 5 Nf3 d5 6 Bd3 c5 7 O-O dxc4 8 Bxc4 Nbd7

E56 Nimzo-Indian, 4.e3, Main line with 7...Nc61 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 O-O 5 Nf3 d5 6 Bd3 c5 7 O-O Nc6

E57 Nimzo-Indian, 4.e3, Main line with 8...dc and 9...cd1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 O-O 5 Nf3 d5 6 Bd3 c5 7 O-O Nc6 8 a3 dxc4 9

E58 Nimzo-Indian, 4.e3, Main line with 8...Bxc31 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 O-O 5 Nf3 d5 6 Bd3 c5 7 O-O Nc6 8 a3 Bxc3 9 bxc3

E59 Nimzo-Indian, 4.e3, Main line1 d4 Nf6 2 c4 e6 3 Nc3 Bb4 4 e3 O-O 5 Nf3 d5 6 Bd3 c5 7 O-O Nc6 8 a3 Bxc3 9 bxc3 dxc4 10 Bxc4

E60 King's Indian Defense1 d4 Nf6 2 c4 g6

E61 King's Indian1 d4 Nf6 2 c4 g6 3 Nc3

E62 King's Indian, Fianchetto1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 Nf3 d6 5 g3

E63 King's Indian, Fianchetto, Panno Variation1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 Nf3 d6 5 g3 O-O 6 Bg2 Nc6 7 O-O a6

E64 King's Indian, Fianchetto, Yugoslav System1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 Nf3 d6 5 g3 O-O 6 Bg2 c5

E65 King's Indian, Fianchetto, Yugoslav, 7.O-O1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 Nf3 d6 5 g3 O-O 6 Bg2 c5 7 O-O

E66 King's Indian, Fianchetto, Yugoslav Panno1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 Nf3 d6 5 g3 O-O 6 Bg2 c5 7 O-O Nc6 8 d5

E67 King's Indian, Fianchetto1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 Nf3 d6 5 g3 O-O 6 Bg2 Nbd7

E68 King's Indian, Fianchetto, Classical Variation, 8.e41 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 Nf3 d6 5 g3 O-O 6 Bg2 Nbd7 7 O-O e5 8 e4

E69 King's Indian, Fianchetto, Classical Main line1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 Nf3 d6 5 g3 O-O 6 Bg2 Nbd7 7 O-O e5 8 e4 c6 9 h3

E70 King's Indian1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4

E71 King's Indian, Makagonov System (5.h3)1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 h3

E72 King's Indian1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 g3

E73 King's Indian1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 Be2

E74 King's Indian, Averbakh, 6...c51 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 Be2 O-O 6 Bg5 c5

E75 King's Indian, Averbakh, Main line1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 Be2 O-O 6 Bg5 c5 7 d5 e6

E76 King's Indian, Four Pawns Attack1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 f4

E77 King's Indian1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 f4 O-O 6 Be2

E78 King's Indian, Four Pawns Attack, with Be2 and Nf31 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 f4 O-O 6 Be2 c5 7 Nf3

E79 King's Indian, Four Pawns Attack, Main line1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 f4 O-O 6 Be2 c5 7 Nf3 cxd4 8 Nxd4 Nc6 9 Be3

E80 King's Indian, Samisch Variation1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 f3

E81 King's Indian, Samisch1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 f3 O-O

E82 King's Indian, Samisch, double Fianchetto Variation1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 f3 O-O 6 Be3 b6

E83 King's Indian, Samisch1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 f3 O-O 6 Be3 Nc6

E84 King's Indian, Samisch, Panno Main line1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 f3 O-O 6 Be3 Nc6 7 Nge2 a6 8 Qd2 Rb8

E85 King's Indian, Samisch, Orthodox Variation1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 f3 O-O 6 Be3 e5

E86 King's Indian, Samisch, Orthodox, 7.Nge2 c61 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 f3 O-O 6 Be3 e5 7 Nge2 c6

E87 King's Indian, Samisch, Orthodox1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 f3 O-O 6 Be3 e5 7 d5

E88 King's Indian, Samisch, Orthodox, 7.d5 c61 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 f3 O-O 6 Be3 e5 7 d5 c6

E89 King's Indian, Samisch, Orthodox Main line1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 f3 O-O 6 Be3 e5 7 d5 c6 8 Nge2 cxd5

E90 King's Indian1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 Nf3

E91 King's Indian1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 Nf3 O-O 6 Be2

E92 King's Indian1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 Nf3 O-O 6 Be2 e5

E93 King's Indian, Petrosian System1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 Nf3 O-O 6 Be2 e5 7 d5 Nbd7

E94 King's Indian, Orthodox1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 Nf3 O-O 6 Be2 e5 7 O-O

E95 King's Indian, Orthodox, 7...Nbd7, 8.Re11 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 Nf3 O-O 6 Be2 e5 7 O-O Nbd7 8 Re1

E96 King's Indian, Orthodox, 7...Nbd7, Main line1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 Nf3 O-O 6 Be2 e5 7 O-O Nbd7 8 Re1 c6 9 Bf1 a5

E97 King's Indian1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 Nf3 O-O 6 Be2 e5 7 O-O Nc6

E98 King's Indian, Orthodox, Taimanov, 9.Ne11 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 Nf3 O-O 6 Be2 e5 7 O-O Nc6 8 d5 Ne7 9 Ne1

E99 King's Indian, Orthodox, Taimanov1 d4 Nf6 2 c4 g6 3 Nc3 Bg7 4 e4 d6 5 Nf3 O-O 6 Be2 e5 7 O-O Nc6 8 d5 Ne7 9 Ne1 Nd7 10 f3 f5