ECO codes courtesy of the ICC

The contents of this page was copied from the ICC and is reproduced here for your convenience.

This file contains a complete listing of all 500 Encyclopedia of Chess Openings codes, A00 to E99.
The list is courtesy of Lasker27y.
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A00      Irregular Openings
1. g3      Benko Opening
1. b4      Sokolsky (Polish Opening)
1. Others 

A01      Nimzo-Larsen Attack
1. b3

A02      Bird's Opening
1. f4

A03
1. f4 d5

A04      Reti Opening
1. Nf3

A05      Reti Opening with 1...Nf6
1. Nf3 Nf6

A06      Reti Opening with 1...d5
1. Nf3 d5

A07      Reti Opening, Barcza System
1. Nf3 d5   2. g3

A08
1. Nf3 d5   2. g3 c5   3. Bg2

A09      Reti Opening
1. Nf3 d5   2. c4


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A1   English Opening

A10      English Opening
1. c4

A11      English Opening, systems with 1...e6
1 c4 c6

A12      (Reti Opening)
1 c4 c6   2. Nf3 d5   3. b3

A13      English Opening, systems with 1...e6
1 c4 e6

A14      (Reti Opening)
1 c4 e6   2. Nf3 d5   3. g3 Nf6   4. Bg2 Be7   5. O-O

A15      English Opening, systems with 1...Nf6
1 c4 Nf6

A16
1 c4 Nf6   2. Nc3

A17      English Opening, Anglo-Indian
1 c4 Nf6   2. Nc3 e6

A18      English Opening, Flohr-Mikenas Variation
  1 c4 Nf6   2. Nc3 e6   3. e4

A19
1 c4 Nf6   2. Nc3 e6   3. e4 c5


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A2  English Opening with 1...e5 (King's English or Reversed Sicilian)

A20      English Opening, Reversed Sicilian
1. c4 e5

A21
1. c4 e5   2. Nc3

A22
1. c4 e5   2. Nc3 Nf6

A23
1. c4 e5   2. Nc3 Nf6   3. g3 c6

A24
1. c4 e5   2. Nc3 Nf6   3. g3 g6

A25      English Opening, Reversed Sicilian, Closed Systems
1. c4 e5   2. Nc3 Nc6

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

A27
1. c4 e5   2. Nc3 Nc6   3. Nf3

A28      English Opening, Reversed Sicilian, Four Knights' Variation
1. c4 e5   2. Nc3 Nc6   3. Nf3 Nf6

A29
1. c4 e5   2. Nc3 Nc6   3. Nf3 Nf6 4. g3


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A3    Symmetrical English

A30      Symmetrical English
1. c4 c5

A31
1. c4 c5   2. Nf3 Nf6   3. d4

A32
1. c4 c5   2. Nf3 Nf6   3. d4 cd4   4. Nd4 e6

A33
1. c4 c5   2. Nf3 Nf6   3. d4 cd4   4. Nd4 e6   5. Nc3 Nc6

A34
1. c4 c5   2. Nc3

A35      Symmetrical English, Closed systems
1. c4 c5   2. Nc3 Nc6

A36
1. c4 c5   2. Nc3 Nc6   3. g3

A37
1. c4 c5   2. Nc3 Nc6   3. g3 g6   4. Bg2 Bg7   5. Nf3

A38
1. c4 c5   2. Nc3 Nc6   3. g3 g6   4. Bg2 Bg7   5. Nf3 Nf6

A39      English Opening, Maroczy Bind
1. c4 c5   2. Nc3 Nc6   3. g3 g6   4. Bg2 Bg7   5. Nf3 Nf6  
6. O-O O-O   7. d4


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A4       Queen Pawn games

A40      Queen Pawn games
1. d4

A41      Queen Pawn games, systems with 1...d6
1. d4 d6

A42      Modern Defence, Averbakh Variation
1. d4 d6   2. c4 g6   3. Nc3 Bg7   4. e4

A43      Benoni
1. d4 c5

A44      Old Benoni (...g6) or Czech Benoni (...Be7)
1. d4 c5   2. d5 e5

A45      Indian systems
1. d4 Nf6

A46      Indian systems with 2. Nf3
1. d4 Nf6   2. Nf3

A47
1. d4 Nf6   2. Nf3 b6

A48
1. d4 Nf6   2. Nf3 g6

A49
1. d4 Nf6   2. Nf3 g6   3. g3


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A5    Indian systems

A50      Indian systems with 2. c4
1. d4 Nf6   2. c4

A51      Budapest Gambit
1. d4 Nf6   2. c4 e5

A52      Budapest Gambit, main line accepted
1. d4 Nf6   2. c4 e5   3. de5 Ng4

A53      Old Indian Defence
1. d4 Nf6   2. c4 d6

A54
1. d4 Nf6   2. c4 d6   3. Nc3 e5   4. Nf3

A55
1. d4 Nf6   2. c4 d6   3. Nc3 e5   4. Nf3 Nbd7    5. e4

A56      Benoni Defence
1. d4 Nf6   2. c4 c5

A57      Benko Gambit
1. d4 Nf6   2. c4 c5   3. d5 b5

A58      Benko Gambit Accepted
1. d4 Nf6   2. c4 c5   3. d5 b5   4. cb5 a6   5. ba6

A59      Benko Gambit Accepted, Classical Variation
1. d4 Nf6   2. c4 c5   3. d5 b5   4. cb5 a6   5. ba6 Ba6   6. Nc3 d6
7. e4


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A6 - A7    Modern Benoni

A60      Modern Benoni
1. d4 Nf6   2. c4 c5   3. d5 e6

A61
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. Nf3 g6

A62      Modern Benoni, Fianchetto Variation
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. Nf3 g6
7. g3 Bg7   8. Bg2 O-O

A63
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. Nf3 g6
7. g3 Bg7   8. Bg2 O-O   9. O-O Nbd7

A64
1. d4 Nf6   2. c4 c5   3. d5 e6 4. Nc3 ed5 5. cd5 d6 6. Nf3 g6
7. g3 Bg7   8. Bg2 O-O   9. O-O Nbd7   10. Nd2 a6    11. a4 Re8


A65      Modern Benoni, Main Variation
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. e4

A66      Modern Benoni, Four Pawns (Mikenas) Attack
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. e4 g6
7. f4

A67      Modern Benoni, Bishop Check Variation (Taimanov)
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. e4 g6
7. f4 Bg7   8. Bb5

A68      Modern Benoni, Four Pawns (Mikenas) Attack
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. e4 g6
7. f4 Bg7   8. Nf3 O-O

A69
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. e4 g6
7. f4 Bg7   8. Nf3 O-O   9. Be2 Re8

A70      Modern Benoni, Classical variation
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. e4 g6
7. Nf3

A71
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. e4 g6
7. Nf3 Bg7 8. Be2

A72
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. e4 g6
7. Nf3 Bg7   8. Be2 O-O

A73
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. e4 g6
7. Nf3 Bg7   8. Be2 O-O   9. O-O

A74
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. e4 g6
7. Nf3 Bg7   8. Be2 O-O   9. O-O a6

A75
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. e4 g6
7. Nf3 Bg7   8. Be2 O-O   9. O-O a6   10. a4 Bg4

A76
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. e4 g6
7. Nf3 Bg7   8. Be2 O-O   9. O-O Re8

A77
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. e4 g6
7. Nf3 Bg7   8. Be2 O-O   9. O-O Re8   10. Nd2

A78
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. e4 g6
7. Nf3 Bg7   8. Be2 O-O   9. O-O Re8   10. Nd2 Na6

A79
1. d4 Nf6   2. c4 c5   3. d5 e6   4. Nc3 ed5   5. cd5 d6   6. e4 g6
7. Nf3 Bg7   8. Be2 O-O   9. O-O Re8    10. Nd2 Na6    11. f3 Nc7


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A8 - A9   Dutch Defence

A80      Dutch Defence
1. d4 f5

A81
1. d4 f5   2. g3

A82      Dutch Defence, Staunton Gambit
1. d4 f5   2. e4

A83
1. d4 f5   2. e4 fe4   3. Nc3 Nf6   4. Bg5

A84      Dutch Defence
1. d4 f5  2. c4

A85
1. d4 f5 2. c4 Nf6 3. Nc3

A86
1. d4 f5 2. c4 Nf6 3. g3

A87      Dutch Defence, Leningrad Variation
1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3

A88
1. d4 f5   2. c4 Nf6   3. g3 g6   4. Bg2 Bg7   5. Nf3 O-O   6. O-O d6
7. Nc3 c6

A89
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 Defence, Classical Variation
1. d4 f5   2. c4 Nf6   3. g3 e6   4. Bg2

A91
1. d4 f5   2. c4 Nf6   3. g3 e6   4. Bg2 Be7

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


A93      Dutch Defence, Stonewall Variation      
1. d4 f5   2. c4 Nf6   3. g3 e6   4. Bg2 Be7   5. Nf3 O-O   6. O-O d5
7. b3

A94
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
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 Defence, Iljin-Zhenevsky Variation
1. d4 f5   2. c4 Nf6   3. g3 e6   4. Bg2 Be7   5. Nf3 O-O   6. O-O d6

A97
1. d4 f5   2. c4 Nf6   3. g3 e6   4. Bg2 Be7   5. Nf3 O-O   6. O-O d6
7. Nc3 Qe8

A98
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
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



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B0   King Pawn games, unsymmetrical

B00      King Pawn games, inc. Nizowitch Defence
1. e4,   1....Nc6

B01      Centre Counter Defence (Scandanavian)
1. e4 d5

B02      Alekhine's Defence
1. e4 Nf6

B03
1. e4 Nf6   2. e5 Nd5   3. d4

B04      Alekhine's Defence, Classical Variation
1. e4 Nf6   2. e5 Nd5   3. d4 d6   4. Nf3

B05
1. e4 Nf6   2. e5 Nd5   3. d4 d6   4. Nf3 Bg4

B06      Modern Defence
1. e4 g6

B07      Pirc (Robatsch) Defence
1. e4 d6   2. d4 Nf6

B08      Pirc Defence, Classical Variation
1. e4 d6   2. d4 Nf6   3. Nc3 g6   4. Nf3

B09      Pirc Defence, Austrian Attack
1. e4 d6   2. d4 Nf6   3. Nc3 g6   4. f4

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B1   Caro-Kann

B10      Caro-Kann Defence
1. e4 c6

B11      Caro-Kann Defence, Two Knights' Variation
1. e4 c6   2. Nf3 d5   3. Nc3 Bg4

B12      Caro-Kann Defence
1. e4 c6   2. d4

B13      Caro-Kann Defence, Exchange Variation
1. e4 c6   2. d4 d5   3. ed5 cd5

B14      Caro-Kann Defence, Panov-Botvinnik attack
1. e4 c6   2. d4 d5   3. ed5 cd5   4. c4 Nf6   5. Nc3

B15      Caro-Kann Defence
1. e4 c6   2. d4 d5   3. Nc3

B16      Caro-Kann Defence, Bronstein-Larsen variation
1. e4 c6   2. d4 d5   3. Nc3 de4   4. Ne4 Nf6   5. Nf6 gf6

B17      Caro-Kann Defence, with 4...Nd7
1. e4 c6   2. d4 d5   3. Nc3 de4   4. Ne4 Nd7

B18      Caro-Kann Defence, classical variation
1. e4 c6   2. d4 d5   3. Nc3 de4   4. Ne4 Bf5

B19
1. e4 c6   2. d4 d5   3. Nc3 de4   4. Ne4 Bf5   5. Ng3 Bg6   6. h4 h6
7. Nf3 Nd7


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B2 - B9   Sicilian Defence

B20      Sicilian Defence
1. e4 c5

B21      Sicilian Defence
1. e4 c5:
- 2. f4    Grand Prix (Vincken) Attack
- 2. d4    Morra Gambit

B22      Sicilian Defence, Alapin Variation
1. e4 c5   2.c3

B23      Sicilian Defence, Closed Variation
1. e4 c5   2. Nc3

B24
1. e4 c5   2. Nc3 Nc6   3. g3

B25
1. e4 c5   2. Nc3 Nc6   3. g3 g6   4. Bg2 Bg7   5. d3 d6

B26
1. e4 c5   2. Nc3 Nc6   3. g3 g6   4. Bg2 Bg7   5. d3 d6   6. Be3

B27      Sicilian Defence
1. e4 c5   2. Nf3

B28      Sicilian Defence, O'Kelly Variation
1. e4 c5   2. Nf3 a6

B29      Sicilian Defence, Nimzovitch Variation
1. e4 c5   2. Nf3 Nf6


B30      Sicilian Defence with 2...Nc6
1. e4 c5   2. Nf3 Nc6

B31      Sicilian Defence, Rossolimo Variation
1. e4 c5   2. Nf3 Nc6   3. Bb5 g6

B32      Sicilian Defence
1. e4 c5   2. Nf3 Nc6   3. d4

B33
1. e4 c5   2. Nf3 Nc6   3. d4 cd4   4. Nd4

B34      Sicilian Defence, Accelerated Dragon Variation
1. e4 c5   2. Nf3 Nc6   3. d4 cd4   4. Nd4 g6

B35
1. e4 c5   2. Nf3 Nc6   3. d4 cd4   4. Nd4 g6   5. Nc3 Bg7  
6. Be3 Nf6   7. Bc4

B36      Sicilian Defence, Accelerated Dragon Variation, Maroczy Bind
1. e4 c5   2. Nf3 Nc6   3. d4 cd4   4. Nd4 g6   5. c4

B37
1. e4 c5   2. Nf3 Nc6   3. d4 cd4   4. Nd4 g6   5. c4 Bg7

B38
1. e4 c5   2. Nf3 Nc6   3. d4 cd4   4. Nd4 g6   5. c4 Bg7   6. Be3

B39
1. e4 c5   2. Nf3 Nc6   3. d4 cd4   4. Nd4 g6   5. c4 Bg7  
6. Be3 Nf6   7. Nc3 Ng4

B40      Sicilian Defence with 2...e6
1. e4 c5   2. Nf3 e6

B41      Sicilian Defence, Kan Variation
1. e4 c5   2. Nf3 e6   3. d4 cd4   4. Nd4 a6

B42
1. e4 c5   2. Nf3 e6   3. d4 cd4   4. Nd4 a6   5. Bd3

B43
1. e4 c5   2. Nf3 e6   3. d4 cd4   4. Nd4 a6   5. Nc3

B44      Sicilian Defence, Taimanov Variation
1. e4 c5   2. Nf3 e6   3. d4 cd4   4. Nd4 Nc6

B45
1. e4 c5   2. Nf3 e6   3. d4 cd4   4. Nd4 Nc6   5. Nc3

B46
1. e4 c5   2. Nf3 e6   3. d4 cd4   4. Nd4 Nc6   5. Nc3 a6

B47
1. e4 c5   2. Nf3 e6   3. d4 cd4   4. Nd4 Nc6   5. Nc3 Qc7

B48
1. e4 c5   2. Nf3 e6   3. d4 cd4   4. Nd4 Nc6   5. Nc3 Qc7   6. Be3

B49
1. e4 c5   2. Nf3 e6   3. d4 cd4   4. Nd4 Nc6   5. Nc3 Qc7  
6. Be3 a6   7. Be2


B50      Sicilian Defence with 2...d6
1. e4 c5   2. Nf3 d6

B51      Sicilian Defence, Sicilian Check Variation
1. e4 c5   2. Nf3 d6   3. Bb5

B52
1. e4 c5   2. Nf3 d6   3. Bb5 Bd7

B53      Sicilian Defence, Chekhover Variation
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Qd4

B54      Sicilian Defence
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4

B55
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. f3 e5   6. Bb5

B56
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3

B57      Sicilian Defence, Sozin Variation
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 Nc6   6. Bc4

B58      Sicilian Defence
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 Nc6   6. Be2

B59      Sicilian Defence, Boleslavsky Variation
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 Nc6  
6. Be2 e5   7. Nb3


B60      Sicilian Defence, Richter-Rauser Attack
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 Nc6   6. Bg5

B61
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 Nc6  
6. Bg5 Bd7   7. Qd2

B62
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 Nc6  
6. Bg5 e6  

B63
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 Nc6  
6. Bg5 e6   7. Qd2

B64
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 Nc6  
6. Bg5 e6   7. Qd2 Be7   8.O-O-O O-O   9. f4

B65
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 Nc6  
6. Bg5 e6   7. Qd2 Be7   8.O-O-O O-O   9. f4 Nd4    10. Qd4

B66
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 Nc6  
6. Bg5 e6   7. Qd2 a6

B67
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 Nc6  
6. Bg5 e6   7. Qd2 a6   8. O-O-O Bd7

B68
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 Nc6  
6. Bg5 e6   7. Qd2 a6   8. O-O-O Bd7   9. f4 Be7

B69
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 Nc6  
6. Bg5 e6   7. Qd2 a6   8. O-O-O Bd7   9. f4 Be7    10. Nf3 b5  
11. Bf6


B70      Sicilian Defence, Dragon Variation
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 g6

B71      Sicilian Defence, Dragon Variation, Levenfish Variation
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 g6   6. f4

B72      Sicilian Defence, Dragon Variation
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 g6   6. Be3

B73      Sicilian Defence, Dragon Variation, Classical System
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 g6  
6. Be3 Bg7   7. Be2 Nc6   8. O-O

B74
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 g6  
6. Be3 Bg7   7. Be2 Nc6   8. O-O O-O   9. Nb3

B75      Sicilian Defence, Dragon Variation, Yugoslav Attack
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 g6  
6. Be3 Bg7   7. f3

B76
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 g6  
6. Be3 Bg7   7. f3 O-O

B77
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 g6  
6. Be3 Bg7   7. f3 O-O 8. Qd2 Nc6   9. Bc4

B78
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 g6  
6. Be3 Bg7   7. f3 O-O   8.Qd2 Nc6   9. Bc4 Bd7    10. O-O-O

B79
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 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


B8
1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 e6
Sicilian Defence, Scheveningen Variation

B80      Sicilian Defence, Scheveningen Variation
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 e6

B81      Sicilian Defence, Scheveningen Variation, Keres Attack
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 e6   6. g4

B82      Sicilian Defence, Scheveningen Variation
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 e6   6. f4

B83      Sicilian Defence, Scheveningen Variation, Classical System
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 e6   6. Be2

B84
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 e6  
6. Be2 a6

B85
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 e6
6. Be2 a6   7. O-O Qc7   8. f4 Nc6

B86      Sicilian Defence, Scheveningen Variation
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 e6 6. Bc4

B87      Sicilian Defence, Najdorf Variation
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 e6
6. Bc4 a6   7. Bb3 b5

B88
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 e6 6. Bc4 Nc6

B89
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 e6  
6. Bc4 Nc6   7. Be3


B9
1. e4 c5 2. Nf3 d6 3. d4 cd4 4. Nd4 Nf6 5. Nc3 a6
Sicilian Defence, Najforf Variation

B90      Sicilian Defence, Najdorf Variation
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 a6

B91
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 a6   6. g3

B92
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 a6   6. Be2

B93
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 a6   6. f4

B94
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 a6   6. Bg5

B95
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 a6  
6. Bg5 e6

B96
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 a6
6. Bg5 e6   7. f4

B97      Sicilian Defence, Najdorf Variation, Poisoned Pawn Variation
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 a6
6. Bg5 e6   7. f4 Qb6

B98      Sicilian Defence, Najdorf Variation
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 a6
6. Bg5 e6   7. f4 Be7

B99
1. e4 c5   2. Nf3 d6   3. d4 cd4   4. Nd4 Nf6   5. Nc3 a6
6. Bg5 e6   7. f4 Be7   8. Qf3 Qc7   9. O-O-O Nbd7


---------------------------------------------------------------------
C0 - C1   French Defence

C00      French Defence
1. e4 e6

C01      French Defence, Exchange Variation
1. e4 e6   2. d4 d5   3. ed5 ed5

C02      French Defence, Advanced Variation
1. e4 e6   2. d4 d5   3. e5

C03      French Defence, Tarrasch Variation
1. e4 e6   2. d4 d5   3. Nd2

C04      French Defence, Tarrasch Variation, Guimard system
1. e4 e6   2. d4 d5   3. Nd2 Nc6   4. Ngf3 Nf6

C05      French Defence, Tarrasch Variation
1. e4 e6   2. d4 d5   3. Nd2 Nf6

C06
1. e4 e6   2. d4 d5   3. Nd2 Nf6   4. e5 Nfd7   5. Bd3 c5
6. c3 Nc6   7. Ne2 cd4   8. cd4

C07
1. e4 e6   2. d4 d5   3. Nd2 c5

C08
1. e4 e6   2. d4 d5   3. Nd2 c5   4. ed5 ed5

C09
1. e4 e6   2. d4 d5   3. Nd2 c5   4. ed5 ed5   5. Ngf3 Nc6

C1
1. e4 e6 2. d4 d5 3. Nc3
French Defence with 3. Nc3

C10      French Defence
1. e4 e6   2. d4 d5   3. Nc3

C11      French Defence, Classical Variation
1. e4 e6   2. d4 d5   3. Nc3 Nf6

C12      French Defence, MacCutcheon Variation
1. e4 e6   2. d4 d5   3. Nc3 Nf6   4. Bg5 Bb4

C13      French Defence, Classical Variation
1. e4 e6   2. d4 d5   3. Nc3 Nf6   4. Bg5 Be7

C14
1. e4 e6   2. d4 d5   3. Nc3 Nf6   4. Bg5 Be7   5. e5 Nfd7
6. Be7 Qe7

C15      French Defence, Winawer Variation
1. e4 e6   2. d4 d5   3. Nc3 Bb4


C16
1. e4 e6   2. d4 d5   3. Nc3 Bb4   4. e5

C17
1. e4 e6   2. d4 d5   3. Nc3 Bb4   4. e5 c5

C18
1. e4 e6   2. d4 d5   3. Nc3 Bb4   4. e5 c5   5. a3 Bc3 6. bc3

C19
1. e4 e6   2. d4 d5   3. Nc3 Bb4   4. e5 c5   5. a3 Bc3   6. bc3 Ne7


---------------------------------------------------------------------
C2   Double King Pawn games

C20      Double King Pawn games
1. e4 e5

C21      Centre Game & Danish Gambit
1. e4 e5   2. d4 ed4

C22      Centre Game
1. e4 e5   2. d4 ed4   3. Qd4 Nc6

C23      Bishop's Opening
1. e4 e5    2. Bc4

C24
1. e4 e5    2. Bc4 Nf6

C25      Vienna Game
1. e4 e5   2. Nc3

C26
1. e4 e5   2. Nc3 Nf6

C27      Vienna Game, Frankenstein-Dracula Variation
1. e4 e5   2. Nc3 Nf6   3. Bc4 Ne4

C28      Vienna Game
1. e4 e5   2. Nc3 Nf6   3. Bc4 Nc6

C29      Vienna Gambit
1. e4 e5   2. Nc3 Nf6   3. f4 d5


---------------------------------------------------------------------
C3   King's Gambit

C30      King's Gambit
1. e4 e5   2. f4

C31
1. e4 e5   2. f4 d5

C32      King's Gambit, Falkbeer Counter-Gambit
1. e4 e5   2. f4 d5   3. ed5 e4   4. d3 Nf6

C33      King's Gambit Accepted
1. e4 e5   2. f4 ef4

C34      King's Knight's Gambit
1. e4 e5   2. f4 ef4   3. Nf3

C35      King's Gambit, Cunningham Variation
1. e4 e5   2. f4 ef4   3. Nf3 Be7

C36      King's Gambit, Modern Variation
1. e4 e5   2. f4 ef4   3. Nf3 d5

C37      King's Gambit
1. e4 e5   2. f4 ef4   3. Nf3 g5

C38      King's Gambit, Hanstein Variation
1. e4 e5   2. f4 ef4   3. Nf3 g5   4. Bc4 Bg7

C39      King's Gambit, Kieseritsky Variation
1. e4 e5   2. f4 ef4   3. Nf3 g5   4. h4


---------------------------------------------------------------------
C4   Double King Pawn games with 2. Nf3

C40      Double King Pawn games
1. e4 e5   2. Nf3

C41      Philidor Defence
1. e4 e5   2. Nf3 d6

C42      Petroff Defence
1. e4 e5   2. Nf3 Nf6

C43      Petroff Defence, Steinitz Variation
1. e4 e5   2. Nf3 Nf6   3. d4

C44      Double King Pawn games
1. e4 e5   2. Nf3 Nc6

C45      Scotch Game
1. e4 e5   2. Nf3 Nc6   3. d4 ed4   4. Nd4

C46      Three Knights' Game
1. e4 e5   2. Nf3 Nc6   3. Nc3

C47      Scotch Four Knights'
1. e4 e5   2. Nf3 Nc6   3. Nc3 Nf6   4. d4

C48      Four Knights' Game
1. e4 e5   2. Nf3 Nc6   3. Nc3 Nf6   4. Bb5

C49
1. e4 e5   2. Nf3 Nc6   3. Nc3 Nf6   4. Bb5 Bb4


---------------------------------------------------------------------
C5   Italian Game

C50      Italian Game
1. e4 e5   2. Nf3 Nc6   3. Bc4

C51      Evans' Gambit
1. e4 e5   2. Nf3 Nc6   3. Bc4 Bc5   4. b4

C52
1. e4 e5   2. Nf3 Nc6   3. Bc4 Bc5   4. b4 Bb4    5. c3 Ba5

C53      Giuoco Piano
1. e4 e5   2. Nf3 Nc6   3. Bc4 Bc5   4. c3

C54
1. e4 e5   2. Nf3 Nc6   3. Bc4 Bc5   4. c3 Nf6    5. d4 ed4   6. cd4

C55      Two Knights' Defence
1. e4 e5   2. Nf3 Nc6   3. Bc4 Nf6

C56
1. e4 e5   2. Nf3 Nc6   3. Bc4 Nf6   4. d4 ed4    5. O-O Ne4

C57
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5

C58      Two Knights' Defence, main line gambit
1. e4 e5   2. Nf3 Nc6   3. Bc4 Nf6   4. Ng5 d5    5. ed5 Na5

C59
1. e4 e5   2. Nf3 Nc6   3. Bc4 Nf6   4. Ng5 d5    5. ed5 Na5
6. Bb5 c6   7. dc6 bc6   8. Be2 h6


---------------------------------------------------------------------
C6 - C9   Ruy Lopez (Spanish Game)

C60      Ruy Lopez Opening (Spanish Game)
1. e4 e5   2. Nf3 Nc6   3. Bb5

C61      Ruy Lopez, Bird's Defence
1. e4 e5   2. Nf3 Nc6   3. Bb5 Nd4

C62      Ruy Lopez, Steinitz Defence
1. e4 e5   2. Nf3 Nc6   3. Bb5 d6

C63      Ruy Lopez, Schliemann Gambit
1. e4 e5   2. Nf3 Nc6   3. Bb5 f5

C64      Ruy Lopez, Classical Defence
1. e4 e5   2. Nf3 Nc6   3. Bb5 Bc5

C65      Ruy Lopez, Berlin Defence
1. e4 e5   2. Nf3 Nc6   3. Bb5 Nf6

C66     
1. e4 e5   2. Nf3 Nc6   3. Bb5 Nf6   4. O-O d6

C67
1. e4 e5   2. Nf3 Nc6   3. Bb5 Nf6   4. O-O Ne4

C68      Ruy Lopez, Exchange Variation
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Bc6

C69
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Bc6 dc6    5. O-O

C70      Ruy Lopez, Morphy Defence
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4

C71      Ruy Lopez, Modern Steinitz Variation
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 d6

C72
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 d6   5. O-O

C73
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 d6   5. Bc6 bc6   6. d4

C74
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 d6   5. c3

C75
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 d6   5. c3 Bd7

C76
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 d6   5. c3 Bd7   6. d4 g6

C77      Ruy Lopez, Morphy Defence
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 Nf6

C78
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 Nf6    5. O-O

C79      Ruy Lopez, Modern Steinitz Variation
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 Nf6    5. O-O d6

C80      Ruy Lopez, Open Morphy Variation
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 Nf6    5. O-O Ne4

C81
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 Nf6    5. O-O Ne4
6. d4 b5   7. Bb3 d5   8. de5 Be6   9. Qe2

C82
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 Nf6    5. O-O Ne4
6. d4 b5   7. Bb3 d5   8. de5 Be6   9. c3

C83
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 Nf6    5. O-O Ne4
6. d4 b5   7. Bb3 d5   8. de5 Be6   9. c3 Be7

C84      Ruy Lopez, Closed Morphy Defence
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 Nf6    5. O-O Be7

C85      Ruy Lopez, Delayed Exchange Variation
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 Nf6    5. O-O Be7
6. Bc6 dc6

C86      Ruy Lopez, Worral Attack
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 Nf6    5. O-O Be7   6. Qe2

C87      Ruy Lopez, Closed Morphy Defence
1. e4 e5   2. Nf3 Nc6   3. Bb5 a6   4. Ba4 Nf6    5. O-O Be7  
6. Re1 d6

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

C89      Ruy Lopez, Marshall Gambit
1. 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, Closed Morphy Defence
1. 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
1. 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
1. 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
1. 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 Morphy Defence, Breyer Variation
1. 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
1. 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, Closed Morphy Defence, Tchigorin Variation
1. 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
1. 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
1. 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
1. 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 cd4   13. cd4

---------------------------------------------------------------------
D0   Double Queen Pawn games

D00      Double Queen Pawn games
1. d4 d5

D01      (Richter-)Veresov System
1. d4 d5   2. Nc3 Nf6   3. Bg5

D02      Double Queen Pawn games
1. d4 d5   2. Nf3

D03      Double Queen Pawn Games
1. d4 d5   2. Nf3 Nf6   3. Bg5

D04      Colle System
1. d4 d5   2. Nf3 Nf6   3. e3

D05
1. d4 d5   2. Nf3 Nf6   3. e3 e6

D06      Queen's Gambit
1. d4 d5   2. c4

D07      Queen's Gambit, Tchigorin defence
1. d4 d5   2. c4 Nc6

D08      Queen's Gambit, Albin Counter-Gambit
1. d4 d5   2. c4 e5

D09
1. d4 d5   2. c4 e5   3. de5 d4   4. Nf3 Nc6   5. g3


---------------------------------------------------------------------
D1   Queen's Gambit Declined, Slav Defence

D10      Queen's Gambit Declined, Slav Defence
1. d4 d5   2. c4 c6

D11     
1. d4 d5   2. c4 c6   3. Nf3

D12

1. d4 d5   2. c4 c6   3. Nf3 Nf6   4. e3 Bf5

D13      Queen's Gambit Declined, Slav Defence, Exchange Variation
1. d4 d5   2. c4 c6   3. Nf3 Nf6   4. cd5 cd5

D14
1. d4 d5   2. c4 c6   3. Nf3 Nf6   4. cd5 cd5   5. Bf4 Bf5

D15      Queen's Gambit Declined, Slav Defence
1. d4 d5   2. c4 c6   3. Nf3 Nf6   4. Nc3

D16      Queen's Gambit Declined, Slav Defence, Dutch Variation
1. d4 d5   2. c4 c6   3. Nf3 Nf6   4. Nc3 dc4   5. a4

D17
1. d4 d5   2. c4 c6   3. Nf3 Nf6   4. Nc3 dc4   5. a4 Bf5

D18
1. d4 d5   2. c4 c6   3. Nf3 Nf6   4. Nc3 dc4   5. a4 Bf5   6. e3

D19
1. d4 d5   2. c4 c6   3. Nf3 Nf6   4. Nc3 dc4   5. a4 Bf5   6. e3 e6
7. Bc4 Bb4   8. O-O O-O   9. Qe2


---------------------------------------------------------------------
D2   Queen's Gambit Accepted

D20      Queen's Gambit Accepted
1. d4 d5   2. c4 dc4

D21
1. d4 d5   2. c4 dc4   3. Nf3

D22      Queen's Gambit Accepted, Alekhine Variation
1. d4 d5   2. c4 dc4   3. Nf3 a6   4. e3

D23      Queen's Gambit Accepted
1. d4 d5   2. c4 dc4   3. Nf3 Nf6

D24
1. d4 d5   2. c4 dc4   3. Nf3 Nf6   4. Nc3

D25
1. d4 d5   2. c4 dc4   3. Nf3 Nf6   4. e3

D26
1. d4 d5   2. c4 dc4   3. Nf3 Nf6   4. e3 e6

D27
1. d4 d5   2. c4 dc4   3. Nf3 Nf6   4. e3 e6   5. Bc4 c5   6. O-O a6

D28
1. d4 d5   2. c4 dc4   3. Nf3 Nf6   4. e3 e6   5. Bc4 c5   6. O-O a6
7. Qe2

D29
1. d4 d5   2. c4 dc4   3. Nf3 Nf6   4. e3 e6   5. Bc4 c5   6. O-O a6
7. Qe2 b5   8. Bb3 Bb7


---------------------------------------------------------------------
D3   Queen's Gambit Declined, Orthodox Defence

D30      Queen's Gambit Declined, Orthodox Defence
1. d4 d5   2. c4 e6

D31
1. d4 d5   2. c4 e6   3.   Nc3

D32      Queen's Gambit Declined, Tarrasch Defence
1. d4 d5   2. c4 e6   3. Nc3 c5

D33      Queen's Gambit Declined, Tarrasch Defence,
         Schlechter-Rubinstein system
1. d4 d5   2. c4 e6   3. Nc3 c5   4. cd5 ed5   5. Nf3 Nc6   6. g3

D34
1. d4 d5   2. c4 e6   3. Nc3 c5   4. cd5 ed5   5. Nf3 Nc6   6. g3 Nf6
7. Bg2 Be7

D35      Queen's Gambit Declined, Orthodox Defence
1. d4 d5   2. c4 e6   3. Nc3 Nf6

D36      Queen's Gambit Declined, Exchange Variation
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. cd5 ed5   5. Bg5 c6 6. Qc2

D37      Queen's Gambit Declined, Orthodox Defence
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Nf3

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

D39      Queen's Gambit Declined, Vienna Variation
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Nf3 Bb4   5. Bg5 dc4


---------------------------------------------------------------------
D4   Queen's Gambit Declined, Orthodox Defence with 4. Nf3

D40      Queen's Gambit Declined, Semi-Tarrasch (Improved Tarrasch)
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Nf3 c5

D41
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Nf3 c5   5. cd5

D42
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Nf3 c5   5. cd5 Nd5
6. e3 Nc6   7. Bd3

D43      Queen's Gambit Declined, Semi-Slav Defence
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Nf3 c6

D44      Queen's Gambit Declined, Semi-Slav Defence, Anti-Meran System
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Nf3 c6   5. Bg5 dc4

D45      Queen's Gambit Declined, Semi-Slav Defence
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Nf3 c6   5. e3

D46
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Nf3 c6   5. e3 Nbd7 6. Bd3

D47      Queen's Gambit Declined, Semi-Slav Defence, Meran Variation
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Nf3 c6   5. e3 Nbd7  
6. Bd3 dc4 7. Bc4

D48
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Nf3 c6   5. e3 Nbd7  
6. Bd3 dc4   7. Bc4 b5 8. Bd3 a6

D49
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Nf3 c6   5. e3 Nbd7
6. Bd3 dc4   7. Bc4 b5   8. Bd3 a6   9. e4 c5    10. e5 cd4   11. Nb5


---------------------------------------------------------------------
D5   Queen's Gambit Declined, Orthodox Defence with 4. Bg5

D50      Queen's Gambit Declined, Orthodox Defence
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Bg5

D51
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Bg5 Nbd7

D52
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Bg5 Nbd7    5. e3 c6   6. Nf3

D53
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Bg5 Be7

D54
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Bg5 Be7   5. e3 O-O   6. Rc1

D55
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Bg5 Be7   5. e3 O-O   6. Nf3

D56
1. 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, Orthodox Defence, Lasker System
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Bg5 Be7   5. e3 O-O   6. Nf3 h6
7. Bh4 Ne4   8. Be7 Qe7   9. cd5 Nc3   10. bc3

D58      Queen's Gambit Declined, Orthodox Defence,
         Tartakower Variation
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Bg5 Be7   5. e3 O-O   6. Nf3 h6
7. Bh4 b6

D59
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Bg5 Be7   5. e3 O-O   6. Nf3 h6
7. Bh4 b6   8. cd5 Nd5


---------------------------------------------------------------------
D6   Queen's Gambit Declined, Orthodox Defence with 4. Bg5, main line

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

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

D62
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Bg5 Be7   5. e3 O-O
6. Nf3 Nbd7   7. Qc2 c5   8. dc5

D63      Queen's Gambit Declined, Orthodox Defence
1. 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 Defence,
         Tempo-Struggle Variation
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Bg5 Be7   5. e3 O-O  
6. Nf3 Nbd7   7. Rc1 c6   8. Qc2

D65
1. 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. cd5

D66      Queen's Gambit Declined, Orthodox Defence, Main Variation
1. 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 Defence, Capablanca System
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Bg5 Be7   5. e3 O-O
6. Nf3 Nbd7   7. Rc1 c6   8. Bd3 dc4   9. Bc4 Nd5

D68
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Bg5 Be7   5. e3 O-O  
6. Nf3 Nbd7   7. Rc1 c6   8. Bd3 dc4   9. Bc4 Nd5    10. Be7 Qe7
11. O-O Nc3   12. Rc3 e5

D69
1. d4 d5   2. c4 e6   3. Nc3 Nf6   4. Bg5 Be7   5. e3 O-O  
6. Nf3 Nbd7   7. Rc1 c6   8. Bd3 dc4   9. Bc4 Nd5    10. Be7 Qe7  
11. O-O Nc3   12. Rc3 e5   13. de5 Ne5   14. Ne5 Qe5


---------------------------------------------------------------------
D7   ...mostly King's Indian Defence

D70      King's Indian Defence
1. d4 Nf6   2. c4 g6

D71      Grunfeld Defence, Fianchetto Variation
1. d4 Nf6   2. c4 g6   3. g3 d5   4. Bg2 Bg7   5. cd5 Nd5

D72
1. d4 Nf6   2. c4 g6   3. g3 d5   4. Bg2 Bg7   5. cd5 Nd5   6. e4 Nb6
7. Ne2

D73
1. d4 Nf6   2. c4 g6   3. g3 d5   4. Bg2 Bg7   5. Nf3 O-O

D74
1. d4 Nf6   2. c4 g6   3. g3 d5   4. Bg2 Bg7   5. Nf3 O-O  
6. cd5 Nd5   7. O-O

D75
1. d4 Nf6   2. c4 g6   3. g3 d5   4. Bg2 Bg7   5. Nf3 O-O
6. cd5 Nd5   7. O-O c5

D76
1. d4 Nf6   2. c4 g6   3. g3 d5   4. Bg2 Bg7   5. Nf3 O-O
6. cd5 Nd5   7. O-O Nb6

D77
1. d4 Nf6   2. c4 g6   3. g3 d5   4. Bg2 Bg7   5. Nf3 O-O
6. O-O

D78      Grunfeld Defence, Fianchetto Variation, Schlechter System
1. d4 Nf6   2. c4 g6   3. g3 d5   4. Bg2 Bg7   5. Nf3 O-O   6. O-O c6

D79      Grunfeld Defence, Fianchetto Variation
1. d4 Nf6   2. c4 g6   3. g3 d5   4. Bg2 Bg7   5. Nf3 O-O   6. O-O c6
7. cd5 cd5


---------------------------------------------------------------------
D8 - D9   Grunfeld Defence

D80      Grunfeld Defence, Taimanov Variation
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. Bg5

D81      Grunfeld Defence
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. Qb3

D82
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. Bf4

D83
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. Bf4 Bg7   5. e3 O-O

D84
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. Bf4 Bg7   5. e3 O-O
6. cd5 Nd5   7. Nd5 Qd5   8. Bc7

D85      Grunfeld Defence, Exchange Variation
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. cd5 Nd5

D86
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. cd5 Nd5   5. e4 Nc3
6. bc3 Bg7   7. Bc4

D87
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. cd5 Nd5   5. e4 Nc3
6. bc3 Bg7   7. Bc4 O-O   8. Ne2 c5

D88
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. cd5 Nd5   5. e4 Nc3
6. bc3 Bg7   7. Bc4 O-O   8. Ne2 c5   9. O-O Nc6    10. Be3 cd4
11. cd4

D89
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. cd5 Nd5   5. e4 Nc3
6. bc3 Bg7   7. Bc4 O-O   8. Ne2 c5   9. O-O Nc6    10. Be3 cd4
11. cd4 Bg4   12. f3 Na5   13. Bd3

D90      Grunfeld Defence
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. Nf3

D91      Grunfeld Defence, system with 5. Bg5
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. Nf3 Bg7   5. Bg5

D92      Grunfeld Defence, system with 5. Bf4
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. Nf3 Bg7   5. Bf4

D93
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. Nf3 Bg7   5. Bf4 O-O   6. e3

D94      Grunfeld Defence, Quiet (slow) system
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. Nf3 Bg7   5. e3

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

D96      Grunfeld Defence, Russian system
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. Nf3 Bg7   5. Qb3

D97
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. Nf3 Bg7   5. Qb3 dc4
6. Qc4 O-O   7. e4

D98
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. Nf3 Bg7   5. Qb3 dc4
6. Qc4 O-O   7. e4 Bg4

D99      Grunfeld Defence, Russian system, Smyslov variation
1. d4 Nf6   2. c4 g6   3. Nc3 d5   4. Nf3 Bg7   5. Qb3 dc4
6. Qc4 O-O   7. e4 Bg4 8. Be3 Nfd7   9. Qb3



----------------------------------------------------------------------
E0   Catalan

E00      Neo-Catalan
1. d4 Nf6   2. c4 e6   3. g3

E01      Catalan
1. d4 Nf6   2. c4 e6   3. g3 d5   4. Bg2

E02      Catalan, Open Variation
1. d4 Nf6   2. c4 e6   3. g3 d5   4. Bg2 dc4   5. Qa4

E03
1. d4 Nf6   2. c4 e6   3. g3 d5   4. Bg2 dc4   5. Qa4 Nbd7
6. Qc4

E04
1. d4 Nf6   2. c4 e6   3. g3 d5   4. Bg2 dc4   5. Nf3

E05
1. d4 Nf6   2. c4 e6   3. g3 d5   4. Bg2 dc4   5. Nf3 Be7

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

E07
1. d4 Nf6   2. c4 e6   3. g3 d5   4. Bg2 Be7   5. Nf3 O-O
6. O-O Nbd7

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

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



---------------------------------------------------------------------
E1   Indian Defences with 3. Nf3

E10      Indian system with 2...e6
1. d4 Nf6   2. c4 e6   3. Nf3

E11      Bogo-Indian Defence
1. d4 Nf6   2. c4 e6   3. Nf3 Bb4

E12      Queen's Indian Defence
1. d4 Nf6   2. c4 e6   3. Nf3 b6

E13
1. d4 Nf6   2. c4 e6   3. Nf3 b6   4. Nc3 Bb7   5. Bg5 h6
6. Bh4 Bb4

E14      Queen's Indian Defence, Closed Variation
1. d4 Nf6   2. c4 e6   3. Nf3 b6   4. e3

E15      Queen's Indian Defence, Classical Variation
1. d4 Nf6   2. c4 e6   3. Nf3 b6   4. g3

E16
1. d4 Nf6   2. c4 e6   3. Nf3 b6   4. g3 Bb7   5. Bg2 Bb4

E17
1. d4 Nf6   2. c4 e6   3. Nf3 b6   4. g3 Bb7   5. Bg2 Be7

E18
1. d4 Nf6   2. c4 e6   3. Nf3 b6   4. g3 Bb7   5. Bg2 Be7
6. O-O O-O   7. Nc3

E19
1. d4 Nf6   2. c4 e6   3. Nf3 b6   4. g3 Bb7   5. Bg2 Be7
6. O-O O-O   7. Nc3 Ne4   8. Qc2 Nc3   9. Qc3


---------------------------------------------------------------------
E2 - E5   Nimzo-Indian Defence

E20      Nimzo-Indian Defence
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4

E21      Nimzo-Indian Defence, Three Knights' System
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. Nf3

E22      Nimzo-Indian Defence, Spielmann Variation
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. Qb3

E23
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. Qb3 c5   5. dc5 Nc6

E24      Nimzo-Indian Defence, Samisch Variation
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. a3 Bc3   5. bc3

E25      Nimzo-Indian Defence, Open Samisch Variation
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. a3 Bc3   5. bc3 c5
6. f3 d5   7. cd5

E26      Nimzo-Indian Defence, Closed Samisch Variation
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. a3 Bc3   5. bc3 c5   6. e3

E27      Nimzo-Indian Defence, Samisch Variation
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. a3 Bc3   5. bc3 O-O


E28      Nimzo-Indian Defence, Closed Samisch Variation
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. a3 Bc3   5. bc3 O-O   6. e3

E29
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. a3 Bc3   5. bc3 O-O
6. e3 c5   7. Bd3 Nc6

E30      Nimzo-Indian Defence, Leningrad Variation
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. Bg5

E31
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. Bg5 h6   5. Bh4 c5   6. d5 d6

E32      Nimzo-Indian Defence, Classical Variation
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. Qc2

E33      Nimzo-Indian Defence, Classical Variation,
         Milner-Barry Variation
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. Qc2 Nc6

E34      Nimzo-Indian Defence, Classical Variation
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. Qc2 d5

E35
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. Qc2 d5   5. cd5 ed5

E36
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. Qc2 d5   5. a3

E37
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. Qc2 d5   5. a3 Bc3
6. Qc3 Ne4   7. Qc2

E38
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. Qc2 c5

E39
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. Qc2 c5   5. dc5 O-O   6. Nf3

E40      Nimzo-Indian Defence, Rubinstein Variation
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3

E41      Nimzo-Indian Defence, Rubinstein Variation, Hubner System
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3 c5

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

E43      Nimzo-Indian Defence, Rubinstein Variation, Fischer System
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3 b6

E44
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3 b6   5. Ne2

E45
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3 b6   5. Ne2 Ba6

E46      Nimzo-Indian Defence, Rubinstein Variation, (main line)
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3 O-O

E47
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3 O-O   5. Bd3

E48
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3 O-O   5. Bd3 d5

E49      Nimzo-Indian Defence, Rubinstein Variation (Closed Saemisch)
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3 O-O   5. Bd3 d5   6. a3 Bc3
7. bc3

E50      Nimzo-Indian Defence, Rubinstein Variation
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3 O-O   5. Nf3

E51
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5

E52      Nimzo-Indian Defence, Rubinstein Variation, Tal System
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 b6

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

E54
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3 O-O   5. Nf3 d5
6. Bd3 c5   7. O-O dc4   8. Bc4

E55      Nimzo-Indian Defence, Rubinstein Variation, Parma System

1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3 O-O   5. Nf3 d5
6. Bd3 c5   7. O-O dc4   8. Bc4 Nbd7

E56      Nimzo-Indian Defence, Rubinstein Variation (main line)
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3 O-O   5. Nf3 d5
6. Bd3 c5   7. O-O Nc6

E57
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3 O-O   5. Nf3 d5
6. Bd3 c5   7. O-O Nc6   8. a3 dc4   9. Bc4 cd4

E58
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3 O-O   5. Nf3 d5
6. Bd3 c5   7. O-O Nc6   8. a3 Bc3   9. bc3

E59
1. d4 Nf6   2. c4 e6   3. Nc3 Bb4   4. e3 O-O   5. Nf3 d5
6. Bd3 c5   7. O-O Nc6   8. a3 Bc3   9. bc3 dc4    10. Bc4


---------------------------------------------------------------------
E6   King's Indian Defence

E60      King's Indian Defence
1. d4 Nf6   2. c4 g6

E61
1. d4 Nf6   2. c4 g6   3. Nc3

E62      King's Indian Defence, Fianchetto Variation
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3

E63      King's Indian Defence, Fianchetto Variation, Panno system
1. 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 Defence, Fianchetto Variation,
         Leningrad variation
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. Nf3 d6   5. g3 O-O   6. Bg2 c5

E65
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. Nf3 d6   5. g3 O-O   6. Bg2 c5
7. O-O

E66
1. 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 Defence, Fianchetto Variation, classical system
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. Nf3 d6   5. g3 O-O  
6. Bg2 Nbd7

E68
1. 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
1. 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 Indian Defence
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4

E71      King's Indian Defence, system with 5.h3
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. h3

E72      King's Indian Defence, Fianchetto Variation
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. g3

E73      King's Indian Defence
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. Be2

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

E75
1. 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 Defence, Four Pawns' Attack
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. f4

E77
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. f4 O-O   6. Be2

E78
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. f4 O-O
6. Be2 c5   7. Nf3

E79
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. f4 O-O
6. Be2 c5   7. Nf3 cd4   8. Nd4 Nc6   9. Be3

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

E81
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. f3 O-O

E82      King's Indian Defence, Samisch Variation, Byrne System
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. f3 O-O
6. Be3 b6

E83      King's Indian Defence, Samisch Variation
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. f3 O-O
6. Be3 Nc6
        
E84
1. 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
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. f3 O-O   6. Be3 e5

E86
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. f3 O-O   6. Be3 e5
7. Nge2 c6

E87
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. f3 O-O   6. Be3 e5
7. d5

E88
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. f3 O-O   6. Be3 e5
7. d5 c6

E89
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. f3 O-O   6. Be3 e5
7. d5 c6   8. Nge2 cd5

E90      King's Indian Defence, Classical Variation
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. Nf3

E91
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. Nf3 O-O   6. Be2

E92
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. Nf3 O-O
6. Be2 e5

E93      King's Indian Defence, Classical Variation, Petrosian System
1. 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 Defence, Classical Variation, Old system
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. Nf3 O-O
6. Be2 e5   7. O-O

E95
1. 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
1. 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 Indian Defence, Classical Variation,
         Mar del Plata System
1. d4 Nf6   2. c4 g6   3. Nc3 Bg7   4. e4 d6   5. Nf3 O-O
6. Be2 e5   7. O-O Nc6

E98
1. 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
1. 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