Classification of Chess Openings
by Chess Informant

A
  - without 1. d4, 1. e4
  - 1. d4 without 1...d5, 1...Nf6
  - 1. d4 Nf6 without 2. c4
  - 1. d4 Nf6 2. c4 without 2...e6, 2...g6
B
  - 1. e4 without 1...c5, 1...e6, 1...e5
  - 1. e4 c5
C
  - 1. e4 e6
  - 1. e4 e5
D
  - 1. d4 d5
  - 1. d4 Nf6 2. c4 g6 with 3...d5
E
  - 1. d4 Nf6 2. c4 e6
  - 1. d4 Nf6 2. c4 g6 without 3...d5
 
 
A
A0
  - without 1. c4, 1. d4, 1. e4
A1
1. c4
  - without 1...e5, 1...c5
A2
1. c4 e5
A3
1. c4 c5
A4
1. d4
  - without 1...Nf6, 1...f5, 1...d5
  - 1...Nf6 without 2. c4
A5
1. d4 Nf6 2. c4
  - without 2...c5, 2...e6, 2...g6
  - 2...c5 without 3. d5
  - 3. d5 without 3...e6
A6
1. d4 Nf6 2. c4 c5 3. d5 e6
A7
1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3
A8
1. d4 f5
  - without 2. c4
  - 2. c4 without 2...Nf6
  - 2...Nf6 without 3. g3
  - 3. g3 without 3...e6
A9
1. d4 f5 2. c4 Nf6 3. g3 e6
 
 
A0
A00
  - without 1. b3, 1. f4, 1. Nf3, 1. c4, 1. d4, 1. e4
A01
1. b3
A02
1. f4
  - without 1...d5
A03
1. f4 d5
A04
1. Nf3
  - without 1...Nf6, 1...d5
A05
1. Nf3 Nf6
A06
1. Nf3 d5
  - without 2. g3, 2. c4
A07
1. Nf3 d5 2. g3
  - without 2...c5
A08
1. Nf3 d5 2. g3 c5
A09
1. Nf3 d5 2. c4
A1
A10
1. c4
  - without 1...c6, 1...e6, 1...Nf6, 1...e5, 1...c5
A11
1. c4 c6
  - without 2. Nf3
  - 2. Nf3 without 2...d5
  - 2...d5 without 3. b3
A12
1. c4 c6 2. Nf3 d5 3. b3
A13
1. c4 e6
  - without 2. Nf3
  - 2. Nf3 without 2...d5
  - 2...d5 without 3. g3
  - 3. g3 without 3...Nf6
  - 3...Nf6 without 4. Bg2
  - 4. Bg2 without 4...Be7
A14
1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7
A15
1. c4 Nf6
  - without 2. Nc3
A16
1. c4 Nf6 2. Nc3
  - without 2...e6
A17
1. c4 Nf6 2. Nc3 e6
  - without 3. e4
A18
1. c4 Nf6 2. Nc3 e6 3. e4
  - without 3...c5
A19
1. c4 Nf6 2. Nc3 e6 3. e4 c5
A2
A20
1. c4 e5
  - without 2. Nc3
A21
1. c4 e5 2. Nc3
  - without 2...Nf6, 2...Nc6
A22
1. c4 e5 2. Nc3 Nf6
  - without 3. g3
  - 3. g3 without 3...c6, 3...g6
A23
1. c4 e5 2. Nc3 Nf6 3. g3 c6
A24
1. c4 e5 2. Nc3 Nf6 3. g3 g6
A25
1. c4 e5 2. Nc3 Nc6
  - without 3. g3, 3. Nf3
  - 3. g3 without 3...g6
  - 3...g6 without 4. Bg2
  - 4. Bg2 without 4...Bg7
  - 4...Bg7 without 5. d3
A26
1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3
A27
1. c4 e5 2. Nc3 Nc6 3. Nf3
  - without 3...Nf6
A28
1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6
  - without 4. g3
A29
1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3
A3
A30
1. c4 c5
  - without 2. Nf3, 2. Nc3
  - 2. Nf3 without 2...Nf6
  - 2...Nf6 without 3. d4
A31
1. c4 c5 2. Nf3 Nf6 3. d4
  - without 3...cxd4
  - 3...cxd4 without 4. Nxd4
  - 4. Nxd4 without 4...e6
A32
1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 e6
  - without 5. Nc3
  - 5. Nc3 without 5...Nc6
A33
1. c4 c5 2. Nf3 Nf6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Nc6
A34
1. c4 c5 2. Nc3
  - without 2...Nc6
A35
1. c4 c5 2. Nc3 Nc6
  - without 3. g3
A36
1. c4 c5 2. Nc3 Nc6 3. g3
  - without 3...g6
  - 3...g6 without 4. Bg2
  - 4. Bg2 without 4...Bg7
  - 4...Bg7 without 5. Nf3
A37
1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3
  - without 5...Nf6
A38
1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6
  - without 6. O-O
  - 6. O-O without 6...O-O
  - 6...O-O without 7. d4
A39
1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nf3 Nf6 6. O-O O-O 7. d4
A4
A40
1. d4
  - without 1...d6, 1...c5, 1...Nf6, 1...f5, 1...d5
A41
1. d4 d6
  - without 2. c4
  - 2. c4 without 2...g6
  - 2...g6 without 3. Nc3
  - 3. Nc3 without 3...Bg7
  - 3...Bg7 without 4. e4
A42
1. d4 d6 2. c4 g6 3. Nc3 Bg7 4. e4
A43
1. d4 c5
  - without 2. d5
  - 2. d5 without 2...e5
A44
1. d4 c5 2. d5 e5
A45
1. d4 Nf6
  - without 2. Nf3, 2. c4
A46
1. d4 Nf6 2. Nf3
  - without 2...b6, 2...g6
A47
1. d4 Nf6 2. Nf3 b6
A48
1. d4 Nf6 2. Nf3 g6
  - without 3. g3
A49
1. d4 Nf6 2. Nf3 g6 3. g3
A5
A50
1. d4 Nf6 2. c4
  - without 2...e5, 2...d6, 2...c5, 2...e6, 2...g6
A51
1. d4 Nf6 2. c4 e5
  - without 3. dxe5
  - 3. dxe5 without 3...Ng4
A52
1. d4 Nf6 2. c4 e5 3. dxe5 Ng4
A53
1. d4 Nf6 2. c4 d6
  - without 3. Nc3
  - 3. Nc3 without 3...e5
  - 3...e5 without 4. Nf3
A54
1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3
  - without 4...Nbd7
  - 4...Nbd7 without 5. e4
A55
1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. Nf3 Nbd7 5. e4
A56
1. d4 Nf6 2. c4 c5
  - without 3. d5
  - 3. d5 without 3...b5, 3...e6
A57
1. d4 Nf6 2. c4 c5 3. d5 b5
  - without 4. cxb5
  - 4. cxb5 without 4...a6
  - 4...a6 without 5. bxa6
A58
1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6
  - without 5...Bxa6
  - 5...Bxa6 without 6. Nc3
  - 6. Nc3 without 6...d6
  - 6...d6 without 7. e4
A59
1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. e4
A6
A60
1. d4 Nf6 2. c4 c5 3. d5 e6
  - without 4. Nc3
  - 4. Nc3 without 4...exd5
  - 4...exd5 without 5. cxd5
  - 5. cxd5 without 5...d6
  - 5...d6 without 6. Nf3, 6. e4
  - 6. Nf3 without 6...g6
A61
1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6
  - without 7. g3
A62
1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. g3
  - without 7...Bg7
  - 7...Bg7 without 8. Bg2
  - 8. Bg2 without 8...O-O
  - 8...O-O without 9. O-O
  - 9. O-O without 9...a6
  - 9...a6 without 10. a4
  - 10. a4 without 10...Nbd7
A63
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. O-O a6 10. a4 Nbd7
  - without 11. Nd2
  - 11. Nd2 without 11...Re8
A64
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. O-O a6 10. a4 Nbd7 11. Nd2 Re8
A65
1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4
  - without 6...g6
  - 6...g6 without 7. f4, 7. Nf3
A66
1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4
  - without 7...Bg7
  - 7...Bg7 without 8. Bb5+, 8. Nf3
A67
1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+
A68
1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Nf3
  - without 8...O-O
  - 8...O-O without 9. Be2
  - 9. Be2 without 9...Re8
A69
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. Be2 Re8
A7
A70
1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3
  - without 7...Bg7
  - 7...Bg7 without 8. Bg5, 8. Be2
A71
1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Bg5
A72
1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2
  - without 8...O-O
  - 8...O-O without 9. O-O
A73
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. O-O
  - without 9...a6, 9...Re8
A74
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. O-O a6
  - without 10. a4
  - 10. a4 without 10...Bg4
A75
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. O-O a6 10. a4 Bg4
A76
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. O-O Re8
  - without 10. Nd2
A77
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. O-O Re8 10. Nd2
  - without 10...Na6
A78
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. O-O Re8 10. Nd2 Na6
  - without 11. f3
A79
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. O-O Re8 10. Nd2 Na6 11. f3
A8
A80
1. d4 f5
  - without 2. g3, 2. e4, 2. c4
A81
1. d4 f5 2. g3
A82
1. d4 f5 2. e4
  - without 2...fxe4
  - 2...fxe4 without 3. Nc3
  - 3. Nc3 without 3...Nf6
  - 3...Nf6 without 4. Bg5
A83
1. d4 f5 2. e4 fxe4 3. Nc3 Nf6 4. Bg5
A84
1. d4 f5 2. c4
  - without 2...Nf6
  - 2...Nf6 without 3. Nc3, 3. g3
A85
1. d4 f5 2. c4 Nf6 3. Nc3
A86
1. d4 f5 2. c4 Nf6 3. g3
  - without 3...g6, 3...e6
  - 3...g6 without 4. Bg2
  - 4. Bg2 without 4...Bg7
  - 4...Bg7 without 5. Nf3
A87
1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3
  - without 5...O-O
  - 5...O-O without 6. O-O
  - 6. O-O without 6...d6
  - 6...d6 without 7. Nc3
  - 7. Nc3 without 7...c6, 7...Nc6
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
A9
A90
1. d4 f5 2. c4 Nf6 3. g3 e6
  - without 4. Bg2
  - 4. Bg2 without 4...Be7
A91
1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7
  - without 5. Nf3
A92
1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3
  - without 5...O-O
  - 5...O-O without 6. O-O
  - 6. O-O without 6...d5, 6...d6
  - 6...d5 without 7. b3, 7. Nc3
A93
1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. b3
  - without 7...c6
  - 7...c6 without 8. Ba3
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
A96
1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6
  - without 7. Nc3
  - 7. Nc3 without 7...Qe8
A97
1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8
  - without 8. Qc2, 8. b3
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
 
 
B
B0
1. e4
  - without 1...c6, 1...c5, 1...e6, 1...e5
B1
1. e4 c6
B2
1. e4 c5
  - without 2. Nf3
  - 2. Nf3 without 2...Nc6, 2...e6, 2...d6
B3
1. e4 c5 2. Nf3 Nc6
B4
1. e4 c5 2. Nf3 e6
B5
1. e4 c5 2. Nf3 d6
  - without 3. d4
  - 3. d4 without 3...cxd4
  - 3...cxd4 without 4. Nxd4
  - 4. Nxd4 without 4...Nf6
  - 4...Nf6 without 5. Nc3
  - 5. Nc3 without 5...Nc6, 5...g6, 5...e6, 5...a6
  - 5...Nc6 without 6. Bg5
B6
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5
B7
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6
B8
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6
B9
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6
 
 
B0
B00
1. e4
  - without 1...d5, 1...Nf6, 1...g6, 1...d6, 1...c6, 1...c5, 1...e6, 1...e5
B01
1. e4 d5
B02
1. e4 Nf6
  - without 2. e5
  - 2. e5 without 2...Nd5
  - 2...Nd5 without 3. d4
B03
1. e4 Nf6 2. e5 Nd5 3. d4
  - without 3...d6
  - 3...d6 without 4. Nf3
B04
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3
  - without 4...Bg4
B05
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4
B06
1. e4 g6
B07
1. e4 d6
  - without 2. d4
  - 2. d4 without 2...Nf6
  - 2...Nf6 without 3. Nc3
  - 3. Nc3 without 3...g6
  - 3...g6 without 4. Nf3, 4. f4
B08
1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3
B09
1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4
B1
B10
1. e4 c6
  - without 2. Nc3, 2. d4
B11
1. e4 c6 2. Nc3
  - without 2...d5
  - 2...d5 without 3. Nf3
  - 3. Nf3 without 3...Bg4
  - 3...Bg4
B12
1. e4 c6 2. d4
  - without 2...d5
  - 2...d5 without 3. exd5, 3. Nc3
B13
1. e4 c6 2. d4 d5 3. exd5
  - without 3...cxd5
  - 3...cxd5 without 4. c4
  - 4. c4 without 4...Nf6
  - 4...Nf6 without 5. Nc3
  - 5. Nc3 without 5...g6, 5...e6
B14
1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3
  - 5...g6
  - 5...e6
B15
1. e4 c6 2. d4 d5 3. Nc3
  - without 3...dxe4
  - 3...dxe4 without 4. Nxe4
  - 4. Nxe4 without 4...Nf6, 4...Nd7, 4...Bf5
  - 4...Nf6 without 5. Nxf6+
  - 5. Nxf6+ exf6
B16
1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6
B17
1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7
B18
1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5
  - without 5. Ng3
  - 5. Ng3 without 5...Bg6
  - 5...Bg6 without 6. h4
  - 6. h4 without 6...h6
  - 6...h6 without 7. Nf3
B19
1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3
B2
B20
1. e4 c5
  - without 2. f4, 2. d4, 2. c3, 2. Nc3, 2. Nf3
B21
1. e4 c5
  - 2. f4
  - 2. d4
B22
1. e4 c5 2. c3
B23
1. e4 c5 2. Nc3
  - without 2...Nc6
  - 2...Nc6 without 3. g3
B24
1. e4 c5 2. Nc3 Nc6 3. g3
  - without 3...g6
  - 3...g6 without 4. Bg2
  - 4. Bg2 without 4...Bg7
  - 4...Bg7 without 5. d3
  - 5. d3 without 5...d6
B25
1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6
  - without 6. Be3
B26
1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3
B27
1. e4 c5 2. Nf3
  - without 2...a6, 2...Nf6, 2...Nc6, 2...e6, 2...d6
B28
1. e4 c5 2. Nf3 a6
B29
1. e4 c5 2. Nf3 Nf6
B3
B30
1. e4 c5 2. Nf3 Nc6
  - without 3. Bb5, 3. d4
  - 3. Bb5 without 3...g6
B31
1. e4 c5 2. Nf3 Nc6 3. Bb5 g6
B32
1. e4 c5 2. Nf3 Nc6 3. d4
  - without 3...cxd4
  - 3...cxd4 without 4. Nxd4
  - 4. Nxd4 without 4...Nf6, 4...g6
B33
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6
B34
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6
  - without 5. Nc3, 5. c4
  - 5. Nc3 without 5...Bg7
  - 5...Bg7 without 6. Be3
  - 6. Be3 without 6...Nf6
  - 6...Nf6 without 7. Bc4
B35
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4
B36
1. e4 c5 2. Nf3 Nc6 3. d4 cd4 4. Nd4 g6 5. c4
  - without 5...Bg7
B37
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7
  - without 6. Be3
B38
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3
  - without 6...Nf6
  - 6...Nf6 without 7. Nc3
  - 7. Nc3 without 7...Ng4
B39
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4
B4
B40
1. e4 c5 2. Nf3 e6
  - without 3. d4
  - 3. d4 without 3...cxd4
  - 3...cxd4 without 4. Nxd4
  - 4. Nxd4 without 4...a6, 4...Nc6
B41
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6
  - without 5. Bd3, 5. Nc3
B42
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3
B43
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3
B44
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6
  - without 5. Nc3
B45
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3
  - without 5...a6, 5...Qc7
B46
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6
B47
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7
  - without 6. Be3
B48
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3
  - without 6...a6
  - 6...a6 without 7. Be2
B49
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2
B5
B50
1. e4 c5 2. Nf3 d6
  - without 3. Bb5+, 3. d4
B51
1. e4 c5 2. Nf3 d6 3. Bb5+
  - without 3...Bd7
B52
1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7
B53
1. e4 c5 2. Nf3 d6 3. d4
  - without 3...cxd4
  - 3...cxd4 without 4. Nxd4
B54
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4
  - without 4...Nf6
B55
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6
  - without 5. f3, 5. Nc3
  - 5. f3
B56
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3
  - without 5...Nc6, 5...g6, 5...e6, 5...a6
  - 5...Nc6 without 6. Bc4, 6. Be2, 6. Bg5
B57
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4
B58
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2
  - without 6...e5
  - 6...e5 without 7. Nb3
B59
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nb3
B6
B60
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5
  - without 6...Bd7, 6...e6
  - 6...Bd7 without 7. Qd2
B61
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Bd7 7. Qd2
B62
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6
  - without 7. Qd2
B63
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2
  - without 7...Be7, 7...a6
  - 7...Be7 without 8. O-O-O
  - 8. O-O-O without 8...O-O
  - 8...O-O without 9. f4
B64
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
  - without 9...Nxd4
B65
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
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6
  - without 8. O-O-O
  - 8. O-O-O without 8...Bd7
B67
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
  - without 9. f4
  - 9. f4 without 9...Be7
B68
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
  - without 10. Nf3
  - 10. Nf3 without 10...b5
  - 10...b5 without 11. Bxf6
B69
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
B7
B70
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6
  - without 6. f4, 6. Be3
B71
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4
B72
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3
  - without 6...Bg7
  - 6...Bg7 without 7. Be2, 7. f3
  - 7. Be2 without 7...Nc6
  - 7...Nc6 without 8. O-O
B73
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. O-O
  - without 8...O-O
  - 8...O-O without 9. Nb3
B74
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
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3
  - without 7...O-O
B76
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O
  - without 8. Qd2
  - 8. Qd2 without 8...Nc6
  - 8...Nc6 without 9. Bc4
B77
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
  - without 9...Bd7
  - 9...Bd7 without 10. O-O-O
B78
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
  - without 10...Qa5
  - 10...Qa5 without 11. Bb3
  - 11. Bb3 without 11...Rfc8
B79
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
B8
B80
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6
  - without 6. g4, 6. f4, 6. Be2, 6. Bc4
B81
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4
B82
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. f4
B83
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2
  - without 6...a6
B84
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 a6
  - without 7. O-O
  - 7. O-O without 7...Be7
  - 7...Be7 without 8. f4
  - 8. f4 without 8...O-O
  - 8...O-O without 9. Be3
B85
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 a6 7. O-O Be7 8. f4 O-O 9. Be3
B86
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4
  - without 6...a6, 6...Nc6
  - 6...a6 without 7. Bb3
  - 7. Bb3 without 7...b5
B87
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 a6 7. Bb3 b5
B88
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 Nc6
  - without 7. Be3
B89
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bc4 Nc6 7. Be3
B9
B90
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6
  - without 6. g3, 6. Be2, 6. f4, 6. Bg5
B91
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3
B92
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2
B93
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4
B94
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5
  - without 6...e6
B95
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6
  - without 7. f4
B96
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4
  - without 7...Qb6, 7...Be7
B97
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6
B98
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7
  - without 8. Qf3
  - 8. Qf3 without 8...Qc7
  - 8...Qc7 without 9. O-O-O
  - 9. O-O-O without 9...Nbd7
B99
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
 
 
C
C0
1. e4 e6
  - without 2. d4
  - 2. d4 without 2...d5
  - 2...d5 without 3. Nc3
C1
1. e4 e6 2. d4 d5 3. Nc3
C2
1. e4 e5
  - without 2. f4, 2. Nf3
C3
1. e4 e5 2. f4
C4
1. e4 e5 2. Nf3
  - without 2...Nc6
  - 2...Nc6 without 3. Bc4, 3. Bb5
C5
1. e4 e5 2. Nf3 Nc6 3. Bc4
C6
1. e4 e5 2. Nf3 Nc6 3. Bb5
  - without 3...a6
  - 3...a6 without 4. Ba4
C7
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4
  - without 4...Nf6
  - 4...Nf6 without 5. O-O
  - 5. O-O without 5...Nxe4, 5...Be7
C8
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O
  - 5...Nxe4
  - 5...Be7 without 6. Re1
  - 6. Re1 without 6...b5
  - 6...b5 7. Bb3 without 7...d6
C9
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6
 
 
C0
C00
1. e4 e6
  - without 2. d4
C01
1. e4 e6 2. d4
  - without 2...d5
  - 2...d5 without 3. exd5, 3. e5, 3. Nd2, 3. Nc3
  - 3. exd5
C02
1. e4 e6 2. d4 d5 3. e5
C03
1. e4 e6 2. d4 d5 3. Nd2
  - without 3...Nc6, 3...Nf6, 3...c5
C04
1. e4 e6 2. d4 d5 3. Nd2 Nc6
C05
1. e4 e6 2. d4 d5 3. Nd2 Nf6
  - without 4. e5
  - 4. e5 without 4...Nfd7
  - 4...Nfd7 without 5. Bd3
  - 5. Bd3 without 5...c5
  - 5...c5 without 6. c3
  - 6. c3 without 6...Nc6
  - 6...Nc6 without 7. Ne2
  - 7. Ne2 without 7...cxd4
C06
1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4
C07
1. e4 e6 2. d4 d5 3. Nd2 c5
  - without 4. exd5
  - 4. exd5 without 4...exd5
C08
1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5
  - without 5. Ngf3
  - 5. Ngf3 without 5...Nc6
C09
1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6
C1
C10
1. e4 e6 2. d4 d5 3. Nc3
  - without 3...Nf6, 3...Bb4
C11
1. e4 e6 2. d4 d5 3. Nc3 Nf6
  - without 4. Bg5
  - 4. Bg5 without 4...Bb4, 4...Be7
C12
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4
C13
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7
  - without 5. e5
  - 5. e5 without 5...Nfd7
  - 5...Nfd7 without 6. Bxe7
C14
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7
C15
1. e4 e6 2. d4 d5 3. Nc3 Bb4
  - without 4. e5
C16
1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5
  - without 4...c5
C17
1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5
  - without 5. a3
  - 5. a3 without 5...Bxc3+
C18
1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3
  - without 6...Ne7
  - 6...Ne7 without 7. Nf3, 7. a4
C19
1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7
  - 7. Nf3
  - 7. a4
C2
C20
1. e4 e5
  - without 2. d4, 2. Bc4, 2. Nc3, 2. f4, 2. Nf3
C21
1. e4 e5 2. d4
  - without 2...exd4
  - 2...exd4 without 3. Qxd4
C22
1. e4 e5 2. d4 exd4 3. Qxd4
C23
1. e4 e5 2. Bc4
  - without 2...Nf6
C24
1. e4 e5 2. Bc4 Nf6
C25
1. e4 e5 2. Nc3
  - without 2...Nf6
C26
1. e4 e5 2. Nc3 Nf6
  - without 3. Bc4, 3. f4
  - 3. Bc4 without 3...Nxe4, 3...Nc6
C27
1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4
C28
1. e4 e5 2. Nc3 Nf6 3. Bc4 Nc6
C29
1. e4 e5 2. Nc3 Nf6 3. f4
C3
C30
1. e4 e5 2. f4
  - without 2...d5, 2...exf4
C31
1. e4 e5 2. f4 d5
  - without 3. exd5
  - 3. exd5 without 3...e4
  - 3...e4 without 4. d3
  - 4. d3 without 4...Nf6
C32
1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6
C33
1. e4 e5 2. f4 exf4
  - without 3. Nf3
C34
1. e4 e5 2. f4 exf4 3. Nf3
  - without 3...Be7, 3...d5, 3...g5
C35
1. e4 e5 2. f4 exf4 3. Nf3 Be7
C36
1. e4 e5 2. f4 exf4 3. Nf3 d5
C37
1. e4 e5 2. f4 exf4 3. Nf3 g5
  - without 4. Bc4, 4. h4
  - 4. Bc4 without 4...Bg7
C38
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7
C39
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4
C4
C40
1. e4 e5 2. Nf3
  - without 2...d6, 2...Nf6, 2...Nc6
C41
1. e4 e5 2. Nf3 d6
C42
1. e4 e5 2. Nf3 Nf6
  - without 3. d4
C43
1. e4 e5 2. Nf3 Nf6 3. d4
C44
1. e4 e5 2. Nf3 Nc6
  - without 3. d4, 3. Nc3, 3. Bc4, 3. Bb5
  - 3. d4 without 3...exd4
  - 3...exd4 without 4. Nxd4
C45
1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4
C46
1. e4 e5 2. Nf3 Nc6 3. Nc3
  - without 3...Nf6
C47
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6
  - without 4. Bb5
C48
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5
  - without 4...Bb4
C49
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4
C5
C50
1. e4 e5 2. Nf3 Nc6 3. Bc4
  - without 3...Bc5, 3...Nf6
  - 3...Bc5 without 4. b4, 4. c3
C51
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4
  - without 4...Bxb4
  - 4...Bxb4 without 5. c3
  - 5. c3 without 5...Ba5
C52
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5
C53
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3
  - without 4...Nf6
C54
1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6
C55
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6
  - without 4. d4, 4. Ng5
  - 4. d4 without 4...exd4
  - 4...exd4 without 5. O-O
  - 5. O-O without 5...Nxe4
C56
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4
C57
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5
  - without 4...d5
  - 4...d5 without 5. exd5
  - 5. exd5 without 5...Na5
C58
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5
  - without 6. Bb5+
  - 6. Bb5+ without 6...c6
  - 6...c6 without 7. dxc6
  - 7. dxc6 without 7...bxc6
  - 7...bxc6 without 8. Be2
C59
1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2
C6
C60
1. e4 e5 2. Nf3 Nc6 3. Bb5
  - without 3...Nd4, 3...d6, 3...f5, 3...Bc5, 3...Nf6, 3...a6
C61
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4
C62
1. e4 e5 2. Nf3 Nc6 3. Bb5 d6
C63
1. e4 e5 2. Nf3 Nc6 3. Bb5 f5
C64
1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5
C65
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6
  - without 4. O-O
  - 4. O-O without 4...d6, 4...Nxe4
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 Nxe4
C68
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6
  - without 4. Bxc6, 4. Ba4
  - 4. Bxc6 without 4...dxc6
  - 4...dxc6 without 5. O-O
  - 5. O-O without 5...f6
C69
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O f6
C7
C70
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4
  - without 4...d6, 4...Nf6
C71
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6
  - without 5. O-O, 5. Bxc6+, 5. c3
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. Bxc6+
C74
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3
  - without 5...Bd7
C75
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7
  - without 6. d4
  - 6. d4 without 6...g6
C76
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 g6
C77
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6
  - without 5. O-O
C78
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O
  - without 5...d6, 5...Nxe4, 5...Be7
C79
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6
C8
C80
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4
  - without 6. d4
  - 6. d4 without 6...b5
  - 6...b5 without 7. Bb3
  - 7. Bb3 without 7...d5
  - 7...d5 without 8. dxe5
  - 8. dxe5 without 8...Be6
  - 8...Be6 without 9. Qe2, 9. c3
C81
1. 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. Qe2
C82
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. de5 Be6 9. c3
  - without 9...Be7
C83
1. 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 Be7
C84
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7
  - without 6. Bxc6, 6. Qe2, 6. Re1
C85
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6
C86
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2
C87
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1
  - without 6...b5
C88
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3
  - without 7...O-O, 7...d6
  - 7...O-O without 8. c3
C89
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
C9
C90
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6
  - without 8. c3
  - 8. c3 without 8...O-O
  - 8...O-O without 9. d4, 9. h3
C91
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. d4
C92
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3
  - without 9...h6, 9...Nb8, 9...Na5
C93
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 h6
C94
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8
  - without 10. d4
C95
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4
C96
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5
  - without 10. Bc2
  - 10. Bc2 without 10...c5
  - 10...c5 without 11. d4
  - 11. d4 without 11...Qc7
C97
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7
  - without 12. Nbd2
  - 12. Nbd2 without 12...Nc6, 12...cxd4
C98
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 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 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 cxd4
 
 
D
D0
1. d4 d5
  - without 2. c4
  - 2. c4 without 2...c6, 2...dxc4, 2...e6
D1
1. d4 d5 2. c4 c6
D2
1. d4 d5 2. c4 dxc4
D3
1. d4 d5 2. c4 e6
  - without 3. Nc3
  - 3. Nc3 without 3...Nf6
  - 3...Nf6 without 4. Nf3, 4. Bg5
  - 4. Nf3 without 4...c5, 4...c6
D4
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3
  - 4...c5
  - 4...c6
D5
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5
  - without 4...Be7
  - 4...Be7 without 5. e3
  - 5. e3 without 5...O-O
  - 5...O-O without 6. Nf3
  - 6. Nf3 without 6...Nbd7
D6
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7
D7
1. d4 Nf6 2. c4 g6 with 3...d5
  - without 3. Nc3
D8
1. d4 Nf6 2. c4 g6 3. Nc3 d5
  - without 4. Nf3
D9
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3
 
 
D0
D00
1. d4 d5
  - without 2. Nc3, 2. Nf3, 2. c4
  - 2. Nc3 without 2...Nf6
  - 2...Nf6 without 3. Bg5
D01
1. d4 d5 2. Nc3 Nf6 3. Bg5
D02
1. d4 d5 2. Nf3
  - without 2...Nf6
  - 2...Nf6 without 3. Bg5, 3. e3
D03
1. d4 d5 2. Nf3 Nf6 3. Bg5
D04
1. d4 d5 2. Nf3 Nf6 3. e3
  - without 3...e6
D05
1. d4 d5 2. Nf3 Nf6 3. e3 e6
D06
1. d4 d5 2. c4
  - without 2...Nc6, 2...e5, 2...c6, 2...dxc4, 2...e6
D07
1. d4 d5 2. c4 Nc6
D08
1. d4 d5 2. c4 e5
  - without 3. dxe5
  - 3. dxe5 without 3...d4
  - 3...d4 without 4. Nf3
  - 4. Nf3 without 4...Nc6
  - 4...Nc6 without 5. g3
D09
1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3
D1
D10
1. d4 d5 2. c4 c6
  - without 3. Nf3
D11
1. d4 d5 2. c4 c6 3. Nf3
  - without 3...Nf6
  - 3...Nf6 without 4. e3, 4. cxd5, 4. Nc3
  - 4. e3 without 4...Bf5
D12
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5
D13
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5
  - without 4...cxd5
  - 4...cxd5 without 5. Nc3
  - 5. Nc3 without 5...Nc6
  - 5...Nc6 without 6. Bf4
  - 6. Bf4 without 6...Bf5
D14
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5
D15
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3
  - without 4...dxc4
  - 4...dxc4 without 5. a4
D16
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4
  - without 5...Bf5
D17
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5
  - without 6. e3
D18
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3
  - without 6...e6
  - 6...e6 without 7. Bxc4
  - 7. Bxc4 without 7...Bb4
  - 7...Bb4 without 8. O-O
  - 8. O-O without 8...O-O
  - 8...O-O without 9. Qe2
D19
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bc4 Bb4 8. O-O O-O 9. Qe2
D2
D20
1. d4 d5 2. c4 dxc4
  - without 3. Nf3
D21
1. d4 d5 2. c4 dxc4 3. Nf3
  - without 3...a6, 3...Nf6
  - 3...a6 without 4. e3
D22
1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3
D23
1. d4 d5 2. c4 dxc4 3. Nf3 Nf6
  - without 4. Nc3, 4. e3
D24
1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3
D25
1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3
  - without 4...e6
D26
1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6
  - without 5. Bxc4
  - 5. Bxc4 without 5...c5
  - 5...c5 without 6. O-O
  - 6. O-O without 6...a6
D27
1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6
  - without 7. Qe2
D28
1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2
  - without 7...b5
  - 7...b5 without 8. Bb3
  - 8. Bb3 without 8...Bb7
D29
1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Bb7
D3
D30
1. d4 d5 2. c4 e6
  - without 3. Nc3
D31
1. d4 d5 2. c4 e6 3. Nc3
  - without 3...c5, 3...Nf6
D32
1. d4 d5 2. c4 e6 3. Nc3 c5
  - without 4. cxd5
  - 4. cxd5 without 4...exd5
  - 4...exd5 without 5. Nf3
  - 5. Nf3 without 5...Nc6
  - 5...Nc6 without 6. g3
D33
1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3
  - without 6...Nf6
  - 6...Nf6 without 7. Bg2
  - 7. Bg2 without 7...Be7
D34
1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7
D35
1. d4 d5 2. c4 e6 3. Nc3 Nf6
  - without 4. cxd5, 4. Nf3, 4. Bg5
  - 4. cxd5 without 4...exd5
  - 4...exd5 without 5. Bg5
  - 5. Bg5 without 5...c6
  - 5...c6 without 6. Qc2
D36
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. Qc2
D37
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3
  - without 4...Bb4, 4...c5, 4...c6
D38
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4
  - without 5. Bg5
  - 5. Bg5 without 5...dxc4
D39
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. Bg5 dxc4
D4
D40
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5
  - without 5. cxd5
D41
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5
  - without 5...Nxd5
  - 5...Nxd5 without 6. e3
  - 6. e3 without 6...Nc6
  - 6...Nc6 without 7. Bd3
D42
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3
D43
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6
  - without 5. Bg5, 5. e3
  - 5. Bg5 without 5...dxc4
D44
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. Bg5 dxc4
D45
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3
  - without 5...Nbd7
  - 5...Nbd7 without 6. Bd3
D46
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3
  - without 6...dxc4
D47
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4
  - without 7...b5
  - 7...b5 without 8. Bd3
  - 8. Bd3 without 8...a6
D48
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6
  - without 9. e4
  - 9. e4 without 9...c5
  - 9...c5 without 10. e5
  - 10. e5 without 10...cxd4
  - 10...cxd4 without 11. Nxb5
D49
1. 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
D5
D50
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5
  - without 4...Nbd7, 4...Be7
D51
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7
  - without 5. e3
  - 5. e3 without 5...c6
  - 5...c6 without 6. Nf3
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
  - without 5. e3
  - 5. e3 without 5...O-O
  - 5...O-O without 6. Rc1, 6. Nf3
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
  - without 6...h6, 6...Nbd7
  - 6...h6 without 7. Bh4
D56
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4
  - without 7...Ne4, 7...b6
  - 7...Ne4 without 8. Bxe7
  - 8. Bxe7 Qxe7 without 9. cxd5
D57
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4 8. Bxe7 Qxe7 9. cxd5
D58
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 b6
  - without 8. cxd5
  - 8. cxd5 without 8...Nxd5
D59
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 b6 8. cxd5 Nxd5
D6
D60
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7
  - without 7. Qc2, 7. Rc1
D61
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2
  - without 7...c5
  - 7...c5 without 8. cxd5
D62
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Qc2 c5 8. cxd5
D63
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1
  - without 7...c6
  - 7...c6 without 8. Qc2, 8. Bd3
D64
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Qc2
  - without 8...a6
  - 8...a6 without 9. cxd5
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. cxd5
D66
1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3
  - without 8...dxc4
  - 8...dxc4 9. Bxc4 without 9...Nd5
D67
1. 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
  - without 10. Bxe7
  - 10. Bxe7 without 10...Qxe7
  - 10...Qxe7 without 11. O-O
  - 11. O-O without 11...Nxc3
  - 11...Nxc3 without 12. Rxc3
  - 12. Rxc3 without 12...e5
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 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5
  - without 13. dxe5
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 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5 13. dxe5
D7
D70
1. d4 Nf6 2. c4 g6 with 3...d5
  - without 3. g3, 3. Nc3
D71
1. d4 Nf6 2. c4 g6 3. g3 d5
  - without 4. Bg2
  - 4. Bg2 without 4...Bg7
  - 4...Bg7 without 5. cxd5, 5. Nf3
  - 5. cxd5 Nxd5 without 6. e4
  - 6. e4 without 6...Nb6
D72
1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. cxd5 Nxd5 6. e4 Nb6
D73
1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3
  - without 5...O-O
  - 5...O-O without 6. cxd5, 6. O-O
  - 6. cxd5 without 6...Nxd5
  - 6...Nxd5 without 7. O-O
D74
1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. cxd5 Nxd5 7. O-O
  - without 7...c5, 7...Nb6
  - 7...c5 without 8. Nc3, 8. dxc5
D75
1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. cxd5 Nxd5 7. O-O c5
  - 8. Nc3
  - 8. dxc5
D76
1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. cxd5 Nxd5 7. O-O Nb6
D77
1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. O-O
  - without 6...c6
D78
1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. O-O c6
  - without 7. cxd5
D79
1. d4 Nf6 2. c4 g6 3. g3 d5 4. Bg2 Bg7 5. Nf3 O-O 6. O-O c6 7. cxd5
D8
D80
1. d4 Nf6 2. c4 g6 3. Nc3 d5
  - without 4. Qb3, 4. Bf4, 4. cxd5, 4. Nf3
D81
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Qb3
D82
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4
  - without 4...Bg7
  - 4...Bg7 without 5. e3
  - 5. e3 without 5...O-O
D83
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O
  - without 6. cxd5
D84
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. cxd5 Nxd5
D85
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5
  - without 5. e4
  - 5. e4 without 5...Nxc3
  - 5...Nxc3 6. bxc3 without 6...Bg7
  - 6...Bg7 without 7. Bc4
D86
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4
  - without 7...O-O
  - 7...O-O without 8. Ne2
  - 8. Ne2 without 8...c5
D87
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 c5
  - without 9. O-O
  - 9. O-O without 9...Nc6
  - 9...Nc6 without 10. Be3
  - 10. Be3 without 10...cxd4
D88
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 c5 9. O-O Nc6 10. Be3 cxd4
  - without 11. cxd4
  - 11. cxd4 without 11...Bg4
  - 11...Bg4 without 12. f3
  - 12. f3 without 12...Na5
  - 12...Na5 without 13. Bd3
D89
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 c5 9. O-O Nc6 10. Be3 cxd4 11. cxd4 Bg4 12. f3 Na5 13. Bd3
D9
D90
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3
  - without 4...Bg7
  - 4...Bg7 without 5. Bg5, 5. Bf4, 5. e3, 5. Qb3
D91
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg5
D92
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4
  - without 5...O-O
  - 5...O-O without 6. e3
D93
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 O-O 6. e3
D94
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3
  - without 5...O-O
  - 5...O-O without 6. Qb3
D95
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Qb3
D96
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3
  - without 5...dxc4
  - 5...dxc4 without 6. Qxc4
  - 6. Qxc4 without 6...O-O
  - 6...O-O without 7. e4
D97
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4
  - without 7...Bg4
D98
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4
  - without 8. Be3
  - 8. Be3 without 8...Nfd7
  - 8...Nfd7 without 9. Qb3
D99
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Qb3
 
 
E
E0
1. d4 Nf6 2. c4 e6
  - without 3. Nf3, 3. Nc3
E1
1. d4 Nf6 2. c4 e6 3. Nf3
E2
1. d4 Nf6 2. c4 e6 3. Nc3
  - without 3...c5, 3...d5, 3...Bb4
  - 3...Bb4 without 4. Bg5, 4. Qc2, 4. e3
E3
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
  - 4. Bg5
  - 4. Qc2
E4
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3
  - without 4...O-O
  - 4...O-O without 5. Nf3
E5
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3
E6
1. d4 Nf6 2. c4 g6 without 3...d5
  - without 3. Nc3
  - 3. Nc3 without 3...d5, 3...Bg7
  - 3...Bg7 without 4. e4
E7
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4
  - without 4...d6
  - 4...d6 without 5. f3, 5. Nf3
E8
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3
E9
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3
 
 
E0
E00
1. d4 Nf6 2. c4 e6
  - without 3. g3, 3. Nf3, 3. Nc3
  - 3. g3 without 3...d5
  - 3...d5 without 4. Bg2
E01
1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2
  - without 4...dxc4, 4...Be7
E02
1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4
  - without 5. Qa4+, 5. Nf3
  - 5. Qa4+ without 5...Nbd7
  - 5...Nbd7 without 6. Qxc4
E03
1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4
E04
1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3
  - without 5...Be7
E05
1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7
E06
1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7
  - without 5. Nf3
  - 5. Nf3 without 5...O-O
  - 5...O-O without 6. O-O
  - 6. O-O without 6...Nbd7
E07
1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7
  - without 7. Qc2
E08
1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O Nbd7 7. Qc2
  - without 7...c6
  - 7...c6 without 8. Nbd2
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
E10
1. d4 Nf6 2. c4 e6 3. Nf3
  - without 3...Bb4, 3...b6
E11
1. d4 Nf6 2. c4 e6 3. Nf3 Bb4
E12
1. d4 Nf6 2. c4 e6 3. Nf3 b6
  - without 4. Nc3, 4. e3, 4. g3
  - 4. Nc3 without 4...Bb7
  - 4...Bb7 without 5. Bg5
  - 5. Bg5 without 5...h6
  - 5...h6 without 6. Bh4
  - 6. Bh4 without 6...Bb4
E13
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. Bg5 h6 6. Bh4 Bb4
E14
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3
E15
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3
  - without 4...Bb7
  - 4...Bb7 without 5. Bg2
  - 5. Bg2 without 5...Bb4+, 5...Be7
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
  - without 6. O-O
  - 6. O-O without 6...O-O
  - 6...O-O without 7. Nc3
E18
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3
  - without 7...Ne4
  - 7...Ne4 without 8. Qc2
  - 8. Qc2 without 8...Nxc3
  - 8...Nxc3 without 9. Qxc3
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 Nxc3 9. Qxc3
E2
E20
1. d4 Nf6 2. c4 e6 3. Nc3
  - without 3...c5, 3...d5, 3...Bb4
  - 3...Bb4 without 4. Nf3, 4. Qb3, 4. a3, 4. Bg5, 4. Qc2, 4. e3
E21
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3
E22
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3
  - without 4...c5
  - 4...c5 without 5. dxc5
  - 5. dxc5 without 5...Nc6
E23
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6
E24
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3
  - without 4...Bxc3+
  - 4...Bxc3+ 5. bxc3 without 5...c5, 5...O-O
  - 5...c5 without 6. f3, 6. e3
  - 6. f3 without 6...d5
  - 6...d5 without 7. cxd5
E25
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. f3 d5 7. cxd5
E26
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3
E27
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O
  - without 6. e3
E28
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3
  - without 6...c5
  - 6...c5 without 7. Bd3
  - 7. Bd3 without 7...Nc6
E29
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 O-O 6. e3 c5 7. Bd3 Nc6
E3
E30
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5
  - without 4...h6
  - 4...h6 without 5. Bh4
  - 5. Bh4 without 5...c5
  - 5...c5 without 6. d5
  - 6. d5 without 6...d6
E31
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 d6
E32
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2
  - without 4...Nc6, 4...d5, 4...c5
E33
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6
E34
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5
  - without 5. cxd5, 5. a3
  - 5. cxd5 without 5...exd5
E35
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 exd5
E36
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3
  - without 5...Bxc3+
  - 5...Bxc3+ without 6. Qxc3
  - 6. Qxc3 without 6...Ne4
E37
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4
E38
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5
  - without 5. dxc5
  - 5. dxc5 without 5...O-O
E39
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O
E4
E40
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3
  - without 4...c5, 4...b6, 4...O-O
E41
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5
  - without 5. Ne2
E42
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2
E43
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6
  - without 5. Ne2
E44
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2
  - without 5...Ba6
E45
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6
E46
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O
  - without 5. Bd3, 5. Nf3
E47
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3
  - without 5...d5
E48
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5
  - without 6. a3
  - 6. a3 without 6...Bxc3+
E49
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3
E5
E50
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3
  - without 5...d5
E51
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5
  - without 6. Bd3
  - 6. Bd3 without 6...b6, 6...c5
E52
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 b6
E53
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5
  - without 7. O-O
  - 7. O-O without 7...dxc4, 7...Nc6
E54
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O dxc4 8. Bxc4
  - without 8...Nbd7
E55
1. 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
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O Nc6
  - without 8. a3
  - 8. a3 without 8...dxc4, 8...Bxc3
  - 8...dxc4 without 9. Bxc4
  - 9. Bxc4 without 9...cxd4
E57
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bb3 c5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 cxd4
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 Bxc3 9. bxc3
  - without 9...dxc4
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 Bxc3 9. bxc3 dxc4 10. Bxc4
E6
E60
1. d4 Nf6 2. c4 g6
  - without 3. Nc3
E61
1. d4 Nf6 2. c4 g6 3. Nc3
  - without 3...d5, 3...Bg7
  - 3...Bg7 without 4. Nf3, 4. e4
  - 4. Nf3 without 4...d6
  - 4...d6 without 5. g3
E62
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3
  - without 5...O-O
  - 5...O-O without 6. Bg2
  - 6. Bg2 without 6...Nc6, 6...c5, 6...Nbd7
  - 6...Nc6 without 7. O-O
  - 7. O-O without 7...a6
E63
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 Nc6 7. O-O a6
E64
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 c5
  - without 7. O-O
E65
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 c5 7. O-O
  - without 7...Nc6
  - 7...Nc6 without 8. d5
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
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. g3 O-O 6. Bg2 Nbd7
  - without 7. O-O
  - 7. O-O without 7...e5
  - 7...e5 without 8. e4
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
  - without 8...c6
  - 8...c6 without 9. h3
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
E7
E70
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4
  - without 4...d6
  - 4...d6 without 5. h3, 5. g3, 5. Be2, 5. f4, 5. f3, 5. Nf3
E71
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3
E72
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. g3
E73
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2
  - without 5...O-O
  - 5...O-O without 6. Bg5
  - 6. Bg5 without 6...c5
E74
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5
  - without 7. d5
  - 7. d5 without 7...e6
E75
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. d5 e6
E76
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4
  - without 5...O-O
  - 5...O-O without 6. Be2
E77
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2
  - without 6...c5
  - 6...c5 without 7. Nf3
E78
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Be2 c5 7. Nf3
  - without 7...cxd4
  - 7...cxd4 without 8. Nxd4
  - 8. Nxd4 without 8...Nc6
  - 8...Nc6 without 9. Be3
E79
1. 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
E8
E80
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3
  - without 5...O-O
E81
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O
  - without 6. Be3
  - 6. Be3 without 6...b6, 6...Nc6, 6...e5
E82
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 b6
E83
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6
  - without 7. Nge2
  - 7. Nge2 without 7...a6
  - 7...a6 without 8. Qd2
  - 8. Qd2 without 8...Rb8
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
  - without 7. Nge2, 7. d5
  - 7. Nge2 without 7...c6
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
  - without 7...c6
E88
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5 7. d5 c6
  - without 8. Nge2
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
E9
E90
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3
  - without 5...O-O
  - 5...O-O without 6. Be2
E91
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2
  - without 6...e5
E92
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5
  - without 7. d5, 7. O-O
  - 7. d5 without 7...Nbd7
E93
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7
E94
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O
  - without 7...Nbd7, 7...Nc6
  - 7...Nbd7 without 8. Re1
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
  - without 8...c6
  - 8...c6 without 9. Bf1
  - 9. Bf1 without 9...a5
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
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6
  - without 8. d5
  - 8. d5 without 8...Ne7
  - 8...Ne7 without 9. Ne1
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
  - without 9...Nd7
  - 9...Nd7 without 10. f3
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
 

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