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Chess Opening Database

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Example Searches: Queens gambit, B33, d4 d5

King's Indian diagram

King's Indian (E92)

Petrosian system

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5

Queen's Indian diagram

Queen's Indian (E12)

Petrosian system

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3

King's Indian diagram

King's Indian (E93)

Petrosian system, Main line

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7

King's Indian diagram

King's Indian (E92)

Petrosian system, Stein variation

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 a5

King's Indian diagram

King's Indian (E93)

Petrosian system, Keres variation

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7 8. Bg5 h6 9. Bh4 g5 10. Bg3 Nh5 11. h4

QGD diagram

QGD (D55)

Petrosian variation

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bxf6 Bxf6 8. Rc1 c6 9. Bd3 Nd7 10. O-O dxc4 11. Bxc4

QGD diagram

QGD (D31)

Charousek (Petrosian) variation

1. d4 d5 2. c4 e6 3. Nc3 Be7

French diagram

French (C16)

Winawer, Petrosian variation

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Qd7

Ruy Lopez diagram

Ruy Lopez (C92)

Closed, Ragozin-Petrosian (`Keres') 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 Nd7

Lengfellner system diagram

Lengfellner system (C00)

1. e4 e6 2. d4 d6

Colle system diagram

Colle system (D05)

1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3

Old Benoni diagram

Old Benoni (A43)

Schmid's system

1. d4 c5 2. d5 d6 3. Nc3 g6

Pirc diagram

Pirc (B08)

Classical system, 5.Be2

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2

Pirc diagram

Pirc (B08)

Classical, h3 system

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3

Pirc diagram

Pirc (B07)

Holmov system

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4

Pirc diagram

Pirc (B07)

Sveshnikov system

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. g3

English diagram

English (A28)

Four knights system

1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6

English diagram

English (A27)

Three knights system

1. c4 e5 2. Nc3 Nc6 3. Nf3

English diagram

English (A26)

Botvinnik system

1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. e4

English diagram

English (A26)

Closed system

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