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Chess Opening Database

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Example Searches: Queens gambit, B33, d4 d5

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

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

Ruy Lopez diagram

Ruy Lopez (C92)

Closed, Keres (9...a5) 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 a5

Ruy Lopez diagram

Ruy Lopez (C96)

Closed, Keres (...Nd7) defense

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 Nd7

QGD diagram

QGD (D38)

Ragozin variation

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4

QGD diagram

QGD (D39)

Ragozin, Vienna variation

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4 5. Bg5 dxc4

Nimzo-Indian diagram

Nimzo-Indian (E51)

4.e3, Ragozin variation

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 Nc6 7. O-O dxc4

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

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 (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

KGD diagram

KGD (C32)

Falkbeer, Keres variation

1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. Nd2

Sicilian diagram

Sicilian (B20)

Keres variation (2.Ne2)

1. e4 c5 2. Ne2

English, Keres variation diagram

English, Keres variation (A21)

1. c4 e5 2. Nc3 d6 3. g3 c6

Nimzo-Indian diagram

Nimzo-Indian (E53)

4.e3, Keres variation

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3 d5 6. Bd3 c5 7. O-O b6

Reti accepted diagram

Reti accepted (A09)

Keres variation

1. Nf3 d5 2. c4 dxc4 3. e3 Be6

Gruenfeld diagram

Gruenfeld (D98)

Russian, Keres variation

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. Be2 Nb6 10. Qd3 Nc6 11. O-O-O