Ruy Lopez (C66)

Closed Berlin defense, Chigorin variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Nd7

Ruy Lopez (C97)

Closed, Chigorin 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 Qc7

Ruy Lopez (C66)

Closed Berlin defense, Showalter variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 7. Bxc6

Ruy Lopez (C66)

Closed Berlin defense, Wolf variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 exd4

Ruy Lopez (C66)

Closed Berlin defense, Bernstein variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 7. Bg5

Ruy Lopez (C98)

Closed, Chigorin, 12...Nc6

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

Ruy Lopez (C99)

Closed, Chigorin, 12...c5d4

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 cxd4 13. cxd4

Ruy Lopez (C97)

Closed, Chigorin, Yugoslav system

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 Bd7 13. Nf1 Rfe8 14. Ne3 g6

Ruy Lopez (C98)

Closed, Chigorin, Rauzer attack

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 13. dxc5

QGD (D07)

Chigorin defense, Janowski variation

1. d4 d5 2. c4 Nc6 3. Nc3 dxc4 4. Nf3

QGD (D07)

Chigorin defense

1. d4 d5 2. c4 Nc6

QGD Semi-Slav (D46)

Chigorin defense

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Bd3 Bd6

Ruy Lopez (C65)

Berlin defense, Duras variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. c4

Ruy Lopez (C65)

Berlin defense, Kaufmann variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Be3

KGA (C39)

Kieseritsky, Berlin defense, Riviere variation

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Nxg4 d5

Ruy Lopez (C67)

Berlin defense, Rio de Janeiro variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. Nc3 O-O 10. Re1 Nc5 11. Nd4 Ne6 12. Be3 Nxd4 13. Bxd4 c5

Ruy Lopez (C65)

Berlin defense, Beverwijk variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Bc5

Ruy Lopez (C67)

Berlin defense, Open variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4

Ruy Lopez (C66)

Berlin defense, hedgehog variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7

Ruy Lopez (C67)

Berlin defense, Zukertort variation

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. c4