C42: Petrov three knights game

C42 Sub-variants:

• Petrov's defence
  1. e4 e5 2. Nf3 Nf6
• Petrov, French attack
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d3
• Petrov, Kaufmann attack
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. c4
• Petrov, Nimzovich attack
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3
• Petrov, Cozio (Lasker) attack
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2
• Petrov, classical attack
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4
• Petrov, classical attack, Chigorin variation
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1
• Petrov, classical attack, Berger variation
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. Nbd2
• Petrov, classical attack, Krause variation
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. c4
• Petrov, classical attack, Maroczy variation
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. c4 Bh4
• Petrov, classical attack, Jaenisch variation
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. c4
• Petrov, classical attack, Mason variation
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O
• Petrov, classical attack, Marshall variation
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6
• Petrov, classical attack, Tarrasch variation
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 Bg4
• Petrov, classical attack, Marshall trap
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 Bg4 9. cxd5 f5 10. Re1 Bxh2+
• Petrov, classical attack, close variation
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Nf6
• Petrov, Cochrane gambit
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7
• Petrov, Paulsen attack
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nc4
• Petrov, Damiano variation
  1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4
• Petrov three knights game
  1. e4 e5 2. Nf3 Nf6 3. Nc3
• Petrov, Italian variation
  1. e4 e5 2. Nf3 Nf6 3. Bc4