C42White1 book lines continue
Classical Attack, Krause Variation
Petrov's Defense1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. Re1 Bg4 9. c3 f5 10. c4
Also known as Russian Game: Classical, Krause Variation, Petrov: classical attack, Krause variation.