[Event "Petrov's Defense"]
[Site "https://chessily.com/openings/"]
[Result "*"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 (3. d4 exd4 (3... Nxe4 4. Bd3 Nc6 (4... d5 5. Nxe5 Bd6 6. O-O O-O 7. c4 Bxe5)) (3... d5) 4. e5 Ne4 5. Qe2 (5. Qxd4) (5. Bb5) Nc5 6. Nxd4 Nc6) (3. Bc4) (3. Qe2 Nc6 4. d4) (3. Nc3) d6 (3... Nc6 4. Nxc6 dxc6 5. Nc3 (5. d3 Bc5) Bc5) (3... Nxe4 4. Qe2 Qe7) 4. Nf3 (4. Nxf7 Kxf7 5. Bc4+ (5. d4)) (4. Nd3) (4. Nc4) Nxe4 5. d4 (5. Qe2) (5. d3) (5. c4) (5. Bd3) (5. Nc3) d5 (5... Nf6) 6. Bd3 Nc6 (6... Bd6 7. O-O O-O 8. c4 Bg4 (8... c6 9. Re1 Bg4) 9. cxd5 f5 10. Re1 Bxh2+) (6... Be7 7. O-O Nc6 (7... O-O) 8. Re1 Bg4 9. c3 f5 10. Nbd2 (10. c4 Bh4)) 7. O-O Be7 8. c4 (8. Re1 Bg4 9. c3 f5 10. c4) Nb4 9. cxd5 (9. Be2) *
