1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 (Diagram) 5... Nxe4 fails to 5... Bd7 leads to well known lines 6. d5 a6 7. Bd3 Nf6 8. dxc6 e4 9. Re1 d5 10. Be2 exf3 11. cxb7 Bxb7 12. Bb5# *