1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 Nf6 6. Nc3 Nd4 B31.04.20 6... O-O is better. 7. e5 Ng8 8. d3 Nxb5 9. Nxb5 a6 (Diagram) 10. Nd6+ 10. Nc3 10... exd6 11. Bg5 Qa5 12. exd6+ Kf8 13. Re8+ Kxe8 14. Qe2+ Kf8 15. Be7+ Ke8 16. Bd8+ Kxd8 17. Ng5 mates *