1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. Bd2 O-O

7... d5!? is more complicated than you might suppose: 8. exd5 Nxd5 9. Nxd5 Qxd5 10. Bxb4 Qe4+ 11. Qe2 Qxb4+ 12. c3 Qe7 13. Qe3=

 

8. Qf3 Nc6 9. O-O-O d5?

The losing move, which pitches a pawn. Black figures, incorrectly, that he deserves more out of the opening than a slight edge after 9... d6! 10. Nd5 (10. h3!? Be6 11. g4!? a5! 12. g5 Nd7 13. Nd5 a4!!) 10... Nxd5 11. exd5 Bxd2+ 12. Rxd2 Na5

 

10. Nxd5! Nxd5

10... Bg4?? 11. Nxf6+ Qxf6 12. Qxg4

 

11. exd5 Bxd2+ 12. Rxd2 Ne7 13. Bd3 f5 14. d6! Ng6

14... e4? 15. Bc4+ Kh8 16. dxe7

 

15. Qd5+ Kh8 16. Rhd1

16. Nc5!

 

16... e4 17. Bf1 Qg5 18. Kb1

18. d7! Rd8 19. dxc8=Q

 

18... Nf4 19. Qa5 Bd7 20. Nc5 b6 21. Qxb6 Rfb8 22. Qc7 Qf6 23. b3 Rc8 24. Qxd7

24. Nxd7!

 

24... Rxc5 25. Qb7 Rd8 26. Qb6 Rc3 27. Qa5 Ne6 28. d7 Nc5? 29. Rd4

29. Rd6!

 

29... Ne6 30. Qxc3 Nxd4 31. Qxd4 1-0