1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 O-O 6. Be2 b6 7. Nbd2 Bb7 8. O-O Nbd7 9. c4 slightly inaccurate - 9. a4 is best with whites c4 pawn going to c3, allowing his queen or bishop to use the a2-g8 diagonal 9... Ne4 10. Nxe4 Bxe4 11. Nd2 Bb7 12. Bf3 Bxf3 13. Nxf3 e5 14. Bh2 Qe7 15. Qb3 e4 16. Nd2 c5! 17. d5 f5 18. f3 exf3 19. Nxf3 Rfe8 20. Rae1 Bh6 21. Kh1 Nf6 22. Bf4 Bxf4 23. exf4 Ne4 24. Kh2 Qf6 25. Qb5 Re7 26. Qc6 Rae8 27. Ng5 Qxb2 27... Nxg5 28. Qxe8+ Rxe8 29. Rxe8+ Kf7 30. fxg5 Qxg5 31. Rfe1 f4 is also good for black 28. Nxe4 fxe4 29. Qxd6 e3 30. f5 e2 31. Rf3 Qd2 32. Qg3 Rf8 33. fxg6 Rxf3 34. gxh7+ Kxh7 35. Qh4+ Kg8 36. gxf3 Rg7 37. Qd8+ 37. f4 Qe3! 37. Qf2 Qf4+ 38. Kh1 Rg3! wins for black 37... Kh7 1/2-1/2