1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. Kb1 h6 10. Bh4 Nxe4 11. Nxe4 Qxh4 12. Nxd6+ Bxd6 13. Nf3 Qa4 14. b3 Qa3 15. Qxd6 Qxd6 16. Rxd6 Ke7 17. Rd2 Rhd8 18. Be2 e5 19. Rhd1 Be6 20. c4 Rxd2 21. Rxd2 a5 22. a3 g5 23. h3 f5 24. Kb2 Rg8 25. Ne1 Nd4 26. Nd3 Kf6 27. Kc3 Nxe2+ 28. Rxe2 e4 29. Nc5 b6 30. Nxe6 Kxe6 31. Rd2 g4 32. hxg4 Rxg4 33. g3 h5 34. Rd8 h4 35. gxh4 Rxh4 36. Rb8 Rh3+ 37. Kc2 Rh2 38. Rxb6+ Kd7 39. Rb5 Rxf2+ 40. Kd1 e3 41. Rxa5 f4 42. Re5 Ra2 43. a4?!

43. Ke1= or 43. Rf5= would be much more straightforward.

43... f3 44. Rxe3 Ra1+ 45. Kc2 f2 46. Rf3 f1=Q 47. Rxf1 Rxf1= 48. Kc3?

The Nalimov tablebases show that 48. a5 and 48. b4 are the only moves that draw.

48... Rf3+ 49. Kb4 Kc6 50. a5 Rh3 51. Ka4 Kc5 52. b4+ Kxc4?

52... Kc6 and 52... Kd6 are the only moves that win.

53. a6= Rh6 54. Ka5 Rh5+ 55. Kb6 Kxb4 56. a7 Rh6+ 57. Kb7 Kb5 58. a8=Q Rh7+ 59. Kc8 Rh8+ 60. Kb7 Rh7+ 61. Kc8 Rh8+ 62. Kb7

1/2-1/2

Event information: Tournament report.

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