1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 g6 7. Nf3 d6 8. e4 Bxf1 9. Kxf1 Bg7 10. g3 O-O 11. Kg2 Nbd7 12. h3 Qa5 13. Qc2 Rfb8 14. Bd2 Qa6 15. a4 Qc4 16. Ra3 Rb7 17. Re1 Rab8 18. Bc1 Ne8 19. Nd2 Qa6 20. Nb5 Nc7 21. Nxc7 Rxc7 22. Nc4 Ne5 23. Nxe5 Bxe5 24. Qe2 c4 25. Rd1 Rcb7 26. Ra2 Rb3 27. a5 R3b4 28. Rd2 Qb5 29. a6 Ra8 30. a7 Qc5 31. Rc2 Rxa7 32. Rxa7 Qxa7 33. Rxc4 Qa6 34. Rc2 Qb7 35. h4 Bg7 36. Rc4 Rxc4 37. Qxc4 Bxb2 38. Qc6 Qb4 39. Qe8+ Kg7 40. Bxb2+ Qxb2 41. Qxe7 Qb4 42. g4 h6 43. g5 hxg5 44. hxg5 Kg8 45. Qd8+ Kg7 46. Qf6+ Kf8 47. Qf4 Kg8 48. Qe3 Qc4 49. Kg3 Qf1 50. Kh2 Qd1 51. Qf4 Qd4 52. Kg2 Qc5 53. Qd2 Qc4 54. f3 Kf8 55. Qb2 Qc5 56. Qh8+ Ke7 57. Qf6+ Ke8 58. Qh8+ Kd7??

Black needed a win to share first place, so was presumably seeking a way to avoid the perpetual. But the move played loses instantly to 59. Qf8. This unusual incident caused considerable comment at the time, and indeed long after.

59. Qf6 Ke8 60. Qh8+ Ke7 61. Qf6+ Kf8?!

This also loses but not in as clear-cut a way as in the previous note.

62. Qh8+

62. e5 Qc2+ 63. Kg3 Qd1! 64. exd6! (64. Qxd6+?=) is winning for White but would need work, and with time short and queens on there is always the possibility of a losing error. In the tournament circumstances, it seems a reasonable risk for Black to take.

62... Ke7 63. Qf6+

1/2-1/2

Source(s): Chess-Results.com.

Event information: Tournament report.