[Event "USA-ch/Zonal"]
[Site "South Bend"]
[Date "1981.??.??"]
[Round "7"]
[White "Kogan, Boris Markovich"]
[Black "Kudrin, Sergey"]
[Result "1-0"]
[BlackElo "2425"]

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Nd2 a6 7. Nxc4 b5 8. Qc2 Nd5 9. Ne3 Bb4+ 10. Bd2 Nxe3 11. fxe3 Bxd2+ 12. Qxd2 Rb8 13. Rc1 O-O 14. Nh3 Nf6 15. Nf2 Bb7 16. Bxb7 Rxb7 17. e4 Rb6 18. e5 Nd5 19. O-O f5 20. Nd3 Rf7 21. Rc5 g5 22. Nb4 Nxb4 23. Qxb4 f4 24. Qc3 b4 25. Qd3 Rb5 26. Rxb5 axb5 27. Qe4 Rd7 28. gxf4 Rxd4 29. Qc6 Rxf4 30. Qxe6+ Kh8 31. Rxf4 gxf4 32. Qf5 Qd4+ 33. Kg2 Kg7 34. Qf6+ Kg8 35. Qe6+ Kf8 36. Qc8+ Ke7 37. Qxc7+ Ke6 38. Qxh7 Qxe5 39. Qg6+ Ke7 40. Qh7+ Ke6 41. Qg6+ Ke7 42. Qc2 Qd5+ 43. Kf2 Qd4+ 44. Kf1 Kf6 45. Qc6+ Kg7 46. Qxb5 Qe4 47. Qc5 Qb1+ 48. Kf2 Qxb2 49. Qg5+ Kh7 50. Qf5+ Kh8 51. Qf8+ Kh7 52. Qf7+ Kh8 53. Qxf4 Qxa2 54. Qf8+ Kh7 55. Qxb4 Qa7+ 56. Kf3 Qf7+ 57. Qf4 Qh5+ 58. Kf2 Qc5+ 59. Kf1 Qc2 60. Kf2 Qc5+ 61. e3 Qc1 62. Kg3 Qg1+ 63. Kh4 Qb1 64. e4 Qe1+ 65. Kg5 Qg1+ 66. Kh5 Qd1+ 67. Qg4 Qd6 68. Qf5+ Kg7 69. h4 Qh6+ 70. Kg4 Kh8 71. Qh5 1-0