[Event "USA-ch/Zonal"]
[Site "South Bend"]
[Date "1981.??.??"]
[Round "8"]
[White "Kavalek, Lubomir"]
[Black "Kogan, Boris Markovich"]
[Result "0-1"]
[WhiteElo "2550"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. a3 Bxc3+ 6. bxc3 c5 7. Nf3 b6 8. Bb5+ Bd7 9. Bd3 c4 10. Bf1 Ba4 11. g3 Nbc6 12. Bg2 Qd7 13. Ng5 f6 14. Nf3 f5 15. h4 O-O-O 16. h5 Ng8 17. Bg5 Rf8 18. Qd2 Nh6 19. Ke2 Nf7 20. Bf4 Rfg8 21. Rag1 Qe7 22. Qc1 g5 23. hxg6 hxg6 24. Rxh8 Rxh8 25. Kd1 a5 26. Ng5 Na7 27. Nxf7 Qxf7 28. Qa1 g5 29. Bc1 f4 30. g4 Rh2 31. Ke1 Qh7 32. Bf3 Rh3 33. Bg2 Qxc2 34. f3 Rh2 35. Qb2 Kb7 36. Qxc2 Bxc2 37. Kf2 Ka6 38. a4 Bxa4 39. Ba3 Nc6 40. Rb1 Bc2 41. Rb2 Bb3 42. Kg1 Rh8 43. Bf1 b5 44. Bc5 Kb7 45. Bd3 cxd3 46. Rxb3 Ka6 47. Rb2 b4 48. cxb4 axb4 49. Rb3 Kb5 50. Rxd3 Nxe5 51. Rb3 Nc6 52. Rb1 e5 53. Bd6 exd4 54. Rc1 Rd8 55. Rc5+ Kb6 56. Rxd5 b3 57. Bc5+ Kc7 0-1