[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "13"]
[White "Kogan, Boris Markovich"]
[Black "Whitehead, Jay E"]
[Result "1-0"]
[WhiteElo "2460"]
[BlackElo "2415"]

1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 a5 5. Bg2 d6 6. Nc3 e5 7. Nf3 exd4 8. Nxd4 Nbd7 9. Nd5 Bxd2+ 10. Qxd2 c6 11. Qe3+ Kf8 12. Nxf6 Qxf6 13. O-O h5 14. Rad1 Ne5 15. b3 h4 16. Qf4 hxg3 17. hxg3 Qg6 18. f3 Qh6 19. Kf2 Qxf4 20. gxf4 Ng6 21. Kg3 a4 22. b4 Ke7 23. Rd3 a3 24. e4 Ra4 25. Nc2 Be6 26. Rc3 f5 27. Re1 Kd8 28. Nd4 Bd7 29. Rb1 Rf8 30. Bh3 fxe4 31. Bxd7 Kxd7 32. f5 Ne5 33. fxe4 g6 34. Kf4 Rh8 35. Nf3 gxf5 36. exf5 Nxf3 37. Rxf3 Rh2 38. Rg1 Rxa2 39. Rg7+ Ke8 40. f6 1-0