[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "4"]
[White "Kogan, Boris Markovich"]
[Black "Kudrin, Sergey"]
[Result "1/2-1/2"]
[WhiteElo "2460"]
[BlackElo "2515"]

1. Nf3 Nf6 2. c4 c5 3. d4 cxd4 4. Nxd4 b6 5. Nc3 Bb7 6. f3 d6 7. e4 e6 8. Be2 g6 9. O-O Nbd7 10. Be3 Be7 11. Qd2 O-O 12. Rfd1 Qc7 13. Rac1 Rac8 14. Bf1 Qb8 15. Qf2 Rfe8 16. Kh1 Bd8 17. Rc2 Ne5 18. b3 h6 19. Rdc1 Nfd7 20. Qd2 Bf6 21. Nde2 Bd8 22. Ng3 Nf6 23. Qf2 Ba8 1/2-1/2