[Event "USA-ch"]
[Site "Greenville"]
[Date "1983.??.??"]
[Round "2"]
[White "De Firmian, Nick E"]
[Black "Kogan, Boris Markovich"]
[Result "1-0"]
[WhiteElo "2475"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 Ne7 5. Nf3 b6 6. Bd3 Ba6 7. O-O Bxc3 8. bxc3 Bxd3 9. cxd3 Nd7 10. Re1 h6 11. Nh4 g6 12. Ba3 c5 13. Qg4 Qc8 14. dxc5 Qa6 15. c6 Nxc6 16. Bd6 Qxd3 17. Nf3 Nc5 18. Qh4 Ne4 19. Rad1 Qc4 20. Rxe4 Qxe4 21. Qf6 Rh7 22. Nd4 Kd7 23. Nxc6 Kxc6 24. Qe7 Rc8 25. Qxa7 g5 26. c4 Qc2 27. cxd5+ exd5 28. Rf1 f6 29. Qa3 Kb7 30. Qf3 fxe5 31. Qxd5+ Qc6 32. Qxe5 Rd7 33. Bb4 Qd5 34. Qe3 Qxa2 35. h3 Qd5 36. Ra1 Rc6 37. Qa3 Rcc7 38. Qa8# 1-0