[Event "USA-ch"]
[Site "Berkeley"]
[Date "1984.??.??"]
[Round "4"]
[White "De Firmian, Nick E"]
[Black "Gurevich, Dmitry"]
[Result "1/2-1/2"]
[WhiteElo "2515"]
[BlackElo "2545"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 Qb6 7. Ndb5 a6 8. Be3 Qa5 9. Nd4 Ng4 10. Nxc6 bxc6 11. Bd2 g6 12. Qe2 Bg7 13. Bb3 O-O 14. f4 Qb6 15. h3 Nf6 16. O-O-O a5 17. e5 dxe5 18. fxe5 Nh5 19. Rhe1 Ng3 20. Qf3 Nf5 21. Na4 Qb5 22. Bf4 e6 23. g4 Ne7 24. c4 Qb4 25. Bd2 Qb7 26. Bg5 Rb8 27. Qf2 c5 28. Nxc5 Qc7 29. Ne4 h6 30. Nf6+ Bxf6 31. Bxf6 Nd5 32. Rxd5 exd5 33. Qh4 Kh7 34. Be7 dxc4 35. Bd6 Qd8 36. Be7 Qd4 37. Bxf8 Qf4+ 38. Kb1 Bf5+ 39. Ka1 Rxf8 40. Qe7 cxb3 41. Qxf8 Be6 42. Qc5 a4 1/2-1/2