[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "Wilder, Michael"]
[Black "De Firmian, Nick E"]
[Result "1-0"]
[WhiteElo "2465"]
[BlackElo "2490"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 Bg7 8. e4 O-O 9. Be2 Na6 10. O-O Nc7 11. a4 Nd7 12. Nc4 Ne5 13. Bf4 Nxc4 14. Bxc4 Re8 15. Qd3 h5 16. Rae1 a6 17. a5 Rb8 18. h3 b5 19. axb6 Rxb6 20. Na4 Rb7 21. e5 dxe5 22. Be3 e4 23. Qd1 Bd7 24. Nxc5 Rxb2 25. Bf4 Nb5 26. Nxe4 Rb4 27. Bd3 Nc3 28. Qf3 Nxd5 29. Bg5 Qb6 30. Bd2 Rb3 31. Ng5 Nf6 32. Rb1 Rxb1 33. Rxb1 Qd4 34. Rb3 Bb5 35. Bxb5 axb5 36. Bc3 Qc4 37. Rb4 Qd5 38. Bxf6 Qxf3 39. Nxf3 Bxf6 40. Rxb5 1-0