[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "13"]
[White "De Firmian, Nick E"]
[Black "Wilder, Michael"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2505"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. g3 Nxd4 7. Qxd4 Ne7 8. Bf4 Nc6 9. Qd2 b5 10. Bg2 Bb7 11. O-O Na5 12. b3 Rc8 13. Ne2 Nc6 14. Rfd1 Be7 15. Rac1 f6 16. c4 Ne5 17. cxb5 Rxc1 18. Nxc1 axb5 19. Nd3 Nxd3 20. Qxd3 e5 21. Be3 Bc6 22. Bh3 Qc7 23. a4 bxa4 24. bxa4 Bxa4 25. Ra1 Qc6 26. Qd5 Rf8 27. Bxd7+ Qxd7 28. Qa8+ 1/2-1/2