[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "De Firmian, Nick E"]
[Black "Seirawan, Yasser"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2580"]

1. d4 Nf6 2. c4 c5 3. Nf3 cxd4 4. Nxd4 b6 5. f3 a6 6. e4 Qc7 7. Nc3 e6 8. Be3 d6 9. Rc1 Bb7 10. Be2 Nbd7 11. O-O Be7 12. Qe1 O-O 13. g4 h6 14. h4 Nh7 15. Kg2 g5 16. hxg5 hxg5 17. Rh1 Rfe8 18. Qg3 Ndf8 19. Rh6 Bf6 20. Rch1 Be5 21. Qf2 Rab8 22. Nc2 Bc8 23. Nb4 f6 24. Nd3 Bxc3 25. bxc3 Re7 26. Nb4 Rg7 27. Bd3 a5 28. Nc2 1/2-1/2