[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "4"]
[White "De Firmian, Nick E"]
[Black "Seirawan, Yasser"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2600"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Bd3 e5 6. dxe5 dxe5 7. f5 gxf5 8. exf5 e4 9. Nxe4 Bxf5 10. Nxf6+ Qxf6 11. Qe2+ Be6 12. Nf3 Nc6 13. O-O O-O-O 14. Ng5 Qd4+ 15. Be3 Qxb2 16. Rab1 Nd4 17. Qh5 Qxa2 1/2-1/2