[Event "USA-ch"]
[Site "Estes Park"]
[Date "1987.??.??"]
[Round "6"]
[White "De Firmian, Nick E"]
[Black "Christiansen, Larry Mark"]
[Result "1/2-1/2"]
[WhiteElo "2485"]
[BlackElo "2575"]

1. e4 e6 2. d4 d5 3. Nc3 Nc6 4. Nf3 Nf6 5. exd5 exd5 6. Bb5 Bb4 7. O-O O-O 8. Bxc6 bxc6 9. Ne5 Bxc3 10. bxc3 Ne4 11. f3 Nxc3 12. Qd2 Nb5 13. a4 Nd6 14. Nxc6 Qf6 15. Qg5 Qxg5 16. Bxg5 f6 17. Bf4 Bb7 18. Na5 Ba6 19. Rfe1 Rfe8 20. Nb3 1/2-1/2