[Event "USA-ch"]
[Site "Estes Park"]
[Date "1986.??.??"]
[Round "?"]
[White "De Firmian, Nick E"]
[Black "Christiansen, Larry Mark"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2560"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Be6 10. d4 Bxb3 11. Qxb3 d5 12. exd5 Na5 13. Qc2 exd4 14. cxd4 Nxd5 15. Nc3 Nxc3 16. Qxc3 Nc4 17. Bf4 a5 18. Re2 Bd6 19. Bxd6 cxd6 20. b3 Nb6 21. Rae1 b4 22. Qc6 Rc8 23. Qb5 Nd7 24. Re7 Ne5 25. Qb7 Rb8 26. Qc7 Nxf3+ 27. gxf3 g6 28. Kf1 Rb5 29. Rxf7 Qxc7 30. Rxc7 Rf7 31. Re8+ Kg7 32. Ree7 Rf5 33. Ke2 Rxf3 34. Rxf7+ Rxf7 35. Rc6 Re7+ 36. Kf3 Rf7+ 37. Ke3 Re7+ 38. Kf3 Rf7+ 39. Kg3 Re7 40. Ra6 Re4 41. Rxa5 Rxd4 42. Ra7+ Kh6 43. h4 d5 44. f3 Rd2 45. Ra4 g5 46. Rxb4 1/2-1/2