[Event "USA-ch"]
[Site "Estes Park"]
[Date "1985.??.??"]
[Round "7"]
[White "Christiansen, Larry Mark"]
[Black "De Firmian, Nick E"]
[Result "1-0"]
[WhiteElo "2560"]
[BlackElo "2540"]

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. e3 d5 5. cxd5 exd5 6. Be2 Nc6 7. O-O cxd4 8. exd4 Be7 9. Ne5 Nxe5 10. dxe5 Ne4 11. Bb5+ Kf8 12. Nd2 Qb6 13. Nxe4 dxe4 14. Qe2 Be6 15. Be3 Bc5 16. Rad1 Bxe3 17. fxe3 Ke7 18. Rd6 Qc5 19. Qf2 Qxb5 20. Rxe6+ fxe6 21. Qf7+ Kd8 22. Rd1+ Qd3 23. Rxd3+ exd3 24. Qxe6 Rc8 25. Qd6+ Ke8 26. Qxd3 Rc1+ 27. Kf2 Rc6 28. Ke2 a6 29. Qd5 Ke7 30. e6 Rxe6 31. Qxb7+ Kf6 32. Qf3+ Ke7 33. b4 h6 34. Qb7+ Kf6 35. a4 Rd8 36. g4 Rd4 37. Qf3+ Ke7 38. Qf5 Rdd6 39. h4 Rc6 40. Qd5 Rc2+ 41. Kf3 Rf6+ 42. Kg3 Rcc6 43. Qe5+ Kf7 44. g5 hxg5 45. hxg5 Rfe6 46. Qd5 Rd6 47. Qf5+ Ke7 48. Qc5 g6 49. Kf4 Kd7 50. Qa7+ Ke8 51. Qb8+ Rd8 52. Qc7 Rd7 53. Qc8+ Ke7 54. e4 Rd1 55. Qc7+ Ke8 56. Qc4 Ke7 57. e5 Ra1 58. Qc7+ Ke8 59. Ke4 Re1+ 60. Kd5 Re7 61. Qc6+ Kd8 62. Qb6+ Kd7 63. Qd6+ Ke8 64. Qxg6+ Kf8 65. Qf6+ Ke8 66. e6 Rd1+ 67. Kc6 Rc1+ 68. Kb6 Rec7 69. g6 a5 70. g7 R1c6+ 71. Kb5 Rc5+ 72. bxc5 Rxc5+ 73. Kb6 Rc6+ 74. Kxa5 Ra6+ 75. Kb4 Rxa4+ 76. Kb3 Rg4 77. Qf8# 1-0