[Event "United States Championship"]
[Site "Stillwater, OK USA"]
[Date "2007.05.16"]
[EventDate "2007.05.15"]
[Round "2"]
[Result "1/2-1/2"]
[White "Michael Aigner"]
[Black "Robert Lee Hess"]
[ECO "A07"]
[WhiteElo "2260"]
[BlackElo "2412"]
[PlyCount "163"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 Rb8 6. f4 b5
7. Nf3 d6 8. O-O Nd4 9. h3 b4 10. Nd5 e6 11. Ne3 Ne7 12. g4 f5
13. a3 b3 14. c3 Nxf3+ 15. Qxf3 O-O 16. Qd1 Ba6 17. Rf2 Qd7
18. a4 fxg4 19. hxg4 d5 20. exd5 exd5 21. Nf1 d4 22. c4 Bc8
23. Bf3 Bh6 24. g5 Bg7 25. Ng3 Nf5 26. Bd5+ Kh8 27. Nxf5 Rxf5
28. Qf3 Bb7 29. Bxb7 Rxb7 30. Bd2 Rb8 31. Re2 Bf8 32. Re5 Bd6
33. Rxf5 Qxf5 34. Qe4 Qh3 35. Rf1 Rf8 36. Qf3 Qf5 37. Qe4 Qd7
38. Re1 Bxf4 39. Bxf4 Qg4+ 40. Kh1 Qxf4 41. Qxf4 Rxf4 42. Re7
Rf3 43. Rc7 Rxd3 44. Rxc5 Rc3 45. Kg2 a6 46. Rc6 Rc2+ 47. Kf3
Rxb2 48. Ke4 a5 49. Kxd4 Rg2 50. Rb6 Rg4+ 51. Kd5 Rxg5+
52. Kd6 Rg4 53. c5 Rb4 54. Rxb4 axb4 55. c6 b2 56. c7 b1=Q
57. c8=Q+ Kg7 58. Qd7+ Kf6 59. Qe6+ Kg5 60. Qe3+ Kg4 61. Qe2+
Kf4 62. Qf2+ Ke4 63. Qe2+ Kd4 64. Qe5+ Kc4 65. a5 Qd3+ 66. Kc6
Kb3 67. Qd5+ Qxd5+ 68. Kxd5 Kc2 69. a6 b3 70. a7 b2 71. a8=Q
b1=Q 72. Ke5 Qb5+ 73. Kf4 Qf5+ 74. Ke3 Qe5+ 75. Kf3 Qc3+
76. Kf4 Qd4+ 77. Kf3 Kd3 78. Qa6+ Kc3 79. Qa1+ Kc4 80. Qa4+
Kd5 81. Qd7+ Ke5 82. Qg7+ 1/2-1/2