Event: Las Vegas National Open 2023
Date: 2023-06-18
White: Corbin Gustafson
Black: Richard Bitoon
BlackTitle: GM
Result: 0-1
ECO: B27
Opening: Sicilian Defense: Katalimov Variation
Variant: Standard
TimeControl: G/90 +30 sec inc

1. e4 { [%eval 0.36] [%clk 1:30:36] } 1... c5 { [%eval 0.32] [%clk 1:30:51] } 2. Nf3 { [%eval 0.0] [%clk 1:30:50] } 2... b6?! { [%eval 0.78] } { Inaccuracy. d6 was best. } { [%clk 1:31:19] } 3. c4?! { [%eval 0.23] } { Inaccuracy. d4 was best. } { [%clk 1:30:05] } 3... Bb7 { [%eval 0.61] [%clk 1:31:29] } 4. Nc3 { [%eval 0.5] [%clk 1:30:11] } 4... d6 { [%eval 0.78] [%clk 1:31:14] } 5. d4 { [%eval 0.73] [%clk 1:30:00] } 5... cxd4 { [%eval 0.9] [%clk 1:27:28] } 6. Nxd4 { [%eval 0.82] [%clk 1:30:21] } 6... Nd7 { [%eval 0.97] [%clk 1:27:10] } 7. Be2 { [%eval 0.7] [%clk 1:22:15] } 7... Ngf6 { [%eval 0.77] [%clk 1:21:36] } 8. f3 { [%eval 0.79] [%clk 1:22:20] } 8... a6 { [%eval 0.82] [%clk 1:19:41] } 9. Be3 { [%eval 0.85] [%clk 1:21:11] } 9... e6 { [%eval 0.95] [%clk 1:19:53] } 10. Nc2 { [%eval 0.46] [%clk 1:14:56] } 10... Be7 { [%eval 0.43] [%clk 1:18:23] } 11. Qd2 { [%eval 0.44] [%clk 1:14:02] } 11... Qc7 { [%eval 0.52] [%clk 1:17:34] } 12. Rc1 { [%eval 0.5] [%clk 1:12:23] } 12... O-O { [%eval 0.5] [%clk 1:17:37] } 13. O-O { [%eval 0.51] [%clk 1:12:29] } 13... Rac8 { [%eval 0.45] [%clk 1:17:55] } 14. Rfd1 { [%eval 0.59] [%clk 1:12:04] } 14... Rfe8 { [%eval 0.49] [%clk 1:12:13] } 15. Bf1 { [%eval 0.63] [%clk 1:11:29] } 15... Qb8 { [%eval 0.54] [%clk 1:07:30] } 16. Kh1 { [%eval 0.5] [%clk 1:09:15] } 16... h6 { [%eval 0.62] [%clk 0:59:10] } 17. b3 { [%eval 0.56] [%clk 0:51:24] } 17... Qc7 { [%eval 0.47] [%clk 0:42:02] } 18. Nd4 { [%eval 0.54] [%clk 0:51:29] } 18... Nc5 { [%eval 0.6] [%clk 0:39:55] } 19. b4 { [%eval 0.63] [%clk 0:44:17] } 19... Ncd7 { [%eval 0.63] [%clk 0:39:20] } 20. a3 { [%eval 0.65] [%clk 0:40:49] } 20... h5 { [%eval 0.72] [%clk 0:31:35] } 21. Nb3 { [%eval 0.75] [%clk 0:37:04] } 21... h4 { [%eval 0.67] [%clk 0:26:44] } 22. Qf2 { [%eval 0.83] [%clk 0:36:25] } 22... h3 { [%eval 0.75] [%clk 0:23:16] } 23. g3 { [%eval 0.68] [%clk 0:35:59] } 23... Qb8 { [%eval 0.79] [%clk 0:23:30] } 24. Kg1?! { [%eval 0.0] } { Inaccuracy. Bd4 was best. } { [%clk 0:34:52] } 24... Ne5 { [%eval -0.11] [%clk 0:22:46] } 25. Na4 { [%eval -0.46] [%clk 0:30:21] } 25... b5 { [%eval -0.39] [%clk 0:07:44] } 26. Nb6 { [%eval -0.57] [%clk 0:29:45] } 26... Rcd8? { [%eval 0.6] } { Mistake. bxc4 was best. } { [%clk 0:03:18] } 27. cxb5?! { [%eval -0.45] } { Inaccuracy. Qe2 was best. } { [%clk 0:23:24] } 27... Bxe4 { [%eval -0.42] [%clk 0:02:50] } 28. Nd2 { [%eval -0.41] [%clk 0:20:37] } 28... Nxf3+ { [%eval -0.59] [%clk 0:01:03] } 29. Nxf3 { [%eval -0.44] [%clk 0:20:56] } 29... Ng4 { [%eval -0.5] [%clk 0:01:23] } 30. Qe2 { [%eval -0.51] [%clk 0:20:29] } 30... Nxe3 { [%eval -0.55] [%clk 0:00:38] } 31. Qxe3 { [%eval -0.42] [%clk 0:20:48] } 31... Bxf3 { [%eval -0.4] [%clk 0:01:04] } 32. Qxf3 { [%eval -0.5] [%clk 0:20:47] } 32... Qxb6+ { [%eval -0.4] [%clk 0:01:33] } 33. Qf2 { [%eval -0.57] [%clk 0:21:04] } 33... Qxf2+ { [%eval -0.47] } 34. Kxf2 { [%eval -0.51] [%clk 0:21:30] } 34... axb5 { [%eval -0.39] [%clk 0:01:05] } 35. Bxb5 { [%eval -0.48] [%clk 0:21:32] } 35... Rf8 { [%eval -0.53] [%clk 0:01:16] } 36. Rc7 { [%eval -0.55] [%clk 0:21:29] } 36... Rb8?! { [%eval 0.04] } { Inaccuracy. Bf6 was best. } { [%clk 0:00:37] } 37. Bc6?! { [%eval -0.57] } { Inaccuracy. Rxe7 was best. } { [%clk 0:21:35] } 37... Rfc8 { [%eval -0.67] [%clk 0:00:37] } 38. Rxc8+ { [%eval -0.56] [%clk 0:21:48] } 38... Rxc8 { [%eval -0.63] [%clk 0:01:06] } 39. b5 { [%eval -0.51] [%clk 0:22:17] } 39... d5 { [%eval -0.57] [%clk 0:01:22] } 40. a4 { [%eval -0.7] [%clk 0:21:28] } 40... Bd8 { [%eval -0.67] [%clk 0:01:51] } 41. Kf3 { [%eval -0.59] [%clk 0:17:06] } 41... Kf8 { [%eval -0.42] [%clk 0:02:18] } 42. Kg4 { [%eval -0.48] [%clk 0:16:23] } 42... Ke7 { [%eval -0.45] [%clk 0:02:46] } 43. Kxh3 { [%eval -0.43] [%clk 0:16:44] } 43... Bb6 { [%eval -0.46] [%clk 0:03:14] } 44. Ra1 { [%eval -0.62] [%clk 0:14:54] } 44... Ba5 { [%eval -0.73] [%clk 0:03:32] } 45. Kg2 { [%eval -0.64] [%clk 0:13:51] } 45... Kd6 { [%eval -0.41] [%clk 0:03:54] } 46. Rd1 { [%eval -0.5] [%clk 0:13:58] } 46... Rc7 { [%eval -0.5] [%clk 0:03:56] } 47. h4 { [%eval -0.54] [%clk 0:13:58] } 47... Ra7 { [%eval -0.46] [%clk 0:04:00] } 48. Rb1 { [%eval -0.62] [%clk 0:11:27] } 48... Bb6 { [%eval -0.58] [%clk 0:04:14] } 49. Ra1 { [%eval -0.63] [%clk 0:11:40] } 49... f5 { [%eval -0.53] [%clk 0:03:10] } 50. Kf3?! { [%eval -1.16] } { Inaccuracy. Be8 was best. } { [%clk 0:11:51] } 50... Ba5?! { [%eval -0.2] } { Inaccuracy. e5 was best. } { [%clk 0:00:49] } 51. g4 { [%eval -0.19] [%clk 0:11:51] } 51... fxg4+ { [%eval -0.19] [%clk 0:00:49] } 52. Kxg4 { [%eval -0.13] [%clk 0:12:18] } 52... Rf7 { [%eval -0.22] [%clk 0:00:40] } 53. Kg5 { [%eval -0.42] [%clk 0:08:18] } 53... Rf6 { [%eval -0.23] [%clk 0:00:52] } 54. Rd1 { [%eval -0.35] [%clk 0:07:45] } 54... Bd8 { [%eval -0.55] [%clk 0:01:08] } 55. Kg4 { [%eval -0.33] [%clk 0:07:03] } 55... Rg6+ { [%eval -0.38] [%clk 0:01:35] } 56. Kf3 { [%eval -0.2] [%clk 0:06:40] } 56... Rh6 { [%eval -0.31] [%clk 0:01:29] } 57. Rg1 { [%eval -0.16] [%clk 0:06:19] } 57... Rxh4 { [%eval -0.32] [%clk 0:00:37] } 58. Rxg7 { [%eval -0.2] [%clk 0:06:41] } 58... Ba5 { [%eval -0.25] [%clk 0:01:05] } 59. Rg4 { [%eval -0.56] [%clk 0:06:29] } 59... Rxg4?! { [%eval 0.0] } { Inaccuracy. Rh3+ was best. } { [%clk 0:01:31] } 60. Kxg4 { [%eval -0.14] [%clk 0:06:56] } 60... e5 { [%eval 0.0] [%clk 0:02:00] } 61. Kf3?! { [%eval -0.6] } { Inaccuracy. Kf5 was best. } { [%clk 0:02:14] } 61... e4+ { [%eval -0.54] [%clk 0:02:29] } 62. Ke2?? { [%eval -5.68] } { Blunder. Kf2 was best. } { [%clk 0:02:33] } 62... Bb6 { [%eval -6.34] [%clk 0:01:46] } 63. Bb7 { [%eval -6.64] [%clk 0:01:42] } 63... Ke5 { [%eval -7.42] [%clk 0:02:03] } 64. a5 { [%eval -7.4] [%clk 0:01:42] } 64... Bxa5 { [%eval -7.63] [%clk 0:02:27] } 65. b6 { [%eval -7.16] [%clk 0:02:05] } 65... Bxb6 { [%eval -8.29] [%clk 0:02:27] } 66. Bc6 { [%eval -7.84] [%clk 0:02:16] } 66... d4 { [%eval -8.5] [%clk 0:01:17] } 67. Bb5 { [%eval -7.19] [%clk 0:02:41] } 67... Ba5 { [%eval -8.18] [%clk 0:01:32] } 68. Ba6 { [%eval -8.0] [%clk 0:02:58] } 68... Bc3 { [%eval -8.06] [%clk 0:01:47] } 69. Bb5 { [%eval -8.28] [%clk 0:02:29] } 69... Ba5 { [%eval -7.17] [%clk 0:01:38] } 70. Ba6 { [%eval -7.78] [%clk 0:02:49] } 70... Bd8 { [%eval -7.95] [%clk 0:01:59] } 71. Bb5 { [%eval -6.6] [%clk 0:01:23] } 71... Bg5 { [%eval -7.57] [%clk 0:02:24] } 72. Ba6 { [%eval -7.2] [%clk 0:01:41] } 72... Bf4 { [%eval -8.53] [%clk 0:02:32] } 73. Bb5 { [%eval -9.7] [%clk 0:01:48] } 73... Kd5 { [%eval -9.14] [%clk 0:02:49] } 74. Ba6 { [%eval -9.79] [%clk 0:02:04] } 74... Kc5 { [%eval -10.07] [%clk 0:03:12] } 75. Ke1 { [%eval -9.5] } 0-1