Event: 32nd Annual North American Open
Site: ChessKast.com
Date: 2022-12-26
White: Andrew Jiang
Black: Viktor Matviishen
Result: 0-1
ECO: B92
Opening: Sicilian Defense: Najdorf Variation, Opocensky Variation
Variant: Standard

1. e4 { [%eval 0.36] [%clk 1:30:30] } 1... c5 { [%eval 0.32] [%clk 1:30:24] } 2. Nf3 { [%eval 0.0] [%clk 1:30:31] } 2... d6 { [%eval 0.0] [%clk 1:30:50] } 3. d4 { [%eval 0.25] [%clk 1:30:44] } 3... cxd4 { [%eval 0.13] [%clk 1:31:15] } 4. Nxd4 { [%eval 0.27] [%clk 1:30:56] } 4... Nf6 { [%eval 0.31] [%clk 1:31:41] } 5. Nc3 { [%eval 0.18] [%clk 1:30:58] } 5... a6 { [%eval 0.39] [%clk 1:32:03] } 6. Be2 { [%eval 0.07] [%clk 1:31:16] } 6... e5 { [%eval 0.13] [%clk 1:32:25] } 7. Nb3 { [%eval 0.0] [%clk 1:31:36] } 7... Be6 { [%eval 0.24] [%clk 1:32:29] } 8. Be3 { [%eval 0.28] [%clk 1:31:46] } 8... Nbd7 { [%eval 0.36] [%clk 1:32:48] } 9. Qd3 { [%eval 0.34] [%clk 1:27:13] } 9... Rc8 { [%eval 0.27] [%clk 1:30:02] } 10. Nd5?! { [%eval -0.33] } { Inaccuracy. O-O was best. } { [%clk 1:26:47] } 10... Bxd5 { [%eval 0.0] [%clk 1:28:25] } 11. exd5 { [%eval 0.03] [%clk 1:26:51] } 11... Nb6 { [%eval 0.09] [%clk 1:28:37] } 12. Bxb6 { [%eval -0.41] [%clk 1:24:42] } 12... Qxb6 { [%eval -0.44] [%clk 1:26:40] } 13. c4 { [%eval -0.88] [%clk 1:25:11] } 13... g6 { [%eval -0.8] [%clk 1:25:45] } 14. O-O { [%eval -0.66] [%clk 1:21:53] } 14... Bg7 { [%eval -0.74] [%clk 1:26:05] } 15. Nd2 { [%eval -0.85] [%clk 1:17:21] } 15... O-O { [%eval -0.84] [%clk 1:26:14] } 16. Rab1 { [%eval -0.62] [%clk 1:15:59] } 16... Rfe8 { [%eval -0.5] [%clk 1:24:26] } 17. b4 { [%eval -0.93] [%clk 1:05:43] } 17... e4 { [%eval -0.96] [%clk 1:23:24] } 18. Qe3 { [%eval -0.97] [%clk 1:04:53] } 18... Qxe3?! { [%eval -0.37] } { Inaccuracy. Qc7 was best. } { [%clk 1:23:41] } 19. fxe3 { [%eval -0.39] [%clk 1:05:17] } 19... Nd7 { [%eval -0.35] [%clk 1:23:47] } 20. Nb3?! { [%eval -1.26] } { Inaccuracy. c5 was best. } { [%clk 1:02:31] } 20... Nb6 { [%eval -0.73] [%clk 1:17:45] } 21. Na5 { [%eval -0.97] [%clk 1:01:07] } 21... Rc7 { [%eval -0.91] [%clk 1:17:17] } 22. Rb3 { [%eval -0.74] [%clk 0:58:30] } 22... h5 { [%eval -0.25] [%clk 1:15:58] } 23. Rd1?! { [%eval -0.88] } { Inaccuracy. c5 was best. } { [%clk 0:50:58] } 23... Na4 { [%eval -0.99] [%clk 1:09:49] } 24. Rc1 { [%eval -1.23] [%clk 0:47:40] } 24... Be5 { [%eval -0.8] [%clk 1:06:17] } 25. Rc2?! { [%eval -1.47] } { Inaccuracy. c5 was best. } { [%clk 0:44:53] } 25... Rec8 { [%eval -0.92] [%clk 1:05:43] } 26. Ra3 { [%eval -1.3] [%clk 0:42:31] } 26... Nb6 { [%eval -1.44] [%clk 1:06:06] } 27. Rd2 { [%eval -1.5] [%clk 0:42:49] } 27... h4 { [%eval -1.52] [%clk 1:04:18] } 28. Rb3 { [%eval -1.49] [%clk 0:40:31] } 28... Na4?! { [%eval -0.81] } { Inaccuracy. Kg7 was best. } { [%clk 1:03:10] } 29. Bf1 { [%eval -1.31] [%clk 0:34:37] } 29... Kg7?! { [%eval -0.5] } { Inaccuracy. Rd8 was best. } { [%clk 0:57:21] } 30. Ra3?! { [%eval -1.46] } { Inaccuracy. c5 was best. } { [%clk 0:34:01] } 30... Nb6 { [%eval -1.51] [%clk 0:56:53] } 31. Rb3 { [%eval -1.55] [%clk 0:31:08] } 31... Rd7 { [%eval -1.48] [%clk 0:55:21] } 32. b5?! { [%eval -2.26] } { Inaccuracy. g4 was best. } { [%clk 0:27:47] } 32... Na4? { [%eval -1.01] } { Mistake. axb5 was best. } { [%clk 0:54:21] } 33. bxa6 { [%eval -1.1] [%clk 0:27:51] } 33... bxa6 { [%eval -1.21] [%clk 0:54:46] } 34. Nc6 { [%eval -1.19] [%clk 0:27:49] } 34... Nc5 { [%eval -1.37] [%clk 0:53:47] } 35. Rb6 { [%eval -1.25] [%clk 0:27:08] } 35... Bf6 { [%eval -1.32] [%clk 0:53:48] } 36. Nd4 { [%eval -1.35] [%clk 0:19:44] } 36... Bd8 { [%eval -1.31] [%clk 0:52:28] } 37. Rb1 { [%eval -1.36] [%clk 0:13:34] } 37... Rb7 { [%eval -1.07] [%clk 0:52:57] } 38. Rxb7 { [%eval -1.15] [%clk 0:10:42] } 38... Nxb7 { [%eval -1.09] [%clk 0:53:27] } 39. Nc6 { [%eval -1.11] [%clk 0:09:56] } 39... Nc5 { [%eval -1.06] [%clk 0:49:35] } 40. Rb2 { [%eval -1.1] [%clk 0:07:04] } 40... f5 { [%eval -1.16] [%clk 0:49:45] } 41. Kf2 { [%eval -1.09] [%clk 0:05:52] } 41... Bg5 { [%eval -1.18] [%clk 0:49:08] } 42. Nd4 { [%eval -1.13] [%clk 0:02:39] } 42... f4?! { [%eval -0.57] } { Inaccuracy. Bd8 was best. } { [%clk 0:49:07] } 43. exf4 { [%eval -0.48] [%clk 0:02:47] } 43... Bxf4 { [%eval -0.54] [%clk 0:49:08] } 44. g3 { [%eval -0.48] [%clk 0:03:07] } 44... hxg3+ { [%eval -0.35] [%clk 0:49:20] } 45. hxg3 { [%eval -0.23] [%clk 0:03:29] } 45... Be5 { [%eval -0.3] [%clk 0:49:20] } 46. Ke3 { [%eval -0.22] [%clk 0:03:43] } 46... Re8 { [%eval -0.23] [%clk 0:18:20] } 47. Bh3 { [%eval -0.21] [%clk 0:00:36] } 47... Bf6 { [%eval -0.12] [%clk 0:13:58] } 48. Rf2?! { [%eval -1.16] } { Inaccuracy. Bg4 was best. } { [%clk 0:02:14] } 48... Bxd4+?! { [%eval -0.55] } { Inaccuracy. Rf8 was best. } { [%clk 0:13:34] } 49. Kxd4 { [%eval -0.57] [%clk 0:02:12] } 49... Rb8 { [%eval -0.49] [%clk 0:13:49] } 50. Bg2 { [%eval -0.73] [%clk 0:00:50] } 50... Rb1 { [%eval -1.07] [%clk 0:14:08] } 51. Re2 { [%eval -1.43] [%clk 0:01:13] } 51... Rd1+ { [%eval -1.46] [%clk 0:14:29] } 52. Ke3 { [%eval -1.3] [%clk 0:01:39] } 52... Rd3+ { [%eval -1.3] [%clk 0:14:40] } 53. Kf2?? { [%eval -3.38] } { Blunder. Kf4 was best. } { [%clk 0:01:47] } 53... Rd4 { [%eval -3.49] [%clk 0:14:52] } 54. Rc2 { [%eval -3.56] [%clk 0:02:11] } 54... Kf6 { [%eval -3.65] [%clk 0:15:11] } 55. Bf1 { [%eval -3.93] [%clk 0:02:18] } 55... Rd1 { [%eval -3.97] [%clk 0:15:40] } 56. Be2 { [%eval -3.88] [%clk 0:02:47] } 56... Rb1 { [%eval -4.16] [%clk 0:15:36] } 57. Ke3 { [%eval -4.03] [%clk 0:02:44] } 57... Ke5 { [%eval -4.41] [%clk 0:16:05] } 58. Rd2 { [%eval -4.43] [%clk 0:02:32] } 58... Rc1 { [%eval -4.46] [%clk 0:15:23] } 59. Rb2 { [%eval -4.62] [%clk 0:02:50] } 59... Rc3+ { [%eval -4.09] [%clk 0:15:48] } 60. Kf2 { [%eval -4.85] [%clk 0:03:09] } 60... a5 { [%eval -4.73] [%clk 0:15:24] } 61. Rb8 { [%eval -4.99] [%clk 0:03:25] } 61... a4 { [%eval -4.6] [%clk 0:08:54] } 62. Re8+ { [%eval -4.32] [%clk 0:01:41] } 62... Kd4 { [%eval -4.54] [%clk 0:09:20] } 63. Rd8 { [%eval -5.51] [%clk 0:01:59] } 63... a3?! { [%eval -3.83] } { Inaccuracy. Nd3+ was best. } { [%clk 0:07:38] } 64. Rxd6 { [%eval -4.55] [%clk 0:01:54] } 64... Rc2 { [%eval -4.2] [%clk 0:08:04] } 65. Rxg6 { [%eval -4.24] [%clk 0:02:11] } 65... Rxa2 { [%eval -4.32] [%clk 0:08:28] } 66. d6 { [%eval -4.22] [%clk 0:02:27] } 66... Rd2 { [%eval -4.47] [%clk 0:08:30] } 67. Rg8 { [%eval -4.91] [%clk 0:02:05] } 67... Kc3 { [%eval -4.21] [%clk 0:07:19] } 68. g4 { [%eval -5.05] [%clk 0:02:20] } 68... Rxd6 { [%eval -5.31] [%clk 0:07:17] } 69. g5?! { [%eval -8.04] } { Inaccuracy. Rh8 was best. } { [%clk 0:02:45] } 69... a2 { [%eval -7.69] [%clk 0:07:39] } 0-1