Event: Las Vegas National Open 2023
Date: 2023-06-17
White: Nico Chasin
WhiteTitle: IM
Black: Alexander Costello
BlackTitle: IM
Result: 1-0
ECO: E12
Opening: Queen's Indian Defense: Kasparov-Petrosian Variation, Main Line
Variant: Standard
TimeControl: G/90 +30 sec inc

1. Nf3 { [%eval 0.36] [%clk 1:08:06] } 1... Nf6 { [%eval 0.29] [%clk 1:30:03] } 2. c4 { [%eval 0.29] [%clk 1:07:51] } 2... b6 { [%eval 0.34] [%clk 1:30:18] } 3. Nc3 { [%eval 0.37] [%clk 1:06:47] } 3... Bb7 { [%eval 0.35] [%clk 1:30:44] } 4. d4 { [%eval 0.05] [%clk 1:07:11] } 4... e6 { [%eval 0.13] [%clk 1:24:30] } 5. a3 { [%eval 0.0] [%clk 1:07:24] } 5... d5 { [%eval 0.19] [%clk 1:23:55] } 6. Bg5 { [%eval 0.14] [%clk 1:06:17] } 6... Be7 { [%eval 0.25] [%clk 1:17:06] } 7. e3 { [%eval 0.15] [%clk 1:01:34] } 7... O-O { [%eval 0.21] [%clk 1:14:53] } 8. Bxf6 { [%eval 0.0] [%clk 1:00:27] } 8... Bxf6 { [%eval -0.06] [%clk 1:15:17] } 9. cxd5 { [%eval -0.03] [%clk 1:00:54] } 9... exd5 { [%eval 0.0] [%clk 1:15:29] } 10. Qb3 { [%eval -0.35] [%clk 1:01:23] } 10... c6 { [%eval -0.05] [%clk 0:59:49] } 11. Bd3 { [%eval -0.23] [%clk 1:01:39] } 11... Na6?! { [%eval 0.6] } { Inaccuracy. c5 was best. } { [%clk 1:00:18] } 12. O-O?! { [%eval -0.17] } { Inaccuracy. h4 was best. } { [%clk 1:01:31] } 12... Nc7 { [%eval 0.18] [%clk 0:59:39] } 13. a4 { [%eval -0.09] [%clk 0:55:18] } 13... Ne6 { [%eval -0.06] [%clk 0:44:36] } 14. a5 { [%eval 0.04] [%clk 0:55:09] } 14... Rb8 { [%eval 0.11] [%clk 0:45:05] } 15. a6 { [%eval -0.31] [%clk 0:53:54] } 15... Ba8 { [%eval -0.31] [%clk 0:38:46] } 16. Rfd1 { [%eval -0.7] [%clk 0:50:38] } 16... Qe7 { [%eval -0.41] [%clk 0:39:14] } 17. Qa4 { [%eval -0.38] [%clk 0:35:24] } 17... c5 { [%eval -0.39] [%clk 0:29:22] } 18. Bb5 { [%eval -0.74] [%clk 0:33:43] } 18... Rfc8 { [%eval -0.21] [%clk 0:29:40] } 19. Rac1 { [%eval -0.53] [%clk 0:31:22] } 19... Nc7 { [%eval -0.6] [%clk 0:26:35] } 20. b3 { [%eval -0.59] [%clk 0:27:18] } 20... Nxb5 { [%eval -0.6] [%clk 0:20:01] } 21. Qxb5 { [%eval -0.43] [%clk 0:27:39] } 21... Bc6 { [%eval -0.39] [%clk 0:20:30] } 22. Qe2 { [%eval -0.57] [%clk 0:26:21] } 22... Rd8 { [%eval -0.45] [%clk 0:20:59] } 23. Qa2 { [%eval -0.57] [%clk 0:25:15] } 23... Rbc8 { [%eval -0.59] [%clk 0:19:22] } 24. Ne2 { [%eval -0.7] [%clk 0:23:04] } 24... Bb5 { [%eval -0.57] [%clk 0:17:20] } 25. Nc3 { [%eval -0.71] [%clk 0:23:33] } 25... Bc6 { [%eval -0.78] [%clk 0:17:16] } 26. Ne2 { [%eval -1.09] [%clk 0:24:02] } 26... Bb5?! { [%eval -0.39] } { Inaccuracy. c4 was best. } { [%clk 0:17:39] } 27. Nf4 { [%eval -0.81] [%clk 0:24:26] } 27... c4 { [%eval -0.88] [%clk 0:17:38] } 28. Nd2 { [%eval -0.65] [%clk 0:18:06] } 28... c3?! { [%eval 0.3] } { Inaccuracy. Qd7 was best. } { [%clk 0:14:38] } 29. Nb1 { [%eval 0.09] [%clk 0:17:42] } 29... c2?! { [%eval 0.8] } { Inaccuracy. Qb4 was best. } { [%clk 0:14:57] } 30. Rxc2 { [%eval 0.81] [%clk 0:17:57] } 30... Rxc2 { [%eval 0.81] [%clk 0:15:24] } 31. Qxc2 { [%eval 0.75] [%clk 0:18:26] } 31... Bxa6 { [%eval 0.73] [%clk 0:15:53] } 32. Qa2 { [%eval 0.73] [%clk 0:16:50] } 32... Bb5 { [%eval 0.92] [%clk 0:15:18] } 33. Nc3 { [%eval 0.91] [%clk 0:16:45] } 33... Bc6 { [%eval 0.93] [%clk 0:15:47] } 34. b4 { [%eval 0.95] [%clk 0:17:14] } 34... Qd7 { [%eval 0.94] [%clk 0:12:01] } 35. Ra1 { [%eval 0.82] [%clk 0:16:07] } 35... Be7?! { [%eval 1.43] } { Inaccuracy. Ra8 was best. } { [%clk 0:08:02] } 36. b5 { [%eval 1.41] [%clk 0:15:53] } 36... Bxb5 { [%eval 1.56] [%clk 0:08:30] } 37. Nfxd5 { [%eval 1.54] [%clk 0:16:22] } 37... Bf8?! { [%eval 2.17] } { Inaccuracy. a6 was best. } { [%clk 0:08:41] } 38. Qxa7 { [%eval 2.13] [%clk 0:16:27] } 38... Qxa7 { [%eval 2.33] [%clk 0:04:59] } 39. Rxa7 { [%eval 2.05] [%clk 0:16:55] } 39... Rc8 { [%eval 2.3] [%clk 0:05:25] } 40. h4 { [%eval 2.33] [%clk 0:15:59] } 40... Bd6?! { [%eval 3.38] } { Inaccuracy. Be8 was best. } { [%clk 0:05:15] } 41. Rb7 { [%eval 3.53] [%clk 0:14:42] } 41... Ra8 { [%eval 3.52] [%clk 0:03:46] } 42. g3 { [%eval 3.27] [%clk 0:14:28] } 42... Bd3 { [%eval 3.32] [%clk 0:01:30] } 43. Rxb6 { [%eval 3.25] [%clk 0:14:40] } 43... Bf8 { [%eval 3.83] [%clk 0:01:58] } 44. Nf4 { [%eval 3.41] [%clk 0:14:41] } 44... Bf5 { [%eval 3.42] [%clk 0:01:54] } 45. e4 { [%eval 3.63] [%clk 0:13:36] } 45... Bg4 { [%eval 3.59] [%clk 0:02:13] } 46. Kg2 { [%eval 3.51] [%clk 0:14:05] } 46... Ra3 { [%eval 3.66] [%clk 0:02:07] } 47. Rc6 { [%eval 3.54] [%clk 0:14:08] } 47... Bb4 { [%eval 3.95] [%clk 0:01:59] } 48. Nfd5 { [%eval 4.07] [%clk 0:13:46] } 48... Ba5 { [%eval 3.82] [%clk 0:02:28] } 49. Ra6 { [%eval 3.8] [%clk 0:07:37] } 49... h6 { [%eval 4.19] [%clk 0:02:37] } 50. Ne3 { [%eval 4.44] [%clk 0:07:57] } 50... Bd7 { [%eval 4.34] [%clk 0:01:52] } 51. Ncd5 { [%eval 4.49] [%clk 0:07:27] } 51... Bb5 { [%eval 4.19] [%clk 0:01:56] } 52. Ra8+ { [%eval 4.28] [%clk 0:07:56] } 52... Kh7 { [%eval 4.51] [%clk 0:02:24] } 53. Ra7 { [%eval 4.25] [%clk 0:08:06] } 53... Bd3 { [%eval 4.7] [%clk 0:02:19] } 54. Kf3 { [%eval 5.0] [%clk 0:08:10] } 54... Ra2 { [%eval 4.98] [%clk 0:00:50] } 55. Nb4 { [%eval 4.4] [%clk 0:07:01] } 55... Be2+ { [%eval 4.45] [%clk 0:01:00] } 56. Kg2 { [%eval 3.89] [%clk 0:07:29] } 56... Rb2 { [%eval 4.04] [%clk 0:00:44] } 57. Rxa5 { [%eval 3.89] [%clk 0:07:33] } 57... Rxb4 { [%eval 3.59] [%clk 0:01:12] } 58. Rd5 { [%eval 3.85] [%clk 0:08:02] } 58... Bd3 { [%eval 4.33] [%clk 0:00:42] } 59. Kf3 { [%eval 4.61] [%clk 0:08:26] } 59... Rb3 { [%eval 4.67] [%clk 0:00:50] } 60. Rd6 { [%eval 4.45] [%clk 0:08:22] } 60... f5 { [%eval 5.52] [%clk 0:00:58] } 61. Nxf5 { [%eval 5.63] [%clk 0:08:29] } 61... Bc2+ { [%eval 5.87] [%clk 0:00:39] } 62. Ne3 { [%eval 5.48] [%clk 0:08:54] } 1-0