Event: Round 5: David Arenas - Kevin Sun
Date: 2023-12-29
White: David Arenas
WhiteTitle: GM
Black: Kevin Sun
Result: 1-0
ECO: B92
Opening: Sicilian Defense: Najdorf Variation, Opocensky Variation
Variant: Standard

1. e4 { [%eval 0.2] [%clk 1:24:14] } 1... c5 { [%eval 0.33] [%clk 1:30:48] } 2. Nf3 { [%eval 0.17] [%clk 1:24:34] } 2... d6 { [%eval 0.0] [%clk 1:31:12] } 3. d4 { [%eval 0.25] [%clk 1:24:46] } 3... cxd4 { [%eval 0.13] [%clk 1:31:34] } 4. Nxd4 { [%eval 0.27] [%clk 1:25:06] } 4... Nf6 { [%eval 0.3] [%clk 1:31:58] } 5. Nc3 { [%eval 0.21] [%clk 1:25:33] } 5... a6 { [%eval 0.39] [%clk 1:32:21] } 6. Be2 { [%eval 0.07] [%clk 1:24:54] } 6... e5 { [%eval 0.13] [%clk 1:32:40] } 7. Nb3 { [%eval 0.0] [%clk 1:25:13] } 7... Be7 { [%eval 0.22] [%clk 1:33:03] } 8. Bg5 { [%eval 0.11] [%clk 1:24:50] } 8... Be6 { [%eval 0.16] [%clk 1:31:30] } 9. Bxf6 { [%eval -0.04] [%clk 1:25:14] } 9... Bxf6 { [%eval 0.02] [%clk 1:31:51] } 10. Qd3 { [%eval -0.06] [%clk 1:25:14] } 10... Be7 { [%eval 0.07] [%clk 1:30:44] } 11. Nd5 { [%eval 0.09] [%clk 1:25:15] } 11... O-O { [%eval 0.12] [%clk 1:29:26] } 12. O-O-O { [%eval 0.08] [%clk 1:25:15] } 12... Bxd5 { [%eval 0.02] [%clk 1:27:13] } 13. Qxd5 { [%eval 0.12] [%clk 1:25:27] } 13... Qc7 { [%eval 0.12] [%clk 1:27:09] } 14. Qc4 { [%eval -0.32] [%clk 1:25:47] } 14... Rc8?! { [%eval 0.32] } { Inaccuracy. Nc6 was best. } { [%clk 1:23:11] } 15. Qxc7 { [%eval 0.49] [%clk 1:24:59] } 15... Rxc7 { [%eval 0.5] [%clk 1:23:22] } 16. Kb1 { [%eval 0.54] [%clk 1:24:44] } 16... Nd7 { [%eval 0.61] [%clk 1:21:51] } 17. Nd2 { [%eval 0.44] [%clk 1:22:49] } 17... Rac8 { [%eval 0.44] [%clk 1:21:16] } 18. Bg4 { [%eval 0.15] [%clk 1:22:00] } 18... h5 { [%eval 0.09] [%clk 1:18:53] } 19. Bh3 { [%eval 0.18] [%clk 1:16:52] } 19... Rd8 { [%eval 0.1] [%clk 1:14:47] } 20. Bxd7 { [%eval 0.0] [%clk 1:04:59] } 20... Rdxd7 { [%eval -0.04] [%clk 1:13:54] } 21. Nf1 { [%eval 0.0] [%clk 1:03:29] } 21... Bg5 { [%eval 0.0] [%clk 1:14:09] } 22. Ng3 { [%eval -0.06] [%clk 1:03:40] } 22... g6 { [%eval 0.35] [%clk 1:14:24] } 23. Ne2 { [%eval 0.18] [%clk 1:03:40] } 23... b5 { [%eval 0.38] [%clk 1:01:36] } 24. Nc3 { [%eval 0.41] [%clk 1:03:38] } 24... Rc4 { [%eval 0.42] [%clk 1:00:18] } 25. Rhe1 { [%eval 0.28] [%clk 1:03:44] } 25... Rd8 { [%eval 0.51] [%clk 0:59:27] } 26. Nd5 { [%eval 0.5] [%clk 1:02:27] } 26... Kf8 { [%eval 0.61] [%clk 0:54:57] } 27. b3 { [%eval 0.64] [%clk 1:00:55] } 27... Rc6 { [%eval 0.71] [%clk 0:54:30] } 28. Rd3 { [%eval 0.52] [%clk 0:58:38] } 28... a5 { [%eval 0.46] [%clk 0:51:08] } 29. Red1 { [%eval 0.49] [%clk 0:56:04] } 29... b4 { [%eval 0.46] [%clk 0:49:34] } 30. c3 { [%eval 0.11] [%clk 0:55:02] } 30... Rb8?! { [%eval 0.76] } { Inaccuracy. bxc3 was best. } { [%clk 0:46:45] } 31. Kb2 { [%eval 0.82] [%clk 0:54:59] } 31... h4 { [%eval 0.75] [%clk 0:38:43] } 32. a3 { [%eval 1.0] [%clk 0:47:23] } 32... bxc3+ { [%eval 1.0] [%clk 0:38:36] } 33. Rxc3 { [%eval 0.99] [%clk 0:47:34] } 33... Rxc3 { [%eval 1.13] [%clk 0:38:18] } 34. Nxc3 { [%eval 0.61] [%clk 0:47:58] } 34... Ke7 { [%eval 0.33] [%clk 0:38:20] } 35. Rd5 { [%eval 0.19] [%clk 0:47:33] } 35... Ra8 { [%eval 0.27] [%clk 0:37:25] } 36. h3 { [%eval 0.17] [%clk 0:47:16] } 36... f5 { [%eval 0.07] [%clk 0:36:15] } 37. Rb5 { [%eval 0.03] [%clk 0:45:38] } 37... Ke6 { [%eval 0.07] [%clk 0:34:26] } 38. a4 { [%eval 0.0] [%clk 0:45:14] } 38... Bd2 { [%eval 0.0] [%clk 0:32:19] } 39. Nd5 { [%eval 0.0] [%clk 0:45:43] } 39... Ra7? { [%eval 1.27] } { Mistake. Rf8 was best. } { [%clk 0:32:05] } 40. Kc2 { [%eval 1.4] [%clk 0:45:06] } 40... Be1 { [%eval 1.41] [%clk 0:31:13] } 41. f3 { [%eval 1.48] [%clk 0:45:35] } 41... fxe4 { [%eval 1.41] [%clk 0:29:06] } 42. fxe4 { [%eval 1.53] [%clk 0:46:04] } 42... g5 { [%eval 2.06] [%clk 0:24:18] } 43. Kd1?! { [%eval 1.26] } { Inaccuracy. Kd3 was best. } { [%clk 0:46:01] } 43... Bf2?! { [%eval 2.19] } { Inaccuracy. Bg3 was best. } { [%clk 0:24:28] } 44. Ke2 { [%eval 2.1] [%clk 0:46:15] } 44... Bc5 { [%eval 2.32] [%clk 0:24:21] } 45. Kf3 { [%eval 2.56] [%clk 0:46:09] } 45... Kf7 { [%eval 2.84] [%clk 0:23:44] } 46. Kg4 { [%eval 3.31] [%clk 0:45:52] } 46... Kg6 { [%eval 3.09] [%clk 0:24:06] } 47. Rb8 { [%eval 3.42] [%clk 0:46:19] } 47... Rg7 { [%eval 3.19] [%clk 0:20:30] } 48. Rf8 { [%eval 3.08] [%clk 0:42:38] } 48... Rb7 { [%eval 2.54] [%clk 0:18:48] } 49. Rf6+ { [%eval 2.93] [%clk 0:42:27] } 49... Kg7 { [%eval 3.02] [%clk 0:18:46] } 50. Kxg5 { [%eval 2.64] [%clk 0:42:27] } 50... Rxb3 { [%eval 2.93] [%clk 0:19:08] } 51. Kxh4 { [%eval 2.86] [%clk 0:42:53] } 51... Ra3 { [%eval 3.07] [%clk 0:18:55] } 52. g4 { [%eval 2.67] [%clk 0:42:37] } 52... Rxa4 { [%eval 3.25] [%clk 0:18:25] } 53. g5 { [%eval 2.78] [%clk 0:43:06] } 53... Rxe4+ { [%eval 2.97] [%clk 0:15:38] } 54. Kh5 { [%eval 2.91] [%clk 0:43:34] } 54... a4?? { [%eval 6.52] } { Blunder. Re2 was best. } { [%clk 0:14:56] } 55. g6?! { [%eval 4.78] } { Inaccuracy. Nc7 was best. } { [%clk 0:43:48] } 55... Rf4 { [%eval 5.07] [%clk 0:13:33] } 56. Nxf4?? { [%eval 0.24] } { Blunder. Re6 was best. } { [%clk 0:41:38] } 56... Kxf6 { [%eval 0.78] [%clk 0:13:01] } 57. Kh6 { [%eval 0.18] [%clk 0:42:07] } 57... exf4 { [%eval 0.16] [%clk 0:11:57] } 58. g7 { [%eval 0.0] [%clk 0:42:32] } 58... f3 { [%eval 0.2] [%clk 0:11:43] } 59. g8=Q { [%eval 0.26] [%clk 0:42:57] } 59... f2 { [%eval 0.0] [%clk 0:12:04] } 60. Qf8+ { [%eval 0.53] [%clk 0:41:41] } 60... Ke5 { [%eval 0.54] [%clk 0:12:19] } 61. Kg5 { [%eval 0.44] [%clk 0:42:05] } 61... Ke4 { [%eval 0.44] [%clk 0:12:19] } 62. Kg4 { [%eval 0.47] [%clk 0:42:14] } 62... a3?? { [%eval 6.25] } { Blunder. Kd3 was best. } { [%clk 0:12:08] } 63. Qf3+ { [%eval 6.29] [%clk 0:42:31] } 1-0