Event: Las Vegas National Open 2023
Date: 2023-06-17
White: Robert Shlyakhtenko
WhiteTitle: IM
Black: Aaron Jacobson
BlackTitle: FM
Result: 0-1
ECO: D43
Opening: Semi-Slav Defense
Variant: Standard
TimeControl: G/90 +30 sec inc

1. d4 { [%eval 0.0] [%clk 1:30:58] } 1... e6 { [%eval 0.2] [%clk 1:28:03] } 2. c4 { [%eval 0.23] [%clk 1:30:55] } 2... d5 { [%eval 0.3] [%clk 1:27:38] } 3. Nc3 { [%eval 0.39] [%clk 1:31:11] } 3... c6 { [%eval 0.27] [%clk 1:28:01] } 4. Nf3 { [%eval 0.24] [%clk 1:31:05] } 4... Nf6 { [%eval 0.2] [%clk 1:28:22] } 5. g3 { [%eval 0.0] [%clk 1:31:00] } 5... dxc4 { [%eval 0.0] [%clk 1:26:25] } 6. Bg2 { [%eval 0.0] [%clk 1:31:17] } 6... b5 { [%eval 0.12] [%clk 1:21:26] } 7. O-O { [%eval 0.0] [%clk 1:30:31] } 7... Bb7 { [%eval -0.36] [%clk 1:17:32] } 8. e4 { [%eval -0.44] [%clk 1:29:41] } 8... Be7 { [%eval -0.42] [%clk 1:13:00] } 9. h4 { [%eval -0.39] [%clk 1:20:05] } 9... h6 { [%eval 0.01] [%clk 1:09:12] } 10. Re1 { [%eval -0.43] [%clk 1:12:10] } 10... a6 { [%eval 0.0] [%clk 1:04:05] } 11. b3 { [%eval -0.29] [%clk 1:01:04] } 11... b4 { [%eval -0.53] [%clk 0:55:57] } 12. Na4 { [%eval -0.23] [%clk 0:56:33] } 12... c3 { [%eval -0.31] [%clk 0:55:38] } 13. Ne5 { [%eval -0.29] [%clk 0:56:40] } 13... c5 { [%eval -0.27] [%clk 0:42:02] } 14. Nxc5 { [%eval -0.27] [%clk 0:45:57] } 14... Bxc5 { [%eval -0.01] [%clk 0:41:19] } 15. dxc5 { [%eval -0.27] [%clk 0:46:22] } 15... Qxd1 { [%eval -0.45] [%clk 0:41:02] } 16. Rxd1 { [%eval -0.27] [%clk 0:46:45] } 16... Ke7?! { [%eval 0.55] } { Inaccuracy. O-O was best. } { [%clk 0:24:36] } 17. Rd4 { [%eval 0.13] [%clk 0:40:17] } 17... a5 { [%eval 0.35] [%clk 0:22:05] } 18. Bf4 { [%eval 0.21] [%clk 0:39:56] } 18... Nh5? { [%eval 1.89] } { Mistake. Rc8 was best. } { [%clk 0:16:01] } 19. Be3? { [%eval 0.4] } { Mistake. c6 was best. } { [%clk 0:35:24] } 19... Nf6 { [%eval 0.14] [%clk 0:15:42] } 20. a3 { [%eval 0.11] [%clk 0:31:25] } 20... Nc6 { [%eval 0.16] [%clk 0:13:41] } 21. Nxc6+ { [%eval 0.01] [%clk 0:29:45] } 21... Bxc6 { [%eval 0.12] [%clk 0:14:09] } 22. Bf4 { [%eval 0.08] [%clk 0:29:54] } 22... Rhd8 { [%eval 0.01] [%clk 0:05:33] } 23. Bd6+ { [%eval 0.0] [%clk 0:29:49] } 23... Ke8 { [%eval 0.19] [%clk 0:06:02] } 24. axb4 { [%eval 0.0] [%clk 0:22:32] } 24... axb4 { [%eval 0.15] [%clk 0:06:30] } 25. Rc1 { [%eval 0.13] [%clk 0:23:00] } 25... Rdb8 { [%eval 0.66] [%clk 0:05:40] } 26. Bc7?! { [%eval -0.37] } { Inaccuracy. Bxb8 was best. } { [%clk 0:15:22] } 26... Rb5 { [%eval -0.1] [%clk 0:01:19] } 27. Bb6 { [%eval -0.6] [%clk 0:14:32] } 27... Rb8?! { [%eval 0.0] } { Inaccuracy. Ke7 was best. } { [%clk 0:01:15] } 28. Rd6? { [%eval -1.6] } { Mistake. Bf1 was best. } { [%clk 0:12:20] } 28... Bxe4 { [%eval -1.91] [%clk 0:01:19] } 29. c6? { [%eval -3.44] } { Mistake. f3 was best. } { [%clk 0:06:49] } 29... Rc8 { [%eval -3.38] [%clk 0:00:35] } 30. c7 { [%eval -3.34] [%clk 0:05:39] } 30... Rxb6?? { [%eval -0.31] } { Blunder. Rd5 was best. } { [%clk 0:00:38] } 31. Rxb6 { [%eval -0.02] [%clk 0:06:02] } 31... Bxg2 { [%eval -0.08] [%clk 0:00:59] } 32. Kxg2 { [%eval -0.17] [%clk 0:03:20] } 32... Nd5 { [%eval -0.12] [%clk 0:01:25] } 33. Rb8 { [%eval -0.11] [%clk 0:03:33] } 33... Kd7 { [%eval -0.17] [%clk 0:01:53] } 34. Rxc8 { [%eval -0.27] [%clk 0:03:42] } 34... Kxc8 { [%eval -0.16] [%clk 0:02:22] } 35. Kf3 { [%eval -0.22] [%clk 0:04:10] } 35... Kxc7 { [%eval -0.25] [%clk 0:02:41] } 36. Ke4 { [%eval -0.19] [%clk 0:04:34] } 36... Kb6 { [%eval 0.0] [%clk 0:01:48] } 37. Kd4 { [%eval -0.01] [%clk 0:04:58] } 37... Kb5 { [%eval 0.0] [%clk 0:01:55] } 38. Ra1 { [%eval -0.29] [%clk 0:05:17] } 38... Ne7 { [%eval -0.28] [%clk 0:01:30] } 39. Kd3 { [%eval -0.33] [%clk 0:04:35] } 39... Nc6 { [%eval -0.37] [%clk 0:01:50] } 40. f4 { [%eval -0.34] [%clk 0:03:31] } 40... Na5 { [%eval -0.49] [%clk 0:01:47] } 41. Kc2 { [%eval -0.44] [%clk 0:03:47] } 41... Nc6 { [%eval -0.59] [%clk 0:02:15] } 42. Kd3 { [%eval -0.28] [%clk 0:01:04] } 42... Na5 { [%eval -0.36] [%clk 0:02:29] } 43. Kc2 { [%eval -0.16] [%clk 0:01:31] } 43... Nc6 { [%eval 0.0] [%clk 0:01:03] } 44. Rd1?? { [%eval -2.88] } { Blunder. Kd3 was best. } { [%clk 0:00:44] } 44... Kc5 { [%eval -2.94] [%clk 0:01:19] } 45. Rd7 { [%eval -2.63] [%clk 0:01:09] } 45... Nd4+ { [%eval -3.0] [%clk 0:01:39] } 46. Kd3 { [%eval -2.64] [%clk 0:01:38] } 46... Nxb3 { [%eval -3.08] [%clk 0:01:05] } 47. Rxf7 { [%eval -3.42] [%clk 0:02:06] } 47... Kd5?! { [%eval -2.41] } { Inaccuracy. Kd6 was best. } { [%clk 0:00:56] } 48. Rd7+ { [%eval -2.49] [%clk 0:01:25] } 48... Kc6 { [%eval -2.77] [%clk 0:01:25] } 49. Rd8? { [%eval -4.78] } { Mistake. Ra7 was best. } { [%clk 0:01:16] } 49... Nc5+ { [%eval -4.45] [%clk 0:01:32] } 50. Kc2 { [%eval -4.62] [%clk 0:01:45] } 50... Kb5 { [%eval -5.16] [%clk 0:01:07] } 51. Rd4 { [%eval -4.72] [%clk 0:02:10] } 51... h5 { [%eval -5.09] [%clk 0:00:46] } 52. Kd1 { [%eval -4.91] [%clk 0:01:21] } 52... b3 { [%eval -5.79] [%clk 0:00:46] } 53. Kc1 { [%eval -5.02] [%clk 0:01:42] } 53... b2+ { [%eval -5.03] [%clk 0:00:32] } 54. Kc2 { [%eval -5.72] [%clk 0:01:34] } 54... Nb3 { [%eval -5.02] [%clk 0:00:51] } 55. Rd7 { [%eval -5.06] [%clk 0:01:22] } 55... Nd2 { [%eval -5.42] [%clk 0:01:15] } 56. Kxc3 { [%eval -5.67] [%clk 0:01:44] } 56... b1=Q { [%eval -5.62] [%clk 0:01:37] } 57. Rb7+ { [%eval -6.37] [%clk 0:02:11] } 57... Kc5 { [%eval -6.17] [%clk 0:02:02] } 58. Rxb1?? { [%eval #-1] } { Checkmate is now unavoidable. Rxb1 was best. } { [%clk 0:02:40] } 58... Nxb1+?? { [%eval 0.33] } { Lost forced checkmate sequence. Ne4# was best. } { [%clk 0:02:02] } 59. Kb2 { [%eval 0.31] } 59... Nd2?? { [%eval 8.21] } { Blunder. Ne4+ was best. } { [%clk 0:02:02] } 60. Kc3 Nb1+ { [%clk 0:02:28] } 61. Kd3 { [%clk 0:02:59] } 61... Kd5 { [%clk 0:02:53] } 62. Ke3 { [%clk 0:03:21] } 62... g6 { [%clk 0:02:12] } 63. Kf3 { [%clk 0:03:43] } 63... Nd2+ { [%clk 0:02:35] } 64. Ke3 { [%clk 0:04:09] } 64... Ne4 { [%clk 0:03:01] } 65. Kf3 { [%clk 0:04:36] } 65... Nf6 { [%clk 0:03:28] } 0-1