Event: 2023 U.S. Senior Chess Championship
Site: Saint Louis, United States
Date: 2023-07-22
White: Shabalov, Alexander
WhiteElo: 2453
Black: Benjamin, Joel
BlackElo: 2500
Result: 1-0
ECO: E20
Opening: Nimzo-Indian Defense: Kmoch Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:29:40] } 1... Nf6 { [%eval 0.28] [%clk 1:30:53] } 2. c4 { [%eval 0.16] [%clk 1:29:24] } 2... e6 { [%eval 0.23] [%clk 1:31:18] } 3. Nc3 { [%eval 0.05] [%clk 1:29:27] } 3... Bb4 { [%eval 0.25] [%clk 1:31:42] } 4. f3 { [%eval 0.0] [%clk 1:29:51] } 4... O-O { [%eval 0.15] [%clk 1:29:16] } 5. a3 { [%eval 0.21] [%clk 1:29:46] } 5... Bxc3+ { [%eval 0.15] [%clk 1:29:21] } 6. bxc3 { [%eval 0.0] [%clk 1:30:10] } 6... Nc6 { [%eval 0.04] [%clk 1:28:40] } 7. e4 { [%eval 0.23] [%clk 1:28:29] } 7... e5 { [%eval 0.46] [%clk 1:28:42] } 8. Nh3?! { [%eval -0.18] } { Inaccuracy. Ne2 was best. } { [%clk 1:19:47] } 8... d6 { [%eval -0.22] [%clk 1:25:22] } 9. Nf2 { [%eval -0.19] [%clk 1:20:12] } 9... Nd7 { [%eval 0.35] [%clk 1:20:34] } 10. h4 { [%eval -0.03] [%clk 1:14:25] } 10... b6 { [%eval 0.49] [%clk 1:18:20] } 11. h5 { [%eval 0.1] [%clk 1:14:41] } 11... Ba6 { [%eval 0.29] [%clk 1:13:53] } 12. Ng4 { [%eval 0.33] [%clk 1:10:02] } 12... Na5 { [%eval 0.46] [%clk 1:09:16] } 13. Ne3 { [%eval 0.31] [%clk 0:59:08] } 13... Re8?! { [%eval 1.01] } { Inaccuracy. h6 was best. } { [%clk 1:05:54] } 14. Be2?! { [%eval 0.11] } { Inaccuracy. h6 was best. } { [%clk 0:55:46] } 14... Nf8?! { [%eval 0.94] } { Inaccuracy. h6 was best. } { [%clk 1:01:28] } 15. Kf2?! { [%eval 0.0] } { Inaccuracy. h6 was best. } { [%clk 0:53:16] } 15... Ne6 { [%eval 0.4] [%clk 1:00:49] } 16. Ra2 { [%eval -0.01] [%clk 0:52:27] } 16... f6 { [%eval 0.5] [%clk 0:44:56] } 17. Rd2 { [%eval 0.03] [%clk 0:45:00] } 17... Qe7 { [%eval 0.49] [%clk 0:42:17] } 18. g3 { [%eval 0.09] [%clk 0:42:17] } 18... Qf7 { [%eval 0.13] [%clk 0:40:44] } 19. Bb2 { [%eval -0.05] [%clk 0:40:02] } 19... Rad8 { [%eval 0.07] [%clk 0:38:52] } 20. Kg2 { [%eval -0.16] [%clk 0:40:03] } 20... Ng5 { [%eval -0.02] [%clk 0:35:22] } 21. Qf1 { [%eval -0.04] [%clk 0:39:30] } 21... f5 { [%eval -0.42] [%clk 0:20:21] } 22. Nxf5 { [%eval 0.0] [%clk 0:38:01] } 22... Nxc4 { [%eval 0.08] [%clk 0:19:06] } 23. Rc2 { [%eval 0.11] [%clk 0:36:05] } 23... exd4? { [%eval 1.28] } { Mistake. d5 was best. } { [%clk 0:14:34] } 24. cxd4 { [%eval 1.44] [%clk 0:33:02] } 24... d5 { [%eval 1.1] [%clk 0:15:01] } 25. Bc1 { [%eval 1.23] [%clk 0:22:05] } 25... h6?! { [%eval 1.98] } { Inaccuracy. Ne6 was best. } { [%clk 0:15:07] } 26. g4 { [%eval 1.43] [%clk 0:21:14] } 26... dxe4? { [%eval 3.26] } { Mistake. b5 was best. } { [%clk 0:10:05] } 27. f4 { [%eval 3.31] [%clk 0:18:18] } 27... Nf3 { [%eval 3.66] [%clk 0:04:43] } 28. Bxc4 { [%eval 3.78] [%clk 0:17:33] } 28... Ne1+ { [%eval 3.62] [%clk 0:03:58] } 29. Qxe1 { [%eval 3.44] [%clk 0:08:01] } 29... Bxc4 { [%eval 3.77] [%clk 0:04:26] } 30. Qc3?! { [%eval 2.81] } { Inaccuracy. Ne3 was best. } { [%clk 0:08:17] } 30... Bd3 { [%eval 3.28] [%clk 0:04:35] } 31. Rb2 { [%eval 3.28] [%clk 0:07:48] } 31... Rd5 { [%eval 3.61] [%clk 0:04:09] } 32. Be3?! { [%eval 2.66] } { Inaccuracy. Ne3 was best. } { [%clk 0:07:33] } 32... Qd7 { [%eval 3.34] [%clk 0:02:38] } 33. Kg3 { [%eval 3.65] [%clk 0:05:34] } 33... Re6 { [%eval 3.98] [%clk 0:02:20] } 34. Rc1 { [%eval 3.74] [%clk 0:04:58] } 34... c6 { [%eval 3.66] [%clk 0:02:43] } 35. Nh4 { [%eval 3.76] [%clk 0:05:01] } 35... Red6 { [%eval 4.24] [%clk 0:02:53] } 36. f5 { [%eval 3.68] [%clk 0:04:03] } 36... Bb5 { [%eval 4.24] [%clk 0:01:57] } 37. Ng2 { [%eval 4.12] [%clk 0:03:18] } 37... Rxd4 { [%eval 4.32] [%clk 0:02:12] } 38. Bxd4 { [%eval 3.55] [%clk 0:01:54] } 38... Rxd4 { [%eval 3.85] [%clk 0:02:36] } 39. Kh2 { [%eval 3.82] [%clk 0:01:31] } 39... Qd6+ { [%eval 4.29] [%clk 0:02:43] } 40. Kg1 { [%eval 3.67] [%clk 0:01:30] } 40... Rd3 { [%eval 3.58] [%clk 0:02:36] } 41. Qb4 { [%eval 3.58] [%clk 0:00:54] } 41... Qe5 { [%eval 3.77] [%clk 0:01:46] } 42. Rf2 { [%eval 3.69] [%clk 0:27:25] } 42... Rg3 { [%eval 3.87] [%clk 0:22:59] } 43. Qb2 { [%eval 4.06] [%clk 0:22:26] } 43... Qd6 { [%eval 4.12] [%clk 0:21:06] } 44. Qa2+ { [%eval 4.44] [%clk 0:20:06] } 44... Kh7 { [%eval 4.99] [%clk 0:17:47] } 45. Qe6 { [%eval 5.32] [%clk 0:20:13] } 45... Qxa3 { [%eval 6.04] [%clk 0:13:12] } 46. Qg6+ { [%eval 5.48] [%clk 0:20:12] } 46... Kh8 { [%eval 6.23] [%clk 0:12:22] } 47. Rd1 { [%eval 5.98] [%clk 0:19:59] } 1-0