Event: U.S. Senior Championship
Site: Saint Louis, United States
Date: 2021-07-25
White: Benjamin, Joel
WhiteElo: 2506
Black: Shabalov, Alexander
BlackElo: 2521
Result: 1/2-1/2
ECO: A50
Opening: Queen's Indian Accelerated
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:57] } 1... Nf6 { [%eval 0.19] [%clk 1:24:41] } 2. c4 { [%eval 0.11] [%clk 1:31:14] } 2... b6 { [%eval 0.44] [%clk 1:20:56] } 3. Nc3 { [%eval 0.48] [%clk 1:28:05] } 3... Bb7 { [%eval 0.33] [%clk 1:21:19] } 4. d5 { [%eval 0.14] [%clk 1:25:31] } 4... e6 { [%eval 0.24] [%clk 1:21:14] } 5. a3 { [%eval 0.2] [%clk 1:23:18] } 5... exd5 { [%eval 0.45] [%clk 1:15:51] } 6. cxd5 { [%eval 0.4] [%clk 1:22:31] } 6... b5 { [%eval 0.82] [%clk 1:14:15] } 7. Nxb5 { [%eval 0.57] [%clk 1:00:50] } 7... Nxd5 { [%eval 0.72] [%clk 1:07:24] } 8. e4 { [%eval 0.7] [%clk 1:00:49] } 8... Nf6 { [%eval 0.46] [%clk 0:49:04] } 9. Bf4 { [%eval 0.36] [%clk 0:53:58] } 9... Na6 { [%eval 0.59] [%clk 0:48:14] } 10. e5 { [%eval 0.42] [%clk 0:42:36] } 10... Ne4 { [%eval 0.82] [%clk 0:39:27] } 11. Nf3?! { [%eval 0.3] } { Inaccuracy. Nh3 was best. } { [%clk 0:39:23] } 11... c6 { [%eval 0.77] [%clk 0:28:39] } 12. Nd6+ { [%eval 0.84] [%clk 0:32:18] } 12... Bxd6 { [%eval 0.48] [%clk 0:27:25] } 13. exd6 { [%eval 0.5] [%clk 0:32:23] } 13... O-O { [%eval 0.39] [%clk 0:21:44] } 14. Bc4 { [%eval 0.59] [%clk 0:25:57] } 14... Qa5+ { [%eval 0.62] [%clk 0:19:09] } 15. b4 { [%eval 0.39] [%clk 0:24:09] } 15... Qf5? { [%eval 1.89] } { Mistake. Nxb4 was best. } { [%clk 0:19:33] } 16. Be3 { [%eval 1.77] [%clk 0:21:30] } 16... Qf6 { [%eval 1.58] [%clk 0:16:16] } 17. O-O { [%eval 1.66] [%clk 0:20:41] } 17... Qxd6 { [%eval 2.03] [%clk 0:15:10] } 18. Bd3 { [%eval 2.34] [%clk 0:14:26] } 18... c5?? { [%eval 6.23] } { Blunder. Qg6 was best. } { [%clk 0:09:01] } 19. Bxe4?? { [%eval 1.03] } { Blunder. Ng5 was best. } { [%clk 0:04:51] } 19... Qxd1 { [%eval 1.03] [%clk 0:09:22] } 20. Rfxd1 { [%eval 1.16] [%clk 0:05:04] } 20... Bxe4 { [%eval 1.04] [%clk 0:09:47] } 21. bxc5?! { [%eval 0.34] } { Inaccuracy. Rd6 was best. } { [%clk 0:05:15] } 21... Rfc8 { [%eval 0.39] [%clk 0:05:24] } 22. Rac1 { [%eval 0.36] [%clk 0:05:16] } 22... Rc7 { [%eval 0.7] [%clk 0:04:07] } 23. Rd6 { [%eval 0.81] [%clk 0:04:16] } 23... Nb8 { [%eval 0.67] [%clk 0:03:21] } 24. Ne5 { [%eval 0.46] [%clk 0:04:08] } 24... f6 { [%eval 0.22] [%clk 0:03:10] } 25. Nc4 { [%eval 0.14] [%clk 0:04:06] } 25... Bf5 { [%eval 0.11] [%clk 0:03:08] } 26. Rd2 { [%eval 0.25] [%clk 0:03:44] } 26... Be6 { [%eval 0.23] [%clk 0:02:58] } 27. Nd6 { [%eval 0.33] [%clk 0:03:36] } 27... Na6?! { [%eval 1.17] } { Inaccuracy. Nc6 was best. } { [%clk 0:02:50] } 28. f4 { [%eval 1.38] [%clk 0:03:13] } 28... g6 { [%eval 1.06] [%clk 0:03:07] } 29. Rb2 { [%eval 1.44] [%clk 0:02:35] } 29... Bd5 { [%eval 1.83] [%clk 0:02:08] } 30. h3 { [%eval 1.43] [%clk 0:01:59] } 30... Rb8? { [%eval 3.13] } { Mistake. f5 was best. } { [%clk 0:01:50] } 31. Rxb8+ { [%eval 2.89] [%clk 0:01:37] } 31... Nxb8 { [%eval 2.96] [%clk 0:02:18] } 32. Ne8 { [%eval 2.7] [%clk 0:01:05] } 32... Rc6 { [%eval 2.15] [%clk 0:02:41] } 33. Rb1? { [%eval 0.66] } { Mistake. Bd4 was best. } { [%clk 0:01:29] } 33... Na6 { [%eval 0.75] [%clk 0:02:58] } 34. Bd4 { [%eval 0.66] [%clk 0:01:32] } 34... Kf7 { [%eval 0.54] [%clk 0:02:28] } 35. Nd6+ { [%eval 0.55] [%clk 0:01:58] } 35... Ke7 { [%eval 0.54] [%clk 0:02:33] } 36. Re1+ { [%eval 0.24] [%clk 0:02:08] } 36... Be6 { [%eval 0.17] [%clk 0:02:54] } 37. Rc1 { [%eval 0.12] [%clk 0:01:51] } 37... f5 { [%eval 0.48] [%clk 0:02:16] } 38. Kf2 { [%eval 0.4] [%clk 0:01:40] } 38... Nc7 { [%eval 0.22] [%clk 0:02:03] } 39. Nc8+ { [%eval 0.0] [%clk 0:01:37] } 39... Ke8?! { [%eval 0.51] } { Inaccuracy. Kd8 was best. } { [%clk 0:01:36] } 40. Nxa7 { [%eval 0.02] [%clk 0:31:15] } 40... Ra6 { [%eval 0.0] [%clk 0:31:48] } 41. c6 { [%eval 0.0] [%clk 0:30:43] } 41... Bd5 { [%eval 0.0] [%clk 0:29:02] } 42. cxd7+ { [%eval 0.0] [%clk 0:26:07] } 42... Kxd7 { [%eval 0.0] [%clk 0:29:26] } 43. Be3 { [%eval 0.0] [%clk 0:21:33] } 43... Ra4 { [%eval 0.0] [%clk 0:25:12] } 44. g3 { [%eval 0.0] [%clk 0:19:50] } 1/2-1/2