Event: 2021 US Chess Championship
Site: Saint Louis, United States
Date: 2021-10-12
White: Xiong, Jeffery
WhiteElo: 2700
Black: Swiercz, Dariusz
BlackElo: 2647
Result: 1/2-1/2
ECO: B23
Opening: Sicilian Defense: Closed
Variant: Standard

1. e4 { [%eval 0.28] [%clk 1:30:53] } 1... c5 { [%eval 0.32] [%clk 1:30:46] } 2. Nc3 { [%eval 0.24] [%clk 1:31:06] } 2... a6 { [%eval 0.16] [%clk 1:25:04] } 3. g3 { [%eval 0.17] [%clk 1:31:19] } 3... b5 { [%eval 0.09] [%clk 1:25:03] } 4. Bg2 { [%eval 0.23] [%clk 1:31:25] } 4... Bb7 { [%eval 0.02] [%clk 1:25:28] } 5. Nh3 { [%eval -0.08] [%clk 1:31:04] } 5... e6 { [%eval 0.4] [%clk 1:24:54] } 6. O-O { [%eval 0.05] [%clk 1:30:15] } 6... b4?! { [%eval 0.84] } { Inaccuracy. Be7 was best. } { [%clk 1:21:55] } 7. Na4 { [%eval 0.55] [%clk 1:27:22] } 7... Nf6 { [%eval 0.87] [%clk 1:21:18] } 8. d3?! { [%eval 0.02] } { Inaccuracy. Re1 was best. } { [%clk 1:17:58] } 8... d6 { [%eval 0.48] [%clk 1:03:15] } 9. c3 { [%eval 0.37] [%clk 1:09:46] } 9... bxc3 { [%eval 0.56] [%clk 1:00:03] } 10. bxc3 { [%eval 0.49] [%clk 1:08:50] } 10... Nbd7 { [%eval 0.54] [%clk 1:00:29] } 11. Re1 { [%eval 0.53] [%clk 1:05:25] } 11... Bc6 { [%eval 0.97] [%clk 0:38:16] } 12. d4?! { [%eval 0.32] } { Inaccuracy. Nf4 was best. } { [%clk 0:58:51] } 12... cxd4 { [%eval 0.61] [%clk 0:32:23] } 13. cxd4 { [%eval 0.9] [%clk 0:59:07] } 13... d5?! { [%eval 1.76] } { Inaccuracy. Qa5 was best. } { [%clk 0:28:47] } 14. exd5 { [%eval 0.73] [%clk 0:56:29] } 14... Bxd5 { [%eval 1.1] [%clk 0:29:09] } 15. Nf4 { [%eval 1.62] [%clk 0:51:15] } 15... Bxg2 { [%eval 1.51] [%clk 0:29:07] } 16. Kxg2 { [%eval 1.57] [%clk 0:51:42] } 16... Qa5 { [%eval 1.27] [%clk 0:17:14] } 17. d5 { [%eval 1.0] [%clk 0:47:29] } 17... e5 { [%eval 1.59] [%clk 0:17:40] } 18. d6 { [%eval 1.81] [%clk 0:43:20] } 18... Qb4 { [%eval 0.92] [%clk 0:14:07] } 19. Bb2 { [%eval 0.66] [%clk 0:35:05] } 19... Bxd6 { [%eval 0.7] [%clk 0:13:12] } 20. Rb1 { [%eval 0.71] [%clk 0:35:31] } 20... Qb7+ { [%eval 0.75] [%clk 0:05:53] } 21. Kg1 { [%eval 0.67] [%clk 0:35:46] } 21... Qc7 { [%eval 0.51] [%clk 0:06:09] } 22. Nd5 { [%eval 0.81] [%clk 0:15:55] } 22... Nxd5 { [%eval 0.72] [%clk 0:06:34] } 23. Qxd5 { [%eval 0.58] [%clk 0:16:22] } 23... Rd8 { [%eval 0.69] [%clk 0:06:57] } 24. Bc3 { [%eval 0.71] [%clk 0:16:34] } 24... Nf6 { [%eval 0.89] [%clk 0:00:59] } 25. Bxe5 { [%eval 0.73] [%clk 0:16:38] } 25... O-O { [%eval 0.76] [%clk 0:00:55] } 26. Bxf6 { [%eval 0.67] [%clk 0:16:15] } 26... gxf6 { [%eval 0.72] [%clk 0:01:23] } 27. Rbc1 { [%eval 0.39] [%clk 0:09:53] } 27... Qd7?! { [%eval 1.16] } { Inaccuracy. Be5 was best. } { [%clk 0:01:22] } 28. Rc6?! { [%eval 0.49] } { Inaccuracy. Qf3 was best. } { [%clk 0:09:12] } 28... Rfe8?! { [%eval 1.21] } { Inaccuracy. Be5 was best. } { [%clk 0:00:32] } 29. Rd1 { [%eval 1.14] [%clk 0:06:36] } 29... Qg4 { [%eval 1.17] [%clk 0:00:36] } 30. Rxd6 { [%eval 1.29] [%clk 0:05:26] } 30... Rxd6 { [%eval 1.37] [%clk 0:01:03] } 31. Qxd6 { [%eval 1.1] [%clk 0:05:50] } 31... Qxa4 { [%eval 1.31] [%clk 0:01:30] } 32. Rd4 { [%eval 1.5] [%clk 0:05:59] } 32... Re1+ { [%eval 1.12] [%clk 0:01:47] } 33. Kg2 { [%eval 1.36] [%clk 0:06:23] } 33... Re6 { [%eval 1.06] [%clk 0:02:15] } 34. Qb8+ { [%eval 1.03] [%clk 0:06:06] } 34... Re8 { [%eval 1.12] [%clk 0:02:38] } 35. Rxa4 { [%eval 1.41] [%clk 0:03:56] } 35... Rxb8 { [%eval 1.22] [%clk 0:03:05] } 36. Rxa6 { [%eval 1.27] [%clk 0:04:21] } 36... Rb2 { [%eval 1.33] [%clk 0:03:28] } 37. a4 { [%eval 1.9] [%clk 0:03:16] } 37... Ra2 { [%eval 1.54] [%clk 0:03:34] } 38. Kf3?! { [%eval 0.87] } { Inaccuracy. h4 was best. } { [%clk 0:02:34] } 38... Kg7 { [%eval 0.91] [%clk 0:03:53] } 39. a5 { [%eval 1.06] [%clk 0:02:27] } 39... h5 { [%eval 1.29] [%clk 0:03:32] } 40. Ra8 { [%eval 0.9] [%clk 0:00:38] } 40... Kg6 { [%eval 1.03] [%clk 0:02:00] } 41. a6 { [%eval 1.08] [%clk 0:30:05] } 41... f5 { [%eval 0.99] [%clk 0:29:45] } 42. Ra7 { [%eval 0.58] [%clk 0:22:22] } 42... Ra3+ { [%eval 0.49] [%clk 0:22:21] } 43. Ke2 { [%eval 0.77] [%clk 0:13:27] } 43... f4 { [%eval 0.46] [%clk 0:21:55] } 44. Ra8 { [%eval 0.6] [%clk 0:03:19] } 44... fxg3 { [%eval 0.87] [%clk 0:13:14] } 45. hxg3 { [%eval 0.75] [%clk 0:03:46] } 45... Kg7 { [%eval 0.86] [%clk 0:10:57] } 46. Kd2 { [%eval 0.63] [%clk 0:03:57] } 46... Rf3 { [%eval 0.75] [%clk 0:07:04] } 47. Rc8?! { [%eval 0.05] } { Inaccuracy. Ke2 was best. } { [%clk 0:03:19] } 47... Rxf2+ { [%eval 0.0] [%clk 0:06:36] } 48. Kc3 { [%eval 0.0] [%clk 0:03:47] } 48... Ra2 { [%eval 0.0] [%clk 0:06:48] } 49. Rc6 { [%eval 0.0] [%clk 0:04:14] } 49... f5 { [%eval 0.0] [%clk 0:03:23] } 50. Kb4 { [%eval 0.0] [%clk 0:03:56] } 50... f4 { [%eval 0.0] [%clk 0:03:25] } 51. gxf4 { [%eval 0.0] [%clk 0:04:14] } 51... h4 { [%eval 0.0] [%clk 0:03:53] } 52. Kb5 { [%eval 0.0] [%clk 0:00:52] } 52... h3 { [%eval 0.0] [%clk 0:03:41] } 53. Rc3 { [%eval 0.0] [%clk 0:00:52] } 53... h2 { [%eval 0.0] [%clk 0:03:58] } 54. Rh3 { [%eval 0.0] [%clk 0:01:20] } 54... Rb2+ { [%eval 0.0] [%clk 0:02:14] } 55. Kc6 { [%eval 0.0] [%clk 0:01:36] } 55... Ra2 { [%eval 0.0] [%clk 0:02:39] } 56. Rxh2 { [%eval 0.0] [%clk 0:00:38] } 56... Rxh2 { [%eval 0.0] [%clk 0:02:55] } 57. a7 { [%eval 0.0] [%clk 0:01:05] } 57... Ra2 { [%eval 0.0] [%clk 0:03:20] } 58. Kb7 { [%eval 0.0] [%clk 0:01:32] } 58... Kf6 { [%eval 0.0] [%clk 0:03:46] } 59. f5 { [%eval 0.0] [%clk 0:01:49] } 59... Rxa7+ { [%eval 0.0] [%clk 0:04:07] } 60. Kxa7 { [%eval 0.0] [%clk 0:02:14] } 60... Kxf5 { [%clk 0:04:34] } 1/2-1/2