Event: U.S. Senior Championship
Site: Saint Louis, United States
Date: 2021-07-22
White: Shabalov, Alexander
WhiteElo: 2521
Black: Christiansen, Larry
Result: 1/2-1/2
ECO: C43
Opening: Petrov's Defense: Modern Attack, Murrey Variation
Variant: Standard

1. e4 { [%eval 0.24] [%clk 1:30:56] } 1... e5 { [%eval 0.12] [%clk 1:30:47] } 2. Nf3 { [%eval 0.18] [%clk 1:31:08] } 2... Nf6 { [%eval 0.21] [%clk 1:30:58] } 3. d4 { [%eval 0.32] [%clk 1:30:20] } 3... Nxe4 { [%eval 0.28] [%clk 1:30:57] } 4. Bd3 { [%eval 0.32] [%clk 1:30:24] } 4... Nc6 { [%eval 0.25] [%clk 1:30:54] } 5. Bxe4 { [%eval 0.12] [%clk 1:23:54] } 5... d5 { [%eval 0.21] [%clk 1:31:01] } 6. Bg5 { [%eval 0.0] [%clk 1:24:14] } 6... Qd7 { [%eval 0.02] [%clk 1:30:22] } 7. Nxe5 { [%eval 0.0] [%clk 1:10:39] } 7... Nxe5 { [%eval 0.0] [%clk 1:30:23] } 8. dxe5 { [%eval 0.0] [%clk 1:10:51] } 8... dxe4 { [%eval -0.08] [%clk 1:30:42] } 9. O-O { [%eval 0.0] [%clk 1:11:12] } 9... h6 { [%eval 0.0] [%clk 1:20:20] } 10. Bh4 { [%eval -0.37] [%clk 1:06:45] } 10... Bb4 { [%eval 0.0] [%clk 0:59:15] } 11. Qe2 { [%eval -0.14] [%clk 1:00:24] } 11... Qc6 { [%eval -0.28] [%clk 0:59:25] } 12. c3 { [%eval -0.15] [%clk 0:49:22] } 12... Bc5 { [%eval 0.0] [%clk 0:57:55] } 13. Nd2 { [%eval -0.13] [%clk 0:47:22] } 13... g5 { [%eval -0.18] [%clk 0:51:38] } 14. Bg3 { [%eval -0.23] [%clk 0:46:53] } 14... h5 { [%eval -0.31] [%clk 0:49:17] } 15. h4 { [%eval 0.0] [%clk 0:38:17] } 15... e3 { [%eval -0.1] [%clk 0:47:44] } 16. fxe3 { [%eval -0.1] [%clk 0:33:46] } 16... Bg4 { [%eval -0.13] [%clk 0:47:46] } 17. Qf2 { [%eval -0.32] [%clk 0:34:10] } 17... O-O-O { [%eval -0.28] [%clk 0:47:40] } 18. Nb3 { [%eval -0.14] [%clk 0:34:07] } 18... gxh4 { [%eval 0.02] [%clk 0:46:06] } 19. Bxh4 { [%eval 0.0] [%clk 0:34:18] } 19... Rdg8 { [%eval 0.0] [%clk 0:46:04] } 20. Kh2?! { [%eval -0.87] } { Inaccuracy. Nxc5 was best. } { [%clk 0:30:21] } 20... Be6 { [%eval -0.89] [%clk 0:45:33] } 21. Nd4 { [%eval -1.1] [%clk 0:26:00] } 21... Qe4? { [%eval 0.0] } { Mistake. Bxd4 was best. } { [%clk 0:37:49] } 22. Bf6 { [%eval -0.47] [%clk 0:25:59] } 22... Bd5 { [%eval -0.29] [%clk 0:32:12] } 23. Rg1 { [%eval -0.57] [%clk 0:25:56] } 23... Bxd4 { [%eval -0.48] [%clk 0:26:56] } 24. exd4 { [%eval -0.59] [%clk 0:23:56] } 24... Rg4?? { [%eval 2.6] } { Blunder. Rh6 was best. } { [%clk 0:27:03] } 25. Rae1 { [%eval 2.4] [%clk 0:22:03] } 25... Qh7 { [%eval 2.55] [%clk 0:24:30] } 26. Bxh8 { [%eval 2.72] [%clk 0:18:50] } 26... Qxh8 { [%eval 2.69] [%clk 0:24:56] } 27. Re3 { [%eval 3.19] [%clk 0:17:53] } 27... Qh6 { [%eval 3.44] [%clk 0:19:00] } 28. Rg3 { [%eval 3.58] [%clk 0:15:02] } 28... Rf4 { [%eval 3.69] [%clk 0:19:00] } 29. Qe1? { [%eval 2.13] } { Mistake. Qe2 was best. } { [%clk 0:11:19] } 29... Rh4+ { [%eval 2.17] [%clk 0:17:27] } 30. Rh3 { [%eval 2.34] [%clk 0:11:36] } 30... Rg4 { [%eval 2.17] [%clk 0:17:42] } 31. Qf2 { [%eval 2.35] [%clk 0:09:39] } 31... Rf4?? { [%eval 4.94] } { Blunder. h4 was best. } { [%clk 0:13:45] } 32. Qe3? { [%eval 2.49] } { Mistake. Qd2 was best. } { [%clk 0:08:43] } 32... Qg5 { [%eval 2.59] [%clk 0:12:31] } 33. b3 { [%eval 2.25] [%clk 0:05:37] } 33... Qf5?! { [%eval 2.92] } { Inaccuracy. h4 was best. } { [%clk 0:08:17] } 34. c4 { [%eval 3.19] [%clk 0:05:22] } 34... Be4 { [%eval 3.07] [%clk 0:08:39] } 35. Re1 { [%eval 3.13] [%clk 0:03:58] } 35... h4 { [%eval 3.12] [%clk 0:08:03] } 36. Re2 { [%eval 3.15] [%clk 0:03:49] } 36... c5 { [%eval 3.01] [%clk 0:07:24] } 37. Rd2?! { [%eval 2.24] } { Inaccuracy. d5 was best. } { [%clk 0:03:48] } 37... Rg4 { [%eval 1.85] [%clk 0:06:12] } 38. Kg1? { [%eval 0.51] } { Mistake. Qh6 was best. } { [%clk 0:03:39] } 38... Qg6 { [%eval 0.47] [%clk 0:05:13] } 39. Rh2 { [%eval 0.1] [%clk 0:03:34] } 39... Rg3?! { [%eval 0.67] } { Inaccuracy. Bc6 was best. } { [%clk 0:04:14] } 40. Qf4?! { [%eval 0.0] } { Inaccuracy. Qf2 was best. } { [%clk 0:31:26] } 40... h3 { [%eval 0.44] [%clk 0:33:50] } 41. Qf6 { [%eval 0.37] [%clk 0:18:46] } 41... Qxf6 { [%eval 0.6] [%clk 0:31:31] } 42. exf6 { [%eval 0.54] [%clk 0:19:11] } 42... Bxg2 { [%eval 0.77] [%clk 0:31:54] } 43. dxc5 { [%eval 0.85] [%clk 0:18:10] } 43... Rg6 { [%eval 0.6] [%clk 0:30:43] } 44. Kf2 { [%eval 0.36] [%clk 0:07:34] } 44... Rxf6+ { [%eval 0.39] [%clk 0:30:53] } 45. Ke3 { [%eval 0.5] [%clk 0:08:01] } 45... Rg6 { [%eval 0.67] [%clk 0:27:51] } 46. b4 { [%eval 0.47] [%clk 0:07:14] } 46... f5 { [%eval 0.77] [%clk 0:27:35] } 47. Kf4?! { [%eval 0.0] } { Inaccuracy. Rd4 was best. } { [%clk 0:05:18] } 47... Rg4+ { [%eval 0.0] [%clk 0:27:44] } 48. Kxf5 { [%eval 0.0] [%clk 0:05:43] } 48... Rxc4 { [%eval 0.0] [%clk 0:28:07] } 49. a3 { [%eval 0.0] [%clk 0:05:21] } 49... a5 { [%eval 0.0] [%clk 0:28:20] } 50. Ke4 1/2-1/2