Event: U.S. Senior Championship
Site: Saint Louis, United States
Date: 2021-07-18
White: Khachiyan, Melikset
WhiteElo: 2474
Black: Kaidanov, Gregory
BlackElo: 2547
Result: 1/2-1/2
ECO: C55
Opening: Italian Game: Two Knights Defense, Modern Bishop's Opening
Variant: Standard

1. e4 { [%eval 0.24] [%clk 1:30:57] } 1... e5 { [%eval 0.12] [%clk 1:30:55] } 2. Nf3 { [%eval 0.18] [%clk 1:31:17] } 2... Nc6 { [%eval 0.18] [%clk 1:31:19] } 3. Bc4 { [%eval 0.13] [%clk 1:31:39] } 3... Nf6 { [%eval 0.48] [%clk 1:31:17] } 4. d3 { [%eval 0.1] [%clk 1:32:04] } 4... h6 { [%eval 0.44] [%clk 1:31:19] } 5. c3 { [%eval 0.29] [%clk 1:31:26] } 5... d6 { [%eval 0.28] [%clk 1:31:06] } 6. Nbd2 { [%eval 0.4] [%clk 1:30:31] } 6... g5 { [%eval 0.55] [%clk 1:29:13] } 7. h3 { [%eval 0.37] [%clk 1:28:18] } 7... Bg7 { [%eval 0.64] [%clk 1:28:58] } 8. Bb3 { [%eval 0.23] [%clk 1:24:27] } 8... Be6 { [%eval 0.3] [%clk 1:26:34] } 9. d4 { [%eval 0.18] [%clk 1:12:36] } 9... exd4 { [%eval 0.15] [%clk 1:23:00] } 10. Nxd4 { [%eval 0.0] [%clk 1:12:33] } 10... Nxd4 { [%eval -0.03] [%clk 1:21:32] } 11. cxd4 { [%eval -0.03] [%clk 1:12:58] } 11... Bxb3 { [%eval -0.15] [%clk 1:06:52] } 12. Qxb3 { [%eval -0.14] [%clk 1:13:19] } 12... O-O { [%eval 0.0] [%clk 1:06:38] } 13. O-O { [%eval -0.2] [%clk 1:07:25] } 13... Qd7 { [%eval 0.03] [%clk 1:02:35] } 14. Re1 { [%eval 0.03] [%clk 1:02:47] } 14... Rfe8 { [%eval 0.0] [%clk 0:59:15] } 15. Qxb7 { [%eval 0.09] [%clk 0:49:31] } 15... Rab8 { [%eval 0.1] [%clk 0:57:06] } 16. Qa6 { [%eval 0.18] [%clk 0:49:55] } 16... Nd5 { [%eval 0.16] [%clk 0:54:51] } 17. Nf3 { [%eval -0.17] [%clk 0:45:57] } 17... Nb4 { [%eval -0.35] [%clk 0:53:54] } 18. Qe2 { [%eval 0.31] [%clk 0:39:34] } 18... d5 { [%eval -0.15] [%clk 0:42:02] } 19. e5 { [%eval -0.1] [%clk 0:39:41] } 19... Qf5 { [%eval -0.43] [%clk 0:42:13] } 20. b3 { [%eval -0.3] [%clk 0:31:11] } 20... Nc2 { [%eval -0.24] [%clk 0:40:55] } 21. Bb2 { [%eval -0.54] [%clk 0:31:32] } 21... f6 { [%eval -0.24] [%clk 0:38:52] } 22. g4 { [%eval -0.56] [%clk 0:22:29] } 22... Qg6 { [%eval -0.77] [%clk 0:38:34] } 23. Qa6 { [%eval -0.93] [%clk 0:21:34] } 23... Qf7 { [%eval -0.67] [%clk 0:33:08] } 24. e6 { [%eval -0.31] [%clk 0:20:54] } 24... Qe7 { [%eval -0.22] [%clk 0:33:10] } 25. Qxa7? { [%eval -1.6] } { Mistake. Re2 was best. } { [%clk 0:17:35] } 25... Ra8 { [%eval -1.33] [%clk 0:29:59] } 26. Qc5 { [%eval -1.47] [%clk 0:17:27] } 26... Nxe1 { [%eval -1.22] [%clk 0:29:27] } 27. Rxe1 { [%eval -1.36] [%clk 0:17:42] } 27... Rxa2 { [%eval -1.18] [%clk 0:29:47] } 28. Bc3 { [%eval -1.47] [%clk 0:17:16] } 28... Ra6 { [%eval -1.51] [%clk 0:28:44] } 29. Qxd5 { [%eval -1.41] [%clk 0:16:36] } 29... Rxe6 { [%eval -1.43] [%clk 0:28:44] } 30. Qc4 { [%eval -1.53] [%clk 0:16:26] } 30... Qf7 { [%eval -1.53] [%clk 0:28:33] } 31. Ra1 { [%eval -1.57] [%clk 0:14:42] } 31... Rb6 { [%eval -1.14] [%clk 0:21:11] } 32. d5 { [%eval -1.01] [%clk 0:10:52] } 32... Rd8 { [%eval -0.76] [%clk 0:18:47] } 33. Ra7 { [%eval -0.88] [%clk 0:11:07] } 33... Rxd5 { [%eval -0.68] [%clk 0:15:40] } 34. Rxc7 { [%eval -0.47] [%clk 0:11:11] } 34... Rd1+ { [%eval -0.51] [%clk 0:15:40] } 35. Kg2 { [%eval -0.45] [%clk 0:11:36] } 35... Qxc4 { [%eval -0.49] [%clk 0:15:50] } 36. bxc4 { [%eval -0.56] [%clk 0:11:41] } 36... Rb3 { [%eval -0.55] [%clk 0:12:00] } 37. Ba5 { [%eval -0.42] [%clk 0:10:50] } 37... Bf8 { [%eval 0.0] [%clk 0:11:09] } 38. Nd2 { [%eval 0.08] [%clk 0:09:21] } 38... Ra3 { [%eval 0.0] [%clk 0:08:15] } 39. Ne4 { [%eval 0.0] [%clk 0:07:41] } 39... Bg7 { [%eval 0.37] [%clk 0:07:09] } 40. Bc3 { [%eval 0.08] [%clk 0:38:04] } 40... Ra6 { [%eval 0.04] [%clk 0:37:13] } 41. c5 { [%eval 0.0] [%clk 0:35:18] } 41... Re6 { [%eval 0.02] [%clk 0:35:06] } 42. Ng3 { [%eval 0.0] [%clk 0:26:38] } 42... Rd3 { [%eval 0.0] [%clk 0:34:54] } 43. Ba1 { [%eval 0.03] [%clk 0:22:53] } 43... Ra6 { [%eval 0.08] [%clk 0:22:40] } 44. Nf5 { [%eval 0.05] [%clk 0:22:17] } 44... Rxa1 { [%eval 0.03] [%clk 0:21:31] } 45. Rxg7+ { [%eval 0.05] [%clk 0:22:40] } 45... Kf8 { [%eval 0.03] [%clk 0:20:10] } 46. Rh7 { [%eval 0.0] [%clk 0:15:17] } 1/2-1/2