Event: U.S. Senior Championship
Site: Saint Louis, United States
Date: 2021-07-16
White: Christiansen, Larry
Black: Benjamin, Joel
BlackElo: 2506
Result: 1-0
ECO: E76
Opening: King's Indian Defense: Four Pawns Attack
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:53] } 1... Nf6 { [%eval 0.19] [%clk 1:30:56] } 2. c4 { [%eval 0.11] [%clk 1:31:10] } 2... g6 { [%eval 0.28] [%clk 1:31:02] } 3. Nc3 { [%eval 0.17] [%clk 1:30:51] } 3... Bg7 { [%eval 0.48] [%clk 1:31:18] } 4. e4 { [%eval 0.67] [%clk 1:29:51] } 4... d6 { [%eval 0.63] [%clk 1:31:42] } 5. f4?! { [%eval -0.13] } { Inaccuracy. h3 was best. } { [%clk 1:24:27] } 5... O-O { [%eval 0.0] [%clk 1:30:28] } 6. Nf3 { [%eval 0.0] [%clk 1:24:52] } 6... c5 { [%eval 0.0] [%clk 1:30:36] } 7. dxc5 { [%eval -0.13] [%clk 1:24:51] } 7... Qa5 { [%eval 0.0] [%clk 1:29:07] } 8. Bd3 { [%eval 0.25] [%clk 1:25:12] } 8... Qxc5 { [%eval 0.69] [%clk 1:28:21] } 9. Qe2 { [%eval 0.81] [%clk 1:25:27] } 9... Bg4 { [%eval 0.71] [%clk 1:10:44] } 10. Be3 { [%eval 0.43] [%clk 1:25:35] } 10... Qa5 { [%eval 0.86] [%clk 1:04:39] } 11. O-O { [%eval 0.56] [%clk 1:25:41] } 11... Nc6 { [%eval 0.64] [%clk 1:04:14] } 12. Rac1 { [%eval 0.75] [%clk 1:21:14] } 12... Rfc8 { [%eval 1.14] [%clk 0:57:08] } 13. Kh1 { [%eval 1.08] [%clk 1:12:27] } 13... Nd7 { [%eval 1.11] [%clk 0:52:02] } 14. Qf2 { [%eval 1.21] [%clk 1:05:48] } 14... Nb4 { [%eval 1.39] [%clk 0:42:21] } 15. Bb1 { [%eval 1.3] [%clk 0:58:21] } 15... Bxf3 { [%eval 1.44] [%clk 0:36:07] } 16. Qxf3 { [%eval 1.31] [%clk 0:55:00] } 16... Rxc4 { [%eval 1.11] [%clk 0:36:00] } 17. e5 { [%eval 1.15] [%clk 0:54:58] } 17... Nc6?! { [%eval 1.93] } { Inaccuracy. e6 was best. } { [%clk 0:33:38] } 18. Rcd1 { [%eval 1.54] [%clk 0:54:41] } 18... Re8? { [%eval 3.35] } { Mistake. Nb6 was best. } { [%clk 0:31:59] } 19. Qe2 { [%eval 2.88] [%clk 0:39:41] } 19... Rxc3 { [%eval 3.0] [%clk 0:14:56] } 20. bxc3 { [%eval 3.3] [%clk 0:39:42] } 20... Qxc3?! { [%eval 4.39] } { Inaccuracy. Qc7 was best. } { [%clk 0:14:31] } 21. Bg1 { [%eval 3.67] [%clk 0:39:10] } 21... Kf8 { [%eval 4.32] [%clk 0:10:49] } 22. Rf3 { [%eval 3.51] [%clk 0:37:12] } 22... Qa5 { [%eval 3.61] [%clk 0:10:38] } 23. Rh3 { [%eval 3.62] [%clk 0:36:55] } 23... Nc5 { [%eval 3.82] [%clk 0:09:39] } 24. Rxh7 { [%eval 4.14] [%clk 0:36:53] } 24... dxe5? { [%eval 7.3] } { Mistake. Ne6 was best. } { [%clk 0:08:25] } 25. f5 { [%eval 6.89] [%clk 0:35:21] } 25... gxf5?? { [%eval #7] } { Checkmate is now unavoidable. Rd8 was best. } { [%clk 0:06:33] } 26. Qh5 { [%eval #6] [%clk 0:35:20] } 26... Kg8 { [%eval #4] [%clk 0:02:32] } 27. Bxf5 { [%eval #3] [%clk 0:35:37] } 27... e6 { [%eval #3] [%clk 0:01:04] } 28. Qg5 { [%eval #2] [%clk 0:35:57] } 1-0