Event: Round 4: William Shakhverdian - Jan Boersma
Date: 2023-07-28
White: William Shakhverdian
Black: Jan Boersma
Result: 1/2-1/2
ECO: E73
Opening: King's Indian Defense: Semi-Averbakh System
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:56] } 1... Nf6 { [%eval 0.28] [%clk 1:30:25] } 2. c4 { [%eval 0.16] [%clk 1:31:18] } 2... g6 { [%eval 0.3] [%clk 1:30:51] } 3. Nc3 { [%eval 0.31] [%clk 1:31:24] } 3... Bg7 { [%eval 0.7] [%clk 1:30:53] } 4. e4 { [%eval 0.67] [%clk 1:31:48] } 4... O-O { [%eval 0.4] [%clk 1:31:13] } 5. Be2 { [%eval 0.67] [%clk 1:31:45] } 5... d6 { [%eval 0.45] [%clk 1:28:58] } 6. Be3 { [%eval 0.44] [%clk 1:32:07] } 6... c5 { [%eval 0.63] [%clk 1:28:25] } 7. d5 { [%eval 0.13] [%clk 1:31:51] } 7... e6 { [%eval 0.71] [%clk 1:28:18] } 8. Nf3 { [%eval 0.55] [%clk 1:28:37] } 8... exd5 { [%eval 0.57] [%clk 1:21:04] } 9. cxd5 { [%eval 0.56] [%clk 1:28:57] } 9... Bg4 { [%eval 0.53] [%clk 1:11:54] } 10. O-O { [%eval 0.29] [%clk 1:26:46] } 10... Nbd7 { [%eval 0.82] [%clk 1:02:33] } 11. Re1?! { [%eval 0.17] } { Inaccuracy. Nd2 was best. } { [%clk 1:23:18] } 11... Re8?! { [%eval 0.84] } { Inaccuracy. Bxf3 was best. } { [%clk 0:50:52] } 12. Qc2?! { [%eval -0.08] } { Inaccuracy. Nd2 was best. } { [%clk 1:17:39] } 12... b5 { [%eval 0.35] [%clk 0:42:29] } 13. Bxb5 { [%eval 0.33] [%clk 1:16:17] } 13... Bxf3 { [%eval 0.32] [%clk 0:42:32] } 14. gxf3 { [%eval 0.4] [%clk 1:16:28] } 14... Ne5?! { [%eval 1.26] } { Inaccuracy. Rb8 was best. } { [%clk 0:34:03] } 15. Qd1 { [%eval 1.16] [%clk 1:08:02] } 15... Rf8 { [%eval 1.48] [%clk 0:33:12] } 16. h3?? { [%eval -0.76] } { Blunder. f4 was best. } { [%clk 1:04:18] } 16... Rb8?? { [%eval 0.96] } { Blunder. c4 was best. } { [%clk 0:27:08] } 17. f4 { [%eval 0.85] [%clk 0:51:25] } 17... Ned7 { [%eval 0.99] [%clk 0:27:24] } 18. a4 { [%eval 0.81] [%clk 0:46:40] } 18... Qc8 { [%eval 1.29] [%clk 0:23:18] } 19. Qd2 { [%eval 0.95] [%clk 0:37:18] } 19... a6 { [%eval 1.0] [%clk 0:23:08] } 20. Be2?! { [%eval 0.43] } { Inaccuracy. Bc4 was best. } { [%clk 0:36:56] } 20... Re8 { [%eval 0.48] [%clk 0:21:52] } 21. Qc2 { [%eval 0.06] [%clk 0:34:40] } 21... Rb4 { [%eval 0.0] [%clk 0:17:24] } 22. Bf3 { [%eval 0.0] [%clk 0:33:00] } 22... h6?! { [%eval 1.07] } { Inaccuracy. Nb6 was best. } { [%clk 0:15:26] } 23. Re2 { [%eval 0.54] [%clk 0:29:26] } 23... Nh7 { [%eval 0.97] [%clk 0:13:10] } 24. Bg2 { [%eval 0.72] [%clk 0:28:50] } 24... g5 { [%eval 0.71] [%clk 0:13:19] } 25. Rae1 { [%eval 0.72] [%clk 0:28:11] } 25... Ndf8 { [%eval 0.99] [%clk 0:10:57] } 26. Qc1? { [%eval -0.37] } { Mistake. Bd2 was best. } { [%clk 0:24:11] } 26... Ng6 { [%eval -0.34] [%clk 0:10:50] } 27. fxg5 { [%eval -0.61] [%clk 0:24:32] } 27... hxg5 { [%eval -0.55] [%clk 0:11:02] } 28. Bxg5 { [%eval -0.75] [%clk 0:20:42] } 28... Nxg5 { [%eval -0.85] [%clk 0:08:48] } 29. Qxg5 { [%eval -0.72] [%clk 0:21:07] } 29... Re5 { [%eval -0.79] [%clk 0:09:06] } 30. Qg3 { [%eval -0.82] [%clk 0:21:02] } 30... Bh6 { [%eval -0.97] [%clk 0:08:19] } 31. Nb1?? { [%eval -4.32] } { Blunder. Kh1 was best. } 1/2-1/2