Event: Round 7: Yago De Moura Santiago - Everaldo Matsuura
Date: 2023-09-08
White: Yago De Moura Santiago
WhiteTitle: GM
Black: Everaldo Matsuura
BlackTitle: GM
Result: 1/2-1/2
ECO: A54
Opening: Old Indian Defense: Two Knights Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:42] } 1... Nf6 { [%eval 0.28] [%clk 1:30:15] } 2. c4 { [%eval 0.16] [%clk 1:31:04] } 2... d6 { [%eval 0.51] [%clk 1:30:33] } 3. Nc3 { [%eval 0.53] [%clk 1:30:12] } 3... e5 { [%eval 0.58] [%clk 1:30:52] } 4. Nf3 { [%eval 0.75] [%clk 1:30:36] } 4... Nbd7 { [%eval 0.75] [%clk 1:31:12] } 5. Bg5 { [%eval 0.38] [%clk 1:29:49] } 5... Be7 { [%eval 0.59] [%clk 1:29:02] } 6. e3 { [%eval 0.45] [%clk 1:30:14] } 6... c6 { [%eval 0.61] [%clk 1:27:25] } 7. Qc2 { [%eval 0.45] [%clk 1:30:39] } 7... O-O { [%eval 0.57] [%clk 1:20:36] } 8. Bd3 { [%eval 0.36] [%clk 1:25:56] } 8... Qc7?! { [%eval 1.32] } { Inaccuracy. h6 was best. } { [%clk 1:18:44] } 9. Bxh7+ { [%eval 1.15] [%clk 1:25:41] } 9... Nxh7 { [%eval 1.09] [%clk 1:17:45] } 10. Bxe7 { [%eval 1.02] [%clk 1:26:05] } 10... Re8 { [%eval 1.13] [%clk 1:17:18] } 11. Bh4 { [%eval 1.08] [%clk 1:26:27] } 11... Ndf8 { [%eval 1.3] [%clk 1:12:22] } 12. dxe5 { [%eval 1.18] [%clk 1:13:42] } 12... dxe5 { [%eval 1.24] [%clk 1:12:01] } 13. Nd2 { [%eval 1.14] [%clk 1:14:04] } 13... f5 { [%eval 1.13] [%clk 1:04:30] } 14. f3 { [%eval 1.13] [%clk 1:14:22] } 14... Qf7 { [%eval 1.19] [%clk 1:02:48] } 15. Bf2 { [%eval 1.16] [%clk 1:06:55] } 15... Re6 { [%eval 1.41] [%clk 0:52:00] } 16. h3 { [%eval 1.12] [%clk 1:06:16] } 16... Rg6 { [%eval 1.06] [%clk 0:46:41] } 17. g4?! { [%eval 0.44] } { Inaccuracy. Rg1 was best. } { [%clk 1:04:45] } 17... b5?! { [%eval 1.39] } { Inaccuracy. Rh6 was best. } { [%clk 0:42:51] } 18. Ne2?! { [%eval 0.43] } { Inaccuracy. Bg3 was best. } { [%clk 1:00:47] } 18... Be6?! { [%eval 1.45] } { Inaccuracy. fxg4 was best. } { [%clk 0:36:45] } 19. Bg3?! { [%eval 0.82] } { Inaccuracy. Ng3 was best. } { [%clk 0:58:49] } 19... Nd7 { [%eval 0.87] [%clk 0:29:23] } 20. e4 { [%eval 0.35] [%clk 0:59:09] } 20... fxg4 { [%eval 0.34] [%clk 0:26:59] } 21. fxg4 { [%eval 0.0] [%clk 0:57:56] } 21... bxc4 { [%eval 0.47] [%clk 0:26:31] } 22. b3?? { [%eval -1.26] } { Blunder. O-O-O was best. } { [%clk 0:51:37] } 22... Nc5?! { [%eval -0.21] } { Inaccuracy. Ng5 was best. } { [%clk 0:19:44] } 23. Nxc4 { [%eval -0.42] [%clk 0:51:48] } 23... Bxc4 { [%eval -0.31] [%clk 0:18:42] } 24. Qxc4 { [%eval -0.53] [%clk 0:52:13] } 24... Qxc4 { [%eval -0.4] [%clk 0:18:26] } 25. bxc4 { [%eval -0.5] [%clk 0:52:37] } 25... Ng5 { [%eval -0.24] [%clk 0:16:17] } 26. O-O-O { [%eval -0.28] [%clk 0:52:01] } 26... Ngxe4 { [%eval -0.26] [%clk 0:15:46] } 27. Rhf1 { [%eval -0.2] [%clk 0:43:24] } 1/2-1/2