Event: Round 9: Vasilyev, Mikhail - Okamura, Milton Kasuo
Site: https://lichess.org/broadcast/fide-world-senior-championship-2025--open-65/round-9/xIMoHryf/yJ2sdhcW
Date: 2025-10-30
White: Vasilyev, Mikhail
WhiteTitle: IM
WhiteElo: 1806
Black: Okamura, Milton Kasuo
BlackElo: 2009
Result: 1-0
ECO: C99
Opening: Ruy Lopez: Closed, Chigorin Defense, Panov System
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:57] } 1... e5 { [%eval 0.22] [%clk 1:30:52] } 2. Nf3 { [%eval 0.13] [%clk 1:31:16] } 2... Nc6 { [%eval 0.21] [%clk 1:31:16] } 3. Bb5 { [%eval 0.15] [%clk 1:31:39] } 3... a6 { [%eval 0.21] [%clk 1:31:37] } 4. Ba4 { [%eval 0.11] [%clk 1:31:55] } 4... Nf6 { [%eval 0.28] [%clk 1:31:55] } 5. O-O { [%eval 0.16] [%clk 1:32:13] } 5... Be7 { [%eval 0.24] [%clk 1:32:18] } 6. Re1 { [%eval 0.19] [%clk 1:32:34] } 6... b5 { [%eval 0.14] [%clk 1:32:35] } 7. Bb3 { [%eval 0.18] [%clk 1:32:57] } 7... d6 { [%eval 0.32] [%clk 1:32:52] } 8. c3 { [%eval 0.35] [%clk 1:33:07] } 8... O-O { [%eval 0.37] [%clk 1:33:10] } 9. h3 { [%eval 0.42] [%clk 1:33:23] } 9... Na5 { [%eval 0.45] [%clk 1:33:06] } 10. Bc2 { [%eval 0.45] [%clk 1:33:41] } 10... c5 { [%eval 0.53] [%clk 1:33:16] } 11. d4 { [%eval 0.45] [%clk 1:34:01] } 11... Qc7 { [%eval 0.51] [%clk 1:33:23] } 12. Nbd2 { [%eval 0.24] [%clk 1:34:17] } 12... cxd4 { [%eval 0.3] [%clk 1:33:25] } 13. cxd4 { [%eval 0.29] [%clk 1:34:39] } 13... Nc6 { [%eval 0.26] [%clk 1:33:36] } 14. d5 { [%eval 0.0] [%clk 1:32:39] } 14... Nb4 { [%eval 0.13] [%clk 1:32:53] } 15. Bb1 { [%eval 0.0] [%clk 1:32:09] } 15... a5 { [%eval 0.0] [%clk 1:32:47] } 16. Nf1 { [%eval 0.0] [%clk 1:26:26] } 16... Bd7 { [%eval 0.19] [%clk 1:32:45] } 17. Bd2 { [%eval -0.03] [%clk 1:18:46] } 17... Na6 { [%eval 0.06] [%clk 1:31:55] } 18. Qe2 { [%eval 0.08] [%clk 1:15:04] } 18... Nc5 { [%eval 0.15] [%clk 1:22:05] } 19. g4?! { [%eval -0.75] } { Inaccuracy. Rc1 was best. } { [%clk 1:13:08] } 19... Rfc8?! { [%eval 0.13] } { Inaccuracy. h5 was best. } { [%clk 1:18:27] } 20. Ng3 { [%eval 0.02] [%clk 1:08:18] } 20... Qb7 { [%eval 0.09] [%clk 1:14:45] } 21. Kh2 { [%eval -0.16] [%clk 0:53:50] } 21... b4 { [%eval -0.14] [%clk 1:12:32] } 22. Be3 { [%eval -0.18] [%clk 0:53:28] } 22... Rc7 { [%eval 0.11] [%clk 1:05:25] } 23. Qd2 { [%eval 0.02] [%clk 0:52:50] } 23... Rac8 { [%eval 0.0] [%clk 1:05:04] } 24. Nxe5 { [%eval 0.03] [%clk 0:47:46] } 24... Bb5? { [%eval 1.69] } { Mistake. dxe5 was best. } { [%clk 1:03:43] } 25. Nf3 { [%eval 1.76] [%clk 0:47:21] } 25... Re8?! { [%eval 2.96] } { Inaccuracy. Nfd7 was best. } { [%clk 1:02:14] } 26. Nd4?! { [%eval 1.95] } { Inaccuracy. Bd4 was best. } { [%clk 0:46:03] } 26... Bd7? { [%eval 3.57] } { Mistake. Nfd7 was best. } { [%clk 1:01:02] } 27. g5 { [%eval 3.43] [%clk 0:45:23] } 1-0