Event: Round 9: Sivuk, Vitaly - Chinguun, Sumiya
Date: 2025-07-29
White: Sivuk, Vitaly
WhiteTitle: GM
WhiteElo: 2526
Black: Chinguun, Sumiya
BlackTitle: FM
BlackElo: 2415
Result: 1-0
ECO: E44
Opening: Nimzo-Indian Defense: St. Petersburg Variation, Romanishin–Psakhis Variation
Variant: Standard
TimeControl: 90+30

1. d4 { [%eval 0.17] [%clk 1:27:46] } 1... Nf6 { [%eval 0.19] [%clk 1:30:52] } 2. c4 { [%eval 0.18] [%clk 1:28:08] } 2... e6 { [%eval 0.14] [%clk 1:31:18] } 3. Nc3 { [%eval 0.09] [%clk 1:28:29] } 3... Bb4 { [%eval 0.09] [%clk 1:31:34] } 4. e3 { [%eval 0.06] [%clk 1:28:44] } 4... b6 { [%eval 0.29] [%clk 1:31:24] } 5. Ne2 { [%eval 0.21] [%clk 1:28:51] } 5... c5 { [%eval 0.37] [%clk 1:30:45] } 6. a3 { [%eval 0.37] [%clk 1:29:00] } 6... Ba5 { [%eval 0.41] [%clk 1:31:02] } 7. Rb1 { [%eval 0.39] [%clk 1:29:10] } 7... Qe7 { [%eval 0.46] [%clk 1:31:11] } 8. Bd2 { [%eval 0.71] [%clk 1:28:47] } 8... O-O { [%eval 0.36] [%clk 1:19:46] } 9. Ng3 { [%eval 0.23] [%clk 1:17:23] } 9... Bb7?! { [%eval 1.06] } { Inaccuracy. cxd4 was best. } { [%clk 1:11:09] } 10. Nge2? { [%eval -0.52] } { Mistake. d5 was best. } { [%clk 1:28:47] } 10... Bc8? { [%eval 0.61] } { Mistake. Bxc3 was best. } { [%clk 1:19:46] } 11. Ng3 { [%eval 0.32] [%clk 1:17:23] } 11... Bb7?! { [%eval 1.05] } { Inaccuracy. cxd4 was best. } { [%clk 1:11:09] } 12. d5 { [%eval 1.04] [%clk 1:11:34] } 12... exd5 { [%eval 1.18] [%clk 0:58:08] } 13. cxd5 { [%eval 1.22] [%clk 1:09:53] } 13... Na6 { [%eval 1.8] [%clk 0:46:32] } 14. Bd3 { [%eval 1.72] [%clk 1:01:03] } 14... d6?! { [%eval 2.7] } { Inaccuracy. g6 was best. } { [%clk 0:41:08] } 15. O-O { [%eval 2.53] [%clk 0:53:09] } 15... Bxc3 { [%eval 2.7] [%clk 0:36:51] } 16. Bxc3 { [%eval 2.67] [%clk 0:53:21] } 16... Nc7 { [%eval 2.66] [%clk 0:36:22] } 17. e4 { [%eval 2.81] [%clk 0:42:07] } 17... Bc8 { [%eval 2.7] [%clk 0:34:11] } 18. f4 { [%eval 2.45] [%clk 0:40:01] } 18... c4 { [%eval 3.0] [%clk 0:34:12] } 19. Bxf6 { [%eval 2.91] [%clk 0:33:43] } 19... Qxf6 { [%eval 2.93] [%clk 0:34:20] } 20. Bxc4 { [%eval 2.91] [%clk 0:34:07] } 20... Bb7 { [%eval 3.25] [%clk 0:33:41] } 21. Qd2 { [%eval 3.71] [%clk 0:34:05] } 21... b5 { [%eval 3.55] [%clk 0:33:38] } 22. Ba2 { [%eval 3.48] [%clk 0:34:02] } 22... Rae8 { [%eval 3.52] [%clk 0:33:14] } 23. Rbe1 { [%eval 3.61] [%clk 0:34:08] } 23... Qd8 { [%eval 3.76] [%clk 0:33:28] } 24. Qd4 { [%eval 3.88] [%clk 0:33:45] } 24... a5 { [%eval 4.8] [%clk 0:32:52] } 25. Nf5 { [%eval 5.0] [%clk 0:33:39] } 25... f6 { [%eval 5.52] [%clk 0:31:47] } 26. Qb6 { [%eval 5.31] [%clk 0:33:57] } 26... Ba8 { [%eval 5.46] [%clk 0:30:38] } 27. Nxd6 { [%eval 5.29] [%clk 0:32:41] } 27... Re7 { [%eval 6.71] [%clk 0:30:25] } 28. Nf5 { [%eval 5.83] [%clk 0:32:54] } 28... Ref7 { [%eval 7.02] [%clk 0:30:38] } 29. d6 { [%eval 7.01] [%clk 0:33:12] } 29... Ne6 { [%eval 7.6] [%clk 0:30:59] } 30. Qxd8 { [%eval 7.47] [%clk 0:33:22] } 30... Nxd8 { [%eval 7.79] [%clk 0:31:19] } 31. e5 { [%eval 7.53] [%clk 0:33:38] } 31... Kh8 { [%eval 8.55] [%clk 0:31:45] } 32. Bxf7 { [%eval 8.41] [%clk 0:33:51] } 1-0