Event: CZECH OPEN 2025 - A - PARDUBICE OPEN - open grandmaster tournament
Site: Pardubice, Czech Republic
Date: 2025-07-26
White: Csonka, Balazs
WhiteTitle: IM
WhiteElo: 2467
Black: Kejna, Piotr
BlackTitle: FM
BlackElo: 2288
Result: 1-0
ECO: E73
Opening: King's Indian Defense: Semi-Averbakh System
Variant: Standard
TimeControl: 90 min / 40 moves + 30 min + 30 s/move

1. d4 { [%eval 0.17] [%clk 1:30:57] } 1... Nf6 { [%eval 0.19] [%clk 1:30:54] } 2. c4 { [%eval 0.18] [%clk 1:31:21] } 2... g6 { [%eval 0.28] [%clk 1:31:21] } 3. Nc3 { [%eval 0.18] [%clk 1:31:44] } 3... Bg7 { [%eval 0.51] [%clk 1:31:45] } 4. e4 { [%eval 0.4] [%clk 1:32:08] } 4... d6 { [%eval 0.55] [%clk 1:32:13] } 5. Be2 { [%eval 0.51] [%clk 1:32:25] } 5... O-O { [%eval 0.48] [%clk 1:32:09] } 6. Be3 { [%eval 0.5] [%clk 1:32:44] } 6... e5 { [%eval 0.61] [%clk 1:31:56] } 7. d5 { [%eval 0.57] [%clk 1:33:05] } 7... Na6 { [%eval 0.65] [%clk 1:30:42] } 8. h3 { [%eval 0.73] [%clk 1:32:47] } 8... Nc5 { [%eval 0.67] [%clk 1:30:33] } 9. Qc2 { [%eval 0.75] [%clk 1:33:06] } 9... a5 { [%eval 0.82] [%clk 1:29:55] } 10. Nf3 { [%eval 0.77] [%clk 1:33:21] } 10... c6 { [%eval 0.87] [%clk 1:23:47] } 11. Nd2 { [%eval 0.56] [%clk 1:25:55] } 11... Ne8 { [%eval 0.73] [%clk 1:21:36] } 12. O-O { [%eval 0.81] [%clk 1:04:10] } 12... f5 { [%eval 0.79] [%clk 1:21:07] } 13. exf5 { [%eval 0.71] [%clk 1:00:45] } 13... gxf5 { [%eval 0.62] [%clk 1:21:05] } 14. f4 { [%eval 0.7] [%clk 0:59:37] } 14... e4 { [%eval 0.75] [%clk 1:20:28] } 15. Rad1 { [%eval 0.73] [%clk 0:48:27] } 15... Qh4 { [%eval 1.02] [%clk 1:18:17] } 16. Rf2 { [%eval 1.06] [%clk 0:41:34] } 16... Rf6 { [%eval 1.22] [%clk 1:14:50] } 17. Nf1 { [%eval 1.27] [%clk 0:39:28] } 17... Rg6 { [%eval 1.22] [%clk 1:14:34] } 18. Kh2?! { [%eval 0.63] } { Inaccuracy. Na4 was best. } { [%clk 0:38:55] } 18... Rh6?! { [%eval 1.26] } { Inaccuracy. a4 was best. } { [%clk 1:14:56] } 19. Qd2?! { [%eval 0.44] } { Inaccuracy. Na4 was best. } { [%clk 0:34:43] } 19... Nf6?! { [%eval 1.34] } { Inaccuracy. a4 was best. } { [%clk 1:11:31] } 20. Kg1 { [%eval 1.31] [%clk 0:29:49] } 20... Rg6?! { [%eval 1.91] } { Inaccuracy. Ne8 was best. } { [%clk 1:01:08] } 21. dxc6 { [%eval 1.85] [%clk 0:25:03] } 21... bxc6 { [%eval 1.82] [%clk 1:01:27] } 22. Qxd6 { [%eval 1.99] [%clk 0:23:58] } 22... Nfd7 { [%eval 1.84] [%clk 1:00:52] } 23. Qd2 { [%eval 2.05] [%clk 0:20:30] } 23... Qxh3? { [%eval 3.6] } { Mistake. Rb8 was best. } { [%clk 1:00:23] } 24. g4 { [%eval 3.58] [%clk 0:13:59] } 24... Qh6 { [%eval 3.38] [%clk 0:46:00] } 25. g5 { [%eval 2.86] [%clk 0:08:03] } 25... Bh8?! { [%eval 4.49] } { Inaccuracy. Bf8 was best. } { [%clk 0:41:47] } 26. Bxc5 { [%clk 0:02:04] } 26... Nxc5 { [%clk 0:42:16] } 27. Qd8+ { [%clk 0:02:26] } 27... Qf8 { [%clk 0:42:35] } 28. Qxf8+ { [%clk 0:02:41] } 28... Kxf8 { [%clk 0:43:04] } 29. Rd8+ { [%clk 0:03:03] } 29... Kg7 { [%clk 0:43:27] } 30. Ng3 { [%clk 0:02:02] } 30... h6 { [%clk 0:43:43] } 31. Bh5 { [%clk 0:01:55] } 31... Nd3 { [%clk 0:41:49] } 32. Bxg6 { [%clk 0:01:16] } 32... Nxf2 { [%clk 0:42:12] } 33. Kxf2 { [%clk 0:01:33] } 33... hxg5 { [%clk 0:42:28] } 34. Bxf5 { [%clk 0:01:41] } 34... gxf4 { [%clk 0:42:56] } 35. Ngxe4 { [%clk 0:01:07] } 1-0