Event: Game 1: Petrova, Kristyna - Sikorova, Olga
Site: https://lichess.org/broadcast/czech-individual-championship-2025--woman--quarterfinal/game-1/G9dc0Y4f/K1D7OBKp
White: Petrova, Kristyna
WhiteTitle: WGM
WhiteElo: 2240
Black: Sikorova, Olga
BlackTitle: WGM
BlackElo: 2141
Result: 1/2-1/2
ECO: E43
Opening: Nimzo-Indian Defense: St. Petersburg Variation
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:56] } 1... Nf6 { [%eval 0.19] [%clk 1:30:47] } 2. Nf3 { [%eval 0.11] [%clk 1:31:19] } 2... e6 { [%eval 0.14] [%clk 1:29:38] } 3. c4 { [%eval 0.11] [%clk 1:31:21] } 3... b6 { [%eval 0.23] [%clk 1:29:44] } 4. Nc3 { [%eval 0.15] [%clk 1:30:14] } 4... Bb4 { [%eval 0.14] [%clk 1:29:08] } 5. e3 { [%eval 0.16] [%clk 1:22:54] } 5... O-O { [%eval 0.12] [%clk 1:26:02] } 6. Bd3 { [%eval 0.1] [%clk 1:20:53] } 6... Bb7 { [%eval 0.22] [%clk 1:25:52] } 7. Qc2 { [%eval 0.0] [%clk 1:10:13] } 7... d6 { [%eval 0.31] [%clk 1:22:41] } 8. Bd2 { [%eval 0.0] [%clk 1:07:44] } 8... Qe7?! { [%eval 0.56] } { Inaccuracy. c5 was best. } { [%clk 1:19:12] } 9. a3 { [%eval 0.36] [%clk 0:40:43] } 9... Bxc3 { [%eval 0.3] [%clk 1:19:16] } 10. Bxc3 { [%eval 0.33] [%clk 0:41:12] } 10... Nbd7 { [%eval 0.35] [%clk 1:18:27] } 11. Rd1 { [%eval -0.02] [%clk 0:41:10] } 11... e5 { [%eval -0.11] [%clk 1:09:02] } 12. dxe5 { [%eval -0.16] [%clk 0:37:29] } 12... dxe5 { [%eval -0.07] [%clk 1:03:23] } 13. Be2 { [%eval -0.22] [%clk 0:28:00] } 13... Ne4 { [%eval -0.2] [%clk 0:58:13] } 14. O-O { [%eval -0.25] [%clk 0:28:09] } 14... Nxc3 { [%eval -0.19] [%clk 0:57:50] } 15. Qxc3 { [%eval -0.24] [%clk 0:28:35] } 15... c5 { [%eval -0.23] [%clk 0:38:34] } 16. Qd2 { [%eval -0.25] [%clk 0:23:16] } 16... Nf6 { [%eval 0.0] [%clk 0:36:47] } 17. Qd6 { [%eval -0.02] [%clk 0:23:36] } 17... Qxd6 { [%eval -0.03] [%clk 0:36:36] } 18. Rxd6 { [%eval -0.12] [%clk 0:24:04] } 18... Bxf3 { [%eval 0.0] [%clk 0:36:28] } 19. Bxf3 { [%eval -0.05] [%clk 0:20:39] } 19... e4 { [%eval -0.04] [%clk 0:36:52] } 20. Be2 { [%eval -0.14] [%clk 0:21:07] } 20... Rfd8 { [%eval -0.05] [%clk 0:37:02] } 21. Rfd1 { [%eval -0.04] [%clk 0:21:32] } 21... Rxd6 { [%eval -0.06] [%clk 0:37:25] } 22. Rxd6 { [%eval -0.02] [%clk 0:22:00] } 22... Kf8 { [%eval -0.08] [%clk 0:37:11] } 23. f4 { [%eval -0.03] [%clk 0:22:14] } 23... Ke7 { [%eval 0.0] [%clk 0:36:01] } 24. Rd1 { [%eval 0.0] [%clk 0:21:57] } 24... Rd8 { [%eval -0.02] [%clk 0:32:29] } 25. g4 { [%eval 0.0] [%clk 0:21:03] } 1/2-1/2