Event: Mitropa Cup | Open
Site: chess24.com
Date: 2022-05-08
White: Koellner, Ruben Gideon
WhiteTitle: IM
WhiteElo: 2440
Black: Dragnev, Valentin
BlackTitle: GM
BlackElo: 2548
Result: 1/2-1/2
ECO: D02
Opening: Queen's Pawn Game: London System
Variant: Standard

1. d4 { [%eval 0.21] [%clk 1:29:28] } 1... Nf6 { [%eval 0.23] [%clk 1:30:37] } 2. Nf3 { [%eval 0.12] [%clk 1:29:51] } 2... d5 { [%eval 0.25] [%clk 1:30:55] } 3. Bf4 { [%eval 0.0] [%clk 1:30:08] } 3... c5 { [%eval 0.0] [%clk 1:31:02] } 4. e3 { [%eval 0.0] [%clk 1:30:31] } 4... Nc6 { [%eval 0.0] [%clk 1:31:26] } 5. Nbd2 { [%eval 0.0] [%clk 1:30:57] } 5... Bg4 { [%eval 0.24] [%clk 1:31:41] } 6. Bb5 { [%eval 0.03] [%clk 1:30:46] } 6... cxd4 { [%eval 0.05] [%clk 1:31:11] } 7. exd4 { [%eval 0.12] [%clk 1:30:36] } 7... e6 { [%eval 0.24] [%clk 1:31:10] } 8. c4 { [%eval 0.06] [%clk 1:09:42] } 8... Bd6 { [%eval 0.21] [%clk 1:30:49] } 9. Bxd6 { [%eval -0.11] [%clk 1:03:50] } 9... Qxd6 { [%eval 0.01] [%clk 1:29:56] } 10. c5 { [%eval 0.15] [%clk 1:03:59] } 10... Qf4 { [%eval 0.33] [%clk 1:29:36] } 11. Qe2 { [%eval 0.33] [%clk 0:57:01] } 11... O-O { [%eval 0.34] [%clk 1:26:05] } 12. Bxc6 { [%eval 0.0] [%clk 0:56:25] } 12... bxc6 { [%eval 0.03] [%clk 1:18:30] } 13. Qe5 { [%eval -0.14] [%clk 0:56:40] } 13... Qh6 { [%eval -0.09] [%clk 1:17:44] } 14. O-O { [%eval -0.07] [%clk 0:51:13] } 14... Rab8 { [%eval 0.0] [%clk 1:17:34] } 15. b3 { [%eval -0.14] [%clk 0:51:07] } 15... Rfc8 { [%eval -0.1] [%clk 1:14:56] } 16. Rfe1 { [%eval -0.23] [%clk 0:49:30] } 16... Rb7?! { [%eval 0.49] } { Inaccuracy. a5 was best. } { [%clk 1:10:23] } 17. Qe3?! { [%eval -0.28] } { Inaccuracy. Qe2 was best. } { [%clk 0:42:50] } 17... Qxe3 { [%eval -0.41] [%clk 1:07:49] } 18. Rxe3 { [%eval -0.41] [%clk 0:43:13] } 18... Bxf3 { [%eval 0.0] [%clk 1:06:18] } 19. Nxf3 { [%eval 0.0] [%clk 0:43:30] } 19... Nd7 { [%eval -0.05] [%clk 1:05:14] } 20. Kf1 { [%eval -0.05] [%clk 0:35:11] } 20... h6 { [%eval -0.07] [%clk 1:03:28] } 21. Rc1 { [%eval -0.05] [%clk 0:34:45] } 21... Re8 { [%eval 0.07] [%clk 0:53:18] } 22. Rce1 { [%eval -0.03] [%clk 0:33:41] } 22... Reb8 { [%eval 0.0] [%clk 0:52:47] } 23. Rd1 { [%eval -0.02] [%clk 0:32:30] } 23... Re8 { [%eval 0.19] [%clk 0:49:40] } 24. Rde1 { [%eval -0.03] [%clk 0:32:54] } 24... Reb8 { [%eval 0.07] [%clk 0:44:51] } 25. Rd1 { [%eval -0.07] [%clk 0:31:38] } 25... Re8 { [%eval 0.0] [%clk 0:43:48] } 26. Rde1 { [%eval -0.05] [%clk 0:28:44] } 1/2-1/2