Event: Round 5: Alexander Kovchan - Florian Jacobs
Date: 2023-12-26
White: Alexander Kovchan
WhiteTitle: GM
WhiteElo: 2491
Black: Florian Jacobs
BlackElo: 2218
Result: 1-0
ECO: E11
Opening: Bogo-Indian Defense: Retreat Variation
Variant: Standard

1. c4 { [%eval 0.15] [%clk 1:30:55] } 1... e6 { [%eval 0.3] [%clk 1:30:48] } 2. Nf3 { [%eval 0.3] [%clk 1:29:20] } 2... Nf6 { [%eval 0.22] [%clk 1:31:02] } 3. d4 { [%eval 0.0] [%clk 1:27:20] } 3... d5 { [%eval 0.12] [%clk 1:31:22] } 4. g3 { [%eval 0.12] [%clk 1:27:13] } 4... Bb4+ { [%eval 0.19] [%clk 1:31:45] } 5. Bd2 { [%eval 0.19] [%clk 1:27:30] } 5... Be7 { [%eval 0.15] [%clk 1:32:08] } 6. Bg2 { [%eval 0.12] [%clk 1:27:20] } 6... O-O { [%eval 0.15] [%clk 1:32:29] } 7. O-O { [%eval 0.12] [%clk 1:27:37] } 7... Nbd7 { [%eval 0.14] [%clk 1:32:53] } 8. Qc2 { [%eval 0.18] [%clk 1:26:08] } 8... c6 { [%eval 0.26] [%clk 1:33:11] } 9. Bf4 { [%eval 0.24] [%clk 1:22:42] } 9... b6 { [%eval 0.14] [%clk 1:31:01] } 10. cxd5 { [%eval 0.2] [%clk 1:20:56] } 10... cxd5 { [%eval 0.38] [%clk 1:31:12] } 11. Bc7 { [%eval 0.03] [%clk 1:20:51] } 11... Qe8 { [%eval 0.02] [%clk 1:31:37] } 12. Nc3 { [%eval -0.13] [%clk 1:18:22] } 12... Bb7 { [%eval 0.16] [%clk 1:22:18] } 13. Rfc1 { [%eval 0.19] [%clk 1:10:54] } 13... a6 { [%eval 0.51] [%clk 1:05:23] } 14. Qb3 { [%eval 0.49] [%clk 1:07:06] } 14... b5 { [%eval 0.58] [%clk 1:02:05] } 15. a4 { [%eval 0.64] [%clk 0:59:37] } 15... b4 { [%eval 0.93] [%clk 1:00:27] } 16. a5 { [%eval 1.09] [%clk 0:59:15] } 16... Bc6 { [%eval 0.99] [%clk 0:49:03] } 17. Na4 { [%eval 0.89] [%clk 0:50:36] } 17... Bb5 { [%eval 0.98] [%clk 0:40:45] } 18. Nb6 { [%eval 0.86] [%clk 0:48:41] } 18... Ra7 { [%eval 0.69] [%clk 0:37:33] } 19. Ne5 { [%eval 0.71] [%clk 0:38:39] } 19... Nc5 { [%eval 0.9] [%clk 0:28:48] } 20. dxc5 { [%eval 0.92] [%clk 0:37:19] } 20... Rxc7 { [%eval 0.69] [%clk 0:27:29] } 21. Qxb4 { [%eval 0.86] [%clk 0:36:35] } 21... Bxe2 { [%eval 1.2] [%clk 0:26:23] } 22. Qd4 { [%eval 1.28] [%clk 0:35:28] } 22... Bb5 { [%eval 1.22] [%clk 0:24:56] } 23. b4 { [%eval 1.35] [%clk 0:33:52] } 23... Qd8 { [%eval 1.5] [%clk 0:21:09] } 24. Bf1 { [%eval 1.66] [%clk 0:29:56] } 24... Bxf1 { [%eval 1.57] [%clk 0:21:01] } 25. Kxf1 { [%eval 1.61] [%clk 0:30:23] } 25... Ne8?! { [%eval 2.3] } { Inaccuracy. Qe8 was best. } { [%clk 0:18:09] } 26. b5 { [%eval 2.28] [%clk 0:26:00] } 26... axb5? { [%eval 3.94] } { Mistake. Bg5 was best. } { [%clk 0:18:12] } 27. a6 { [%eval 3.88] [%clk 0:26:10] } 27... Ra7 { [%eval 3.67] [%clk 0:07:38] } 28. Nc6 { [%eval 3.88] [%clk 0:24:26] } 28... Bf6?! { [%eval 4.9] } { Inaccuracy. Qc7 was best. } { [%clk 0:08:03] } 29. Nxd8 { [%eval 5.03] [%clk 0:22:42] } 29... Bxd4 { [%eval 5.03] [%clk 0:08:27] } 30. Nc6 { [%eval 5.02] [%clk 0:23:02] } 30... Bxa1 { [%eval 4.83] [%clk 0:08:51] } 31. Rxa1 { [%eval 4.69] [%clk 0:22:43] } 1-0