Event: Round 8: Kovchan, Alexander - Roberson, Peter T
Date: 2025-03-02
White: Kovchan, Alexander
WhiteTitle: GM
WhiteElo: 2453
Black: Roberson, Peter T
BlackTitle: IM
BlackElo: 2386
Result: 1-0
ECO: C07
Opening: French Defense: Tarrasch Variation, Chistyakov Defense
Variant: Standard
TimeControl: 15+10

1. e4 { [%eval 0.18] [%clk 0:15:18] } 1... e6 { [%eval 0.28] [%clk 0:15:19] } 2. d4 { [%eval 0.28] [%clk 0:15:27] } 2... d5 { [%eval 0.33] [%clk 0:15:28] } 3. Nd2 { [%eval 0.17] [%clk 0:15:35] } 3... c5 { [%eval 0.17] [%clk 0:15:37] } 4. exd5 { [%eval 0.14] [%clk 0:15:42] } 4... Qxd5 { [%eval 0.08] [%clk 0:15:45] } 5. Ngf3 { [%eval 0.09] [%clk 0:15:51] } 5... cxd4 { [%eval 0.16] [%clk 0:15:53] } 6. Bc4 { [%eval 0.0] [%clk 0:15:59] } 6... Qd6 { [%eval 0.14] [%clk 0:15:58] } 7. O-O { [%eval 0.14] [%clk 0:16:06] } 7... Nf6 { [%eval 0.1] [%clk 0:16:06] } 8. Nb3 { [%eval 0.16] [%clk 0:16:11] } 8... Nc6 { [%eval 0.15] [%clk 0:16:14] } 9. Nbxd4 { [%eval 0.15] [%clk 0:16:18] } 9... Nxd4 { [%eval 0.16] [%clk 0:16:22] } 10. Nxd4 { [%eval 0.18] [%clk 0:16:26] } 10... Be7 { [%eval 0.17] [%clk 0:16:27] } 11. Nb5 { [%eval 0.03] [%clk 0:16:19] } 11... Qc6 { [%eval 0.06] [%clk 0:15:43] } 12. Qe2 { [%eval 0.08] [%clk 0:16:26] } 12... O-O { [%eval -0.03] [%clk 0:15:25] } 13. Bf4 { [%eval 0.02] [%clk 0:16:11] } 13... a6 { [%eval 0.08] [%clk 0:14:25] } 14. Nd4 { [%eval 0.0] [%clk 0:15:42] } 14... Qb6 { [%eval 0.14] [%clk 0:14:15] } 15. c3 { [%eval 0.08] [%clk 0:14:48] } 15... Bd7 { [%eval 0.31] [%clk 0:12:01] } 16. Rad1 { [%eval 0.32] [%clk 0:14:43] } 16... Rac8 { [%eval 0.3] [%clk 0:11:38] } 17. Bb3 { [%eval 0.21] [%clk 0:14:30] } 17... Rfe8 { [%eval 0.37] [%clk 0:11:00] } 18. Rd3 { [%eval 0.08] [%clk 0:14:26] } 18... Nd5 { [%eval 0.1] [%clk 0:08:59] } 19. Be5 { [%eval 0.16] [%clk 0:14:27] } 19... Bf6 { [%eval 0.09] [%clk 0:08:50] } 20. Rg3 { [%eval 0.21] [%clk 0:14:26] } 20... Rc5 { [%eval 0.68] [%clk 0:08:08] } 21. Nf3 { [%eval 0.64] [%clk 0:13:22] } 21... Bxe5 { [%eval 0.54] [%clk 0:06:40] } 22. Nxe5 { [%eval 0.45] [%clk 0:13:22] } 22... Nf6?? { [%eval 2.48] } { Blunder. Qc7 was best. } { [%clk 0:06:31] } 23. Qe3 { [%eval 2.55] [%clk 0:11:55] } 23... g6 { [%eval 2.85] [%clk 0:05:34] } 24. Re1 { [%eval 2.96] [%clk 0:11:35] } 24... Kg7?! { [%eval 3.82] } { Inaccuracy. Qc7 was best. } { [%clk 0:03:25] } 25. Rf3 { [%eval 4.12] [%clk 0:11:24] } 25... Re7 { [%eval 5.13] [%clk 0:02:56] } 26. Rxf6 { [%eval 5.06] [%clk 0:11:07] } 26... Kxf6?? { [%eval #4] } { Checkmate is now unavoidable. Rb5 was best. } { [%clk 0:02:54] } 27. Ng4+ { [%eval #3] [%clk 0:11:11] } 27... Kf5 { [%eval #3] [%clk 0:02:51] } 28. h4 { [%eval #2] [%clk 0:07:50] } 28... Kxg4 { [%eval #2] [%clk 0:02:16] } 29. Bd1+ { [%eval #1] [%clk 0:07:57] } 29... Kxh4 { [%clk 0:02:17] } 30. Qg3# { [%clk 0:08:05] } 1-0