Event: Round 9: Costa, Leonardo - Donchenko, Alexander
Date: 2024-09-28
White: Costa, Leonardo
WhiteTitle: IM
WhiteElo: 2472
Black: Donchenko, Alexander
BlackTitle: GM
BlackElo: 2638
Result: 0-1
ECO: B90
Opening: Sicilian Defense: Najdorf Variation
Variant: Standard

1. e4 { [%eval 0.18] [%clk 0:03:03] } 1... c5 { [%eval 0.25] [%clk 0:03:04] } 2. Nf3 { [%eval 0.31] [%clk 0:03:04] } 2... d6 { [%eval 0.21] [%clk 0:03:05] } 3. d4 { [%eval 0.27] [%clk 0:03:05] } 3... cxd4 { [%eval 0.19] [%clk 0:03:06] } 4. Nxd4 { [%eval 0.18] [%clk 0:03:06] } 4... Nf6 { [%eval 0.24] [%clk 0:03:08] } 5. Nc3 { [%eval 0.16] [%clk 0:03:07] } 5... a6 { [%eval 0.29] [%clk 0:03:09] } 6. Bd3 { [%eval 0.18] [%clk 0:03:08] } 6... g6 { [%eval 0.2] [%clk 0:03:07] } 7. f3 { [%eval 0.29] [%clk 0:03:09] } 7... Bg7 { [%eval 0.35] [%clk 0:03:04] } 8. Be3 { [%eval 0.37] [%clk 0:03:10] } 8... Nbd7 { [%eval 0.33] [%clk 0:03:05] } 9. Qd2 { [%eval 0.28] [%clk 0:03:10] } 9... h5 { [%eval 0.54] [%clk 0:03:03] } 10. a4 { [%eval 0.52] [%clk 0:03:11] } 10... Qc7 { [%eval 0.9] [%clk 0:02:57] } 11. O-O { [%eval 0.9] [%clk 0:03:04] } 11... Ne5 { [%eval 0.87] [%clk 0:02:54] } 12. a5 { [%eval 0.66] [%clk 0:02:58] } 12... Bd7 { [%eval 0.5] [%clk 0:02:52] } 13. h3 { [%eval 0.5] [%clk 0:02:50] } 13... Nc4?! { [%eval 1.11] } { Inaccuracy. O-O was best. } { [%clk 0:02:45] } 14. Bxc4 { [%eval 1.07] [%clk 0:02:51] } 14... Qxc4 { [%eval 1.04] [%clk 0:02:46] } 15. Rfd1 { [%eval 0.82] [%clk 0:02:40] } 15... Rc8 { [%eval 0.7] [%clk 0:02:43] } 16. Kh1 { [%eval 0.58] [%clk 0:02:31] } 16... h4 { [%eval 0.85] [%clk 0:02:43] } 17. Bg5?! { [%eval 0.26] } { Inaccuracy. Qe1 was best. } { [%clk 0:02:24] } 17... Rh5 { [%eval 0.47] [%clk 0:02:31] } 18. Nde2 { [%eval 0.17] [%clk 0:02:20] } 18... Qc5 { [%eval 0.68] [%clk 0:02:25] } 19. Be3 { [%eval 0.86] [%clk 0:02:17] } 19... Qc4 { [%eval 1.13] [%clk 0:02:15] } 20. Bd4 { [%eval 0.68] [%clk 0:02:11] } 20... Bh6 { [%eval 0.9] [%clk 0:02:08] } 21. Be3?! { [%eval 0.25] } { Inaccuracy. Qe1 was best. } { [%clk 0:02:12] } 21... Bxe3 { [%eval 0.23] [%clk 0:02:05] } 22. Qxe3 { [%eval 0.33] [%clk 0:02:13] } 22... Qb4 { [%eval 0.62] [%clk 0:02:01] } 23. Nf4 { [%eval 0.13] [%clk 0:02:01] } 23... Rxa5? { [%eval 1.78] } { Mistake. Qxb2 was best. } { [%clk 0:01:54] } 24. Rxa5?? { [%eval -0.06] } { Blunder. Nd3 was best. } { [%clk 0:01:21] } 24... Qxa5 { [%eval -0.02] [%clk 0:01:55] } 25. Nfd5 { [%eval -0.05] [%clk 0:01:22] } 25... Nxd5 { [%eval -0.03] [%clk 0:01:49] } 26. exd5 { [%eval -0.14] [%clk 0:01:16] } 26... Bf5 { [%eval -0.01] [%clk 0:01:24] } 27. Re1 { [%eval -0.05] [%clk 0:01:06] } 27... e5 { [%eval 0.0] [%clk 0:00:59] } 28. dxe6 { [%eval 0.0] [%clk 0:01:04] } 28... fxe6 { [%eval 0.18] [%clk 0:01:00] } 29. Qh6?! { [%eval -0.38] } { Inaccuracy. Qf4 was best. } { [%clk 0:00:57] } 29... Qb4 { [%eval -0.5] [%clk 0:00:59] } 30. Qh8+? { [%eval -1.72] } { Mistake. Rd1 was best. } { [%clk 0:00:46] } 30... Kd7 { [%eval -1.66] [%clk 0:01:00] } 31. Qg7+ { [%eval -1.8] [%clk 0:00:47] } 31... Kc6 { [%eval -1.69] [%clk 0:00:59] } 32. Rd1 { [%eval -1.9] [%clk 0:00:35] } 32... Kb6 { [%eval -1.65] [%clk 0:00:47] } 33. Qd7? { [%eval -3.01] } { Mistake. Na2 was best. } { [%clk 0:00:34] } 33... Rc6 { [%eval -2.93] [%clk 0:00:45] } 34. Ne2?! { [%eval -3.87] } { Inaccuracy. Ne4 was best. } { [%clk 0:00:11] } 34... e5 { [%eval -3.9] [%clk 0:00:39] } 35. Nc3? { [%eval -7.11] } { Mistake. Qd8+ was best. } { [%clk 0:00:11] } 35... Bxd7 { [%eval -7.14] [%clk 0:00:40] } 36. Nd5+ { [%eval -7.05] [%clk 0:00:12] } 36... Kc5 { [%eval -6.69] [%clk 0:00:40] } 0-1