Event: Round 12: Knuedel, Torben - Donchenko, Alexander
Date: 2025-05-24
White: Knuedel, Torben
WhiteTitle: FM
WhiteElo: 2440
Black: Donchenko, Alexander
BlackTitle: GM
BlackElo: 2578
Result: 0-1
ECO: B94
Opening: Sicilian Defense: Najdorf Variation
Variant: Standard
TimeControl: 3+2

1. e4 { [%eval 0.18] [%clk 0:03:02] } 1... c5 { [%eval 0.25] [%clk 0:03:04] } 2. Nf3 { [%eval 0.2] [%clk 0:03:03] } 2... d6 { [%eval 0.31] [%clk 0:03:06] } 3. d4 { [%eval 0.22] [%clk 0:03:04] } 3... cxd4 { [%eval 0.19] } 4. Nxd4 { [%eval 0.18] [%clk 0:03:05] } 4... Nf6 { [%eval 0.31] [%clk 0:03:09] } 5. Nc3 { [%eval 0.32] [%clk 0:03:05] } 5... a6 { [%eval 0.23] } 6. Bg5 { [%eval 0.0] [%clk 0:03:07] } 6... Nbd7 { [%eval 0.19] [%clk 0:03:11] } 7. a3 { [%eval 0.11] [%clk 0:03:07] } 7... h6 { [%eval 0.26] [%clk 0:03:12] } 8. Bxf6 { [%eval 0.29] [%clk 0:03:06] } 8... Nxf6 { [%eval 0.32] [%clk 0:03:13] } 9. Bc4 { [%eval 0.34] [%clk 0:03:07] } 9... e6 { [%eval 0.45] [%clk 0:03:15] } 10. Qe2 { [%eval 0.51] [%clk 0:03:01] } 10... Be7 { [%eval 0.77] [%clk 0:03:14] } 11. O-O-O { [%eval 0.71] [%clk 0:03:01] } 11... Qc7 { [%eval 0.95] [%clk 0:03:15] } 12. Kb1?! { [%eval 0.0] } { Inaccuracy. Bb3 was best. } { [%clk 0:02:57] } 12... b5 { [%eval -0.06] [%clk 0:03:17] } 13. Bb3 { [%eval 0.03] [%clk 0:02:58] } 13... Bd7? { [%eval 1.65] } { Mistake. Rb8 was best. } { [%clk 0:03:18] } 14. f4 { [%eval 1.62] [%clk 0:02:57] } 14... h5?! { [%eval 2.33] } { Inaccuracy. O-O was best. } { [%clk 0:03:09] } 15. f5 { [%eval 1.79] [%clk 0:02:56] } 15... e5 { [%eval 1.69] [%clk 0:03:08] } 16. Nf3 { [%eval 1.96] [%clk 0:02:57] } 16... Bc6 { [%eval 1.84] [%clk 0:03:08] } 17. Ng5 { [%eval 1.85] [%clk 0:02:46] } 17... O-O { [%eval 1.9] [%clk 0:03:09] } 18. h3 { [%eval 1.41] [%clk 0:02:43] } 18... a5 { [%eval 1.42] [%clk 0:03:07] } 19. g4?? { [%eval -0.57] } { Blunder. a4 was best. } { [%clk 0:02:37] } 19... b4 { [%eval -0.4] [%clk 0:03:08] } 20. Nb5?? { [%eval -2.57] } { Blunder. Bxf7+ was best. } { [%clk 0:01:59] } 20... Bxb5 { [%eval -2.57] } 21. Qxb5 { [%eval -2.47] [%clk 0:01:59] } 21... a4 { [%eval -2.5] [%clk 0:03:00] } 22. Bxf7+ { [%eval -2.46] [%clk 0:01:41] } 22... Rxf7 { [%eval -2.47] [%clk 0:03:01] } 23. Nxf7 { [%eval -2.6] [%clk 0:01:41] } 23... Rb8 { [%eval -2.04] [%clk 0:03:00] } 24. Qxa4 { [%eval -2.07] [%clk 0:01:34] } 24... bxa3 { [%eval -1.88] [%clk 0:03:01] } 25. Rd3?! { [%eval -3.0] } { Inaccuracy. Qxa3 was best. } { [%clk 0:01:05] } 25... Rxb2+ { [%eval -3.01] [%clk 0:02:57] } 26. Ka1 { [%eval -2.92] [%clk 0:01:06] } 26... Kxf7 { [%eval -2.92] [%clk 0:02:46] } 27. g5 { [%eval -2.69] [%clk 0:01:06] } 27... Qb7?? { [%eval 0.0] } { Blunder. Nd7 was best. } { [%clk 0:02:20] } 28. Qc4+ { [%eval -0.01] [%clk 0:00:50] } 28... d5 { [%eval 0.0] [%clk 0:02:14] } 29. exd5 { [%eval -0.01] [%clk 0:00:51] } 29... Rb4 { [%eval -0.14] [%clk 0:02:06] } 30. Qa2 { [%eval -0.07] [%clk 0:00:43] } 30... Rb2 { [%eval -0.17] [%clk 0:01:51] } 31. Qc4 { [%eval -0.24] [%clk 0:00:44] } 31... a2?! { [%eval 0.35] } { Inaccuracy. Rb4 was best. } { [%clk 0:00:58] } 32. Rdd1?? { [%eval -1.51] } { Blunder. Rb3 was best. } { [%clk 0:00:23] } 32... Rb4 { [%eval -1.34] [%clk 0:00:47] } 33. Qc6?? { [%eval #-5] } { Checkmate is now unavoidable. Qxa2 was best. } { [%clk 0:00:13] } 33... Qxc6?? { [%eval -1.22] } { Lost forced checkmate sequence. Rb1+ was best. } { [%clk 0:00:35] } 34. dxc6 { [%eval -1.23] [%clk 0:00:14] } 34... Ne4? { [%eval -0.07] } { Mistake. Ne8 was best. } { [%clk 0:00:36] } 35. c7?? { [%eval -2.54] } { Blunder. Rd7 was best. } { [%clk 0:00:05] } 35... Rc4 { [%eval -2.46] [%clk 0:00:37] } 36. Rde1? { [%eval -4.54] } { Mistake. Rd7 was best. } { [%clk 0:00:04] } 36... Nxg5 { [%eval -4.67] [%clk 0:00:32] } 37. Rxe5?! { [%eval -6.89] } { Inaccuracy. c3 was best. } { [%clk 0:00:04] } 37... Bf6 { [%eval -6.91] [%clk 0:00:34] } 38. Re1 { [%eval -6.76] [%clk 0:00:04] } 38... Nf3 { [%eval -6.7] [%clk 0:00:34] } 39. c3 { [%eval -6.9] [%clk 0:00:03] } 39... Nxe5 { [%clk 0:00:34] } 0-1