Event: Runde 5: Knaak, Rainer - Krastev, Alexander
Date: 2024-03-06
White: Knaak, Rainer
WhiteTitle: GM
WhiteElo: 2450
Black: Krastev, Alexander
BlackTitle: IM
BlackElo: 2457
Result: 0-1
ECO: E43
Opening: Nimzo-Indian Defense: St. Petersburg Variation
Variant: Standard

1. d4 { [%eval 0.15] [%clk 1:40:56] } 1... Nf6 { [%eval 0.16] [%clk 1:40:55] } 2. c4 { [%eval 0.16] [%clk 1:41:17] } 2... e6 { [%eval 0.21] [%clk 1:41:21] } 3. Nc3 { [%eval 0.05] [%clk 1:41:28] } 3... Bb4 { [%eval 0.17] [%clk 1:41:45] } 4. e3 { [%eval 0.0] [%clk 1:41:20] } 4... b6 { [%eval 0.48] [%clk 1:42:10] } 5. Bd3 { [%eval 0.27] [%clk 1:41:12] } 5... Bb7 { [%eval 0.35] [%clk 1:42:14] } 6. Nf3 { [%eval 0.15] [%clk 1:41:33] } 6... Bxc3+ { [%eval 0.47] [%clk 1:42:01] } 7. bxc3 { [%eval 0.31] [%clk 1:41:58] } 7... d6 { [%eval 0.51] [%clk 1:42:22] } 8. O-O { [%eval 0.38] [%clk 1:21:34] } 8... Nbd7 { [%eval 0.86] [%clk 1:35:08] } 9. Nd2 { [%eval 0.8] [%clk 1:21:11] } 9... e5 { [%eval 0.89] [%clk 1:34:45] } 10. e4 { [%eval 0.75] [%clk 1:19:29] } 10... Qe7 { [%eval 0.9] [%clk 1:35:00] } 11. f4 { [%eval 0.48] [%clk 1:18:53] } 11... c5 { [%eval 0.89] [%clk 1:30:53] } 12. dxe5?? { [%eval -0.82] } { Blunder. fxe5 was best. } { [%clk 0:53:05] } 12... dxe5 { [%eval -0.68] [%clk 1:31:04] } 13. f5 { [%eval -0.82] [%clk 0:53:31] } 13... O-O-O { [%eval -0.92] [%clk 1:27:52] } 14. Qf3 { [%eval -0.62] [%clk 0:52:37] } 14... Ne8 { [%eval -0.8] [%clk 1:09:35] } 15. Re1 { [%eval -0.98] [%clk 0:49:46] } 15... Ndf6 { [%eval -0.69] [%clk 1:06:40] } 16. Nf1 { [%eval -0.7] [%clk 0:49:45] } 16... h6 { [%eval -0.57] [%clk 1:07:00] } 17. a4 { [%eval -0.51] [%clk 0:40:24] } 17... a5 { [%eval -0.51] [%clk 0:58:57] } 18. g4?? { [%eval -2.53] } { Blunder. Rb1 was best. } { [%clk 0:40:37] } 18... Nxg4 { [%eval -2.35] [%clk 0:51:37] } 19. Rb1 { [%eval -2.31] [%clk 0:26:51] } 19... Kc7 { [%eval -2.6] [%clk 0:51:39] } 20. Qxg4 { [%eval -3.16] [%clk 0:24:54] } 20... Rxd3 { [%eval -3.19] [%clk 0:51:59] } 21. Qe2 { [%eval -3.07] [%clk 0:25:00] } 21... Rd6 { [%eval -2.74] [%clk 0:51:56] } 22. Ne3 { [%eval -2.67] [%clk 0:24:10] } 22... Bxe4 { [%eval -2.81] [%clk 0:27:03] } 23. Nd5+ { [%eval -2.62] [%clk 0:24:28] } 23... Rxd5 { [%eval -2.52] [%clk 0:27:21] } 24. Qxe4 { [%eval -2.05] [%clk 0:18:33] } 24... Nf6 { [%eval -1.97] [%clk 0:26:48] } 25. Qg2 { [%eval -2.61] [%clk 0:15:01] } 25... Rd6 { [%eval -2.59] [%clk 0:25:33] } 26. Bf4 { [%eval -2.59] [%clk 0:15:14] } 26... Nd7 { [%eval -2.49] [%clk 0:25:57] } 27. Bg3?! { [%eval -3.27] } { Inaccuracy. Qxg7 was best. } { [%clk 0:11:34] } 27... Rd8 { [%eval -3.36] [%clk 0:21:03] } 28. Qb2 { [%eval -3.79] [%clk 0:08:10] } 28... f6 { [%eval -3.49] [%clk 0:15:50] } 29. Bf2 { [%eval -4.09] [%clk 0:07:40] } 29... g6 { [%eval -4.0] [%clk 0:14:27] } 30. Qb5 { [%eval -5.0] [%clk 0:05:52] } 30... gxf5 { [%eval -4.94] [%clk 0:14:08] } 31. Qa6 { [%eval -5.01] [%clk 0:03:16] } 31... Rb8 { [%eval -4.65] [%clk 0:12:25] } 32. Red1 { [%eval -5.03] [%clk 0:02:11] } 32... Qe6 { [%eval -4.46] [%clk 0:10:10] } 33. Qa7+ { [%eval -5.03] [%clk 0:01:43] } 33... Rb7 { [%eval -5.08] [%clk 0:10:20] } 34. Qa8 { [%eval -4.91] [%clk 0:02:07] } 34... f4 { [%eval -4.75] [%clk 0:10:08] } 35. Rxd6 { [%eval -5.16] [%clk 0:02:14] } 35... Qxd6 { [%eval -4.92] [%clk 0:10:33] } 0-1