Event: Round 5: Matviishen, Viktor - Tahay, Alexis
Date: 2025-04-24
White: Matviishen, Viktor
WhiteTitle: GM
WhiteElo: 2550
Black: Tahay, Alexis
BlackTitle: IM
BlackElo: 2397
Result: 1-0
ECO: E49
Opening: Nimzo-Indian Defense: Normal Variation, Botvinnik System
Variant: Standard
TimeControl: 90+30

1. d4 { [%eval 0.17] [%clk 1:29:28] } 1... Nf6 { [%eval 0.19] [%clk 1:30:48] } 2. c4 { [%eval 0.18] [%clk 1:29:43] } 2... e6 { [%eval 0.14] [%clk 1:31:07] } 3. Nc3 { [%eval 0.09] [%clk 1:29:56] } 3... Bb4 { [%eval 0.09] [%clk 1:31:28] } 4. e3 { [%eval 0.11] [%clk 1:30:10] } 4... O-O { [%eval 0.11] [%clk 1:31:47] } 5. Bd3 { [%eval 0.0] [%clk 1:29:49] } 5... d5 { [%eval 0.09] [%clk 1:31:59] } 6. a3 { [%eval 0.04] [%clk 1:29:58] } 6... Bxc3+ { [%eval 0.08] [%clk 1:32:17] } 7. bxc3 { [%eval 0.05] [%clk 1:30:26] } 7... dxc4 { [%eval 0.1] [%clk 1:32:41] } 8. Bxc4 { [%eval 0.15] [%clk 1:30:50] } 8... c5 { [%eval 0.16] [%clk 1:33:06] } 9. Ne2 { [%eval 0.05] [%clk 1:30:48] } 9... Qc7 { [%eval 0.12] [%clk 1:33:02] } 10. Ba2 { [%eval 0.24] [%clk 1:31:06] } 10... b5 { [%eval 0.35] [%clk 1:31:33] } 11. O-O { [%eval 0.22] [%clk 1:31:17] } 11... Bb7 { [%eval 0.26] [%clk 1:27:29] } 12. f3 { [%eval 0.24] [%clk 1:31:10] } 12... Rc8?! { [%eval 0.8] } { Inaccuracy. Bd5 was best. } { [%clk 1:24:10] } 13. e4 { [%eval 0.86] [%clk 1:22:47] } 13... cxd4 { [%eval 0.93] [%clk 1:20:53] } 14. cxd4 { [%eval 0.9] [%clk 1:23:14] } 14... Qc2?! { [%eval 1.52] } { Inaccuracy. Nbd7 was best. } { [%clk 1:17:52] } 15. Qe1 { [%eval 1.36] [%clk 1:23:38] } 15... Nbd7 { [%eval 1.3] [%clk 1:15:01] } 16. Rf2 { [%eval 0.99] [%clk 1:14:57] } 16... Nb6 { [%eval 0.88] [%clk 1:07:30] } 17. Bd2 { [%eval 0.93] [%clk 1:12:17] } 17... Qc6 { [%eval 1.28] [%clk 0:57:53] } 18. d5 { [%eval 1.35] [%clk 1:04:34] } 18... exd5 { [%eval 1.48] [%clk 0:57:51] } 19. e5 { [%eval 1.31] [%clk 1:04:59] } 19... Ne8 { [%eval 1.38] [%clk 0:57:25] } 20. Nd4 { [%eval 1.4] [%clk 1:05:20] } 20... Qd7 { [%eval 1.87] [%clk 0:56:04] } 21. f4 { [%eval 1.79] [%clk 1:05:00] } 21... Nc4 { [%eval 1.68] [%clk 0:51:13] } 22. f5?! { [%eval 0.59] } { Inaccuracy. Bb1 was best. } { [%clk 1:02:51] } 22... Qe7? { [%eval 2.22] } { Mistake. f6 was best. } { [%clk 0:49:33] } 23. Bf4?! { [%eval 1.48] } { Inaccuracy. Bxc4 was best. } { [%clk 0:20:43] } 23... f6 { [%eval 1.71] [%clk 0:45:41] } 24. exf6 { [%eval 1.69] [%clk 0:20:38] } 24... Qxf6 { [%eval 1.29] [%clk 0:40:12] } 25. Nxb5 { [%eval 0.91] [%clk 0:20:04] } 25... a6 { [%eval 0.79] [%clk 0:29:31] } 26. Nc3 { [%eval 0.82] [%clk 0:19:49] } 26... Ned6 { [%eval 1.31] [%clk 0:28:41] } 27. Qe6+ { [%eval 1.3] [%clk 0:12:43] } 27... Qxe6?! { [%eval 1.95] } { Inaccuracy. Kh8 was best. } { [%clk 0:28:37] } 28. fxe6 { [%eval 2.3] [%clk 0:13:13] } 28... d4? { [%eval 4.56] } { Mistake. Nb5 was best. } { [%clk 0:21:22] } 29. e7 { [%eval 4.49] [%clk 0:13:35] } 29... Kh8 { [%eval 4.35] [%clk 0:21:30] } 30. Na4 { [%eval 4.44] [%clk 0:12:54] } 30... g6?! { [%eval 6.29] } { Inaccuracy. Ne4 was best. } { [%clk 0:13:46] } 31. Nb6 { [%eval 6.23] [%clk 0:12:23] } 31... Kg7 { [%eval 6.16] [%clk 0:13:41] } 32. Bxc4 { [%eval 6.34] [%clk 0:10:54] } 32... Nxc4 { [%eval 6.16] [%clk 0:14:09] } 33. e8=Q?! { [%eval 4.46] } { Inaccuracy. Nxc8 was best. } { [%clk 0:11:15] } 33... Rxe8 { [%eval 4.57] [%clk 0:14:36] } 34. Nxc4 { [%eval 4.44] [%clk 0:11:40] } 34... Re6 { [%eval 4.55] [%clk 0:12:13] } 35. Rd1 { [%eval 4.52] [%clk 0:12:00] } 35... Rd8 { [%eval 4.52] [%clk 0:12:32] } 36. Be5+ { [%eval 4.48] [%clk 0:11:18] } 36... Kg8 { [%eval 4.46] [%clk 0:12:58] } 37. Rf6 { [%eval 4.47] [%clk 0:09:26] } 37... Bd5 { [%eval 4.7] [%clk 0:13:26] } 38. Rxe6 { [%eval 4.71] [%clk 0:09:44] } 38... Bxe6 { [%eval 4.68] [%clk 0:13:54] } 39. Nd6 { [%eval 4.57] [%clk 0:09:59] } 1-0