Event: Round 1: Tahsin Tajwar Zia - Chatterjee Koustav
Date: 2021-09-30
White: Tahsin Tajwar Zia
Black: Chatterjee Koustav
Result: 1-0
ECO: D71
Opening: Neo-Grünfeld Defense: Exchange Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:56] } 1... Nf6 { [%eval 0.27] [%clk 1:30:56] } 2. c4 { [%eval 0.11] [%clk 1:31:19] } 2... g6 { [%eval 0.3] [%clk 1:31:21] } 3. g3 { [%eval 0.13] [%clk 1:31:33] } 3... Bg7 { [%eval 0.5] [%clk 1:31:46] } 4. Bg2 { [%eval 0.39] [%clk 1:31:55] } 4... d5 { [%eval 0.75] [%clk 1:32:11] } 5. cxd5 { [%eval 0.46] [%clk 1:30:50] } 5... Nxd5 { [%eval 0.36] [%clk 1:32:17] } 6. e4 { [%eval 0.29] [%clk 1:31:13] } 6... Nb6 { [%eval 0.43] [%clk 1:32:25] } 7. Ne2 { [%eval 0.38] [%clk 1:31:29] } 7... c5 { [%eval 0.5] [%clk 1:22:50] } 8. d5 { [%eval 0.47] [%clk 1:31:32] } 8... O-O { [%eval 0.41] [%clk 1:23:14] } 9. O-O { [%eval 0.48] [%clk 1:31:55] } 9... e6 { [%eval 0.72] [%clk 1:23:40] } 10. Nec3 { [%eval 0.39] [%clk 1:31:00] } 10... Na6 { [%eval 0.47] [%clk 1:21:18] } 11. a4 { [%eval 0.45] [%clk 1:30:40] } 11... exd5 { [%eval 0.73] [%clk 1:20:40] } 12. exd5 { [%eval 0.59] [%clk 1:31:03] } 12... Bf5 { [%eval 0.92] [%clk 1:20:22] } 13. g4 { [%eval 0.94] [%clk 1:24:24] } 13... Bxb1 { [%eval 1.26] [%clk 1:17:09] } 14. Rxb1 { [%eval 1.65] [%clk 1:24:22] } 14... Nc4 { [%eval 1.52] [%clk 1:01:55] } 15. Ne4 { [%eval 1.28] [%clk 1:21:56] } 15... Nd6 { [%eval 1.27] [%clk 0:55:59] } 16. Bg5 { [%eval 1.25] [%clk 1:14:33] } 16... f6?! { [%eval 1.82] } { Inaccuracy. Qd7 was best. } { [%clk 0:55:44] } 17. Bf4 { [%eval 2.51] [%clk 1:11:20] } 17... Nxe4 { [%eval 2.59] [%clk 0:54:07] } 18. Bxe4 { [%eval 2.13] [%clk 1:11:43] } 18... Qd7 { [%eval 2.68] [%clk 0:54:34] } 19. Bg2 { [%eval 2.12] [%clk 1:09:33] } 19... Rfe8? { [%eval 3.87] } { Mistake. f5 was best. } { [%clk 0:47:20] } 20. d6 { [%eval 4.21] [%clk 1:05:31] } 20... Nb4 { [%eval 4.78] [%clk 0:46:43] } 21. Qf3? { [%eval 2.99] } { Mistake. Rc1 was best. } { [%clk 1:05:17] } 21... Rab8?! { [%eval 4.14] } { Inaccuracy. Rad8 was best. } { [%clk 0:40:11] } 22. Rbe1 { [%eval 3.95] [%clk 1:03:58] } 22... b6 { [%eval 4.26] [%clk 0:38:40] } 23. h3 { [%eval 3.88] [%clk 0:59:56] } 23... Rbd8 { [%eval 4.38] [%clk 0:31:02] } 24. Rxe8+ { [%eval 3.52] [%clk 0:49:15] } 24... Rxe8?! { [%eval 4.46] } { Inaccuracy. Qxe8 was best. } { [%clk 0:31:28] } 25. Rd1 { [%eval 4.87] [%clk 0:49:39] } 25... Bf8 { [%eval 5.1] [%clk 0:26:00] } 26. Bf1 { [%eval 5.54] [%clk 0:46:31] } 26... a6 { [%eval 5.76] [%clk 0:25:18] } 27. Bc4+ { [%eval 5.08] [%clk 0:37:18] } 27... Kg7?! { [%eval 7.76] } { Inaccuracy. Kh8 was best. } { [%clk 0:24:22] } 28. g5 { [%eval 7.69] [%clk 0:34:34] } 28... Qf5 { [%eval 11.98] [%clk 0:19:17] } 29. Qb7+ { [%eval 13.62] [%clk 0:32:20] } 29... Be7 { [%eval 12.62] [%clk 0:18:34] } 30. Re1 { [%eval 10.81] [%clk 0:32:06] } 1-0