Event: Round 4: Soumma Chakraborty - Rounaq Biswas
Date: 2025-01-29
White: Soumma Chakraborty
WhiteElo: 1916
Black: Rounaq Biswas
BlackElo: 1747
Result: 0-1
ECO: B90
Opening: Sicilian Defense: Najdorf Variation, English Attack
Variant: Standard
TimeControl: 90+30

1. e4 { [%eval 0.18] [%clk 1:30:58] } 1... c5 { [%eval 0.25] [%clk 1:30:54] } 2. Nf3 { [%eval 0.2] [%clk 1:31:25] } 2... d6 { [%eval 0.22] [%clk 1:31:17] } 3. d4 { [%eval 0.22] [%clk 1:31:53] } 3... cxd4 { [%eval 0.19] [%clk 1:31:41] } 4. Nxd4 { [%eval 0.18] [%clk 1:32:21] } 4... Nf6 { [%eval 0.25] [%clk 1:32:01] } 5. Nc3 { [%eval 0.32] [%clk 1:32:49] } 5... a6 { [%eval 0.32] [%clk 1:32:23] } 6. Be3 { [%eval 0.17] [%clk 1:33:16] } 6... e5 { [%eval 0.15] [%clk 1:32:46] } 7. Nb3 { [%eval 0.14] [%clk 1:33:44] } 7... Be6 { [%eval 0.2] [%clk 1:33:06] } 8. f3 { [%eval 0.4] [%clk 1:34:10] } 8... Nbd7 { [%eval 0.59] [%clk 1:33:30] } 9. Qd2 { [%eval 0.44] [%clk 1:34:35] } 9... b5 { [%eval 0.44] [%clk 1:33:53] } 10. g4 { [%eval 0.22] [%clk 1:34:52] } 10... Nb6 { [%eval 0.59] [%clk 1:34:04] } 11. Bxb6?! { [%eval -0.06] } { Inaccuracy. g5 was best. } { [%clk 1:34:42] } 11... Qxb6 { [%eval -0.04] [%clk 1:34:25] } 12. O-O-O { [%eval -0.54] [%clk 1:35:04] } 12... Be7 { [%eval -0.7] [%clk 1:34:37] } 13. h4 { [%eval -0.94] [%clk 1:35:22] } 13... O-O { [%eval -0.55] [%clk 1:29:42] } 14. Kb1 { [%eval -0.96] [%clk 1:34:49] } 14... Rfc8?! { [%eval -0.37] } { Inaccuracy. b4 was best. } { [%clk 1:26:13] } 15. h5?! { [%eval -1.38] } { Inaccuracy. g5 was best. } { [%clk 1:24:34] } 15... b4 { [%eval -0.86] [%clk 1:26:25] } 16. Ne2?! { [%eval -1.86] } { Inaccuracy. Nd5 was best. } { [%clk 1:24:56] } 16... Bxg4?? { [%eval 2.27] } { Blunder. h6 was best. } { [%clk 1:24:15] } 17. fxg4 { [%eval 2.1] [%clk 1:24:05] } 17... Nxe4 { [%eval 1.96] [%clk 1:24:39] } 18. Qd5 { [%eval 1.79] [%clk 1:24:32] } 18... Nf2 { [%eval 1.73] [%clk 1:24:34] } 19. Bg2 { [%eval 1.78] [%clk 1:24:54] } 19... Nxd1 { [%eval 2.34] [%clk 1:24:07] } 20. Rxd1?! { [%eval 1.65] } { Inaccuracy. Qxd1 was best. } { [%clk 1:24:28] } 20... Qe3 { [%eval 1.67] [%clk 1:17:26] } 21. Nec1 { [%eval 1.73] [%clk 1:16:20] } 21... Ra7 { [%eval 1.79] [%clk 1:07:15] } 22. Be4 { [%eval 1.57] [%clk 1:15:26] } 22... a5 { [%eval 1.39] [%clk 1:01:39] } 23. Rf1 { [%eval 1.52] [%clk 1:14:18] } 23... Bg5?! { [%eval 2.75] } { Inaccuracy. Bf8 was best. } { [%clk 0:54:57] } 24. Nxa5 { [%eval 2.82] [%clk 1:12:58] } 24... Qh3 { [%eval 2.88] [%clk 0:52:45] } 25. Bd3 { [%eval 2.78] [%clk 1:01:36] } 25... Bxc1 { [%eval 2.63] [%clk 0:48:22] } 26. Rxc1 { [%eval 2.23] [%clk 0:58:43] } 26... Qxg4 { [%eval 2.26] [%clk 0:48:02] } 27. Rf1? { [%eval 0.66] } { Mistake. Nc6 was best. } { [%clk 0:57:23] } 27... Qe6 { [%eval 0.61] [%clk 0:37:54] } 28. Qb5 { [%eval 0.71] [%clk 0:46:14] } 28... e4?! { [%eval 1.86] } { Inaccuracy. Rca8 was best. } { [%clk 0:24:18] } 29. Be2 { [%clk 0:46:14] } 29... Rca8 30. Nb3 { [%clk 0:46:14] } 30... d5 { [%clk 0:24:18] } 31. Nc1 { [%clk 0:46:14] } 31... Qd6 { [%clk 0:24:18] } 32. Rf5 { [%clk 0:46:14] } 32... Rd8 { [%clk 0:24:18] } 33. Rf1 { [%clk 0:46:14] } 33... Rb8 { [%clk 0:24:18] } 0-1