Event: 32nd Tamil Nadu IM Norm Closed Circuit Chess Tournament - Chennai
Site: https://lichess.org/broadcast/tamil-nadu-im-norm-closed-circuit--32nd/round-5/mbBAJrzU/rbQwz9gF
Date: 2025-10-16
White: Otero Acosta, Diasmany
WhiteTitle: IM
WhiteElo: 2326
Black: Siddhanth Poonja
BlackElo: 2214
Result: 0-1
ECO: E25
Opening: Nimzo-Indian Defense: Sämisch Variation
Variant: Standard
TimeControl: 90 minutes with 30 second increment from move 1

1. d4 { [%eval 0.17] [%clk 1:30:37] } 1... Nf6 { [%eval 0.19] [%clk 1:30:47] } 2. c4 { [%eval 0.18] [%clk 1:30:59] } 2... e6 { [%eval 0.14] [%clk 1:31:12] } 3. Nc3 { [%eval 0.09] [%clk 1:31:02] } 3... Bb4 { [%eval 0.15] [%clk 1:31:17] } 4. f3 { [%eval 0.0] [%clk 1:31:02] } 4... d5 { [%eval 0.19] [%clk 1:31:31] } 5. a3 { [%eval 0.13] [%clk 1:31:15] } 5... Bxc3+ { [%eval 0.07] [%clk 1:31:55] } 6. bxc3 { [%eval 0.06] [%clk 1:31:44] } 6... c5 { [%eval 0.06] [%clk 1:32:19] } 7. cxd5 { [%eval 0.09] [%clk 1:30:04] } 7... Nxd5 { [%eval 0.28] [%clk 1:32:36] } 8. Qd3 { [%eval 0.05] [%clk 1:29:12] } 8... cxd4 { [%eval 0.0] [%clk 1:22:38] } 9. cxd4 { [%eval 0.2] [%clk 1:29:35] } 9... Nc6 { [%eval 0.18] [%clk 1:22:58] } 10. e4 { [%eval 0.06] [%clk 1:27:52] } 10... Nb6 { [%eval 0.0] [%clk 1:22:05] } 11. Be3 { [%eval 0.0] [%clk 1:27:42] } 11... O-O { [%eval 0.09] [%clk 1:22:23] } 12. Rd1 { [%eval -0.23] [%clk 1:08:44] } 12... Bd7 { [%eval -0.26] [%clk 1:19:35] } 13. Nh3 { [%eval -0.42] [%clk 0:49:04] } 13... Na5 { [%eval -0.2] [%clk 1:12:37] } 14. Qc3 { [%eval -0.34] [%clk 0:36:14] } 14... Na4 { [%eval -0.34] [%clk 0:53:47] } 15. Qb4 { [%eval -0.32] [%clk 0:36:03] } 15... Rc8 { [%eval 0.12] [%clk 0:50:04] } 16. Bd2 { [%eval 0.07] [%clk 0:30:00] } 16... b6 { [%eval 0.29] [%clk 0:49:03] } 17. Bd3?! { [%eval -0.46] } { Inaccuracy. Nf2 was best. } { [%clk 0:29:49] } 17... e5 { [%eval -0.46] [%clk 0:44:18] } 18. Nf2 { [%eval -0.67] [%clk 0:22:06] } 18... exd4 { [%eval -0.82] [%clk 0:40:47] } 19. O-O?! { [%eval -1.9] } { Inaccuracy. Qxd4 was best. } { [%clk 0:10:53] } 19... Nc5 { [%eval -1.78] [%clk 0:36:15] } 20. Be2? { [%eval -3.63] } { Mistake. Bc2 was best. } { [%clk 0:01:37] } 20... Nc6?? { [%eval -1.56] } { Blunder. Ba4 was best. } { [%clk 0:30:07] } 21. Qb1 { [%eval -1.53] [%clk 0:01:44] } 21... Qe7 { [%eval -1.57] [%clk 0:28:28] } 22. Nd3 { [%eval -2.02] [%clk 0:01:13] } 22... Rfd8 { [%eval -2.05] [%clk 0:26:42] } 23. Nf4 { [%eval -2.08] [%clk 0:01:21] } 23... Be6 { [%eval -2.0] [%clk 0:26:24] } 24. Rfe1 { [%eval -2.28] [%clk 0:01:05] } 24... Ne5 { [%eval -2.21] [%clk 0:22:55] } 25. Bf1 { [%eval -2.7] [%clk 0:00:34] } 25... Na4?! { [%eval -1.98] } { Inaccuracy. Bb3 was best. } { [%clk 0:18:47] } 26. Qb5 { [%eval -2.0] [%clk 0:00:48] } 26... Nc5 { [%eval -1.71] [%clk 0:18:22] } 27. Nd5 { [%eval -1.91] [%clk 0:01:04] } 27... Bxd5 { [%eval -2.01] [%clk 0:15:57] } 28. exd5 { [%eval -2.02] [%clk 0:01:32] } 28... Qd6?! { [%eval -1.0] } { Inaccuracy. Qf6 was best. } { [%clk 0:14:42] } 29. f4 { [%eval -1.21] [%clk 0:01:38] } 29... Ng4 { [%eval -1.21] [%clk 0:14:08] } 30. Bc4?! { [%eval -2.03] } { Inaccuracy. Qc4 was best. } { [%clk 0:01:26] } 30... Ne3 { [%eval -1.75] [%clk 0:08:07] } 31. Bxe3 { [%eval -1.64] [%clk 0:01:45] } 31... dxe3 { [%eval -1.5] [%clk 0:08:36] } 32. Rxe3 { [%eval -1.85] [%clk 0:01:56] } 32... Qxf4 { [%eval -1.76] [%clk 0:08:57] } 33. Rde1 { [%eval -2.28] [%clk 0:02:13] } 33... Qd4?! { [%eval -1.16] } { Inaccuracy. g6 was best. } { [%clk 0:07:22] } 34. Kh1 { [%eval -1.19] [%clk 0:02:23] } 34... g6 { [%eval -1.46] [%clk 0:07:34] } 35. h3?! { [%eval -2.32] } { Inaccuracy. d6 was best. } { [%clk 0:00:34] } 35... Nb7 { [%eval -2.16] [%clk 0:07:04] } 36. Bb3 { [%eval -2.3] [%clk 0:00:44] } 36... Nd6 { [%eval -2.2] [%clk 0:07:08] } 37. Qe2?! { [%eval -3.34] } { Inaccuracy. Qb4 was best. } { [%clk 0:00:40] } 37... Rc3 { [%eval -3.17] [%clk 0:06:44] } 38. Qf3 { [%eval -3.69] [%clk 0:00:37] } 38... Rdc8 { [%eval -3.45] [%clk 0:05:45] } 39. Kh2? { [%eval -5.65] } { Mistake. Qf2 was best. } { [%clk 0:00:38] } 39... Nf5 { [%eval -5.73] [%clk 0:05:47] } 40. Rxc3 { [%eval -5.58] [%clk 0:00:39] } 40... Rxc3 { [%eval -5.62] [%clk 0:05:39] } 41. Qd1?? { [%eval #-3] } { Checkmate is now unavoidable. Qg4 was best. } { [%clk 0:00:48] } 41... Qf2?? { [%eval -5.98] } { Lost forced checkmate sequence. Rxh3+ was best. } { [%clk 0:04:45] } 42. Re8+ { [%eval -5.96] [%clk 0:00:35] } 42... Kg7 { [%eval -5.82] [%clk 0:05:14] } 43. Qa1 { [%eval -5.83] [%clk 0:00:46] } 43... Qd4 { [%eval -5.5] [%clk 0:05:14] } 0-1