Event: Round 5: Sosa, Tomas - Karthikeyan, Murali
Date: 2025-04-24
White: Sosa, Tomas
WhiteTitle: GM
WhiteElo: 2498
Black: Karthikeyan, Murali
BlackTitle: GM
BlackElo: 2651
Result: 1-0
ECO: A01
Opening: Nimzo-Larsen Attack: Modern Variation
Variant: Standard
TimeControl: 90+30

1. b3 { [%eval 0.0] [%clk 1:30:51] } 1... e5 { [%eval 0.0] [%clk 1:24:23] } 2. Bb2 { [%eval 0.0] [%clk 1:30:56] } 2... Nc6 { [%eval 0.0] [%clk 1:24:31] } 3. c4 { [%eval -0.12] [%clk 1:31:07] } 3... g6 { [%eval 0.15] [%clk 1:09:40] } 4. g3 { [%eval 0.02] [%clk 1:30:32] } 4... Bg7 { [%eval 0.21] [%clk 1:09:52] } 5. Bg2 { [%eval 0.14] [%clk 1:30:54] } 5... Nge7 { [%eval 0.14] [%clk 1:09:51] } 6. Nc3 { [%eval 0.16] [%clk 1:30:14] } 6... d6 { [%eval 0.2] [%clk 1:08:37] } 7. d3 { [%eval 0.14] [%clk 1:28:41] } 7... Be6 { [%eval 0.22] [%clk 1:04:18] } 8. Nd5 { [%eval -0.07] [%clk 1:25:13] } 8... O-O { [%eval -0.08] [%clk 1:01:30] } 9. Qd2 { [%eval -0.17] [%clk 1:24:53] } 9... a5 { [%eval -0.07] [%clk 0:59:09] } 10. e4 { [%eval -0.2] [%clk 1:04:56] } 10... Nd4 { [%eval -0.17] [%clk 0:50:19] } 11. Bxd4 { [%eval -0.24] [%clk 0:54:39] } 11... exd4 { [%eval -0.31] [%clk 0:49:59] } 12. Ne2 { [%eval -0.34] [%clk 0:55:02] } 12... c6 { [%eval -0.05] [%clk 0:41:14] } 13. Ndf4 { [%eval -0.18] [%clk 0:53:47] } 13... Bd7 { [%eval -0.25] [%clk 0:40:25] } 14. h4 { [%eval -0.56] [%clk 0:53:20] } 14... b5?! { [%eval 0.11] } { Inaccuracy. c5 was best. } { [%clk 0:36:37] } 15. cxb5 { [%eval 0.06] [%clk 0:47:55] } 15... cxb5 { [%eval 0.18] [%clk 0:36:31] } 16. h5 { [%eval -0.27] [%clk 0:48:10] } 16... Rc8 { [%eval -0.18] [%clk 0:34:01] } 17. hxg6 { [%eval -0.35] [%clk 0:43:25] } 17... hxg6 { [%eval -0.26] [%clk 0:33:32] } 18. O-O { [%eval -0.22] [%clk 0:43:21] } 18... b4 { [%eval -0.21] [%clk 0:28:26] } 19. Bh3 { [%eval -0.29] [%clk 0:38:34] } 19... Bxh3 { [%eval -0.24] [%clk 0:27:37] } 20. Nxh3 { [%eval -0.26] [%clk 0:38:58] } 20... d5 { [%eval -0.28] [%clk 0:28:00] } 21. Rac1 { [%eval -0.72] [%clk 0:32:00] } 21... Rc3 { [%eval -0.28] [%clk 0:26:10] } 22. Nxc3 { [%eval -0.39] [%clk 0:30:04] } 22... dxc3 { [%eval 0.11] [%clk 0:25:48] } 23. Qg5 { [%eval 0.08] [%clk 0:29:19] } 23... Nc6 { [%eval 0.16] [%clk 0:24:30] } 24. Qxd5 { [%eval 0.09] [%clk 0:23:23] } 24... Qxd5 { [%eval 0.51] [%clk 0:22:33] } 25. exd5 { [%eval 0.39] [%clk 0:23:51] } 25... Nd4 { [%eval 0.41] [%clk 0:22:43] } 26. Kg2 { [%eval 0.38] [%clk 0:23:44] } 26... Rd8 { [%eval 0.34] [%clk 0:20:24] } 27. Rfe1 { [%eval 0.0] [%clk 0:23:15] } 27... Bh6 { [%eval 0.22] [%clk 0:19:30] } 28. f4 { [%eval 0.25] [%clk 0:23:30] } 28... Kf8 { [%eval 0.05] [%clk 0:16:39] } 29. Ng1 { [%eval 0.0] [%clk 0:19:08] } 29... Rxd5 { [%eval 0.0] [%clk 0:09:33] } 30. Nf3 { [%eval 0.0] [%clk 0:19:20] } 30... Ne6? { [%eval 1.42] } { Mistake. Nxf3 was best. } { [%clk 0:07:24] } 31. d4 { [%eval 1.52] [%clk 0:14:25] } 31... Bg7 { [%eval 1.54] [%clk 0:04:57] } 32. Rcd1 { [%eval 1.41] [%clk 0:11:54] } 32... Bf6 { [%eval 1.72] [%clk 0:01:42] } 33. Kf2 { [%eval 1.65] [%clk 0:08:52] } 33... g5 { [%eval 2.26] [%clk 0:01:29] } 34. Ke3 { [%eval 2.27] [%clk 0:08:01] } 34... a4 { [%eval 2.4] [%clk 0:00:37] } 35. Ne5?! { [%eval 1.43] } { Inaccuracy. bxa4 was best. } { [%clk 0:03:15] } 35... gxf4+ { [%eval 1.74] [%clk 0:00:33] } 36. gxf4 { [%eval 1.88] [%clk 0:03:44] } 36... axb3 { [%eval 1.69] [%clk 0:00:32] } 37. axb3 { [%eval 1.71] [%clk 0:04:13] } 37... Rd6 { [%eval 1.58] [%clk 0:00:34] } 38. Rg1 { [%eval 1.4] [%clk 0:02:28] } 38... Bd8?! { [%eval 2.45] } { Inaccuracy. Bg7 was best. } { [%clk 0:00:42] } 39. Nc4 { [%eval 2.43] [%clk 0:02:36] } 39... Rd5 { [%eval 2.74] [%clk 0:00:47] } 40. Ke4 { [%eval 2.69] [%clk 0:02:31] } 40... Rb5 { [%eval 3.0] [%clk 0:00:59] } 41. Ra1? { [%eval 1.64] } { Mistake. Ne3 was best. } { [%clk 0:01:27] } 41... f5+ { [%eval 1.52] [%clk 0:00:44] } 42. Ke3 { [%eval 1.69] [%clk 0:01:54] } 42... Bc7? { [%eval 3.34] } { Mistake. Rd5 was best. } { [%clk 0:00:35] } 43. Ra8+ { [%eval 3.83] [%clk 0:01:54] } 43... Rb8 { [%eval 3.76] [%clk 0:00:32] } 44. Rxb8+ { [%eval 3.67] [%clk 0:01:48] } 44... Bxb8 { [%eval 3.59] [%clk 0:01:01] } 45. Ne5 { [%eval 3.31] [%clk 0:01:37] } 45... Bc7 { [%eval 3.84] [%clk 0:00:32] } 46. Rf1 { [%eval 3.82] [%clk 0:01:24] } 46... Ke8 { [%eval 4.11] [%clk 0:00:37] } 47. Kd3 { [%eval 3.99] [%clk 0:01:20] } 47... Bb6 { [%eval 4.22] [%clk 0:01:02] } 48. Nc6 { [%eval 4.44] [%clk 0:01:37] } 48... Kd7 { [%eval 4.41] [%clk 0:00:39] } 49. Nxb4 { [%eval 4.35] [%clk 0:01:19] } 49... Bxd4 { [%eval 4.21] [%clk 0:00:56] } 50. Nd5 { [%eval 4.04] [%clk 0:01:31] } 1-0