Event: Quantbox Chennai Grandmasters Chess Tournament 2025
Site: https://lichess.org/broadcast/chennai-grand-masters-2025--masters/round-1/QDNuYIFA/Z45h0BOU
White: Keymer, Vincent
WhiteTitle: GM
WhiteElo: 2730
Black: Nihal Sarin
BlackTitle: GM
BlackElo: 2692
Result: 1-0
ECO: D91
Opening: Grünfeld Defense: Three Knights Variation, Petrosian System
Variant: Standard
TimeControl: 90 minutes + 30 seconds per move

1. d4 { [%eval 0.17] [%clk 1:30:57] } 1... Nf6 { [%eval 0.19] [%clk 1:30:01] } 2. c4 { [%eval 0.18] [%clk 1:31:22] } 2... g6 { [%eval 0.28] [%clk 1:30:25] } 3. Nc3 { [%eval 0.18] [%clk 1:30:57] } 3... d5 { [%eval 0.28] [%clk 1:30:43] } 4. Nf3 { [%eval 0.21] [%clk 1:28:53] } 4... Bg7 { [%eval 0.32] [%clk 1:30:54] } 5. Bg5 { [%eval 0.15] [%clk 1:29:18] } 5... c5 { [%eval 0.45] [%clk 1:28:15] } 6. dxc5 { [%eval 0.38] [%clk 1:21:06] } 6... Be6 { [%eval 0.45] [%clk 1:28:35] } 7. Nd4 { [%eval 0.36] [%clk 1:16:42] } 7... Nc6 { [%eval 0.34] [%clk 1:26:12] } 8. Nxe6 { [%eval 0.25] [%clk 1:08:13] } 8... fxe6 { [%eval 0.28] [%clk 1:26:19] } 9. cxd5 { [%eval 0.25] [%clk 1:04:54] } 9... Nxd5 { [%eval 0.3] [%clk 1:26:23] } 10. Nxd5 { [%eval 0.39] [%clk 1:01:23] } 10... exd5 { [%eval 0.4] [%clk 1:26:44] } 11. Qd2 { [%eval 0.23] [%clk 0:49:13] } 11... Rf8 { [%eval 0.75] [%clk 1:18:49] } 12. Rd1 { [%eval 0.57] [%clk 0:41:31] } 12... Bd4 { [%eval 0.9] [%clk 1:05:22] } 13. e3 { [%eval 0.83] [%clk 0:41:53] } 13... Bxc5 { [%eval 0.94] [%clk 1:05:46] } 14. a3 { [%eval 0.91] [%clk 0:42:10] } 14... d4 { [%eval 1.08] [%clk 0:52:12] } 15. b4 { [%eval 0.57] [%clk 0:38:06] } 15... Bb6 { [%eval 0.68] [%clk 0:52:08] } 16. Bh6 { [%eval 0.78] [%clk 0:34:01] } 16... dxe3?! { [%eval 1.89] } { Inaccuracy. Qd5 was best. } { [%clk 0:35:14] } 17. Qxd8+ { [%eval 1.59] [%clk 0:34:17] } 17... Nxd8 { [%eval 1.91] [%clk 0:35:37] } 18. Bb5+ { [%eval 1.98] [%clk 0:30:54] } 18... Nc6 { [%eval 1.85] [%clk 0:36:00] } 19. Bxc6+ { [%eval 1.96] [%clk 0:31:12] } 19... bxc6 { [%eval 1.69] [%clk 0:36:23] } 20. Bxf8 { [%eval 2.01] [%clk 0:31:40] } 20... exf2+ { [%eval 1.92] [%clk 0:36:31] } 21. Ke2 { [%eval 1.98] [%clk 0:32:07] } 21... Kxf8 { [%eval 1.93] [%clk 0:36:53] } 22. Rc1 { [%eval 1.58] [%clk 0:32:27] } 22... Kg7 { [%eval 1.99] [%clk 0:25:02] } 23. Rxc6 { [%eval 1.93] [%clk 0:29:20] } 23... Rf8 { [%eval 2.43] [%clk 0:19:47] } 24. a4 { [%eval 2.37] [%clk 0:27:39] } 24... Bd4 { [%eval 2.31] [%clk 0:10:52] } 25. Rb1 { [%eval 2.61] [%clk 0:25:53] } 25... Rb8 { [%eval 2.7] [%clk 0:04:50] } 26. Rc4 { [%eval 2.91] [%clk 0:24:27] } 26... e5 { [%eval 2.66] [%clk 0:04:45] } 27. Rc7+ { [%eval 2.5] [%clk 0:23:48] } 27... Kh6 { [%eval 3.13] [%clk 0:00:33] } 28. h4?? { [%eval 0.25] } { Blunder. b5 was best. } { [%clk 0:21:16] } 28... Kh5? { [%eval 1.61] } { Mistake. Rf8 was best. } { [%clk 0:00:53] } 29. Rxh7+ { [%eval 1.52] [%clk 0:20:29] } 29... Kg4 { [%eval 1.51] [%clk 0:01:22] } 30. Rg7 { [%eval 1.57] [%clk 0:20:03] } 30... Rb6?? { [%eval 3.64] } { Blunder. Kf5 was best. } { [%clk 0:00:43] } 31. b5?! { [%eval 2.58] } { Inaccuracy. Rxa7 was best. } { [%clk 0:17:38] } 31... Rd6 { [%eval 3.23] [%clk 0:00:33] } 32. a5 { [%eval 3.28] [%clk 0:17:24] } 32... Kxh4 { [%eval 3.38] [%clk 0:00:33] } 33. Rc7?! { [%eval 2.22] } { Inaccuracy. Rf7 was best. } { [%clk 0:08:38] } 33... g5 { [%eval 2.28] [%clk 0:00:45] } 34. Rc6 { [%eval 2.31] [%clk 0:07:14] } 34... Rd7 { [%eval 2.13] [%clk 0:01:06] } 35. b6 { [%eval 2.28] [%clk 0:05:55] } 35... axb6 { [%eval 2.32] [%clk 0:01:27] } 36. axb6 { [%eval 2.25] [%clk 0:06:24] } 36... Rb7 { [%eval 2.32] [%clk 0:01:49] } 37. Rb3 { [%eval 2.13] [%clk 0:04:04] } 37... g4 { [%eval 2.28] [%clk 0:00:56] } 38. Rd6?? { [%eval 0.0] } { Blunder. g3+ was best. } { [%clk 0:02:10] } 38... Bc5?? { [%eval 2.28] } { Blunder. g3 was best. } { [%clk 0:00:42] } 39. Rg6 { [%eval 2.1] [%clk 0:01:27] } 39... Kh5 { [%eval 2.28] [%clk 0:00:52] } 40. Rc6 { [%eval 2.32] [%clk 0:00:37] } 40... Bd4 { [%eval 2.26] [%clk 0:01:17] } 41. Rd6?? { [%eval 0.0] } { Blunder. g3 was best. } { [%clk 0:00:40] } 41... Bc5?? { [%eval 2.26] } { Blunder. g3 was best. } { [%clk 0:01:10] } 42. Re6 { [%eval 2.21] [%clk 0:00:43] } 42... Bd4 { [%eval 2.38] [%clk 0:01:23] } 43. g3 { [%eval 2.27] [%clk 0:00:34] } 43... Kg5 { [%eval 2.18] [%clk 0:00:43] } 44. Rd6 { [%eval 2.21] [%clk 0:00:49] } 44... Bc5 { [%eval 2.17] [%clk 0:00:35] } 45. Rc6 { [%eval 2.19] [%clk 0:00:39] } 45... Bd4 { [%eval 2.11] [%clk 0:01:00] } 46. Rb1 { [%eval 1.81] [%clk 0:00:33] } 46... Kf5 { [%eval 2.23] [%clk 0:01:14] } 47. Kf1 { [%eval 1.75] [%clk 0:00:37] } 47... Kg5 { [%eval 2.16] [%clk 0:00:50] } 48. Kg2 { [%eval 1.96] [%clk 0:00:42] } 48... Kf5 { [%eval 1.75] [%clk 0:01:05] } 49. Rb5? { [%eval 0.37] } { Mistake. Kf1 was best. } { [%clk 0:00:41] } 49... Rh7?? { [%eval 4.99] } { Blunder. Ke4 was best. } { [%clk 0:00:33] } 50. Rc7 { [%eval 4.85] [%clk 0:00:45] } 50... Rh8?! { [%eval 6.3] } { Inaccuracy. f1=R was best. } { [%clk 0:00:32] } 51. b7 { [%eval 5.88] [%clk 0:00:37] } 51... Ba7 { [%eval 6.41] [%clk 0:00:31] } 52. Rc8 { [%eval 5.92] [%clk 0:00:46] } 1-0