Event: Round 4: Humpy Koneru - Yifan Hou
Date: 2023-09-25
White: Humpy Koneru
WhiteTitle: GM
WhiteElo: 2461
Black: Yifan Hou
BlackTitle: GM
BlackElo: 2547
Result: 0-1
ECO: D37
Opening: Queen's Gambit Declined: Three Knights Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 0:25:18] } 1... Nf6 { [%eval 0.28] [%clk 0:25:19] } 2. Nf3 { [%eval 0.12] [%clk 0:25:17] } 2... d5 { [%eval 0.25] [%clk 0:25:17] } 3. c4 { [%eval 0.16] [%clk 0:25:19] } 3... e6 { [%eval 0.17] [%clk 0:25:25] } 4. Nc3 { [%eval 0.0] [%clk 0:25:24] } 4... h6 { [%eval 0.25] [%clk 0:25:33] } 5. e3 { [%eval 0.36] [%clk 0:24:48] } 5... Nbd7 { [%eval 0.39] [%clk 0:25:38] } 6. a3 { [%eval 0.13] [%clk 0:22:51] } 6... a6 { [%eval 0.49] [%clk 0:22:44] } 7. b3 { [%eval 0.01] [%clk 0:17:50] } 7... b6 { [%eval 0.09] [%clk 0:21:35] } 8. Bd3 { [%eval 0.16] [%clk 0:17:05] } 8... Bb7 { [%eval -0.03] [%clk 0:21:43] } 9. O-O { [%eval 0.03] [%clk 0:16:59] } 9... Bd6 { [%eval 0.14] [%clk 0:21:25] } 10. Bb2 { [%eval -0.15] [%clk 0:16:27] } 10... O-O { [%eval -0.08] [%clk 0:21:29] } 11. Qc2 { [%eval -0.11] [%clk 0:14:27] } 11... dxc4 { [%eval 0.12] [%clk 0:16:24] } 12. bxc4 { [%eval 0.08] [%clk 0:14:08] } 12... Bxf3?! { [%eval 0.81] } { Inaccuracy. c5 was best. } { [%clk 0:15:42] } 13. gxf3 { [%eval 0.69] [%clk 0:14:15] } 13... c5 { [%eval 0.95] [%clk 0:15:52] } 14. Ne4? { [%eval -0.18] } { Mistake. d5 was best. } { [%clk 0:10:37] } 14... Nxe4 { [%eval -0.22] [%clk 0:13:36] } 15. Bxe4 { [%eval -0.14] [%clk 0:10:45] } 15... Rc8 { [%eval 0.0] [%clk 0:11:41] } 16. f4 { [%eval -0.39] [%clk 0:06:20] } 16... cxd4 { [%eval -0.39] [%clk 0:11:20] } 17. Rfd1?! { [%eval -1.01] } { Inaccuracy. Bxd4 was best. } { [%clk 0:05:58] } 17... Bc5?! { [%eval -0.21] } { Inaccuracy. e5 was best. } { [%clk 0:07:34] } 18. Bxd4 { [%eval -0.31] [%clk 0:04:24] } 18... Bxd4 { [%eval -0.19] [%clk 0:07:43] } 19. Rxd4 { [%eval -0.22] [%clk 0:04:32] } 19... Qc7 { [%eval -0.23] [%clk 0:05:15] } 20. Rad1 { [%eval -0.23] [%clk 0:04:37] } 20... Nc5 { [%eval -0.12] [%clk 0:05:19] } 21. Bf3 { [%eval -0.16] [%clk 0:04:19] } 21... Rfd8 { [%eval -0.17] [%clk 0:04:12] } 22. Qb2 { [%eval -0.31] [%clk 0:04:04] } 22... Na4 { [%eval -0.37] [%clk 0:03:24] } 23. Qb4 { [%eval -0.27] [%clk 0:04:02] } 23... Rxd4 { [%eval -0.25] [%clk 0:03:12] } 24. Rxd4 { [%eval -0.3] [%clk 0:04:02] } 24... Nc5 { [%eval -0.27] [%clk 0:03:21] } 25. Qb2 { [%eval -0.31] [%clk 0:03:37] } 25... Rd8 { [%eval -0.29] [%clk 0:03:23] } 26. Qd2 { [%eval -0.22] [%clk 0:03:25] } 26... Rxd4 { [%eval 0.0] [%clk 0:03:22] } 27. exd4 { [%eval -0.15] [%clk 0:01:44] } 27... Nd7 { [%eval -0.03] [%clk 0:01:15] } 28. Be2 { [%eval -0.15] [%clk 0:01:52] } 28... Nb8 { [%eval 0.0] [%clk 0:00:46] } 29. Qe3 { [%eval -0.09] [%clk 0:01:27] } 29... Kf8 { [%eval 0.1] [%clk 0:00:20] } 30. Qe4 { [%eval -0.18] [%clk 0:00:53] } 30... g6 { [%eval 0.06] [%clk 0:00:15] } 31. d5 { [%eval -0.13] [%clk 0:00:24] } 31... exd5 { [%eval -0.12] [%clk 0:00:23] } 32. cxd5 { [%eval -0.41] [%clk 0:00:30] } 32... Nd7 { [%eval -0.11] [%clk 0:00:24] } 33. Qb4+ { [%eval -0.37] [%clk 0:00:20] } 33... Qc5 { [%eval -0.37] [%clk 0:00:20] } 34. Bxa6 { [%eval -0.32] [%clk 0:00:12] } 34... Qxb4 { [%eval -0.19] [%clk 0:00:28] } 35. axb4 { [%eval -0.27] [%clk 0:00:21] } 35... Ke7 { [%eval -0.34] [%clk 0:00:37] } 36. f5 { [%eval -0.42] [%clk 0:00:23] } 36... g5 { [%eval -0.42] [%clk 0:00:40] } 37. Kg2 { [%eval -0.56] [%clk 0:00:28] } 37... Nf6 { [%eval -0.3] [%clk 0:00:48] } 38. Bc4 { [%eval -0.1] [%clk 0:00:32] } 38... Kd6 { [%eval -0.08] [%clk 0:00:57] } 39. f4?? { [%eval -2.64] } { Blunder. Kf3 was best. } { [%clk 0:00:26] } 39... Nxd5 { [%eval -2.69] [%clk 0:00:23] } 40. Kf3 { [%eval -2.81] [%clk 0:00:35] } 40... f6 { [%eval -2.73] [%clk 0:00:21] } 41. fxg5 { [%eval -2.83] [%clk 0:00:40] } 41... hxg5 { [%eval -3.14] [%clk 0:00:30] } 42. b5 { [%eval -2.78] [%clk 0:00:40] } 42... Kc5 { [%eval -3.09] [%clk 0:00:23] } 43. Bd3 { [%eval -3.22] [%clk 0:00:26] } 43... Kd4 { [%eval -3.04] [%clk 0:00:18] } 44. Be2 { [%eval -3.04] [%clk 0:00:29] } 44... Ke5 { [%eval -3.11] [%clk 0:00:27] } 45. Bd3 { [%eval -3.0] [%clk 0:00:33] } 45... Kd4 { [%eval -3.39] [%clk 0:00:15] } 46. Be2 { [%eval -3.13] [%clk 0:00:41] } 46... Nc3 { [%eval -3.0] [%clk 0:00:22] } 47. Bf1 { [%eval -3.13] [%clk 0:00:48] } 47... Ne4 { [%eval -2.93] [%clk 0:00:18] } 48. Kg4 { [%eval -2.85] [%clk 0:00:44] } 48... Nd6 { [%eval -2.89] [%clk 0:00:27] } 49. h3 { [%eval -2.83] [%clk 0:00:27] } 49... Ke4 { [%eval -2.65] [%clk 0:00:30] } 50. Bg2+ { [%eval -2.63] [%clk 0:00:25] } 50... Ke5 { [%eval -3.18] [%clk 0:00:39] } 51. h4? { [%eval -5.99] } { Mistake. Bf1 was best. } { [%clk 0:00:28] } 51... gxh4 { [%eval -5.42] [%clk 0:00:33] } 52. Kxh4 { [%eval -6.29] [%clk 0:00:37] } 52... Nxb5 { [%eval -6.66] [%clk 0:00:34] } 53. Kg4 { [%eval -7.21] [%clk 0:00:28] } 53... Nd6 { [%eval -6.95] [%clk 0:00:42] } 54. Bf1 { [%eval -7.5] [%clk 0:00:33] } 54... Nxf5 { [%eval -6.61] [%clk 0:00:47] } 55. Kf3 { [%eval -6.07] [%clk 0:00:40] } 55... Nd4+ { [%eval -5.26] [%clk 0:00:38] } 56. Ke3 { [%eval -4.6] [%clk 0:00:46] } 56... b5 { [%eval -5.66] [%clk 0:00:40] } 0-1