Event: Round 4: Ernst, Robert - Wan, Yunguo
Date: 2025-07-30
White: Ernst, Robert
WhiteTitle: FM
WhiteElo: 2334
Black: Wan, Yunguo
BlackTitle: GM
BlackElo: 2501
Result: 1/2-1/2
ECO: D90
Opening: Grünfeld Defense: Three Knights Variation
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:26] } 1... Nf6 { [%eval 0.19] [%clk 1:19:57] } 2. c4 { [%eval 0.18] [%clk 1:30:40] } 2... g6 { [%eval 0.28] [%clk 1:19:49] } 3. Nc3 { [%eval 0.18] [%clk 1:31:00] } 3... d5 { [%eval 0.28] [%clk 1:19:16] } 4. Nf3 { [%eval 0.21] [%clk 1:31:20] } 4... Bg7 { [%eval 0.32] [%clk 1:19:15] } 5. h4 { [%eval 0.18] [%clk 1:31:40] } 5... dxc4 { [%eval 0.35] [%clk 1:11:16] } 6. e4 { [%eval 0.21] [%clk 1:31:44] } 6... c5 { [%eval 0.25] [%clk 1:10:02] } 7. d5 { [%eval 0.05] [%clk 1:32:07] } 7... b5 { [%eval 0.11] [%clk 1:09:56] } 8. h5 { [%eval 0.36] [%clk 1:32:28] } 8... b4? { [%eval 1.57] } { Mistake. Nxh5 was best. } { [%clk 1:01:54] } 9. h6 { [%eval 1.45] [%clk 1:32:00] } 9... Bxh6 { [%eval 1.49] [%clk 0:48:23] } 10. Rxh6?! { [%eval 0.79] } { Inaccuracy. Bxh6 was best. } { [%clk 0:57:27] } 10... bxc3 { [%eval 0.75] [%clk 0:48:40] } 11. Qc2?! { [%eval -0.16] } { Inaccuracy. Rh4 was best. } { [%clk 0:57:51] } 11... Qa5 { [%eval -0.18] [%clk 0:43:58] } 12. bxc3 { [%eval -0.22] [%clk 0:57:43] } 12... Nxe4 { [%eval -0.2] [%clk 0:37:51] } 13. Bxc4 { [%eval -0.73] [%clk 0:55:14] } 13... Nd6 { [%eval -0.7] [%clk 0:36:18] } 14. Nd2 { [%eval -1.12] [%clk 0:53:25] } 14... Nd7 { [%eval -1.06] [%clk 0:33:13] } 15. Be2 { [%eval -0.98] [%clk 0:47:42] } 15... Nf6 { [%eval -0.87] [%clk 0:31:33] } 16. Nb3 { [%eval -0.88] [%clk 0:47:02] } 16... Bf5? { [%eval 0.58] } { Mistake. Qc7 was best. } { [%clk 0:13:22] } 17. Qd2?! { [%eval -0.41] } { Inaccuracy. Nxa5 was best. } { [%clk 0:45:21] } 17... Qa4 { [%eval -0.3] [%clk 0:09:12] } 18. Nxc5 { [%eval -0.74] [%clk 0:39:57] } 18... Qa5 { [%eval -0.78] [%clk 0:09:30] } 19. Qd4 { [%eval -1.0] [%clk 0:40:17] } 19... Rc8?! { [%eval -0.35] } { Inaccuracy. O-O was best. } { [%clk 0:06:23] } 20. Be3 { [%eval -0.24] [%clk 0:40:39] } 20... Nde4? { [%eval 1.02] } { Mistake. O-O was best. } { [%clk 0:05:36] } 21. Nxe4 { [%eval 1.05] [%clk 0:39:44] } 21... Bxe4 { [%eval 1.07] [%clk 0:06:01] } 22. d6 { [%eval 1.2] [%clk 0:39:51] } 22... Qxc3+?? { [%eval 3.7] } { Blunder. e5 was best. } { [%clk 0:01:10] } 23. Qxc3 { [%eval 3.71] [%clk 0:39:26] } 23... Rxc3 { [%eval 3.72] [%clk 0:01:38] } 24. Bd4 { [%eval 3.71] [%clk 0:35:51] } 24... Rc8 { [%eval 3.67] [%clk 0:01:56] } 25. Rd1? { [%eval 2.04] } { Mistake. Rh3 was best. } { [%clk 0:26:46] } 25... Bc6?! { [%eval 3.38] } { Inaccuracy. Bf5 was best. } { [%clk 0:00:57] } 26. Rh3 { [%eval 3.46] [%clk 0:25:37] } 26... Rg8 { [%eval 3.4] [%clk 0:00:47] } 27. dxe7 { [%eval 3.22] [%clk 0:20:55] } 27... Nd5?! { [%eval 4.16] } { Inaccuracy. Nd7 was best. } { [%clk 0:01:03] } 28. Rxh7?? { [%eval 0.86] } { Blunder. Bc5 was best. } { [%clk 0:21:07] } 28... Kxe7?! { [%eval 1.68] } { Inaccuracy. Ba4 was best. } { [%clk 0:00:55] } 29. Bxa7? { [%eval 0.23] } { Mistake. Bc4 was best. } { [%clk 0:20:30] } 29... Rh8? { [%eval 1.74] } { Mistake. Nf4 was best. } { [%clk 0:00:44] } 30. Bc5+ { [%eval 1.69] [%clk 0:20:17] } 30... Ke6 { [%eval 1.51] [%clk 0:01:02] } 31. Rxh8 { [%eval 1.65] [%clk 0:19:33] } 31... Rxh8 { [%eval 1.38] [%clk 0:01:26] } 32. Bf3?! { [%eval 0.47] } { Inaccuracy. Bc4 was best. } { [%clk 0:19:31] } 32... Ra8 { [%eval 0.76] [%clk 0:00:58] } 33. a3 { [%eval 0.52] [%clk 0:14:12] } 33... Ra5 { [%eval 0.71] [%clk 0:01:10] } 34. Rc1?! { [%eval 0.0] } { Inaccuracy. Bf8 was best. } { [%clk 0:14:34] } 34... Nf4 { [%eval 0.01] [%clk 0:00:52] } 35. Kd2 { [%eval 0.03] [%clk 0:07:28] } 35... Bxf3 { [%eval 0.08] [%clk 0:01:10] } 36. gxf3 { [%eval 0.05] [%clk 0:07:54] } 36... Ra8 { [%eval 0.11] [%clk 0:00:53] } 37. Rc4 { [%eval 0.05] [%clk 0:06:14] } 37... Kd5 { [%eval 0.15] [%clk 0:00:43] } 38. Rxf4 { [%eval 0.19] [%clk 0:06:00] } 38... Kxc5 { [%eval 0.13] [%clk 0:01:09] } 39. Rxf7 { [%eval 0.07] [%clk 0:06:24] } 39... Rxa3 { [%eval 0.1] [%clk 0:01:33] } 40. Rf6 { [%eval 0.09] [%clk 0:21:48] } 40... Kd4 { [%eval 0.16] [%clk 0:16:04] } 41. Ke2 { [%eval 0.13] [%clk 0:22:11] } 41... Ke5 { [%eval 0.06] [%clk 0:16:20] } 42. Rxg6 { [%eval 0.05] [%clk 0:22:36] } 42... Ra2+ { [%eval 0.1] [%clk 0:16:32] } 43. Kf1 { [%eval 0.11] [%clk 0:22:59] } 43... Kf5 { [%eval 0.07] [%clk 0:16:46] } 44. Rg4 { [%eval 0.07] [%clk 0:23:18] } 44... Ra1+ { [%eval 0.09] [%clk 0:17:09] } 45. Kg2 { [%eval 0.09] [%clk 0:23:43] } 45... Rb1 { [%eval 0.13] [%clk 0:17:18] } 46. Ra4 { [%eval 0.0] [%clk 0:23:55] } 46... Rc1 { [%eval 0.0] [%clk 0:17:17] } 47. Ra8 { [%eval 0.0] [%clk 0:22:52] } 47... Rb1 { [%eval 0.0] [%clk 0:15:52] } 48. Rf8+ { [%eval 0.03] [%clk 0:23:16] } 48... Kg5 { [%eval 0.0] [%clk 0:15:57] } 49. f4+ { [%eval 0.0] [%clk 0:23:28] } 49... Kg6 { [%eval 0.0] [%clk 0:16:16] } 50. Kg3 { [%eval 0.0] [%clk 0:23:16] } 50... Kg7 { [%eval 0.0] [%clk 0:16:01] } 51. Ra8 { [%eval 0.0] [%clk 0:23:39] } 51... Kf6 { [%eval 0.0] [%clk 0:16:23] } 52. Ra6+ { [%eval 0.0] [%clk 0:24:00] } 52... Kf5 { [%eval 0.0] [%clk 0:16:45] } 53. Ra5+ { [%eval 0.0] [%clk 0:24:26] } 53... Kf6 { [%eval 0.04] [%clk 0:17:11] } 54. f5 { [%eval 0.0] [%clk 0:24:05] } 54... Rb4 { [%eval 0.0] [%clk 0:17:30] } 55. f3 { [%eval 0.0] [%clk 0:24:24] } 55... Rc4 { [%eval 0.0] [%clk 0:17:55] } 1/2-1/2