Event: Round 4: Jacobson, Brandon - Ernst, Robert
Date: 2025-04-19
White: Jacobson, Brandon
WhiteTitle: GM
WhiteElo: 2570
Black: Ernst, Robert
BlackTitle: FM
BlackElo: 2378
Result: 1-0
ECO: A11
Opening: English Opening: Caro-Kann Defensive System
Variant: Standard
TimeControl: 90+30

1. c4 { [%eval 0.12] [%clk 1:30:29] } 1... c6 { [%eval 0.23] [%clk 1:30:41] } 2. Nf3 { [%eval 0.21] [%clk 1:30:53] } 2... d5 { [%eval 0.32] [%clk 1:31:02] } 3. e3 { [%eval 0.21] [%clk 1:30:59] } 3... Nf6 { [%eval 0.3] [%clk 1:31:22] } 4. Qc2 { [%eval 0.01] [%clk 1:27:51] } 4... g6 { [%eval 0.18] [%clk 1:26:52] } 5. b3 { [%eval -0.01] [%clk 1:27:39] } 5... Bg7 { [%eval 0.0] [%clk 1:27:07] } 6. Bb2 { [%eval 0.1] [%clk 1:28:04] } 6... O-O { [%eval 0.06] [%clk 1:26:27] } 7. Be2 { [%eval 0.15] [%clk 1:28:28] } 7... Bg4 { [%eval 0.19] [%clk 1:19:00] } 8. d3 { [%eval 0.16] [%clk 1:24:47] } 8... Nbd7 { [%eval 0.24] [%clk 1:15:48] } 9. Nbd2 { [%eval 0.26] [%clk 1:19:29] } 9... Re8 { [%eval 0.26] [%clk 1:12:53] } 10. h3 { [%eval 0.19] [%clk 1:15:41] } 10... Bxf3 { [%eval 0.3] [%clk 1:13:13] } 11. Nxf3 { [%eval 0.29] [%clk 1:15:25] } 11... e5 { [%eval 0.29] [%clk 1:12:29] } 12. cxd5 { [%eval 0.28] [%clk 1:13:44] } 12... cxd5 { [%eval 0.3] [%clk 1:03:26] } 13. O-O { [%eval 0.21] [%clk 1:13:00] } 13... Bf8 { [%eval 0.29] [%clk 0:59:52] } 14. Rfc1 { [%eval 0.25] [%clk 1:09:17] } 14... Bd6 { [%eval 0.26] [%clk 1:00:10] } 15. Bf1 { [%eval 0.19] [%clk 1:08:08] } 15... Qe7 { [%eval 0.21] [%clk 0:54:30] } 16. a3 { [%eval 0.2] [%clk 1:06:56] } 16... Rad8 { [%eval 0.49] [%clk 0:53:23] } 17. b4 { [%eval 0.51] [%clk 1:02:25] } 17... a6 { [%eval 0.48] [%clk 0:42:21] } 18. Nd2 { [%eval 0.4] [%clk 1:00:01] } 18... Bb8 { [%eval 0.4] [%clk 0:41:32] } 19. g3 { [%eval 0.22] [%clk 0:55:43] } 19... h5 { [%eval 0.16] [%clk 0:40:21] } 20. Bg2 { [%eval 0.28] [%clk 0:54:28] } 20... Qd6 { [%eval 0.43] [%clk 0:36:57] } 21. Kf1 { [%eval 0.33] [%clk 0:46:39] } 21... Nf8 { [%eval 0.4] [%clk 0:34:20] } 22. Qb3 { [%eval -0.09] [%clk 0:42:56] } 22... Qd7?! { [%eval 0.52] } { Inaccuracy. h4 was best. } { [%clk 0:33:48] } 23. Nf3 { [%eval 0.5] [%clk 0:40:11] } 23... N8h7 { [%eval 0.41] [%clk 0:31:51] } 24. Kg1 { [%eval 0.49] [%clk 0:39:26] } 24... Qd6 { [%eval 0.74] [%clk 0:30:40] } 25. b5 { [%eval 0.46] [%clk 0:37:27] } 25... e4 { [%eval 0.55] [%clk 0:28:15] } 26. dxe4 { [%eval 0.42] [%clk 0:35:24] } 26... dxe4 { [%eval 0.47] [%clk 0:28:44] } 27. Rd1 { [%eval 0.54] [%clk 0:30:19] } 27... Qb6 { [%eval 0.55] [%clk 0:25:01] } 28. Rxd8 { [%eval 0.64] [%clk 0:21:36] } 28... Rxd8 { [%eval 0.84] [%clk 0:21:47] } 29. Bd4?! { [%eval 0.19] } { Inaccuracy. Nd4 was best. } { [%clk 0:20:12] } 29... Qd6?? { [%eval 2.14] } { Blunder. Qxb5 was best. } { [%clk 0:18:28] } 30. Ne5 { [%eval 2.08] [%clk 0:17:48] } 30... Qd5?! { [%eval 2.81] } { Inaccuracy. Nd5 was best. } { [%clk 0:17:28] } 31. Qxd5 { [%eval 2.65] [%clk 0:18:14] } 31... Rxd5 { [%eval 2.79] [%clk 0:17:57] } 32. bxa6 { [%eval 2.98] [%clk 0:18:37] } 32... bxa6 { [%eval 2.86] [%clk 0:18:04] } 33. Nc6 { [%eval 2.99] [%clk 0:18:38] } 33... Bd6 { [%eval 2.86] [%clk 0:18:00] } 34. Bf1 { [%eval 2.72] [%clk 0:15:18] } 34... a5 { [%eval 2.85] [%clk 0:16:00] } 35. a4 { [%eval 2.91] [%clk 0:15:25] } 35... Bc5 { [%eval 3.11] [%clk 0:14:53] } 36. Rc1 { [%eval 2.94] [%clk 0:15:18] } 36... Ba3?! { [%eval 3.93] } { Inaccuracy. Nd7 was best. } { [%clk 0:13:34] } 37. Rb1 { [%eval 4.02] [%clk 0:15:09] } 37... Rf5 { [%eval 4.47] [%clk 0:11:35] } 38. Rb8+ { [%eval 4.5] [%clk 0:08:18] } 38... Kg7 { [%eval 4.57] [%clk 0:11:59] } 39. h4 { [%eval 4.43] [%clk 0:08:27] } 39... Kh6 { [%eval 4.7] [%clk 0:09:09] } 40. Rb5 { [%eval 4.6] [%clk 0:08:12] } 40... Rxb5 { [%eval 4.71] [%clk 0:09:14] } 41. axb5 { [%eval 4.07] [%clk 0:05:59] } 41... a4?! { [%eval 5.29] } { Inaccuracy. Nd7 was best. } { [%clk 0:09:39] } 42. b6 { [%eval 5.16] [%clk 0:06:24] } 42... Bd6?! { [%eval 6.74] } { Inaccuracy. Nd7 was best. } { [%clk 0:10:05] } 43. b7 { [%eval 6.74] [%clk 0:05:02] } 43... Nd7 { [%eval 7.0] [%clk 0:10:30] } 44. Bb5?! { [%eval 4.44] } { Inaccuracy. Nd8 was best. } { [%clk 0:05:28] } 44... a3?! { [%eval 7.13] } { Inaccuracy. Bc7 was best. } { [%clk 0:10:22] } 45. Nd8 { [%eval 7.07] [%clk 0:05:52] } 45... Ne5? { [%eval #14] } { Checkmate is now unavoidable. Nhf8 was best. } { [%clk 0:10:46] } 46. Bxe5 { [%eval #13] [%clk 0:06:12] } 46... Bxe5 { [%eval #13] [%clk 0:11:10] } 47. Nxf7+ { [%eval #12] [%clk 0:06:38] } 47... Kg7 { [%eval #13] [%clk 0:11:33] } 48. Nxe5 { [%eval #12] [%clk 0:07:06] } 48... a2 { [%eval #12] [%clk 0:11:57] } 49. b8=Q { [%eval #11] [%clk 0:07:31] } 49... a1=Q+ { [%eval #11] [%clk 0:12:21] } 50. Kg2 { [%eval #11] [%clk 0:00:51] } 1-0