Event: Round 2: Jacobson, Aaron - Donchenko, Alexander
Date: 2024-04-10
White: Jacobson, Aaron
WhiteTitle: IM
WhiteElo: 2431
Black: Donchenko, Alexander
BlackTitle: GM
BlackElo: 2633
Result: 0-1
ECO: B19
Opening: Caro-Kann Defense: Classical Variation, Lobron System
Variant: Standard

1. e4 { [%eval 0.14] [%clk 1:30:57] } 1... c6 { [%eval 0.24] [%clk 1:30:43] } 2. d4 { [%eval 0.28] [%clk 1:31:21] } 2... d5 { [%eval 0.31] [%clk 1:31:08] } 3. Nc3 { [%eval 0.27] [%clk 1:31:47] } 3... dxe4 { [%eval 0.33] [%clk 1:31:07] } 4. Nxe4 { [%eval 0.21] [%clk 1:32:11] } 4... Bf5 { [%eval 0.18] [%clk 1:31:14] } 5. Ng3 { [%eval 0.35] [%clk 1:32:36] } 5... Bg6 { [%eval 0.26] [%clk 1:31:38] } 6. h4 { [%eval 0.25] [%clk 1:33:02] } 6... h6 { [%eval 0.25] [%clk 1:32:03] } 7. Nf3 { [%eval 0.18] [%clk 1:33:28] } 7... Nd7 { [%eval 0.31] [%clk 1:32:12] } 8. h5 { [%eval 0.38] [%clk 1:33:53] } 8... Bh7 { [%eval 0.32] [%clk 1:32:37] } 9. Bd3 { [%eval 0.22] [%clk 1:34:19] } 9... Bxd3 { [%eval 0.39] [%clk 1:33:01] } 10. Qxd3 { [%eval 0.31] [%clk 1:34:45] } 10... e6 { [%eval 0.25] [%clk 1:33:22] } 11. Bd2 { [%eval 0.3] [%clk 1:35:01] } 11... Ngf6 { [%eval 0.38] [%clk 1:32:50] } 12. O-O-O { [%eval 0.32] [%clk 1:35:18] } 12... Be7 { [%eval 0.31] [%clk 1:31:58] } 13. Ne4 { [%eval 0.35] [%clk 1:35:00] } 13... Rc8 { [%eval 0.89] [%clk 1:22:36] } 14. Nxf6+ { [%eval 0.95] [%clk 1:29:53] } 14... Nxf6 { [%eval 0.95] [%clk 1:20:39] } 15. Ne5 { [%eval 1.01] [%clk 1:24:56] } 15... Qd5 { [%eval 1.32] [%clk 1:15:04] } 16. Kb1 { [%eval 0.99] } 16... O-O { [%eval 0.9] [%clk 1:05:10] } 17. g4 { [%eval 0.91] [%clk 0:44:05] } 17... Bd6 { [%eval 0.95] [%clk 0:52:47] } 18. c4 { [%eval 0.59] [%clk 0:15:00] } 18... Qe4 { [%eval 0.58] [%clk 0:53:01] } 19. Qxe4?! { [%eval 0.0] } { Inaccuracy. f3 was best. } { [%clk 0:15:20] } 19... Nxe4 { [%eval 0.09] [%clk 0:53:25] } 20. Be3 { [%eval -0.01] [%clk 0:15:19] } 20... Rfd8 { [%eval 0.4] [%clk 0:40:21] } 21. f3 { [%eval 0.37] [%clk 0:10:26] } 21... Ng5 { [%eval 0.41] [%clk 0:39:56] } 22. f4 { [%eval 0.48] [%clk 0:09:29] } 22... Ne4 { [%eval 0.43] [%clk 0:40:08] } 23. Rhe1 { [%eval 0.25] [%clk 0:03:43] } 23... b5 { [%eval 0.28] [%clk 0:33:17] } 24. cxb5 { [%eval 0.0] [%clk 0:02:17] } 24... cxb5 { [%eval 0.0] [%clk 0:33:36] } 25. d5 { [%eval 0.0] [%clk 0:02:39] } 25... exd5 { [%eval 0.12] [%clk 0:19:56] } 26. Rxd5 { [%eval 0.05] [%clk 0:01:18] } 26... Nf6 { [%eval 0.14] [%clk 0:20:09] } 27. Rxb5 { [%eval 0.14] [%clk 0:01:22] } 27... a6 { [%eval 0.19] [%clk 0:20:30] } 28. Rb7 { [%eval -0.06] [%clk 0:00:42] } 28... Bxe5 { [%eval -0.03] [%clk 0:20:14] } 29. fxe5 { [%eval 0.0] [%clk 0:01:11] } 29... Nxg4 { [%eval 0.01] [%clk 0:20:38] } 30. Bc1?! { [%eval -0.76] } { Inaccuracy. Bb6 was best. } { [%clk 0:00:52] } 30... Nxe5 { [%eval -0.9] [%clk 0:18:46] } 31. Rg1 { [%eval -1.09] [%clk 0:00:36] } 31... Rc6 { [%eval -1.08] [%clk 0:16:54] } 32. b4?! { [%eval -1.67] } { Inaccuracy. Rf1 was best. } { [%clk 0:00:33] } 32... Nd3 { [%eval -1.69] [%clk 0:13:54] } 33. Be3 { [%eval -1.75] [%clk 0:00:33] } 33... Rd5 { [%eval -1.65] [%clk 0:11:20] } 34. Rh1? { [%eval -3.22] } { Mistake. a4 was best. } { [%clk 0:00:31] } 34... Re5 { [%eval -2.92] [%clk 0:10:22] } 35. Bd4 { [%eval -3.23] [%clk 0:00:38] } 35... Rxh5 { [%eval -3.13] [%clk 0:08:13] } 36. Rd1 { [%eval -2.87] [%clk 0:00:34] } 36... Rh3 { [%eval -2.62] [%clk 0:06:17] } 37. a3 { [%eval -2.46] [%clk 0:00:44] } 37... Rg3 { [%eval -2.28] [%clk 0:04:09] } 38. Rd7 { [%eval -2.51] [%clk 0:00:40] } 38... Nf4 { [%eval -2.44] [%clk 0:02:35] } 39. Rf1 { [%eval -2.9] [%clk 0:00:35] } 39... Ne6 { [%eval -2.87] [%clk 0:00:51] } 40. Bb2 { [%eval -3.0] [%clk 0:30:32] } 40... f6 { [%eval -3.01] [%clk 0:30:40] } 41. Bxf6 { [%eval -3.31] [%clk 0:21:58] } 41... gxf6 { [%eval -3.39] [%clk 0:29:43] } 42. Rxf6 { [%eval -3.29] [%clk 0:22:24] } 42... Rg7 { [%eval -3.17] [%clk 0:29:04] } 43. Rd5 { [%eval -3.52] [%clk 0:22:18] } 43... Kh7 { [%eval -3.42] [%clk 0:29:16] } 44. a4 { [%eval -3.79] [%clk 0:22:07] } 44... Nd4 { [%eval -3.75] [%clk 0:28:11] } 45. Rxc6 { [%eval -3.6] [%clk 0:21:12] } 45... Nxc6 { [%eval -3.56] [%clk 0:28:39] } 46. b5 { [%eval -3.59] [%clk 0:21:35] } 46... axb5 { [%eval -3.21] [%clk 0:28:44] } 47. axb5 { [%eval -3.83] [%clk 0:22:01] } 47... Rb7 { [%eval -3.72] [%clk 0:28:49] } 48. Kc2?? { [%eval -8.99] } { Blunder. Ka1 was best. } { [%clk 0:22:06] } 48... Nb4+ { [%eval -9.0] [%clk 0:29:14] } 0-1