Event: Round 3: Aaron Jacobson - Mark Heimann
Date: 2023-08-03
White: Aaron Jacobson
WhiteTitle: FM
Black: Mark Heimann
BlackTitle: IM
Result: 1/2-1/2
ECO: D37
Opening: Queen's Gambit Declined: Three Knights, Vienna Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:57] } 1... Nf6 { [%eval 0.28] [%clk 1:30:55] } 2. c4 { [%eval 0.16] [%clk 1:31:23] } 2... e6 { [%eval 0.23] [%clk 1:31:20] } 3. Nf3 { [%eval 0.0] [%clk 1:31:48] } 3... d5 { [%eval 0.17] [%clk 1:31:44] } 4. Nc3 { [%eval 0.0] [%clk 1:32:14] } 4... dxc4 { [%eval 0.17] [%clk 1:32:03] } 5. e4 { [%eval 0.34] [%clk 1:31:49] } 5... b5 { [%eval 0.35] [%clk 1:32:17] } 6. e5 { [%eval 0.37] [%clk 1:31:17] } 6... Nd5 { [%eval 0.51] [%clk 1:32:43] } 7. Nxb5 { [%eval 0.46] [%clk 1:31:43] } 7... Nb6 { [%eval 0.29] [%clk 1:33:08] } 8. Nc3 { [%eval 0.42] [%clk 1:30:32] } 8... Nc6 { [%eval 0.47] [%clk 1:33:29] } 9. Be2 { [%eval 0.45] [%clk 1:29:17] } 9... Bb7 { [%eval 0.42] [%clk 1:33:24] } 10. Be3 { [%eval 0.48] [%clk 1:27:11] } 10... Be7 { [%eval 0.37] [%clk 1:31:23] } 11. O-O { [%eval 0.55] [%clk 1:27:28] } 11... O-O { [%eval 0.45] [%clk 1:31:23] } 12. a3 { [%eval 0.26] [%clk 1:26:51] } 12... Na5 { [%eval 0.27] [%clk 1:24:28] } 13. Qc2 { [%eval 0.34] [%clk 1:25:36] } 13... Rb8 { [%eval 0.24] [%clk 1:00:34] } 14. Rad1 { [%eval 0.2] [%clk 1:24:21] } 14... Nd5 { [%eval 0.35] [%clk 0:47:29] } 15. Bd2 { [%eval 0.34] [%clk 1:16:25] } 15... Nb3 { [%eval 0.73] [%clk 0:36:49] } 16. Bxc4 { [%eval 0.78] [%clk 1:11:08] } 16... Nxd2 { [%eval 0.81] [%clk 0:36:49] } 17. Nxd2 { [%eval 0.79] [%clk 1:00:09] } 17... Nb6?! { [%eval 1.45] } { Inaccuracy. Nxc3 was best. } { [%clk 0:36:27] } 18. Bd3 { [%eval 1.5] [%clk 0:56:48] } 18... g6 { [%eval 1.59] [%clk 0:31:28] } 19. Nb3 { [%eval 1.43] [%clk 0:56:08] } 19... Nd5 { [%eval 1.44] [%clk 0:27:48] } 20. Ne2 { [%eval 1.26] [%clk 0:47:20] } 20... Ba8 { [%eval 1.32] [%clk 0:26:56] } 21. Be4?! { [%eval 0.55] } { Inaccuracy. Nc5 was best. } { [%clk 0:44:17] } 21... Qd7 { [%eval 1.1] [%clk 0:24:11] } 22. Nc5 { [%eval 1.1] [%clk 0:34:41] } 22... Qb5 { [%eval 1.16] [%clk 0:21:26] } 23. b4 { [%eval 1.33] [%clk 0:34:31] } 23... Rfd8 { [%eval 1.21] [%clk 0:20:50] } 24. Nc1? { [%eval 0.08] } { Mistake. h4 was best. } { [%clk 0:07:07] } 24... a5 { [%eval 0.19] [%clk 0:19:10] } 25. N1b3?! { [%eval -0.78] } { Inaccuracy. a4 was best. } { [%clk 0:04:00] } 25... axb4 { [%eval -0.47] [%clk 0:18:07] } 26. a4 { [%eval -0.53] [%clk 0:04:24] } 26... Qe8 { [%eval -0.55] [%clk 0:18:02] } 27. Rd3 { [%eval -0.5] [%clk 0:03:38] } 27... Nc3 { [%eval -0.5] [%clk 0:17:07] } 28. Bxa8 { [%eval -0.5] [%clk 0:03:59] } 28... Rxa8 { [%eval -0.5] [%clk 0:17:34] } 29. a5?! { [%eval -1.43] } { Inaccuracy. h3 was best. } { [%clk 0:03:01] } 29... Qb5 { [%eval -1.62] [%clk 0:16:48] } 30. Re3 { [%eval -1.54] [%clk 0:01:47] } 30... Qc4?? { [%eval 0.53] } { Blunder. Bxc5 was best. } { [%clk 0:12:48] } 31. Ne4 { [%eval 0.42] [%clk 0:01:41] } 31... Qb5 { [%eval 0.79] [%clk 0:07:58] } 32. Nxc3 { [%eval 0.85] [%clk 0:02:07] } 32... bxc3 { [%eval 0.76] [%clk 0:08:26] } 33. Rxc3 { [%eval 0.7] [%clk 0:02:21] } 33... Bb4 { [%eval 0.87] [%clk 0:08:45] } 34. Rxc7 { [%eval 0.93] [%clk 0:02:07] } 34... Bxa5 { [%eval 0.85] [%clk 0:09:11] } 35. Rc5 { [%eval 0.91] [%clk 0:02:05] } 35... Qb4 { [%eval 0.8] [%clk 0:09:00] } 36. Rb1 { [%eval 0.57] [%clk 0:01:34] } 36... Rdb8 { [%eval 0.65] [%clk 0:05:06] } 37. d5 { [%eval 0.14] [%clk 0:01:10] } 37... exd5 { [%eval 0.08] [%clk 0:05:03] } 38. Rxd5 { [%eval 0.1] [%clk 0:01:33] } 38... Qc3 { [%eval 0.1] [%clk 0:05:07] } 39. Rc5?? { [%eval -2.96] } { Blunder. Qd1 was best. } { [%clk 0:00:34] } 39... Qxc2?? { [%eval 0.01] } { Blunder. Rxb3 was best. } { [%clk 0:04:03] } 40. Rxc2 { [%eval 0.07] [%clk 0:01:02] } 40... Rb5 { [%eval 0.02] [%clk 0:04:22] } 41. Rc5 { [%eval 0.08] [%clk 0:00:34] } 41... Rab8 { [%eval 0.06] [%clk 0:04:47] } 42. Rxb5 { [%eval 0.03] [%clk 0:00:50] } 42... Rxb5 { [%eval 0.03] [%clk 0:05:16] } 43. f4 { [%eval 0.03] [%clk 0:00:44] } 43... Bb6+ { [%eval 0.03] [%clk 0:03:29] } 44. Kf1 { [%eval 0.02] [%clk 0:01:11] } 44... Be3 { [%eval 0.02] [%clk 0:03:38] } 45. g3 { [%eval 0.02] [%clk 0:00:59] } 45... g5 { [%eval 0.03] [%clk 0:04:05] } 46. fxg5 { [%eval 0.03] [%clk 0:00:49] } 46... Bxg5 { [%eval 0.01] [%clk 0:04:29] } 47. Nd2 { [%eval 0.04] [%clk 0:00:49] } 47... Rxe5 { [%eval 0.02] [%clk 0:04:38] } 48. Nf3 { [%eval 0.02] [%clk 0:01:12] } 48... Rf5 { [%eval 0.03] [%clk 0:05:05] } 49. Kg2 { [%eval 0.0] [%clk 0:01:35] } 49... Bf6 { [%eval 0.03] [%clk 0:05:32] } 1/2-1/2