Event: Round 3: Brandon Jacobson - Dimitar Mardov
Date: 2021-11-25
White: Brandon Jacobson
WhiteTitle: GM
Black: Dimitar Mardov
BlackTitle: IM
Result: 1/2-1/2
ECO: A06
Opening: Zukertort Opening
Variant: Standard

1. Nf3 { [%eval 0.0] [%clk 1:40:56] } 1... d5 { [%eval 0.21] [%clk 1:40:46] } 2. e3 { [%eval 0.14] [%clk 1:41:22] } 2... Nf6 { [%eval 0.05] [%clk 1:39:19] } 3. c4 { [%eval 0.0] [%clk 1:41:47] } 3... e6 { [%eval 0.17] [%clk 1:39:04] } 4. Nc3 { [%eval 0.0] [%clk 1:42:10] } 4... Be7 { [%eval 0.07] [%clk 1:38:12] } 5. b3 { [%eval 0.13] [%clk 1:42:23] } 5... O-O { [%eval 0.18] [%clk 1:38:22] } 6. Bb2 { [%eval 0.0] [%clk 1:42:48] } 6... b6 { [%eval 0.4] [%clk 1:36:08] } 7. cxd5 { [%eval 0.12] [%clk 1:43:01] } 7... exd5 { [%eval 0.21] [%clk 1:34:24] } 8. d4 { [%eval 0.07] [%clk 1:43:26] } 8... Bb7 { [%eval 0.3] [%clk 1:34:08] } 9. Bd3 { [%eval 0.28] [%clk 1:43:48] } 9... c5 { [%eval 0.42] [%clk 1:32:04] } 10. O-O { [%eval 0.44] [%clk 1:43:56] } 10... Nc6 { [%eval 0.3] [%clk 1:29:22] } 11. dxc5 { [%eval 0.38] [%clk 1:43:49] } 11... bxc5 { [%eval 0.37] [%clk 1:28:33] } 12. Rc1 { [%eval 0.51] [%clk 1:42:04] } 12... Nb4 { [%eval 0.62] [%clk 1:13:42] } 13. Bb1 { [%eval 0.54] [%clk 1:38:36] } 13... Ba6?! { [%eval 1.06] } { Inaccuracy. Re8 was best. } { [%clk 1:10:12] } 14. Re1 { [%eval 1.05] [%clk 1:38:53] } 14... c4 { [%eval 0.84] [%clk 1:05:34] } 15. a3 { [%eval 1.37] [%clk 1:30:57] } 15... Nd3 { [%eval 1.4] [%clk 1:03:38] } 16. Bxd3 { [%eval 1.34] [%clk 1:31:20] } 16... cxd3 { [%eval 1.38] [%clk 1:04:03] } 17. Ne5 { [%eval 1.32] [%clk 1:30:19] } 17... Qb8 { [%eval 1.28] [%clk 0:58:05] } 18. Na4? { [%eval 0.07] } { Mistake. Nb1 was best. } { [%clk 1:16:33] } 18... d2?! { [%eval 1.04] } { Inaccuracy. Bd6 was best. } { [%clk 0:44:09] } 19. Qxd2 { [%eval 0.46] [%clk 1:14:09] } 19... Qxb3 { [%eval 0.64] [%clk 0:44:16] } 20. Nc6 { [%eval 0.55] [%clk 0:37:56] } 20... Bxa3 { [%eval 0.37] [%clk 0:39:47] } 21. Bxa3 { [%eval 0.54] [%clk 0:38:22] } 21... Qxa3 { [%eval 0.63] [%clk 0:39:37] } 22. Nc5 { [%eval 0.6] [%clk 0:38:48] } 22... Ne4 { [%eval 0.69] [%clk 0:31:25] } 23. Nxe4 { [%eval 0.7] [%clk 0:36:40] } 23... dxe4 { [%eval 0.67] [%clk 0:31:43] } 24. Ra1 { [%eval 0.69] [%clk 0:37:07] } 24... Qd3 { [%eval 0.61] [%clk 0:31:43] } 25. Qa5 { [%eval 0.78] [%clk 0:37:34] } 25... Bc8 { [%eval 0.6] [%clk 0:23:59] } 26. Red1 { [%eval 0.5] [%clk 0:33:43] } 26... Qe2 { [%eval 0.58] [%clk 0:20:58] } 27. Qd5 { [%eval 0.38] [%clk 0:28:44] } 27... Be6 { [%eval 0.39] [%clk 0:19:32] } 28. Qxe4 { [%eval 0.05] [%clk 0:29:08] } 28... a6 { [%eval 0.47] [%clk 0:16:31] } 29. h3 { [%eval 0.42] [%clk 0:10:06] } 29... h6 { [%eval 0.52] [%clk 0:15:48] } 30. Rdc1 { [%eval 0.44] [%clk 0:06:49] } 30... Qb2 { [%eval 0.37] [%clk 0:12:45] } 31. Nd4 { [%eval 0.36] [%clk 0:05:02] } 31... Kh8 { [%eval 0.62] [%clk 0:10:15] } 32. Rcb1 { [%eval 0.77] [%clk 0:03:48] } 32... Qd2 { [%eval 0.67] [%clk 0:09:51] } 33. Rd1 { [%eval 0.53] [%clk 0:04:12] } 33... Qb2 { [%eval 0.64] [%clk 0:09:50] } 34. Rdb1 { [%eval 0.72] [%clk 0:03:54] } 34... Qd2 { [%eval 0.56] [%clk 0:10:15] } 35. Rd1 { [%eval 0.46] [%clk 0:03:28] } 35... Qb2 { [%eval 0.63] [%clk 0:10:40] } 36. Nxe6 { [%eval 0.59] [%clk 0:03:34] } 36... fxe6 { [%eval 0.69] [%clk 0:11:04] } 37. f4 { [%eval 0.68] [%clk 0:04:02] } 37... Rad8?? { [%eval 2.65] } { Blunder. a5 was best. } { [%clk 0:05:05] } 38. Qxe6?? { [%eval 0.24] } { Blunder. Rdb1 was best. } { [%clk 0:02:31] } 38... Rde8 { [%eval 0.13] [%clk 0:04:22] } 39. Qd6 { [%eval 0.21] [%clk 0:02:35] } 39... Rf6 { [%eval 0.19] [%clk 0:04:09] } 40. Qa3 { [%eval 0.2] [%clk 0:02:53] } 40... Qb6 { [%eval 0.23] [%clk 0:03:30] } 41. Re1 { [%eval 0.11] [%clk 0:00:46] } 41... Rxf4 { [%eval 0.14] [%clk 0:02:06] } 42. Qxa6 { [%eval 0.1] [%clk 0:01:11] } 42... Qb4?! { [%eval 0.69] } { Inaccuracy. Qxa6 was best. } { [%clk 0:00:57] } 43. Kh1 { [%eval 0.2] [%clk 0:00:46] } 43... Rff8 { [%eval 0.19] [%clk 0:00:54] } 44. Rab1 { [%eval 0.22] [%clk 0:00:56] } 44... Qe4 { [%eval 0.19] [%clk 0:01:02] } 45. Qa2 { [%eval 0.23] [%clk 0:01:05] } 45... Rf6 { [%eval 0.17] [%clk 0:01:13] } 46. Rbd1 { [%eval 0.25] [%clk 0:01:07] } 46... Rfe6 { [%eval 0.22] [%clk 0:00:49] } 47. Qb2 { [%eval 0.21] [%clk 0:01:24] } 47... Qg6 { [%eval 0.17] [%clk 0:00:57] } 48. Qf2 { [%eval 0.27] [%clk 0:01:01] } 48... Rf6 { [%eval 0.27] [%clk 0:01:01] } 49. Qe2 { [%eval 0.07] [%clk 0:01:18] } 49... Qg3 { [%eval 0.12] [%clk 0:00:48] } 50. Kg1 { [%eval 0.0] [%clk 0:01:05] } 50... Rg6 { [%eval 0.0] [%clk 0:00:40] } 51. Qc2 { [%eval 0.0] [%clk 0:00:34] } 51... Re5 { [%eval 0.19] } 52. e4?? { [%eval -5.39] } { Blunder. Re2 was best. } 52... Rxe4?? { [%eval 7.62] } { Blunder. Rh5 was best. } { [%clk 0:00:39] } 53. Rd4?? { [%eval #-1] } { Checkmate is now unavoidable. Qxe4 was best. } 53... Re3?? { [%eval 0.0] } { Lost forced checkmate sequence. Rxe1# was best. } 54. Rd8+ { [%eval 0.0] [%clk 0:00:35] } 54... Kh7 { [%eval 0.0] [%clk 0:01:06] } 55. Rf1 { [%eval 0.0] [%clk 0:00:37] } 55... Re1 { [%eval 0.0] [%clk 0:00:40] } 56. Rxe1 { [%eval 0.0] [%clk 0:00:57] } 56... Qxe1+ { [%eval 0.0] [%clk 0:00:57] } 57. Kh2 { [%eval 0.0] [%clk 0:01:24] } 57... Qg3+ { [%eval 0.0] [%clk 0:00:46] } 58. Kh1 { [%eval 0.0] [%clk 0:00:34] } 58... Qe1+ { [%eval 0.0] [%clk 0:00:39] } 1/2-1/2