Event: Round 9: Zachary Tanenbaum - Mykola Bortnyk
Date: 2023-04-09
White: Zachary Tanenbaum
WhiteTitle: CM
Black: Mykola Bortnyk
BlackTitle: IM
Result: 0-1
ECO: B75
Opening: Sicilian Defense: Dragon Variation, Yugoslav Attack, Early Deviations
Variant: Standard

1. e4 { [%eval 0.36] [%clk 1:28:26] } 1... c5 { [%eval 0.32] [%clk 1:26:42] } 2. Nf3 { [%eval 0.0] [%clk 1:28:51] } 2... d6 { [%eval 0.0] [%clk 1:27:08] } 3. d4 { [%eval 0.25] [%clk 1:29:19] } 3... Nf6 { [%eval 0.3] [%clk 1:27:34] } 4. Nc3 { [%eval 0.41] [%clk 1:29:44] } 4... cxd4 { [%eval 0.26] [%clk 1:28:00] } 5. Nxd4 { [%eval 0.21] [%clk 1:30:11] } 5... g6?! { [%eval 0.79] } { Inaccuracy. a6 was best. } { [%clk 1:28:23] } 6. Be3 { [%eval 0.46] [%clk 1:30:37] } 6... Bg7 { [%eval 0.58] [%clk 1:28:48] } 7. f3 { [%eval 0.5] [%clk 1:31:03] } 7... a6 { [%eval 0.64] [%clk 1:29:15] } 8. g4 { [%eval 0.7] [%clk 1:31:17] } 8... b5 { [%eval 0.7] [%clk 1:29:19] } 9. Qd2 { [%eval 0.65] [%clk 1:31:08] } 9... h5 { [%eval 0.78] [%clk 1:29:41] } 10. g5 { [%eval 0.64] [%clk 1:31:31] } 10... Nfd7 { [%eval 0.83] [%clk 1:30:10] } 11. f4 { [%eval 0.81] [%clk 1:31:50] } 11... Bb7 { [%eval 0.84] [%clk 1:30:36] } 12. f5 { [%eval 0.75] [%clk 1:30:37] } 12... Ne5 { [%eval 1.22] [%clk 1:28:43] } 13. O-O-O { [%eval 1.03] [%clk 1:26:34] } 13... Nbd7 { [%eval 1.51] [%clk 1:26:37] } 14. fxg6 { [%eval 1.35] [%clk 1:01:32] } 14... Nxg6 { [%eval 1.46] [%clk 1:26:50] } 15. Bg2?! { [%eval 0.37] } { Inaccuracy. Bh3 was best. } { [%clk 0:30:20] } 15... Rc8 { [%eval 0.44] [%clk 1:26:12] } 16. Rhf1 { [%eval 0.3] [%clk 0:29:24] } 16... Qa5 { [%eval 0.65] [%clk 1:24:57] } 17. Nb3? { [%eval -0.62] } { Mistake. Qf2 was best. } { [%clk 0:21:43] } 17... Qc7?? { [%eval 1.49] } { Blunder. Bxc3 was best. } { [%clk 1:22:48] } 18. Nd5 { [%eval 1.38] [%clk 0:21:18] } 18... Bxd5 { [%eval 1.42] [%clk 1:21:02] } 19. exd5 { [%eval 1.36] [%clk 0:21:45] } 19... Nde5 { [%eval 1.38] [%clk 1:21:27] } 20. Bd4 { [%eval 1.35] [%clk 0:21:34] } 20... a5 { [%eval 1.37] [%clk 1:21:02] } 21. Nxa5 { [%eval 1.5] [%clk 0:17:19] } 21... Ra8 { [%eval 1.32] [%clk 1:20:52] } 22. Nc6 { [%eval 0.8] [%clk 0:16:35] } 22... Rxa2 { [%eval 0.95] [%clk 1:20:31] } 23. Kb1 { [%eval 0.71] [%clk 0:16:47] } 23... Ra6?! { [%eval 1.36] } { Inaccuracy. Ra4 was best. } { [%clk 1:19:25] } 24. Qb4? { [%eval 0.0] } { Mistake. c3 was best. } { [%clk 0:13:28] } 24... O-O { [%eval 0.0] [%clk 1:18:34] } 25. Qxb5 { [%eval 0.0] [%clk 0:12:45] } 25... Rfa8 { [%eval -0.12] [%clk 1:17:48] } 26. c3 { [%eval -0.12] [%clk 0:12:23] } 26... Ng4 { [%eval 0.0] [%clk 1:13:51] } 27. Qe2 { [%eval -0.07] [%clk 0:09:52] } 27... Qb7 { [%eval 0.0] [%clk 1:11:09] } 28. Rxf7?! { [%eval -1.09] } { Inaccuracy. Qf3 was best. } { [%clk 0:03:22] } 28... Be5 { [%eval -1.48] [%clk 1:09:23] } 29. Rdf1 { [%eval -1.9] [%clk 0:01:10] } 29... Qb3 { [%eval -1.75] [%clk 1:07:52] } 30. Na7?? { [%eval -5.0] } { Blunder. Qxa6 was best. } { [%clk 0:00:43] } 30... R8xa7 { [%eval -5.14] [%clk 1:06:17] } 31. Bxa7 { [%eval -5.24] [%clk 0:01:04] } 31... Bxc3 { [%eval -5.0] [%clk 1:06:45] } 32. Be4 { [%eval -5.15] [%clk 0:00:41] } 32... Ra2 { [%eval -5.4] [%clk 1:06:05] } 33. R7f2 { [%eval -5.57] [%clk 0:00:34] } 33... Nxf2 { [%eval -6.01] [%clk 1:06:28] } 34. Rxf2 { [%eval -5.82] [%clk 0:00:34] } 34... Rxb2+ { [%eval -5.68] [%clk 1:06:54] } 35. Qxb2 { [%eval -5.77] [%clk 0:00:58] } 35... Bxb2 { [%eval -5.6] [%clk 1:07:21] } 36. Bc2 { [%eval -5.7] [%clk 0:00:33] } 36... Qb7 { [%eval -5.55] [%clk 1:07:37] } 37. Bxg6 { [%eval -5.6] [%clk 0:00:39] } 37... Bd4+ { [%eval -5.52] [%clk 1:08:04] } 38. Kc1 { [%eval -5.43] [%clk 0:00:38] } 38... Qxa7 { [%eval -5.57] [%clk 1:08:22] } 39. Rf3 { [%eval -5.62] [%clk 0:00:33] } 39... Qc5+ { [%eval -5.78] [%clk 1:08:43] } 40. Kd1 { [%eval -5.74] [%clk 0:00:39] } 40... Qxd5 { [%eval -5.74] [%clk 1:09:06] } 41. Bxh5 { [%eval -5.71] [%clk 0:00:45] } 41... Be3+ { [%eval -6.03] [%clk 1:09:04] } 42. Ke2 { [%eval -6.06] [%clk 0:00:59] } 42... Qd2+ { [%eval -5.98] [%clk 1:09:28] } 43. Kf1 { [%eval -5.91] [%clk 0:01:28] } 43... Qxh2 { [%eval -6.06] [%clk 1:09:45] } 44. Bf7+ { [%eval -6.15] [%clk 0:00:40] } 44... Kg7 { [%eval -6.08] [%clk 1:10:14] } 45. g6 { [%eval -6.41] [%clk 0:00:55] } 45... Bd4 { [%eval -6.26] [%clk 1:10:20] } 46. Ke1 { [%eval -7.06] [%clk 0:00:38] } 46... Qg1+ { [%eval -10.87] [%clk 1:10:36] } 47. Rf1?! { [%eval #-8] } { Checkmate is now unavoidable. Kd2 was best. } { [%clk 0:01:05] } 47... Qe3+? { [%eval -9.29] } { Lost forced checkmate sequence. Qg2 was best. } { [%clk 1:11:01] } 48. Kd1 { [%eval -8.79] [%clk 0:01:33] } 48... Bc3 { [%eval -7.85] [%clk 1:11:26] } 49. Kc2 { [%eval -7.6] [%clk 0:01:53] } 49... Qe2+ { [%eval -7.24] [%clk 1:11:50] } 0-1