Event: Round 6: Joshua Posthuma - Mike Ivanov
Date: 2023-03-15
White: Joshua Posthuma
WhiteTitle: IM
Black: Mike Ivanov
BlackTitle: FM
Result: 1/2-1/2
ECO: A05
Opening: King's Indian Attack: Symmetrical Defense
Variant: Standard

1. Nf3 { [%eval 0.36] [%clk 1:25:55] } 1... Nf6 { [%eval 0.29] [%clk 1:30:52] } 2. g3 { [%eval 0.05] [%clk 1:26:11] } 2... g6 { [%eval 0.25] [%clk 1:30:54] } 3. b3 { [%eval -0.13] [%clk 1:26:25] } 3... d5 { [%eval 0.0] [%clk 1:30:53] } 4. Bb2 { [%eval 0.01] [%clk 1:25:40] } 4... c5 { [%eval -0.03] [%clk 1:30:50] } 5. Bg2 { [%eval 0.0] [%clk 1:24:08] } 5... Bg7 { [%eval 0.0] [%clk 1:29:27] } 6. O-O { [%eval 0.0] [%clk 1:24:12] } 6... O-O { [%eval -0.12] [%clk 1:29:04] } 7. c4 { [%eval -0.12] [%clk 1:12:29] } 7... d4 { [%eval -0.02] [%clk 1:28:46] } 8. b4 { [%eval 0.01] [%clk 1:07:30] } 8... Re8 { [%eval 0.04] [%clk 1:28:51] } 9. d3 { [%eval 0.02] [%clk 0:50:08] } 9... e5 { [%eval -0.04] [%clk 1:28:43] } 10. Nbd2?! { [%eval -0.81] } { Inaccuracy. bxc5 was best. } { [%clk 0:44:41] } 10... a5?! { [%eval 0.18] } { Inaccuracy. cxb4 was best. } { [%clk 1:20:09] } 11. bxc5 { [%eval 0.15] [%clk 0:42:29] } 11... Na6 { [%eval 0.2] [%clk 1:20:30] } 12. Ba3 { [%eval 0.06] [%clk 0:36:48] } 12... Qc7?! { [%eval 0.64] } { Inaccuracy. Bf8 was best. } { [%clk 1:15:57] } 13. Rb1 { [%eval 0.73] [%clk 0:36:00] } 13... Nxc5 { [%eval 0.78] [%clk 1:12:26] } 14. Bxc5 { [%eval 0.82] [%clk 0:34:29] } 14... Qxc5 { [%eval 0.69] [%clk 1:12:47] } 15. Ng5 { [%eval 0.73] [%clk 0:31:27] } 15... Qc7 { [%eval 0.76] [%clk 1:10:20] } 16. Nge4 { [%eval 0.22] [%clk 0:30:51] } 16... Nxe4 { [%eval 0.29] [%clk 0:59:10] } 17. Nxe4 { [%eval 0.33] [%clk 0:30:53] } 17... f5 { [%eval 0.16] [%clk 0:57:09] } 18. Ng5 { [%eval 0.39] [%clk 0:30:04] } 18... Bf6 { [%eval 0.23] [%clk 0:31:50] } 19. Bd5+ { [%eval -0.16] [%clk 0:28:57] } 19... Kg7 { [%eval -0.04] [%clk 0:32:18] } 20. Nf3 { [%eval -0.15] [%clk 0:19:44] } 20... Rb8 { [%eval -0.2] [%clk 0:32:33] } 21. e4 { [%eval -0.49] [%clk 0:15:55] } 21... dxe3 { [%eval -0.6] [%clk 0:31:34] } 22. fxe3 { [%eval -0.53] [%clk 0:16:18] } 22... Bd7 { [%eval -0.37] [%clk 0:25:35] } 23. a4 { [%eval -0.29] [%clk 0:15:12] } 23... Qc5 { [%eval -0.47] [%clk 0:25:15] } 24. d4 { [%eval -0.41] [%clk 0:14:35] } 24... exd4 { [%eval -0.33] [%clk 0:24:17] } 25. exd4 { [%eval -0.57] [%clk 0:14:18] } 25... Qc7 { [%eval -0.2] [%clk 0:22:48] } 26. Qb3 { [%eval -0.26] [%clk 0:12:59] } 26... b6 { [%eval -0.13] [%clk 0:17:55] } 27. Rfe1 { [%eval -0.13] [%clk 0:12:59] } 27... f4 { [%eval 0.0] [%clk 0:16:05] } 28. Rxe8 { [%eval 0.0] [%clk 0:11:04] } 28... Bxe8 { [%eval -0.09] [%clk 0:16:34] } 29. g4 { [%eval 0.03] [%clk 0:11:08] } 29... Bc6? { [%eval 1.49] } { Mistake. g5 was best. } { [%clk 0:14:15] } 30. g5 { [%eval 1.72] [%clk 0:09:40] } 30... Bd8 { [%eval 1.48] [%clk 0:10:55] } 31. Bxc6 { [%eval 1.71] [%clk 0:08:59] } 31... Qxc6 { [%eval 1.39] [%clk 0:11:24] } 32. Re1?! { [%eval 0.49] } { Inaccuracy. d5 was best. } { [%clk 0:09:00] } 32... Rc8 { [%eval 0.33] [%clk 0:10:23] } 33. Ne5 { [%eval 0.19] [%clk 0:07:52] } 33... Qe6 { [%eval 0.62] [%clk 0:07:45] } 34. h4 { [%eval 0.56] [%clk 0:06:32] } 34... Bc7 { [%eval 0.99] [%clk 0:07:49] } 35. d5 { [%eval 0.94] [%clk 0:05:52] } 35... Qf5?! { [%eval 2.01] } { Inaccuracy. Qe7 was best. } { [%clk 0:07:57] } 36. Nc6?! { [%eval 1.31] } { Inaccuracy. Qc3 was best. } { [%clk 0:05:00] } 36... Bd6 { [%eval 0.74] [%clk 0:05:37] } 37. Qc3+ { [%eval 0.63] [%clk 0:00:55] } 37... Kf7 { [%eval 0.71] [%clk 0:06:04] } 38. Ne5+?? { [%eval -3.72] } { Blunder. Re6 was best. } { [%clk 0:00:44] } 38... Bxe5?? { [%eval 0.0] } { Blunder. Kg8 was best. } { [%clk 0:05:37] } 39. Rxe5 { [%eval 0.0] [%clk 0:01:13] } 39... Qg4+ { [%eval 0.0] [%clk 0:05:24] } 40. Kf2 { [%eval 0.0] [%clk 0:01:04] } 40... Qxh4+ { [%eval 0.0] [%clk 0:03:05] } 41. Ke2?? { [%eval -2.7] } { Blunder. Kf1 was best. } { [%clk 0:01:31] } 41... Qg4+?? { [%eval 0.0] } { Blunder. Rxc4 was best. } { [%clk 0:03:23] } 42. Kd2 { [%eval 0.0] [%clk 0:01:21] } 42... Qg2+ { [%eval 0.0] [%clk 0:02:42] } 43. Kd1 { [%eval 0.0] [%clk 0:01:17] } 43... Qg4+ { [%eval 0.0] [%clk 0:01:24] } 44. Kd2 { [%eval 0.0] [%clk 0:00:51] } 44... f3 { [%eval 0.0] [%clk 0:00:46] } 45. Qe3 { [%eval 0.0] [%clk 0:00:54] } 45... Qxc4 { [%eval 0.0] [%clk 0:01:08] } 46. Rf5+ { [%eval 0.0] [%clk 0:00:38] } 46... gxf5 { [%eval 0.0] [%clk 0:01:04] } 47. Qe6+ { [%eval 0.0] [%clk 0:01:05] } 47... Kg7 { [%eval 0.0] [%clk 0:01:02] } 48. Qf6+ { [%eval 0.0] [%clk 0:01:28] } 48... Kg8 { [%eval 0.0] [%clk 0:01:23] } 49. Qe6+ { [%eval 0.0] [%clk 0:01:49] } 49... Kf8 { [%eval 0.0] [%clk 0:01:40] } 50. Qf6+ { [%eval 0.0] [%clk 0:02:18] } 1/2-1/2