Event: Round 4: OSADEBE MICHAEL IKECHUKWU - OFUBU SAMSON
Date: 2023-03-25
White: OSADEBE MICHAEL IKECHUKWU
Black: OFUBU SAMSON
Result: 1/2-1/2
ECO: A28
Opening: English Opening: Four Knights System, Nimzowitsch Variation
Variant: Standard

1. c4 { [%eval 0.23] [%clk 1:30:53] } 1... e5 { [%eval 0.25] [%clk 1:11:47] } 2. Nc3 { [%eval 0.12] [%clk 1:31:04] } 2... Nc6 { [%eval 0.31] [%clk 1:12:02] } 3. Nf3 { [%eval 0.06] [%clk 1:30:32] } 3... Nf6 { [%eval 0.18] [%clk 1:11:59] } 4. e4 { [%eval 0.03] [%clk 1:30:19] } 4... d6 { [%eval 0.32] [%clk 1:11:41] } 5. d4 { [%eval 0.47] [%clk 1:30:28] } 5... Bg4 { [%eval 0.29] [%clk 1:11:21] } 6. d5 { [%eval 0.52] [%clk 1:29:56] } 6... Nd4 { [%eval 0.36] [%clk 1:11:32] } 7. Be3 { [%eval 0.2] [%clk 1:30:06] } 7... Nxf3+ { [%eval 0.38] [%clk 0:57:23] } 8. gxf3 { [%eval 0.2] } 8... Bh5 { [%eval 0.66] } 9. Be2 { [%eval 0.34] [%clk 1:29:48] } 9... Qd7?! { [%eval 0.96] } { Inaccuracy. Be7 was best. } { [%clk 0:57:34] } 10. Qb3 { [%eval 0.92] [%clk 1:28:41] } 10... c5 { [%eval 0.97] [%clk 0:55:28] } 11. dxc6 { [%eval 1.29] } 11... bxc6 { [%eval 1.1] [%clk 0:55:52] } 12. O-O-O { [%eval 1.28] [%clk 1:28:55] } 12... Qc7 { [%eval 1.12] [%clk 0:55:18] } 13. Rhg1 { [%eval 0.7] [%clk 1:28:19] } 13... Be7 { [%eval 0.85] [%clk 0:54:49] } 14. f4 { [%eval 0.65] [%clk 1:26:03] } 14... O-O-O? { [%eval 2.3] } { Mistake. Bxe2 was best. } { [%clk 0:52:10] } 15. f3 { [%eval 2.4] [%clk 1:23:05] } 15... Qa5 { [%eval 2.85] [%clk 0:48:49] } 16. c5 { [%eval 2.63] [%clk 1:20:16] } 16... Kc7?! { [%eval 3.65] } { Inaccuracy. dxc5 was best. } { [%clk 0:46:43] } 17. cxd6+ { [%eval 3.79] [%clk 1:17:01] } 17... Bxd6 { [%eval 3.65] [%clk 0:47:10] } 18. Qc4?! { [%eval 2.58] } { Inaccuracy. Rxd6 was best. } { [%clk 1:15:40] } 18... exf4 { [%eval 2.78] [%clk 0:46:08] } 19. Bxa7 { [%eval 2.97] [%clk 1:15:23] } 19... Be5 { [%eval 3.5] [%clk 0:45:56] } 20. Bd4?? { [%eval 0.69] } { Blunder. Rg5 was best. } { [%clk 1:01:25] } 20... Bxd4 { [%eval 0.77] [%clk 0:44:49] } 21. Rxd4 { [%eval 0.65] [%clk 1:01:41] } 21... Rxd4 { [%eval 0.99] [%clk 0:45:12] } 22. Qxd4 { [%eval 0.54] [%clk 1:01:45] } 22... Rd8 { [%eval 0.46] [%clk 0:45:30] } 23. Qc4 { [%eval 0.64] [%clk 1:02:00] } 23... Bg6 { [%eval 1.19] [%clk 0:43:07] } 24. Kb1 { [%eval 0.64] } 24... Rb8?? { [%eval 3.32] } { Blunder. Nd5 was best. } 25. Rc1 { [%eval 3.23] [%clk 0:57:06] } 25... Qb6?! { [%eval 4.31] } { Inaccuracy. Qe5 was best. } { [%clk 0:33:10] } 26. Na4 { [%eval 4.43] [%clk 0:56:54] } 26... Qb7 { [%eval 4.39] [%clk 0:32:24] } 27. b3?! { [%eval 2.82] } { Inaccuracy. Qd4 was best. } { [%clk 0:51:56] } 27... Rd8? { [%eval 4.5] } { Mistake. Kd8 was best. } { [%clk 0:29:53] } 28. Nc5 { [%eval 4.26] [%clk 0:50:33] } 28... Qb6 { [%eval 4.57] [%clk 0:29:40] } 29. Nd3?? { [%eval 2.01] } { Blunder. Na4 was best. } { [%clk 0:45:50] } 29... Kb7?! { [%eval 3.08] } { Inaccuracy. Rd6 was best. } { [%clk 0:26:53] } 30. Nxf4?! { [%eval 2.37] } { Inaccuracy. Nc5+ was best. } { [%clk 0:43:24] } 30... Rd7 { [%eval 2.85] [%clk 0:25:55] } 31. Nd3 { [%eval 2.91] [%clk 0:43:47] } 31... Rd8 { [%eval 3.65] [%clk 0:26:03] } 32. Ne5 { [%eval 3.89] [%clk 0:40:44] } 32... Rd4 { [%eval 4.19] [%clk 0:25:06] } 33. Qxc6+ { [%eval 3.88] [%clk 0:38:53] } 33... Qxc6 { [%eval 3.88] [%clk 0:25:34] } 34. Nxc6 { [%eval 3.58] [%clk 0:39:12] } 34... Rd2 { [%eval 4.13] [%clk 0:25:29] } 35. Na5+ { [%eval 3.79] [%clk 0:39:33] } 35... Kb8 { [%eval 4.23] [%clk 0:25:26] } 36. Bd1?? { [%eval 1.34] } { Blunder. Rc2 was best. } { [%clk 0:33:44] } 36... Rxh2 { [%eval 1.43] [%clk 0:25:24] } 37. b4?! { [%eval 0.8] } { Inaccuracy. Nc6+ was best. } { [%clk 0:34:06] } 37... Nd7? { [%eval 2.36] } { Mistake. h5 was best. } { [%clk 0:25:23] } 38. b5?! { [%eval 1.26] } { Inaccuracy. Nc6+ was best. } { [%clk 0:34:07] } 38... f5 { [%eval 1.68] [%clk 0:25:32] } 39. Nc6+ { [%eval 1.41] [%clk 0:32:51] } 39... Kb7 { [%eval 1.2] [%clk 0:25:35] } 40. Ne7?! { [%eval 0.21] } { Inaccuracy. e5 was best. } { [%clk 0:32:43] } 40... Bf7?! { [%eval 0.86] } { Inaccuracy. fxe4 was best. } { [%clk 0:25:01] } 41. a4 { [%eval 1.04] [%clk 0:33:00] } 41... fxe4 { [%eval 1.08] [%clk 0:25:21] } 42. a5 { [%eval 0.98] [%clk 0:32:20] } 42... Ra2? { [%eval 2.79] } { Mistake. e3 was best. } { [%clk 0:24:11] } 43. Nc6 { [%eval 2.93] [%clk 0:31:35] } 43... Bg8 { [%eval 2.86] [%clk 0:23:58] } 44. Nd8+ { [%eval 3.03] [%clk 0:31:45] } 44... Kb8 { [%eval 2.78] [%clk 0:24:02] } 45. fxe4?? { [%eval 0.52] } { Blunder. Nc6+ was best. } { [%clk 0:30:00] } 45... Ne5 { [%eval 0.68] [%clk 0:23:51] } 46. a6 { [%eval 0.14] [%clk 0:29:42] } 46... Nd3?? { [%eval 3.62] } { Blunder. Rd2 was best. } { [%clk 0:22:39] } 47. Rc2 { [%eval 3.74] [%clk 0:29:56] } 47... Rxc2 { [%eval 4.27] [%clk 0:22:35] } 48. Kxc2 { [%eval 4.41] [%clk 0:30:11] } 48... Nc5 { [%eval 4.37] [%clk 0:22:41] } 49. Nc6+ { [%eval 4.71] [%clk 0:30:11] } 49... Ka8 { [%eval 5.51] [%clk 0:22:15] } 50. Bf3?! { [%eval 4.26] } { Inaccuracy. Kc3 was best. } { [%clk 0:30:37] } 50... Bc4 { [%eval 4.73] [%clk 0:21:31] } 51. Nd4?! { [%eval 3.31] } { Inaccuracy. Kc3 was best. } { [%clk 0:30:12] } 51... Ka7 { [%eval 4.12] [%clk 0:18:54] } 52. Kc3?! { [%eval 3.22] } { Inaccuracy. Nc6+ was best. } { [%clk 0:30:31] } 52... Bf1?! { [%eval 4.33] } { Inaccuracy. Bxb5 was best. } { [%clk 0:19:13] } 53. Kb4?? { [%eval 1.03] } { Blunder. Nc6+ was best. } { [%clk 0:30:44] } 53... Kb6 { [%eval 0.89] [%clk 0:19:24] } 54. Kc3 { [%eval 0.77] [%clk 0:25:19] } 54... Nd7 { [%eval 0.62] [%clk 0:17:10] } 55. Bd1?! { [%eval 0.04] } { Inaccuracy. Kd2 was best. } { [%clk 0:24:04] } 55... Bg2 { [%eval 0.05] [%clk 0:16:42] } 56. Bc2 { [%eval 0.02] [%clk 0:24:23] } 56... h5 { [%eval 0.0] [%clk 0:16:45] } 57. Kd2 { [%eval -0.01] [%clk 0:17:38] } 57... h4 { [%eval 0.0] [%clk 0:15:22] } 58. Ke3 { [%eval 0.0] [%clk 0:17:50] } 58... h3 { [%eval 0.0] [%clk 0:15:31] } 59. Kf2 { [%eval 0.0] [%clk 0:18:13] } 59... Nf6 { [%eval -0.03] [%clk 0:15:42] } 60. e5 { [%eval 0.0] [%clk 0:18:22] } 60... Ng4+ { [%eval 0.0] [%clk 0:15:59] } 61. Kg3 { [%eval 0.0] [%clk 0:18:27] } 61... Nxe5 { [%eval 0.0] [%clk 0:16:27] } 62. Bf5 { [%eval 0.0] [%clk 0:16:17] } 62... Nc4 { [%eval 0.0] [%clk 0:15:19] } 63. Bxh3 { [%eval 0.0] [%clk 0:10:49] } 63... Bxh3 { [%eval 0.0] [%clk 0:15:33] } 64. Kxh3 { [%eval 0.0] [%clk 0:11:14] } 64... Nd6 { [%eval 0.0] [%clk 0:15:56] } 1/2-1/2