Event: FIDE Online Chess Olympiad Division 4 Pool B 2021
Date: 2021-08-20
White: Cyubahiro, Ben Patrick
WhiteElo: 1755
Black: Tsephe, Lebajoa
BlackElo: 1438
Result: 1/2-1/2
ECO: E92
Opening: King's Indian Defense: Exchange Variation
Variant: Standard
TimeControl: 900+5

1. d4 { [%eval 0.0] [%clk 0:14:26] } 1... Nf6 { [%eval 0.19] [%clk 0:15:01] } 2. c4 { [%eval 0.11] [%clk 0:14:21] } 2... g6 { [%eval 0.3] [%clk 0:15:04] } 3. Nc3 { [%eval 0.17] [%clk 0:14:22] } 3... Bg7 { [%eval 0.48] [%clk 0:15:07] } 4. e4 { [%eval 0.67] [%clk 0:14:24] } 4... d6 { [%eval 0.43] [%clk 0:15:10] } 5. Nf3 { [%eval 0.45] [%clk 0:13:57] } 5... O-O { [%eval 0.48] [%clk 0:15:12] } 6. Be2 { [%eval 0.5] [%clk 0:13:46] } 6... e5 { [%eval 0.54] [%clk 0:15:10] } 7. dxe5 { [%eval 0.27] [%clk 0:13:12] } 7... dxe5 { [%eval 0.0] [%clk 0:15:11] } 8. Bg5 { [%eval -0.07] [%clk 0:13:11] } 8... Qe8?! { [%eval 0.46] } { Inaccuracy. Qxd1+ was best. } { [%clk 0:14:32] } 9. Nd5 { [%eval 0.17] [%clk 0:12:57] } 9... Nxd5? { [%eval 1.39] } { Mistake. Nxe4 was best. } { [%clk 0:14:16] } 10. cxd5 { [%eval 0.95] [%clk 0:12:56] } 10... h6 { [%eval 1.45] [%clk 0:14:14] } 11. Be3 { [%eval 1.37] [%clk 0:12:41] } 11... f5 { [%eval 1.77] [%clk 0:14:15] } 12. Bd3?? { [%eval 0.0] } { Blunder. Rc1 was best. } { [%clk 0:12:32] } 12... f4? { [%eval 1.49] } { Mistake. Nd7 was best. } { [%clk 0:14:08] } 13. Bc5 { [%eval 1.65] [%clk 0:12:10] } 13... Rf7 { [%eval 1.64] [%clk 0:14:08] } 14. Bc4?! { [%eval 0.9] } { Inaccuracy. Rc1 was best. } { [%clk 0:09:32] } 14... Nd7 { [%eval 0.99] [%clk 0:13:54] } 15. Ba3 { [%eval 1.01] [%clk 0:09:26] } 15... Nb6 { [%eval 0.84] [%clk 0:13:52] } 16. Bb3 { [%eval 0.35] [%clk 0:09:26] } 16... Kh7? { [%eval 1.65] } { Mistake. a5 was best. } { [%clk 0:12:47] } 17. Rc1 { [%eval 1.38] [%clk 0:09:06] } 17... Bg4?? { [%eval 4.11] } { Blunder. a5 was best. } { [%clk 0:11:05] } 18. Qd3?? { [%eval 0.98] } { Blunder. Ng5+ was best. } { [%clk 0:08:12] } 18... Rd8 { [%eval 0.97] [%clk 0:09:53] } 19. h3 { [%eval 0.97] [%clk 0:08:06] } 19... Bxf3 { [%eval 0.8] [%clk 0:09:30] } 20. Qxf3 { [%eval 1.02] [%clk 0:08:03] } 20... Rc8?! { [%eval 1.89] } { Inaccuracy. Bf8 was best. } { [%clk 0:06:09] } 21. O-O { [%eval 1.75] [%clk 0:07:52] } 21... Bf8 { [%eval 1.61] [%clk 0:05:18] } 22. Bxf8 { [%eval 1.43] [%clk 0:07:30] } 22... Rxf8?! { [%eval 2.01] } { Inaccuracy. Qxf8 was best. } { [%clk 0:05:02] } 23. Rc2 { [%eval 1.97] [%clk 0:06:32] } 23... a5?! { [%eval 2.97] } { Inaccuracy. c5 was best. } { [%clk 0:04:26] } 24. Rfc1 { [%eval 2.72] [%clk 0:06:02] } 24... Qe7 { [%eval 3.25] [%clk 0:03:27] } 25. Qd1?! { [%eval 2.12] } { Inaccuracy. a4 was best. } { [%clk 0:05:57] } 25... a4?! { [%eval 3.11] } { Inaccuracy. h5 was best. } { [%clk 0:02:32] } 26. d6? { [%eval 1.62] } { Mistake. Bxa4 was best. } { [%clk 0:05:35] } 26... Qxd6?? { [%eval 4.76] } { Blunder. cxd6 was best. } { [%clk 0:02:03] } 27. Rxc7+ { [%eval 4.63] [%clk 0:05:32] } 27... Qxc7 { [%eval 4.61] [%clk 0:01:03] } 28. Rxc7+ { [%eval 4.64] [%clk 0:05:11] } 28... Rxc7 { [%eval 5.0] [%clk 0:01:06] } 29. Bxa4?? { [%eval 0.0] } { Blunder. Qd6 was best. } { [%clk 0:05:09] } 29... Nxa4 { [%eval 0.0] [%clk 0:01:07] } 30. Qxa4 { [%eval 0.0] [%clk 0:05:10] } 30... Rff7?? { [%eval 1.59] } { Blunder. Rd8 was best. } { [%clk 0:01:10] } 31. Qe8?! { [%eval 0.89] } { Inaccuracy. Qb5 was best. } { [%clk 0:05:02] } 31... Rfe7 { [%eval 0.75] [%clk 0:01:13] } 32. Qb5 { [%eval 0.79] [%clk 0:04:27] } 32... Kg7?! { [%eval 1.46] } { Inaccuracy. g5 was best. } { [%clk 0:01:04] } 33. a4 { [%eval 1.36] [%clk 0:04:28] } 33... Kf6 { [%eval 1.39] [%clk 0:01:04] } 34. b4? { [%eval 0.0] } { Mistake. Qb6+ was best. } { [%clk 0:04:29] } 34... Red7 { [%eval 0.0] [%clk 0:01:03] } 35. a5 { [%eval 0.0] [%clk 0:03:42] } 35... h5 { [%eval 0.0] [%clk 0:00:53] } 36. Qa4?? { [%eval -8.83] } { Blunder. Qf1 was best. } { [%clk 0:03:19] } 36... Rc1+ { [%eval -8.66] [%clk 0:00:48] } 37. Kh2 { [%eval -8.48] [%clk 0:03:21] } 37... Rdd1 { [%eval -8.32] [%clk 0:00:51] } 38. g4 { [%eval -9.77] [%clk 0:03:10] } 38... hxg4 { [%eval -9.94] [%clk 0:00:26] } 39. hxg4 { [%eval -9.07] [%clk 0:03:13] } 39... Kg5?? { [%eval -2.06] } { Blunder. Rd2 was best. } { [%clk 0:00:27] } 40. Qe8?? { [%eval -10.05] } { Blunder. Kh3 was best. } { [%clk 0:03:04] } 40... f3?? { [%eval 3.61] } { Blunder. Kxg4 was best. } { [%clk 0:00:20] } 41. Qxe5+ { [%eval 3.37] [%clk 0:03:02] } 41... Kh4?! { [%eval 4.74] } { Inaccuracy. Kxg4 was best. } { [%clk 0:00:19] } 42. Qg3+ { [%eval 4.32] [%clk 0:03:00] } 42... Kg5 { [%eval 4.46] [%clk 0:00:23] } 43. Qxf3 { [%eval 4.54] [%clk 0:02:31] } 43... Rb1 { [%eval 4.84] [%clk 0:00:19] } 44. Qe3+?! { [%eval 3.64] } { Inaccuracy. e5 was best. } { [%clk 0:02:16] } 44... Kh4?! { [%eval 4.61] } { Inaccuracy. Kxg4 was best. } { [%clk 0:00:18] } 45. Qg3+ { [%eval 4.9] [%clk 0:02:04] } 45... Kg5 { [%eval 4.74] [%clk 0:00:21] } 46. f4+ { [%eval 4.69] [%clk 0:02:03] } 46... Kf6 { [%eval 4.98] [%clk 0:00:23] } 47. Qc3+ { [%eval 4.49] [%clk 0:01:53] } 47... Kf7 { [%eval 4.84] [%clk 0:00:25] } 48. Kg3 { [%eval 4.65] [%clk 0:01:47] } 48... Rdc1 { [%eval 5.15] [%clk 0:00:24] } 49. Qd2 { [%eval 4.77] [%clk 0:01:29] } 49... Rg1+ { [%eval 6.05] [%clk 0:00:23] } 50. Kh4 { [%eval 6.06] [%clk 0:01:30] } 50... Rh1+ { [%eval 6.45] [%clk 0:00:26] } 51. Kg5 { [%eval 6.52] [%clk 0:01:32] } 51... Rhd1 { [%eval 6.77] [%clk 0:00:24] } 52. Qa2+ { [%eval 6.7] [%clk 0:01:28] } 52... Kg7?? { [%eval #8] } { Checkmate is now unavoidable. Ke7 was best. } { [%clk 0:00:26] } 53. f5? { [%eval 9.38] } { Lost forced checkmate sequence. Qe6 was best. } { [%clk 0:01:07] } 53... gxf5 { [%eval 9.33] [%clk 0:00:26] } 54. exf5 { [%eval 18.8] [%clk 0:01:09] } 54... Rxb4?! { [%eval #9] } { Checkmate is now unavoidable. Kf8 was best. } { [%clk 0:00:23] } 55. Qe6?! { [%eval 57.54] } { Lost forced checkmate sequence. f6+ was best. } { [%clk 0:00:56] } 55... Rdd4?! { [%eval #4] } { Checkmate is now unavoidable. Rxg4+ was best. } { [%clk 0:00:26] } 56. f6+ { [%eval #3] [%clk 0:00:56] } 56... Kf8 { [%eval #2] [%clk 0:00:23] } 57. f7?? { [%eval 0.0] } { Lost forced checkmate sequence. Qe7+ was best. } { [%clk 0:00:56] } 57... Rxg4+ { [%eval 0.0] [%clk 0:00:24] } 58. Qxg4 { [%eval 0.0] [%clk 0:00:46] } 58... Rxg4+ { [%eval 0.0] [%clk 0:00:28] } 59. Kxg4 { [%eval 0.0] [%clk 0:00:50] } 59... Kxf7 { [%eval 0.0] [%clk 0:00:32] } 60. Kf4 { [%eval 0.0] [%clk 0:00:54] } 60... Ke6 { [%eval 0.0] [%clk 0:00:35] } 61. Ke4 { [%eval 0.0] [%clk 0:00:58] } 61... Kd6 { [%eval 0.0] [%clk 0:00:39] } 62. Kd4 { [%eval 0.0] [%clk 0:01:02] } 62... Kc6 { [%eval 0.0] [%clk 0:00:41] } 63. Kc4 { [%eval 0.0] [%clk 0:01:05] } 63... Kc7 { [%eval 0.0] [%clk 0:00:41] } 64. Kb5 { [%eval 0.0] [%clk 0:01:06] } 64... Kb8 { [%eval 0.0] [%clk 0:00:43] } 65. a6 { [%eval 0.0] [%clk 0:00:57] } 65... bxa6+ { [%eval 0.0] [%clk 0:00:46] } 66. Kxa6 { [%eval 0.0] [%clk 0:01:00] } 1/2-1/2