Event: World Olympiad PwD 2023
Site: Belgrade, Serbia
Date: 2023-02-01
White: Koessler, Wolfgang
WhiteElo: 1746
Black: Mamarajabov, Sardorbek
BlackElo: 1712
Result: 1/2-1/2
ECO: B43
Opening: Sicilian Defense: Kan Variation, Knight Variation
Variant: Standard

1. e4 { [%eval 0.36] [%clk 1:30:56] } 1... c5 { [%eval 0.32] [%clk 1:30:41] } 2. Nf3 { [%eval 0.0] [%clk 1:31:15] } 2... e6 { [%eval 0.34] [%clk 1:31:00] } 3. Nc3 { [%eval 0.16] [%clk 1:30:01] } 3... a6 { [%eval 0.52] [%clk 1:31:19] } 4. d4 { [%eval 0.45] [%clk 1:30:16] } 4... cxd4 { [%eval 0.13] [%clk 1:31:43] } 5. Nxd4 { [%eval 0.37] [%clk 1:30:38] } 5... Qc7 { [%eval 0.24] [%clk 1:31:54] } 6. g3 { [%eval 0.0] [%clk 1:29:41] } 6... Bb4 { [%eval 0.16] [%clk 1:30:38] } 7. Ne2 { [%eval -0.15] [%clk 1:25:40] } 7... Nf6 { [%eval 0.0] [%clk 1:28:56] } 8. Bg2 { [%eval -0.13] [%clk 1:25:56] } 8... Nc6?! { [%eval 0.94] } { Inaccuracy. Be7 was best. } { [%clk 1:28:17] } 9. O-O?! { [%eval -0.1] } { Inaccuracy. Bf4 was best. } { [%clk 1:25:59] } 9... Bc5 { [%eval 0.27] [%clk 1:22:40] } 10. h3?! { [%eval -0.31] } { Inaccuracy. Na4 was best. } { [%clk 1:21:24] } 10... b5? { [%eval 0.83] } { Mistake. O-O was best. } { [%clk 1:10:50] } 11. Kh2? { [%eval -0.68] } { Mistake. e5 was best. } { [%clk 1:16:06] } 11... Bb7 { [%eval -0.65] [%clk 1:08:00] } 12. f4?! { [%eval -1.71] } { Inaccuracy. Nf4 was best. } { [%clk 1:00:19] } 12... h5 { [%eval -1.82] [%clk 1:06:12] } 13. Bf3 { [%eval -2.26] [%clk 0:52:15] } 13... Na5?! { [%eval -1.16] } { Inaccuracy. Rd8 was best. } { [%clk 0:45:47] } 14. Qd3 { [%eval -1.13] [%clk 0:48:05] } 14... Rc8 { [%eval -0.93] [%clk 0:35:40] } 15. Kg2 { [%eval -1.31] [%clk 0:31:35] } 15... b4?! { [%eval -0.42] } { Inaccuracy. d6 was best. } { [%clk 0:31:35] } 16. e5 { [%eval -0.54] [%clk 0:27:31] } 16... bxc3 { [%eval -0.63] [%clk 0:23:25] } 17. exf6 { [%eval -0.47] [%clk 0:27:55] } 17... gxf6 { [%eval -0.43] [%clk 0:23:26] } 18. Qxc3 { [%eval -0.53] [%clk 0:25:12] } 18... Be7 { [%eval -0.28] [%clk 0:21:22] } 19. Qxc7 { [%eval -0.46] [%clk 0:22:11] } 19... Rxc7 { [%eval -0.4] [%clk 0:21:25] } 20. Bxb7 { [%eval -0.7] [%clk 0:22:16] } 20... Nxb7 { [%eval -0.93] [%clk 0:21:34] } 21. c3 { [%eval -0.87] [%clk 0:22:20] } 21... f5 { [%eval -0.76] [%clk 0:13:07] } 22. Be3 { [%eval -1.03] [%clk 0:20:31] } 22... Nd6 { [%eval -0.72] [%clk 0:13:26] } 23. b3 { [%eval -0.69] [%clk 0:15:20] } 23... Ne4 { [%eval -0.58] [%clk 0:13:40] } 24. c4 { [%eval -0.79] [%clk 0:15:13] } 24... Rg8 { [%eval -0.56] [%clk 0:13:42] } 25. Kf3 { [%eval -0.52] [%clk 0:15:24] } 25... Bc5 { [%eval -0.57] [%clk 0:08:23] } 26. Rg1 { [%eval -0.63] [%clk 0:15:03] } 26... Ke7?! { [%eval -0.06] } { Inaccuracy. Bxe3 was best. } { [%clk 0:05:26] } 27. Rad1?! { [%eval -0.65] } { Inaccuracy. g4 was best. } { [%clk 0:13:54] } 27... d6?! { [%eval 0.27] } { Inaccuracy. Bxe3 was best. } { [%clk 0:05:02] } 28. g4 { [%eval 0.27] [%clk 0:09:11] } 28... hxg4+ { [%eval 0.26] [%clk 0:04:26] } 29. hxg4 { [%eval 0.22] [%clk 0:09:34] } 29... Rh8 { [%eval 0.33] [%clk 0:03:35] } 30. Bxc5 { [%eval 0.04] [%clk 0:08:06] } 30... dxc5 { [%eval 0.05] [%clk 0:03:38] } 31. gxf5 { [%eval 0.01] [%clk 0:08:11] } 31... exf5 { [%eval 0.02] [%clk 0:04:01] } 32. Rd5 { [%eval 0.05] [%clk 0:05:28] } 32... Rh3+ { [%eval 0.0] [%clk 0:01:09] } 33. Kg2?! { [%eval -0.89] } { Inaccuracy. Ng3 was best. } { [%clk 0:05:46] } 33... Re3 { [%eval -0.63] [%clk 0:01:31] } 34. Kf1 { [%eval -0.77] [%clk 0:05:11] } 34... Kf6 { [%eval -0.51] [%clk 0:01:27] } 35. Rg2?! { [%eval -1.32] } { Inaccuracy. Rg8 was best. } { [%clk 0:04:25] } 35... Rc8 { [%eval -1.22] [%clk 0:01:04] } 36. Rh2 { [%eval -1.32] [%clk 0:02:48] } 36... Rg8?! { [%eval -0.61] } { Inaccuracy. a5 was best. } { [%clk 0:01:03] } 37. Rh5?? { [%eval -2.44] } { Blunder. Rh6+ was best. } { [%clk 0:01:53] } 37... Ng3+?? { [%eval 2.74] } { Blunder. Rf3+ was best. } { [%clk 0:00:40] } 38. Nxg3 { [%eval 2.77] [%clk 0:02:11] } 38... Rgxg3 { [%eval 2.8] [%clk 0:01:03] } 39. Rhxf5+ { [%eval 2.85] [%clk 0:02:15] } 39... Ke6 { [%eval 2.8] [%clk 0:00:57] } 40. Rfe5+ { [%eval 2.82] [%clk 0:01:50] } 40... Rxe5 { [%eval 2.88] [%clk 0:00:47] } 41. Rxe5+ { [%eval 2.98] [%clk 0:00:55] } 41... Kd6 { [%eval 2.81] [%clk 0:01:09] } 42. Rf5 { [%eval 2.87] [%clk 0:27:31] } 42... Ke7 { [%eval 3.15] [%clk 0:31:06] } 43. Rxc5 { [%eval 3.51] [%clk 0:24:35] } 43... Rf3+ { [%eval 3.39] [%clk 0:30:53] } 44. Ke2 { [%eval 3.27] [%clk 0:24:51] } 44... Rxf4 { [%eval 3.18] [%clk 0:31:12] } 45. Rc6 { [%eval 3.7] [%clk 0:25:07] } 45... a5 { [%eval 3.58] [%clk 0:29:53] } 46. Rc5?! { [%eval 2.24] } { Inaccuracy. Ra6 was best. } { [%clk 0:24:20] } 46... a4 { [%eval 2.01] [%clk 0:29:56] } 47. Ra5 { [%eval 2.17] [%clk 0:20:28] } 47... axb3 { [%eval 2.16] [%clk 0:30:16] } 48. axb3 { [%eval 2.18] [%clk 0:20:54] } 48... Kd6 { [%eval 2.5] [%clk 0:27:56] } 49. Ke3 { [%eval 2.37] [%clk 0:21:10] } 49... Rh4 { [%eval 2.55] [%clk 0:28:10] } 50. Rf5 { [%eval 2.42] [%clk 0:20:40] } 50... Ke6 { [%eval 2.56] [%clk 0:25:55] } 51. Rb5?? { [%eval 0.65] } { Blunder. Rf4 was best. } { [%clk 0:19:05] } 51... Kd6?? { [%eval 2.48] } { Blunder. f5 was best. } { [%clk 0:26:02] } 52. Rf5 { [%eval 2.25] [%clk 0:18:02] } 52... Ke6 { [%eval 2.67] [%clk 0:26:16] } 53. Rf3 { [%eval 2.1] [%clk 0:18:23] } 53... f5 { [%eval 2.21] [%clk 0:23:28] } 54. Kd3 { [%eval 2.13] [%clk 0:18:33] } 54... Ke5 { [%eval 2.45] [%clk 0:18:55] } 55. Re3+ { [%eval 2.13] [%clk 0:14:58] } 55... Kd6 { [%eval 2.18] [%clk 0:18:07] } 56. b4 { [%eval 2.55] [%clk 0:15:07] } 56... Rg4?! { [%eval 3.51] } { Inaccuracy. Rh8 was best. } { [%clk 0:16:59] } 57. b5 { [%eval 3.29] [%clk 0:12:56] } 57... Rg1 { [%eval 3.91] [%clk 0:08:42] } 58. Rf3 { [%eval 4.28] [%clk 0:11:11] } 58... Ke5 { [%eval 3.65] [%clk 0:04:48] } 59. c5 { [%eval 5.16] [%clk 0:09:48] } 59... Rc1 { [%eval 5.03] [%clk 0:03:54] } 60. c6 { [%eval 5.11] [%clk 0:09:54] } 60... Rc5 { [%eval 5.29] [%clk 0:03:59] } 61. Rf2 { [%eval 5.31] [%clk 0:06:02] } 61... Rxb5 { [%eval 5.14] [%clk 0:04:12] } 62. c7 { [%eval 5.13] [%clk 0:05:45] } 62... Rd5+? { [%eval 9.37] } { Mistake. Rc5 was best. } { [%clk 0:00:41] } 63. Kc4 { [%eval 9.44] [%clk 0:05:33] } 63... Rd4+ { [%eval 9.52] [%clk 0:00:53] } 64. Kb5 { [%eval 8.74] [%clk 0:05:12] } 64... Rd5+ { [%eval 9.64] [%clk 0:00:55] } 65. Kb6 { [%eval 8.45] [%clk 0:05:19] } 65... Rd6+ { [%eval 8.81] [%clk 0:01:14] } 66. Kb7?? { [%eval 0.0] } { Blunder. Kb5 was best. } { [%clk 0:04:29] } 66... Rd7 { [%eval 0.0] [%clk 0:01:38] } 67. Kb8 { [%eval 0.0] [%clk 0:04:48] } 67... Rxc7 { [%eval 0.0] [%clk 0:01:59] } 68. Kxc7 { [%eval 0.0] [%clk 0:05:11] } 68... f4 { [%eval 0.0] [%clk 0:02:12] } 69. Kc6 { [%eval 0.0] [%clk 0:02:46] } 69... Ke4 { [%eval 0.0] [%clk 0:02:36] } 70. Kc5 { [%eval 0.0] [%clk 0:02:39] } 70... Ke3 { [%eval 0.0] [%clk 0:03:00] } 71. Rf1 { [%eval 0.0] [%clk 0:02:37] } 71... f3 { [%eval 0.0] [%clk 0:03:25] } 72. Ra1 { [%eval 0.0] [%clk 0:02:56] } 72... f2 { [%eval 0.0] [%clk 0:03:46] } 73. Kc4 { [%eval 0.0] [%clk 0:02:42] } 73... Ke2 { [%eval 0.0] [%clk 0:04:10] } 74. Ra2+ { [%eval 0.0] [%clk 0:03:04] } 74... Ke3 { [%eval 0.0] [%clk 0:04:16] } 75. Ra1 { [%eval 0.0] [%clk 0:03:13] } 75... Ke2 { [%eval 0.0] [%clk 0:04:41] } 76. Kd4 { [%eval 0.0] } 1/2-1/2