Event: Round 5: Roland Ollenberger - Kiril Kostov
Date: 2023-02-14
White: Roland Ollenberger
Black: Kiril Kostov
Result: 1/2-1/2
ECO: B53
Opening: Sicilian Defense: Chekhover Variation
Variant: Standard

1. e4 { [%eval 0.36] [%clk 1:30:16] } 1... c5 { [%eval 0.32] [%clk 1:30:43] } 2. Nf3 { [%eval 0.0] [%clk 1:30:40] } 2... d6 { [%eval 0.0] [%clk 1:31:07] } 3. d4 { [%eval 0.25] [%clk 1:31:06] } 3... cxd4 { [%eval 0.13] [%clk 1:31:31] } 4. Qxd4 { [%eval 0.0] [%clk 1:31:28] } 4... Nc6 { [%eval 0.26] [%clk 1:31:08] } 5. Qe3 { [%eval 0.0] [%clk 1:31:53] } 5... g6 { [%eval 0.04] [%clk 1:29:47] } 6. Nc3 { [%eval -0.06] [%clk 1:31:01] } 6... Bg7 { [%eval 0.21] [%clk 1:29:40] } 7. Be2 { [%eval 0.0] [%clk 1:28:47] } 7... Nf6 { [%eval 0.0] [%clk 1:27:45] } 8. h3 { [%eval -0.11] [%clk 1:28:35] } 8... O-O { [%eval 0.08] [%clk 1:23:46] } 9. O-O { [%eval -0.1] [%clk 1:26:46] } 9... a6 { [%eval 0.06] [%clk 1:10:58] } 10. Rd1 { [%eval 0.21] [%clk 1:19:18] } 10... Nd7 { [%eval 0.23] [%clk 1:10:59] } 11. Rb1 { [%eval 0.08] [%clk 1:16:20] } 11... b5 { [%eval 0.08] [%clk 1:07:17] } 12. a3?! { [%eval -0.47] } { Inaccuracy. b3 was best. } { [%clk 1:13:37] } 12... Nb6?! { [%eval 0.51] } { Inaccuracy. Bb7 was best. } { [%clk 0:50:32] } 13. b3 { [%eval 0.68] [%clk 1:10:06] } 13... e6?! { [%eval 1.35] } { Inaccuracy. Qc7 was best. } { [%clk 0:43:47] } 14. Qd2?! { [%eval 0.69] } { Inaccuracy. a4 was best. } { [%clk 0:51:47] } 14... Bb7 { [%eval 1.1] [%clk 0:42:48] } 15. Bb2 { [%eval 0.73] [%clk 0:49:26] } 15... Nc8? { [%eval 1.93] } { Mistake. Qe7 was best. } { [%clk 0:42:52] } 16. a4 { [%eval 1.53] [%clk 0:38:22] } 16... b4 { [%eval 1.72] [%clk 0:39:50] } 17. Na2 { [%eval 1.45] [%clk 0:38:42] } 17... Qa5?! { [%eval 2.41] } { Inaccuracy. Bxb2 was best. } { [%clk 0:39:17] } 18. Bxg7 { [%eval 2.46] [%clk 0:36:38] } 18... Kxg7 { [%eval 2.31] [%clk 0:39:25] } 19. Nd4?! { [%eval 1.63] } { Inaccuracy. c3 was best. } { [%clk 0:36:44] } 19... Nxd4 { [%eval 1.99] [%clk 0:35:29] } 20. Qxd4+ { [%eval 1.62] [%clk 0:37:08] } 20... e5 { [%eval 1.95] [%clk 0:35:45] } 21. Qxb4 { [%eval 2.17] [%clk 0:34:22] } 21... Qxb4 { [%eval 1.73] [%clk 0:35:38] } 22. Nxb4 { [%eval 2.22] [%clk 0:34:47] } 22... Bxe4 { [%eval 2.19] [%clk 0:35:58] } 23. a5 { [%eval 2.34] [%clk 0:30:57] } 23... Rd8 { [%eval 2.42] [%clk 0:34:29] } 24. Rd2 { [%eval 2.59] [%clk 0:28:25] } 24... Bb7 { [%eval 2.04] [%clk 0:32:39] } 25. Rbd1 { [%eval 1.9] [%clk 0:28:39] } 25... Rd7 { [%eval 2.59] [%clk 0:30:50] } 26. Bc4?! { [%eval 1.5] } { Inaccuracy. c4 was best. } { [%clk 0:28:15] } 26... Kf8 { [%eval 1.85] [%clk 0:29:51] } 27. Nd3 { [%eval 1.34] [%clk 0:26:19] } 27... Rc7 { [%eval 1.48] [%clk 0:28:55] } 28. Nb2?! { [%eval 0.82] } { Inaccuracy. Nb4 was best. } { [%clk 0:25:45] } 28... Rb8 { [%eval 1.35] [%clk 0:26:30] } 29. Na4 { [%eval 1.37] [%clk 0:23:48] } 29... Ke7 { [%eval 1.35] [%clk 0:25:17] } 30. g4 { [%eval 1.22] [%clk 0:17:22] } 30... h6 { [%eval 1.13] [%clk 0:24:10] } 31. Re1 { [%eval 0.88] [%clk 0:15:03] } 31... f5?! { [%eval 1.69] } { Inaccuracy. g5 was best. } { [%clk 0:22:45] } 32. Re3?! { [%eval 0.98] } { Inaccuracy. gxf5 was best. } { [%clk 0:12:26] } 32... f4 { [%eval 0.71] [%clk 0:20:46] } 33. Red3 { [%eval 1.11] [%clk 0:11:24] } 33... Be4 { [%eval 0.89] [%clk 0:13:51] } 34. Rc3 { [%eval 0.56] [%clk 0:11:12] } 34... Bb7 { [%eval 0.74] [%clk 0:13:40] } 35. Rcd3 { [%eval 1.01] [%clk 0:10:17] } 35... Rd7?? { [%eval 4.13] } { Blunder. Be4 was best. } { [%clk 0:11:11] } 36. f3?? { [%eval 1.92] } { Blunder. Nc5 was best. } { [%clk 0:10:24] } 36... Na7 { [%eval 2.09] [%clk 0:08:47] } 37. Nc5 { [%eval 2.08] [%clk 0:09:45] } 37... Rdd8 { [%eval 1.8] [%clk 0:08:30] } 38. Nxb7 { [%eval 1.5] [%clk 0:10:02] } 38... Rxb7 { [%eval 2.58] [%clk 0:08:54] } 39. Bxa6 { [%eval 2.09] [%clk 0:10:25] } 39... Rbb8 { [%eval 2.18] [%clk 0:07:11] } 40. Rc3?! { [%eval 1.01] } { Inaccuracy. Rd5 was best. } { [%clk 0:09:10] } 40... Nb5 { [%eval 0.99] [%clk 0:04:40] } 41. Rc4 { [%eval 1.33] [%clk 0:01:44] } 41... d5 { [%eval 1.13] [%clk 0:02:31] } 42. Ra4? { [%eval 0.0] } { Mistake. Rc6 was best. } { [%clk 0:29:07] } 42... Nc3 { [%eval 0.16] [%clk 0:29:42] } 43. Ra1 { [%eval 0.39] [%clk 0:28:55] } 43... e4 { [%eval 0.0] [%clk 0:29:47] } 44. Kf1 { [%eval 0.21] [%clk 0:20:23] } 44... Rd6 { [%eval 0.19] [%clk 0:27:31] } 45. Be2 { [%eval 0.22] [%clk 0:20:37] } 45... Rc6 { [%eval 0.0] [%clk 0:27:42] } 46. fxe4 { [%eval 0.0] [%clk 0:14:54] } 46... dxe4? { [%eval 1.5] } { Mistake. Nxe4 was best. } { [%clk 0:26:07] } 47. Bc4 { [%eval 1.36] [%clk 0:12:32] } 47... Rd6 { [%eval 1.57] [%clk 0:19:15] } 48. Rxd6?! { [%eval 0.53] } { Inaccuracy. Ke1 was best. } { [%clk 0:11:26] } 48... Kxd6 { [%eval 0.81] [%clk 0:19:36] } 49. a6 { [%eval 0.61] [%clk 0:11:24] } 49... Kc5 { [%eval 0.71] [%clk 0:19:38] } 50. a7 { [%eval 0.39] [%clk 0:08:41] } 50... Ra8 { [%eval 0.89] [%clk 0:19:57] } 51. Ra5+ { [%eval 0.79] [%clk 0:07:41] } 51... Kd4 { [%eval 0.89] [%clk 0:19:37] } 52. Be6? { [%eval -0.46] } { Mistake. Kf2 was best. } { [%clk 0:07:10] } 52... Ke3 { [%eval -0.94] [%clk 0:13:29] } 53. Bd7 { [%eval -0.64] [%clk 0:05:16] } 53... Kd2? { [%eval 0.62] } { Mistake. f3 was best. } { [%clk 0:13:39] } 54. Bc6 { [%eval 0.25] [%clk 0:03:42] } 54... e3 { [%eval 0.21] [%clk 0:14:03] } 55. Bf3 { [%eval 0.23] [%clk 0:03:04] } 55... e2+ { [%eval 0.24] [%clk 0:12:19] } 56. Bxe2 { [%eval 0.22] [%clk 0:03:26] } 56... Nxe2 { [%eval 0.14] [%clk 0:12:44] } 57. Rd5+ { [%eval 0.26] [%clk 0:03:45] } 57... Kxc2 { [%eval 0.1] [%clk 0:12:47] } 58. Kxe2 { [%eval 0.24] [%clk 0:04:09] } 58... Rxa7 { [%eval 0.24] [%clk 0:12:37] } 59. Rd6 { [%eval 0.22] [%clk 0:02:55] } 59... g5 { [%eval 0.24] [%clk 0:08:04] } 60. b4 { [%eval 0.0] [%clk 0:02:57] } 60... Re7+ { [%eval 0.01] [%clk 0:07:49] } 61. Kf2 { [%eval 0.0] [%clk 0:03:12] } 61... Kc3 { [%eval 0.44] [%clk 0:07:15] } 62. b5 { [%eval 0.12] [%clk 0:03:36] } 62... Kc4 { [%eval 0.07] [%clk 0:07:32] } 63. b6 { [%eval 0.0] [%clk 0:03:01] } 63... Rh7 { [%eval 0.32] [%clk 0:07:33] } 64. Rc6+ { [%eval 0.22] [%clk 0:02:52] } 64... Kd4 { [%eval 0.34] [%clk 0:06:10] } 65. Rc7 { [%eval 0.27] [%clk 0:03:11] } 65... Rh8 { [%eval 0.15] [%clk 0:06:37] } 66. b7 { [%eval 0.17] [%clk 0:02:49] } 66... Rb8 { [%eval 0.01] [%clk 0:07:03] } 67. Kf3 { [%eval 0.17] [%clk 0:02:43] } 67... Kd5?? { [%eval 2.95] } { Blunder. Ke5 was best. } { [%clk 0:05:13] } 68. Rh7?? { [%eval 0.18] } { Blunder. h4 was best. } { [%clk 0:01:50] } 68... Kd4?? { [%eval 3.49] } { Blunder. Ke5 was best. } { [%clk 0:05:07] } 69. Rd7+?? { [%eval 0.18] } { Blunder. h4 was best. } { [%clk 0:01:09] } 69... Ke5 { [%eval 0.17] [%clk 0:05:20] } 70. Rh7 { [%eval 0.16] [%clk 0:01:24] } 70... Kd4?? { [%eval 3.29] } { Blunder. Rd8 was best. } { [%clk 0:05:46] } 71. Re7?? { [%eval 0.3] } { Blunder. h4 was best. } { [%clk 0:01:28] } 71... Kd5 { [%eval 0.35] [%clk 0:06:07] } 72. h4 { [%eval 0.42] [%clk 0:01:27] } 72... Rf8?? { [%eval 5.32] } { Blunder. gxh4 was best. } { [%clk 0:01:34] } 73. Rf7?! { [%eval 3.84] } { Inaccuracy. hxg5 was best. } { [%clk 0:01:24] } 73... Rb8 { [%eval 3.9] [%clk 0:01:04] } 74. h5?? { [%eval 0.0] } { Blunder. Rf5+ was best. } { [%clk 0:00:46] } 74... Ke5 { [%eval 0.0] [%clk 0:00:44] } 75. Rh7 { [%eval 0.0] [%clk 0:01:04] } 75... Kd4 { [%eval 0.0] [%clk 0:01:12] } 76. Rd7+ { [%eval 0.0] [%clk 0:00:59] } 76... Ke5 { [%eval 0.0] [%clk 0:01:32] } 77. Rc7 { [%eval 0.07] [%clk 0:01:04] } 77... Kd4 { [%eval 0.0] [%clk 0:01:51] } 78. Re7 { [%eval 0.1] [%clk 0:01:24] } 78... Kd5 { [%eval 0.0] [%clk 0:01:44] } 79. Rf7 { [%eval 0.0] [%clk 0:01:01] } 79... Ke5 { [%eval 0.0] [%clk 0:01:58] } 80. Rh7 { [%eval 0.16] } 80... Kd4 { [%eval 0.0] } 81. Rxh6 { [%eval 0.0] } 81... Rxb7 { [%eval 0.0] } 82. Rg6 { [%eval 0.0] } 82... Rb3+ { [%eval 0.0] } 83. Kf2 { [%eval 0.0] } 83... Rb2+ { [%eval 0.0] } 1/2-1/2