Event: Round 7: Kummerow, Heiko - Riabtsev, Ivan
Date: 2025-06-09
White: Kummerow, Heiko
WhiteTitle: FM
WhiteElo: 2163
Black: Riabtsev, Ivan
BlackElo: 2036
Result: 1/2-1/2
ECO: B33
Opening: Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:57] } 1... c5 { [%eval 0.25] [%clk 1:27:13] } 2. Nf3 { [%eval 0.2] [%clk 1:31:19] } 2... Nc6 { [%eval 0.25] [%clk 1:27:40] } 3. d4 { [%eval 0.27] [%clk 1:31:44] } 3... cxd4 { [%eval 0.27] [%clk 1:28:07] } 4. Nxd4 { [%eval 0.21] [%clk 1:32:10] } 4... Nf6 { [%eval 0.19] [%clk 1:28:33] } 5. Nc3 { [%eval 0.26] [%clk 1:32:35] } 5... e5 { [%eval 0.34] [%clk 1:28:59] } 6. Ndb5 { [%eval 0.31] [%clk 1:32:50] } 6... d6 { [%eval 0.34] [%clk 1:29:22] } 7. Bg5 { [%eval 0.22] [%clk 1:32:57] } 7... a6 { [%eval 0.3] [%clk 1:29:28] } 8. Na3 { [%eval 0.17] [%clk 1:33:19] } 8... b5 { [%eval 0.15] [%clk 1:29:55] } 9. Nd5 { [%eval 0.26] [%clk 1:31:55] } 9... Be7 { [%eval 0.35] [%clk 1:30:18] } 10. Bxf6 { [%eval 0.28] [%clk 1:32:18] } 10... Bxf6 { [%eval 0.35] [%clk 1:30:47] } 11. c3 { [%eval 0.3] [%clk 1:32:35] } 11... O-O { [%eval 0.29] [%clk 1:31:12] } 12. Nc2 { [%eval 0.36] [%clk 1:32:15] } 12... Rb8 { [%eval 0.48] [%clk 1:31:35] } 13. Be2 { [%eval 0.04] [%clk 1:29:40] } 13... a5 { [%eval 0.2] [%clk 1:30:10] } 14. O-O { [%eval 0.16] [%clk 1:28:31] } 14... Bg5 { [%eval 0.16] [%clk 1:30:36] } 15. Na3 { [%eval 0.08] [%clk 1:17:55] } 15... Na7 { [%eval 0.11] [%clk 0:46:53] } 16. Qc2 { [%eval 0.0] [%clk 1:06:06] } 16... Be6 { [%eval 0.0] [%clk 0:40:50] } 17. Rad1 { [%eval -0.04] [%clk 1:06:13] } 17... Qd7 { [%eval 0.05] [%clk 0:39:39] } 18. g3 { [%eval -0.01] [%clk 0:50:28] } 18... Bd8 { [%eval 0.06] [%clk 0:24:19] } 19. Qd2 { [%eval 0.06] [%clk 0:46:55] } 19... Bb6 { [%eval 0.27] [%clk 0:14:38] } 20. Nc2 { [%eval 0.2] [%clk 0:43:54] } 20... Nc8 { [%eval 0.14] [%clk 0:12:54] } 21. a3 { [%eval 0.01] [%clk 0:39:25] } 21... Ba7 { [%eval 0.02] [%clk 0:12:16] } 22. Bf3 { [%eval -0.22] [%clk 0:33:04] } 22... Kh8 { [%eval -0.16] [%clk 0:12:03] } 23. Nce3 { [%eval -0.25] [%clk 0:29:05] } 23... Rd8 { [%eval -0.11] [%clk 0:10:47] } 24. Qe2 { [%eval -0.16] [%clk 0:24:42] } 24... Ne7 { [%eval -0.11] [%clk 0:07:54] } 25. Rd2 { [%eval -0.27] [%clk 0:20:00] } 25... Bxe3 { [%eval 0.01] [%clk 0:07:00] } 26. Nxe3 { [%eval 0.0] [%clk 0:20:16] } 26... Qc6 { [%eval 0.0] [%clk 0:06:56] } 27. Bg2 { [%eval 0.01] [%clk 0:15:58] } 27... Qc5 { [%eval -0.03] [%clk 0:07:09] } 28. h4 { [%eval -0.01] [%clk 0:14:07] } 28... f6 { [%eval 0.35] [%clk 0:05:46] } 29. Kh2 { [%eval 0.35] [%clk 0:14:18] } 29... Rb7 { [%eval 0.25] [%clk 0:05:07] } 30. Bh3 { [%eval 0.26] [%clk 0:14:00] } 30... Bb3 { [%eval 0.19] [%clk 0:04:28] } 31. h5 { [%eval 0.13] [%clk 0:13:27] } 31... g6?! { [%eval 1.14] } { Inaccuracy. h6 was best. } { [%clk 0:01:51] } 32. Qf3 { [%eval 1.23] [%clk 0:10:15] } 32... Ng8 { [%eval 1.34] [%clk 0:01:22] } 33. hxg6?! { [%eval 0.77] } { Inaccuracy. Rh1 was best. } { [%clk 0:08:02] } 33... hxg6 { [%eval 0.83] [%clk 0:01:50] } 34. Qg4 { [%eval 0.29] [%clk 0:08:11] } 34... Ne7 { [%eval 0.35] [%clk 0:00:36] } 35. Qh4+ { [%eval 0.06] [%clk 0:06:07] } 35... Kg7 { [%eval 0.09] [%clk 0:01:05] } 36. Ng4 { [%eval 0.03] [%clk 0:06:28] } 36... Ng8 { [%eval 0.09] [%clk 0:01:26] } 37. f4 { [%eval -0.28] [%clk 0:06:12] } 37... exf4?! { [%eval 0.79] } { Inaccuracy. Rf8 was best. } { [%clk 0:00:53] } 38. gxf4 { [%eval 0.67] [%clk 0:05:43] } 38... Bc4? { [%eval 2.36] } { Mistake. Re8 was best. } { [%clk 0:00:38] } 39. Rg1 { [%eval 2.41] [%clk 0:05:47] } 39... Re8 { [%eval 2.41] [%clk 0:00:32] } 40. e5?! { [%eval 1.42] } { Inaccuracy. b4 was best. } { [%clk 0:01:51] } 40... dxe5 { [%eval 1.3] [%clk 0:00:43] } 41. Nxf6?? { [%eval -1.43] } { Blunder. Rdg2 was best. } { [%clk 0:01:21] } 41... Nxf6 { [%eval -1.23] [%clk 0:00:34] } 42. Bf5 { [%eval -1.48] [%clk 0:07:05] } 42... Qxg1+? { [%eval 0.0] } { Mistake. Bf7 was best. } { [%clk 0:02:19] } 43. Kxg1 { [%eval 0.0] [%clk 0:07:27] } 43... gxf5 { [%eval 0.0] [%clk 0:02:48] } 44. Rd6?? { [%eval -3.27] } { Blunder. Rg2+ was best. } { [%clk 0:05:05] } 44... Be6 { [%eval -3.25] [%clk 0:01:34] } 45. fxe5 { [%eval -3.15] [%clk 0:04:45] } 45... Ne4 { [%eval -3.07] [%clk 0:01:53] } 46. Rd8 { [%eval -3.51] [%clk 0:02:14] } 46... Rxd8 { [%eval -3.42] [%clk 0:02:10] } 47. Qxd8 { [%eval -3.35] [%clk 0:02:42] } 47... Rd7 { [%eval -3.26] [%clk 0:01:35] } 48. Qb6?! { [%eval -5.1] } { Inaccuracy. Qe8 was best. } { [%clk 0:02:36] } 48... Rd1+ { [%eval -4.9] [%clk 0:01:46] } 49. Kg2 { [%eval -4.72] [%clk 0:02:54] } 49... Rd2+?! { [%eval -3.28] } { Inaccuracy. Ng5 was best. } { [%clk 0:01:54] } 50. Kf3 { [%eval -3.09] [%clk 0:02:24] } 50... Bd7? { [%eval -1.28] } { Mistake. Ng5+ was best. } { [%clk 0:01:10] } 51. e6? { [%eval -2.68] } { Mistake. Qxa5 was best. } { [%clk 0:02:27] } 51... Bxe6 { [%eval -2.64] [%clk 0:01:22] } 52. Qxb5 { [%eval -2.61] [%clk 0:02:20] } 52... Rd5 { [%eval -2.66] [%clk 0:01:28] } 53. Qb7+ { [%eval -3.16] [%clk 0:02:08] } 53... Kf6 { [%eval -3.08] [%clk 0:01:33] } 54. Qb8 { [%eval -3.77] [%clk 0:02:10] } 54... Ng5+ { [%eval -3.22] [%clk 0:01:08] } 55. Kf4 { [%eval -3.4] [%clk 0:01:55] } 55... Nf7?! { [%eval -2.13] } { Inaccuracy. Rd3 was best. } { [%clk 0:01:06] } 56. b4 { [%eval -2.01] [%clk 0:01:59] } 56... axb4 { [%eval -1.98] [%clk 0:01:30] } 57. axb4 { [%eval -1.55] [%clk 0:02:21] } 57... Re5 { [%eval -1.57] [%clk 0:01:09] } 58. b5 { [%eval -1.58] [%clk 0:02:32] } 58... Re4+ { [%eval -1.21] [%clk 0:01:38] } 59. Kf3? { [%eval -2.88] } { Mistake. Kg3 was best. } { [%clk 0:02:46] } 59... Ne5+ { [%eval -2.86] [%clk 0:01:37] } 60. Kf2 { [%eval -3.39] [%clk 0:02:07] } 60... Ng4+ { [%eval -3.18] [%clk 0:01:49] } 61. Kg3 { [%eval -3.36] [%clk 0:02:08] } 61... f4+?! { [%eval -2.19] } { Inaccuracy. Kg5 was best. } { [%clk 0:00:37] } 62. Kf3? { [%eval -3.74] } { Mistake. Qxf4+ was best. } { [%clk 0:02:36] } 62... Rc4?? { [%eval -0.06] } { Blunder. Kf5 was best. } { [%clk 0:00:37] } 63. Qh8+ { [%eval -0.22] [%clk 0:02:48] } 63... Kf5 { [%eval 0.0] [%clk 0:00:38] } 64. Qh5+ { [%eval 0.0] [%clk 0:02:35] } 64... Kf6 { [%eval 0.0] [%clk 0:01:04] } 65. Ke2 { [%eval 0.0] [%clk 0:02:51] } 65... Ne5 { [%eval 0.0] [%clk 0:00:42] } 66. Qh4+?? { [%eval -2.64] } { Blunder. Qh8+ was best. } { [%clk 0:02:25] } 66... Kf5?? { [%eval 0.0] } { Blunder. Kg6 was best. } { [%clk 0:00:43] } 67. Qh5+ { [%eval 0.0] [%clk 0:01:54] } 67... Kf6 { [%eval 0.0] [%clk 0:01:11] } 68. Kd2 { [%eval -0.19] [%clk 0:02:04] } 68... f3 { [%eval 0.0] [%clk 0:01:01] } 69. Qh8+ { [%eval 0.0] [%clk 0:02:12] } 69... Kf5 { [%eval 0.0] [%clk 0:01:11] } 70. Qh2?? { [%eval -2.77] } { Blunder. Qh7+ was best. } { [%clk 0:02:22] } 70... Rf4?? { [%eval 0.0] } { Blunder. Re4 was best. } { [%clk 0:00:47] } 71. Qh5+ { [%eval 0.0] [%clk 0:01:58] } 71... Kf6 { [%eval 0.0] [%clk 0:00:38] } 72. Ke3?? { [%eval -2.84] } { Blunder. Qh8+ was best. } { [%clk 0:01:43] } 72... Rf5 { [%eval -2.79] [%clk 0:00:43] } 73. Qh6+ { [%eval -2.87] [%clk 0:01:15] } 73... Ng6? { [%eval -1.16] } { Mistake. Kf7 was best. } { [%clk 0:00:39] } 74. Kf2 { [%eval -1.1] [%clk 0:01:16] } 74... Rxb5?! { [%eval -0.02] } { Inaccuracy. Bd5 was best. } { [%clk 0:00:39] } 75. Kxf3 { [%eval -0.03] [%clk 0:01:41] } 75... Rc5 { [%eval -0.04] [%clk 0:00:50] } 76. Qe3 { [%eval -0.15] [%clk 0:01:51] } 76... Rf5+ { [%eval -0.04] [%clk 0:01:11] } 77. Kg3 { [%eval -0.12] [%clk 0:01:52] } 77... Rg5+ { [%eval -0.09] [%clk 0:01:20] } 78. Kf2 { [%eval -0.16] [%clk 0:02:05] } 78... Rf5+ { [%eval -0.07] [%clk 0:01:44] } 79. Kg3 { [%eval -0.05] [%clk 0:02:26] } 79... Rg5+ { [%eval -0.07] [%clk 0:01:39] } 80. Kf2 { [%eval -0.11] [%clk 0:02:53] } 80... Ne5 { [%eval -0.09] [%clk 0:02:05] } 81. Qd4 { [%eval -0.04] [%clk 0:03:03] } 81... Rg4 { [%eval -0.06] [%clk 0:02:15] } 82. Qd6 { [%eval -0.04] [%clk 0:02:17] } 82... Rf4+ { [%eval -0.06] [%clk 0:02:04] } 83. Ke2 { [%eval -0.1] [%clk 0:02:10] } 83... Re4+ { [%eval 0.0] [%clk 0:02:14] } 84. Kf2 { [%eval -0.14] [%clk 0:02:05] } 84... Rf4+ { [%eval -0.01] [%clk 0:01:51] } 85. Ke2 { [%eval 0.0] [%clk 0:02:31] } 85... Re4+ { [%eval 0.0] [%clk 0:01:28] } 86. Kf2 { [%eval -0.13] [%clk 0:03:00] } 86... Kf5 { [%eval -0.16] [%clk 0:00:41] } 87. Qc5 { [%eval -0.28] [%clk 0:02:23] } 87... Kf4 { [%eval -0.01] [%clk 0:00:47] } 88. Qf8+ { [%eval -0.11] [%clk 0:02:15] } 88... Bf5 { [%eval -0.01] [%clk 0:00:42] } 89. Qh6+ { [%eval -0.13] [%clk 0:01:49] } 89... Kg4 { [%eval -0.09] [%clk 0:01:07] } 90. Qg7+ { [%eval -0.18] [%clk 0:02:01] } 90... Ng6 { [%eval -0.01] [%clk 0:00:59] } 91. Qf6 { [%eval -0.17] [%clk 0:01:55] } 91... Nf4 { [%eval -0.1] [%clk 0:00:56] } 92. Qg7+ { [%eval -0.22] [%clk 0:02:04] } 92... Ng6 { [%eval -0.02] [%clk 0:01:19] } 93. Qf6 { [%eval -0.2] [%clk 0:02:30] } 93... Nf4 { [%eval -0.16] [%clk 0:00:51] } 94. Qg7+ { [%eval -0.22] [%clk 0:02:57] } 94... Bg6 { [%eval -0.06] [%clk 0:00:58] } 95. Qd7+ { [%eval -0.11] [%clk 0:02:48] } 95... Bf5 { [%eval 0.0] [%clk 0:01:01] } 96. Qg7+ { [%eval -0.13] [%clk 0:00:45] } 96... Bg6 { [%eval -0.05] [%clk 0:01:01] } 1/2-1/2