Event: Round 5: Grigoriy Oparin - Steven C Zierk
Date: 2023-12-28
White: Grigoriy Oparin
WhiteTitle: GM
Black: Steven C Zierk
BlackTitle: GM
Result: 1-0
ECO: B62
Opening: Sicilian Defense: Richter-Rauzer Variation, Vitolins Variation
Variant: Standard

1. e4 { [%eval 0.2] [%clk 1:29:20] } 1... c5 { [%eval 0.33] [%clk 1:30:00] } 2. Nf3 { [%eval 0.17] [%clk 1:29:20] } 2... d6 { [%eval 0.0] [%clk 1:30:00] } 3. d4 { [%eval 0.25] [%clk 1:29:20] } 3... cxd4 { [%eval 0.13] [%clk 1:30:00] } 4. Nxd4 { [%eval 0.27] [%clk 1:29:20] } 4... Nf6 { [%eval 0.3] [%clk 1:30:00] } 5. Nc3 { [%eval 0.21] [%clk 1:29:20] } 5... Nc6 { [%eval 0.47] [%clk 1:30:00] } 6. Bg5 { [%eval 0.0] [%clk 1:29:20] } 6... e6 { [%eval 0.23] [%clk 1:30:00] } 7. Bb5 { [%eval -0.01] [%clk 1:29:06] } 7... Bd7 { [%eval 0.11] [%clk 1:30:00] } 8. Qd3 { [%eval 0.28] [%clk 1:29:05] } 8... Be7 { [%eval 0.25] [%clk 1:30:00] } 9. O-O-O { [%eval 0.29] [%clk 1:28:34] } 9... Nxd4 { [%eval 0.41] [%clk 1:30:00] } 10. Bxd7+ { [%eval 0.24] [%clk 1:26:54] } 10... Nxd7 { [%eval 0.33] [%clk 1:30:00] } 11. Bxe7 { [%eval 0.35] [%clk 1:26:54] } 11... Kxe7 { [%eval 0.43] [%clk 1:30:00] } 12. Qxd4 { [%eval 0.42] [%clk 1:26:54] } 12... Qb6 { [%eval 0.27] [%clk 1:30:00] } 13. Qxb6 { [%eval -0.03] [%clk 1:15:10] } 13... Nxb6 { [%eval -0.06] [%clk 1:29:22] } 14. Rd4 { [%eval 0.03] [%clk 1:15:10] } 14... Rad8 { [%eval 0.25] [%clk 1:20:36] } 15. Rhd1 { [%eval 0.12] [%clk 1:14:24] } 15... Rd7 { [%eval 0.33] [%clk 1:13:12] } 16. a4 { [%eval 0.29] [%clk 0:59:15] } 16... a5 { [%eval 0.29] [%clk 1:05:10] } 17. b3 { [%eval 0.36] [%clk 0:53:46] } 17... g5 { [%eval 0.42] [%clk 0:56:44] } 18. Kb2 { [%eval 0.43] [%clk 0:47:58] } 18... f6 { [%eval 0.64] [%clk 0:48:19] } 19. g3 { [%eval 0.69] [%clk 0:39:06] } 19... g4 { [%eval 0.71] [%clk 0:39:20] } 20. h3 { [%eval 0.76] [%clk 0:37:14] } 20... h5 { [%eval 0.45] [%clk 0:38:37] } 21. Rh1 { [%eval 0.89] [%clk 0:37:14] } 21... Rdd8 { [%eval 0.77] [%clk 0:36:37] } 22. Nb5 { [%eval 0.28] [%clk 0:37:14] } 22... h4 { [%eval 0.26] [%clk 0:25:11] } 23. hxg4 { [%eval 0.28] [%clk 0:33:20] } 23... hxg3 { [%eval 0.32] [%clk 0:24:33] } 24. Rxh8 { [%eval 0.25] [%clk 0:33:20] } 24... Rxh8 { [%eval 0.27] [%clk 0:24:33] } 25. fxg3 { [%eval 0.28] [%clk 0:33:20] } 25... d5 { [%eval 0.27] [%clk 0:24:33] } 26. Nc3 { [%eval 0.18] [%clk 0:31:24] } 26... dxe4 { [%eval 0.22] [%clk 0:23:23] } 27. Rxe4 { [%eval 0.27] [%clk 0:31:24] } 27... Nd7 { [%eval 0.37] [%clk 0:17:47] } 28. Rc4 { [%eval 0.37] [%clk 0:26:51] } 28... Rg8 { [%eval 0.84] [%clk 0:16:23] } 29. Rc7 { [%eval 0.64] [%clk 0:18:30] } 29... Rxg4 { [%eval 0.58] [%clk 0:15:52] } 30. Rxb7 { [%eval 0.77] [%clk 0:18:30] } 30... f5? { [%eval 1.99] } { Mistake. Rxg3 was best. } { [%clk 0:11:50] } 31. Ne2 { [%eval 2.03] [%clk 0:17:13] } 31... Re4 { [%eval 2.16] [%clk 0:09:07] } 32. Nf4 { [%eval 2.31] [%clk 0:17:13] } 32... Re3 { [%eval 2.19] [%clk 0:09:07] } 33. Nd3?! { [%eval 1.03] } { Inaccuracy. Ra7 was best. } { [%clk 0:17:13] } 33... Kd6 { [%eval 1.31] [%clk 0:08:31] } 34. Ra7 { [%eval 1.34] [%clk 0:17:13] } 34... Rxg3?! { [%eval 2.42] } { Inaccuracy. Ne5 was best. } { [%clk 0:07:39] } 35. Ra6+ { [%eval 2.47] [%clk 0:17:13] } 35... Ke7 { [%eval 2.42] [%clk 0:07:39] } 36. Rxa5 { [%eval 2.37] [%clk 0:17:13] } 36... Re3?! { [%eval 3.53] } { Inaccuracy. Rg7 was best. } { [%clk 0:04:03] } 37. Ra8?! { [%eval 2.52] } { Inaccuracy. Ra7 was best. } { [%clk 0:16:14] } 37... Ne5 { [%eval 2.38] [%clk 0:03:06] } 38. Nxe5 { [%eval 2.38] [%clk 0:09:18] } 38... Rxe5 { [%eval 2.47] [%clk 0:03:06] } 39. a5 { [%eval 2.47] [%clk 0:09:18] } 39... f4 { [%eval 2.58] [%clk 0:02:50] } 40. a6 { [%eval 2.43] [%clk 0:09:18] } 40... f3 { [%eval 2.57] [%clk 0:01:07] } 41. a7 { [%eval 2.43] [%clk 0:08:41] } 41... Ra5 { [%eval 2.33] [%clk 0:00:23] } 42. Rh8 { [%eval 2.06] [%clk 0:08:41] } 42... f2 { [%eval 2.0] [%clk 0:29:16] } 43. Rh1 { [%eval 1.62] [%clk 0:38:41] } 43... Rxa7?! { [%eval 2.44] } { Inaccuracy. e5 was best. } { [%clk 0:28:43] } 44. Rf1 { [%eval 2.3] [%clk 0:38:41] } 44... e5 { [%eval 2.53] [%clk 0:28:43] } 45. Rxf2 { [%eval 2.04] [%clk 0:38:41] } 45... Ke6 { [%eval 2.42] [%clk 0:28:43] } 46. c4? { [%eval 0.79] } { Mistake. Re2 was best. } { [%clk 0:32:10] } 46... e4 { [%eval 0.74] [%clk 0:28:43] } 47. Kc3 { [%eval 0.66] [%clk 0:28:49] } 47... Ke5 { [%eval 0.8] [%clk 0:28:43] } 48. Rf8 { [%eval 0.83] [%clk 0:27:32] } 48... Re7 { [%eval 0.68] [%clk 0:27:25] } 49. Rd8 { [%eval 0.64] [%clk 0:22:34] } 49... Kf4 { [%eval 0.8] [%clk 0:16:19] } 50. Kd2 { [%eval 0.68] [%clk 0:22:34] } 50... Rb7?? { [%eval 3.03] } { Blunder. Re6 was best. } { [%clk 0:15:18] } 51. Rf8+ { [%eval 3.46] [%clk 0:22:22] } 51... Ke5 { [%eval 3.02] [%clk 0:15:18] } 52. Re8+ { [%eval 3.17] [%clk 0:22:22] } 52... Kd4 { [%eval 3.21] [%clk 0:15:01] } 53. Rd8+ { [%eval 2.64] [%clk 0:22:22] } 53... Kc5? { [%eval 4.36] } { Mistake. Ke5 was best. } { [%clk 0:10:50] } 54. Kc3 { [%eval 4.11] [%clk 0:22:22] } 54... Re7 { [%eval 4.52] [%clk 0:10:50] } 55. Rd2 { [%eval 4.35] [%clk 0:22:00] } 55... Kc6 { [%eval 4.65] [%clk 0:04:40] } 56. b4 { [%eval 4.66] [%clk 0:20:24] } 56... Rh7 { [%eval 4.93] [%clk 0:02:36] } 57. b5+ { [%eval 4.54] [%clk 0:18:06] } 57... Kc7 { [%eval 5.15] [%clk 0:02:36] } 58. Re2 { [%eval 4.85] [%clk 0:14:16] } 58... Re7 { [%eval 5.3] [%clk 0:02:36] } 59. c5 { [%eval 5.25] [%clk 0:10:29] } 59... Kc8 { [%eval 6.18] [%clk 0:02:20] } 60. Re3 { [%eval 5.19] [%clk 0:10:14] } 60... Rb7 { [%eval 6.46] [%clk 0:02:11] } 61. Kc4 { [%eval 6.12] [%clk 0:10:14] } 61... Re7 { [%eval 6.5] [%clk 0:02:11] } 62. Kd5 { [%eval 6.41] [%clk 0:09:52] } 62... Rb7 { [%eval 8.82] [%clk 0:02:11] } 63. Rxe4 { [%eval 9.31] [%clk 0:09:52] } 1-0