Event: Round 6: Ostrovskiy, Aleksandr - Barbosa, Oliver
Date: 2024-11-10
White: Ostrovskiy, Aleksandr
WhiteTitle: IM
WhiteElo: 2398
Black: Barbosa, Oliver
BlackTitle: GM
BlackElo: 2446
Result: 0-1
ECO: B41
Opening: Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:18:35] } 1... c5 { [%eval 0.25] [%clk 1:21:08] } 2. Nf3 { [%eval 0.21] [%clk 1:18:35] } 2... e6 { [%eval 0.28] [%clk 1:21:29] } 3. d4 { [%eval 0.4] [%clk 1:12:43] } 3... cxd4 { [%eval 0.29] [%clk 1:21:43] } 4. Nxd4 { [%eval 0.23] [%clk 1:13:09] } 4... a6 { [%eval 0.42] [%clk 1:22:08] } 5. c4 { [%eval 0.21] [%clk 1:11:30] } 5... Nf6 { [%eval 0.23] [%clk 1:21:42] } 6. Nc3 { [%eval 0.22] [%clk 1:09:39] } 6... Qc7 { [%eval 0.55] [%clk 1:21:57] } 7. a3 { [%eval 0.52] [%clk 1:07:52] } 7... b6 { [%eval 0.61] [%clk 1:22:01] } 8. f4 { [%eval 0.52] [%clk 1:04:14] } 8... Bb7 { [%eval 0.47] [%clk 1:19:05] } 9. Bd3 { [%eval 0.48] [%clk 1:02:26] } 9... Nc6 { [%eval 0.51] [%clk 1:18:42] } 10. Nxc6 { [%eval 0.5] [%clk 1:02:07] } 10... Qxc6 { [%eval 0.54] [%clk 1:18:53] } 11. Qe2 { [%eval 0.52] [%clk 1:02:28] } 11... Bc5 { [%eval 0.45] [%clk 1:18:48] } 12. Be3 { [%eval 0.52] [%clk 1:02:14] } 12... h5 { [%eval 0.48] [%clk 1:16:05] } 13. Bxc5 { [%eval 0.52] [%clk 0:56:28] } 13... Qxc5 { [%eval 0.43] [%clk 1:11:48] } 14. e5 { [%eval 0.51] [%clk 0:50:03] } 14... Ng4 { [%eval 0.4] [%clk 1:10:07] } 15. Be4 { [%eval 0.44] [%clk 0:48:37] } 15... Bxe4 { [%eval 0.46] [%clk 1:03:12] } 16. Nxe4 { [%eval 0.43] [%clk 0:48:50] } 16... Qe3 { [%eval 0.49] [%clk 1:03:25] } 17. h3 { [%eval 0.52] [%clk 0:41:27] } 17... Qxe2+ { [%eval 0.56] [%clk 1:03:12] } 18. Kxe2 { [%eval 0.54] [%clk 0:41:52] } 18... Nh6 { [%eval 0.44] [%clk 1:03:37] } 19. Rhd1 { [%eval 0.53] [%clk 0:34:06] } 19... Ke7 { [%eval 0.51] [%clk 1:03:12] } 20. Rd3 { [%eval 0.37] [%clk 0:32:10] } 20... f6 { [%eval 0.86] [%clk 1:01:18] } 21. Rad1 { [%eval 0.53] [%clk 0:31:23] } 21... Ra7 { [%eval 0.56] [%clk 1:01:31] } 22. Nd6 { [%eval 0.22] [%clk 0:25:24] } 22... Rc7 { [%eval 0.17] [%clk 0:42:05] } 23. Rg3 { [%eval 0.11] [%clk 0:18:58] } 23... Rg8 { [%eval 0.18] [%clk 0:40:58] } 24. b3 { [%eval 0.15] [%clk 0:06:24] } 24... fxe5 { [%eval 0.18] [%clk 0:24:13] } 25. fxe5 { [%eval 0.1] [%clk 0:06:47] } 25... g5 { [%eval 0.19] [%clk 0:24:40] } 26. Rf1 { [%eval 0.17] [%clk 0:02:41] } 26... g4 { [%eval 0.21] [%clk 0:24:42] } 27. h4 { [%eval 0.13] [%clk 0:00:42] } 27... b5 { [%eval 0.4] [%clk 0:24:47] } 28. Rd3 { [%eval -0.05] [%clk 0:00:33] } 28... bxc4 { [%eval -0.06] [%clk 0:24:20] } 29. Nxc4 { [%eval -0.32] [%clk 0:00:42] } 29... Nf5 { [%eval -0.32] [%clk 0:21:28] } 30. g3 { [%eval -0.35] [%clk 0:00:51] } 30... Rb8 { [%eval -0.01] [%clk 0:21:22] } 31. Rfd1 { [%eval -0.37] [%clk 0:00:52] } 31... Rb5 { [%eval -0.4] [%clk 0:21:30] } 32. Kf2? { [%eval -1.67] } { Mistake. a4 was best. } { [%clk 0:00:58] } 32... Rcb7 { [%eval -1.54] [%clk 0:21:14] } 33. Rb1 { [%eval -2.08] [%clk 0:00:41] } 33... Rd5 { [%eval -1.97] [%clk 0:21:14] } 34. Rxd5 { [%eval -2.3] [%clk 0:00:38] } 34... exd5 { [%eval -2.32] [%clk 0:21:39] } 35. Ne3 { [%eval -2.67] [%clk 0:00:38] } 35... Ke6 { [%eval -2.62] [%clk 0:22:00] } 36. Nxf5 { [%eval -2.95] [%clk 0:00:40] } 36... Kxf5 { [%eval -2.71] [%clk 0:22:25] } 37. Ke3?! { [%eval -3.46] } { Inaccuracy. b4 was best. } { [%clk 0:00:55] } 37... Kxe5 { [%eval -3.55] [%clk 0:22:49] } 38. Kd3 { [%eval -4.08] [%clk 0:00:55] } 38... d4 { [%eval -3.99] [%clk 0:22:54] } 39. b4 { [%eval -3.8] [%clk 0:00:53] } 39... Rc7 { [%eval -3.79] [%clk 0:21:40] } 40. Rb3 { [%eval -4.6] [%clk 0:00:43] } 40... Rc1 { [%eval -4.09] [%clk 0:20:58] } 41. a4 { [%eval -4.49] [%clk 0:01:12] } 41... Rg1 { [%eval -3.86] [%clk 0:14:59] } 42. Ke2 { [%eval -4.33] [%clk 0:01:20] } 42... Rg2+ { [%eval -3.74] [%clk 0:13:29] } 43. Kd1?! { [%eval -5.29] } { Inaccuracy. Kf1 was best. } { [%clk 0:00:38] } 43... Ke4 { [%eval -5.01] [%clk 0:11:42] } 44. b5 { [%eval -5.06] [%clk 0:01:05] } 44... axb5 { [%eval -5.27] [%clk 0:12:09] } 45. axb5 { [%eval -5.04] [%clk 0:01:34] } 45... d3 { [%eval -5.27] [%clk 0:12:16] } 46. b6 { [%eval -5.25] [%clk 0:01:40] } 46... Ke3 { [%eval -5.19] [%clk 0:12:41] } 47. Kc1 { [%eval -5.04] [%clk 0:02:09] } 47... Rc2+ { [%eval -4.83] [%clk 0:12:48] } 48. Kd1 { [%eval -4.89] [%clk 0:00:59] } 48... Rf2 { [%eval -5.33] [%clk 0:12:14] } 49. Ke1 { [%eval -6.02] [%clk 0:00:35] } 49... Ra2 { [%eval -6.22] [%clk 0:12:16] } 50. Kf1 { [%eval -6.45] [%clk 0:00:53] } 50... Ra1+ { [%eval -6.22] [%clk 0:12:24] } 51. Kg2 { [%eval -5.99] [%clk 0:01:22] } 51... Ra8 { [%eval -5.85] [%clk 0:11:46] } 52. b7 { [%eval -6.25] [%clk 0:01:45] } 52... Rb8 { [%eval -6.2] [%clk 0:12:12] } 53. Kf1 { [%eval -6.36] [%clk 0:01:26] } 53... Kd2 { [%eval -6.25] [%clk 0:12:22] } 54. Rb5 { [%eval -6.4] [%clk 0:01:02] } 54... d5 { [%eval -5.57] [%clk 0:12:13] } 55. Kf2 { [%eval -6.79] [%clk 0:00:44] } 55... d4 { [%eval -7.3] [%clk 0:12:38] } 56. Rb6? { [%eval #-24] } { Checkmate is now unavoidable. Rxh5 was best. } { [%clk 0:00:39] } 56... Kd1 { [%eval -27.12] [%clk 0:12:23] } 57. Rb1+?! { [%eval #-21] } { Checkmate is now unavoidable. Rb4 was best. } { [%clk 0:00:34] } 57... Kc2 { [%eval #-21] [%clk 0:12:46] } 58. Rb6 { [%eval #-9] [%clk 0:00:32] } 58... d2 { [%eval #-8] [%clk 0:12:55] } 59. Rc6+ { [%eval #-7] [%clk 0:00:33] } 59... Kd3 { [%eval #-6] [%clk 0:13:13] } 0-1