Event: Round 9: Sergio E Barrientos - Aleksandr Ostrovskiy
Date: 2023-05-21
White: Sergio E Barrientos
WhiteTitle: GM
Black: Aleksandr Ostrovskiy
BlackTitle: IM
Result: 1-0
ECO: E11
Opening: Bogo-Indian Defense: Grünfeld Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:58] } 1... Nf6 { [%eval 0.28] [%clk 1:21:24] } 2. c4 { [%eval 0.16] [%clk 1:31:23] } 2... e6 { [%eval 0.23] [%clk 1:21:46] } 3. Nf3 { [%eval 0.0] [%clk 1:31:46] } 3... Bb4+ { [%eval 0.43] [%clk 1:20:57] } 4. Nbd2 { [%eval 0.28] [%clk 1:32:08] } 4... O-O { [%eval 0.45] [%clk 1:20:15] } 5. a3 { [%eval 0.43] [%clk 1:32:33] } 5... Be7 { [%eval 0.62] } 6. e4 { [%eval 0.32] [%clk 1:32:59] } 6... d6 { [%eval 0.67] [%clk 1:20:56] } 7. Be2 { [%eval 0.33] [%clk 1:33:01] } 7... Nfd7 { [%eval 0.73] [%clk 1:17:43] } 8. O-O { [%eval 0.27] [%clk 1:29:53] } 8... e5 { [%eval 0.26] [%clk 1:16:51] } 9. Qc2 { [%eval 0.27] [%clk 1:26:18] } 9... exd4 { [%eval 0.32] [%clk 1:10:38] } 10. Nxd4 { [%eval 0.27] [%clk 1:26:23] } 10... Bf6 { [%eval 0.33] [%clk 1:08:04] } 11. N2f3 { [%eval 0.05] [%clk 1:20:35] } 11... Re8 { [%eval 0.17] [%clk 1:04:54] } 12. Re1 { [%eval -0.22] [%clk 1:17:37] } 12... Nc6 { [%eval 0.3] [%clk 0:59:53] } 13. Be3 { [%eval 0.24] [%clk 1:15:01] } 13... Nxd4 { [%eval 0.22] [%clk 0:53:02] } 14. Nxd4 { [%eval 0.19] [%clk 1:12:20] } 14... Nc5 { [%eval 0.16] [%clk 0:50:06] } 15. Rad1 { [%eval -0.18] [%clk 1:03:06] } 15... Bd7 { [%eval 0.12] } 16. Nb5 { [%eval -0.01] [%clk 0:53:39] } 16... a6 { [%eval -0.02] [%clk 0:34:56] } 17. Bxc5 { [%eval 0.06] [%clk 0:53:14] } 17... axb5 { [%eval 0.07] [%clk 0:33:02] } 18. Bb4 { [%eval 0.11] [%clk 0:53:32] } 18... bxc4 { [%eval 0.11] [%clk 0:32:08] } 19. Bxc4 { [%eval 0.09] [%clk 0:53:53] } 19... Bc6?! { [%eval 0.65] } { Inaccuracy. Be5 was best. } 20. f4 { [%eval 0.54] [%clk 0:50:14] } 20... Qc8 { [%eval 0.54] [%clk 0:08:31] } 21. h3 { [%eval 0.44] [%clk 0:49:09] } 21... Ba4 { [%eval 0.55] [%clk 0:06:39] } 22. b3 { [%eval 0.49] [%clk 0:49:13] } 22... Bd7 { [%eval 0.51] [%clk 0:06:36] } 23. a4 { [%eval 0.62] [%clk 0:47:43] } 23... Be6 { [%eval 0.49] [%clk 0:04:39] } 24. Bf1 { [%eval 0.45] } 24... h6 { [%eval 0.63] [%clk 0:03:53] } 25. Kh2 { [%eval 0.67] [%clk 0:45:39] } 25... Bd7 { [%eval 0.92] [%clk 0:03:09] } 26. Bd3 { [%eval 0.44] } 26... Rb8?! { [%eval 1.03] } { Inaccuracy. c5 was best. } { [%clk 0:02:05] } 27. Bf1 { [%eval 0.72] [%clk 0:40:43] } 27... Ra8 { [%eval 0.9] [%clk 0:01:16] } 28. Re3 { [%eval 0.9] [%clk 0:40:55] } 28... Bc6 { [%eval 1.42] [%clk 0:01:18] } 29. Bc4 { [%eval 1.31] [%clk 0:39:44] } 29... Qb8 { [%eval 1.48] [%clk 0:01:14] } 30. e5? { [%eval 0.21] } { Mistake. Qe2 was best. } { [%clk 0:39:13] } 30... dxe5 { [%eval 0.32] [%clk 0:01:13] } 31. Qg6 { [%eval 0.0] [%clk 0:39:28] } 31... Qa7?? { [%eval 2.05] } { Blunder. exf4 was best. } { [%clk 0:00:46] } 32. Bxf7+ { [%eval 1.8] [%clk 0:36:22] } 32... Kh8 { [%eval 1.61] [%clk 0:01:14] } 33. Rde1 { [%eval 1.12] [%clk 0:33:46] } 33... Qd4 { [%eval 1.06] [%clk 0:00:45] } 34. Re4 { [%eval 1.4] [%clk 0:32:09] } 34... Bxe4 { [%eval 1.32] [%clk 0:00:40] } 35. Rxe4 { [%eval 1.52] [%clk 0:32:34] } 35... Qd7 { [%eval 1.3] [%clk 0:00:39] } 36. Bxe8 { [%eval 1.39] [%clk 0:32:18] } 36... Rxe8 { [%eval 1.39] [%clk 0:00:48] } 37. Bc3 { [%eval 1.03] [%clk 0:31:09] } 37... Re6 { [%eval 1.42] [%clk 0:00:36] } 38. Qf5 { [%eval 1.5] [%clk 0:30:08] } 38... Qc6 { [%eval 1.9] [%clk 0:00:31] } 39. fxe5 { [%eval 2.08] [%clk 0:28:53] } 39... Be7?! { [%eval 3.47] } { Inaccuracy. Qd5 was best. } { [%clk 0:00:57] } 40. Rc4 { [%eval 3.63] [%clk 0:27:37] } 40... Qd7 { [%eval 3.85] [%clk 0:00:59] } 41. Rg4 { [%eval 3.66] [%clk 0:28:02] } 41... Bc5?! { [%eval 5.24] } { Inaccuracy. g5 was best. } { [%clk 0:00:34] } 42. b4 { [%eval 4.28] [%clk 0:26:43] } 42... Be3 { [%eval 4.47] [%clk 0:00:34] } 43. Rg6 { [%eval 4.57] [%clk 0:25:21] } 43... Bf4+ { [%eval 5.17] [%clk 0:00:40] } 44. g3 { [%eval 5.36] [%clk 0:25:05] } 1-0