Event: Russian Higher League 2021
Date: 2021-07-03
White: Demchenko, Anton
WhiteElo: 2600
Black: Sarana, Alexey
BlackElo: 2640
Result: 1/2-1/2
ECO: B90
Opening: Sicilian Defense: Najdorf Variation
Variant: Standard

1. e4 { [%eval 0.24] [%clk 1:30:56] } 1... c5 { [%eval 0.32] [%clk 1:30:55] } 2. Nf3 { [%eval 0.0] [%clk 1:31:22] } 2... d6 { [%eval 0.0] [%clk 1:31:20] } 3. d4 { [%eval 0.15] [%clk 1:31:40] } 3... cxd4 { [%eval 0.13] [%clk 1:31:45] } 4. Nxd4 { [%eval 0.0] [%clk 1:32:07] } 4... Nf6 { [%eval 0.14] [%clk 1:32:07] } 5. Nc3 { [%eval 0.0] [%clk 1:32:32] } 5... a6 { [%eval 0.21] [%clk 1:32:33] } 6. Nb3 { [%eval 0.0] [%clk 1:32:41] } 6... Nbd7 { [%eval 0.0] [%clk 1:32:14] } 7. Be3 { [%eval 0.23] [%clk 1:32:48] } 7... g6 { [%eval 0.54] [%clk 1:29:08] } 8. f3 { [%eval 0.34] [%clk 1:32:12] } 8... Bg7 { [%eval 0.51] [%clk 1:29:07] } 9. Qd2 { [%eval 0.29] [%clk 1:32:28] } 9... b5?! { [%eval 1.12] } { Inaccuracy. Ne5 was best. } { [%clk 1:29:31] } 10. a4 { [%eval 0.93] [%clk 1:32:41] } 10... bxa4 { [%eval 1.26] [%clk 1:25:49] } 11. Rxa4 { [%eval 0.76] [%clk 1:32:00] } 11... O-O { [%eval 0.65] [%clk 1:26:13] } 12. Be2 { [%eval 0.66] [%clk 1:32:21] } 12... Nb6 { [%eval 0.67] [%clk 1:26:30] } 13. Ra3 { [%eval 0.75] [%clk 1:31:04] } 13... Qc7 { [%eval 0.48] [%clk 1:26:02] } 14. O-O { [%eval 0.8] [%clk 1:30:03] } 14... Rd8 { [%eval 0.79] [%clk 1:12:33] } 15. Qe1?! { [%eval 0.13] } { Inaccuracy. Rd1 was best. } { [%clk 1:17:37] } 15... Nc4 { [%eval 0.6] [%clk 1:05:23] } 16. Bxc4 { [%eval 0.78] [%clk 1:16:51] } 16... Qxc4 { [%eval 0.68] [%clk 1:05:51] } 17. Qf2 { [%eval 0.62] [%clk 1:12:09] } 17... Rb8 { [%eval 1.12] [%clk 0:52:57] } 18. Bb6 { [%eval 0.62] [%clk 1:03:46] } 18... Re8 { [%eval 0.83] [%clk 0:52:30] } 19. Na5 { [%eval 0.4] [%clk 1:03:24] } 19... Qe6 { [%eval 0.44] [%clk 0:52:41] } 20. Nc6 { [%eval 0.56] [%clk 1:02:02] } 20... Ra8 { [%eval 0.77] [%clk 0:52:59] } 21. Rd1 { [%eval 0.27] [%clk 0:57:22] } 21... Bd7 { [%eval 0.62] [%clk 0:50:26] } 22. Nb4 { [%eval 0.22] [%clk 0:46:14] } 22... Qc4 { [%eval 0.24] [%clk 0:50:18] } 23. Nbd5 { [%eval 0.0] [%clk 0:45:38] } 23... Nxd5 { [%eval 0.07] [%clk 0:50:20] } 24. Nxd5 { [%eval 0.22] [%clk 0:45:51] } 24... Rac8?! { [%eval 0.89] } { Inaccuracy. Bxb2 was best. } { [%clk 0:48:56] } 25. c3 { [%eval 0.95] [%clk 0:43:47] } 25... Be6 { [%eval 1.25] [%clk 0:44:57] } 26. Nb4 { [%eval 1.29] [%clk 0:38:19] } 26... Ra8 { [%eval 1.2] [%clk 0:43:33] } 27. Rda1 { [%eval 1.04] [%clk 0:36:00] } 27... f5 { [%eval 1.32] [%clk 0:43:18] } 28. exf5 { [%eval 1.24] [%clk 0:35:15] } 28... Bxf5 { [%eval 1.2] [%clk 0:43:46] } 29. Qf1? { [%eval 0.0] } { Mistake. Rxa6 was best. } { [%clk 0:33:18] } 29... Qxf1+ { [%eval -0.03] [%clk 0:41:00] } 30. Kxf1 { [%eval 0.0] [%clk 0:33:26] } 30... Rab8 { [%eval 0.0] [%clk 0:39:12] } 31. Be3 { [%eval -0.08] [%clk 0:27:16] } 31... Rxb4 { [%eval 0.0] [%clk 0:37:46] } 32. cxb4 { [%eval 0.0] [%clk 0:27:40] } 32... Bxb2 { [%eval 0.0] [%clk 0:38:13] } 33. Rxa6 { [%eval 0.0] [%clk 0:27:48] } 33... Bxa1 { [%eval 0.01] [%clk 0:36:10] } 34. Rxa1 { [%eval 0.0] [%clk 0:28:13] } 34... Rb8 { [%eval 0.08] [%clk 0:35:46] } 35. Ra7 { [%eval 0.07] [%clk 0:25:34] } 35... Rxb4 { [%eval 0.03] [%clk 0:36:11] } 36. Rxe7 { [%eval 0.02] [%clk 0:25:57] } 36... h5 { [%eval 0.04] [%clk 0:36:39] } 37. Bg5 { [%eval 0.0] [%clk 0:17:13] } 37... Rb1+ { [%eval 0.0] [%clk 0:36:46] } 38. Re1 { [%eval 0.0] [%clk 0:17:26] } 38... Rxe1+ { [%eval 0.0] [%clk 0:37:14] } 39. Kxe1 { [%eval 0.0] [%clk 0:17:51] } 39... Kf7 { [%eval 0.0] [%clk 0:37:41] } 40. h4 { [%clk 0:47:57] } 40... Ke6 { [%clk 1:08:08] } 1/2-1/2