Event: Round 6: Xu, Chang(CQ) - Kostov, Kiril
Site: https://lichess.org/broadcast/34th-open-international-of-kavala-vasilis-theodoridis--group-b/round-6/B0HCBatN/EKYWWIdg
White: Xu, Chang(CQ)
WhiteElo: 1976
Black: Kostov, Kiril
BlackElo: 2016
Result: 1/2-1/2
ECO: B95
Opening: Sicilian Defense: Najdorf Variation
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:30:28] } 1... c5 { [%eval 0.25] [%clk 1:29:00] } 2. Nf3 { [%eval 0.2] [%clk 1:30:47] } 2... e6 { [%eval 0.28] [%clk 1:27:33] } 3. d4 { [%eval 0.4] [%clk 1:31:02] } 3... cxd4 { [%eval 0.29] [%clk 1:27:05] } 4. Nxd4 { [%eval 0.35] [%clk 1:31:22] } 4... Nf6 { [%eval 0.29] [%clk 1:26:00] } 5. Nc3 { [%eval 0.31] [%clk 1:31:36] } 5... d6 { [%eval 0.49] [%clk 1:25:45] } 6. Bg5 { [%eval 0.14] [%clk 1:28:13] } 6... a6 { [%eval 0.17] [%clk 1:25:52] } 7. Qf3 { [%eval 0.08] [%clk 1:28:23] } 7... Nbd7 { [%eval 0.0] [%clk 1:25:53] } 8. O-O-O { [%eval -0.11] [%clk 1:28:43] } 8... Qc7 { [%eval 0.0] [%clk 1:26:05] } 9. Qg3 { [%eval -0.12] [%clk 1:29:05] } 9... h6 { [%eval 0.36] [%clk 1:24:01] } 10. Bxf6 { [%eval 0.4] [%clk 1:29:15] } 10... Nxf6 { [%eval 0.46] [%clk 1:15:48] } 11. f4 { [%eval 0.5] [%clk 1:29:37] } 11... b6?? { [%eval 2.55] } { Blunder. h5 was best. } { [%clk 1:16:12] } 12. Bd3 { [%eval 2.43] [%clk 1:22:36] } 12... Bb7 { [%eval 2.5] [%clk 1:08:19] } 13. Rhe1?? { [%eval 0.57] } { Blunder. e5 was best. } { [%clk 1:18:25] } 13... O-O-O { [%eval 0.47] [%clk 1:07:31] } 14. Qf3 { [%eval 0.27] [%clk 1:14:59] } 14... Nd7?! { [%eval 1.12] } { Inaccuracy. b5 was best. } { [%clk 1:00:14] } 15. Bf1?! { [%eval 0.55] } { Inaccuracy. f5 was best. } { [%clk 1:09:26] } 15... Kb8 { [%eval 0.59] [%clk 0:49:12] } 16. Kb1?! { [%eval -0.31] } { Inaccuracy. f5 was best. } { [%clk 1:05:22] } 16... Nf6?! { [%eval 0.4] } { Inaccuracy. g6 was best. } { [%clk 0:44:47] } 17. g4 { [%eval -0.11] [%clk 1:01:04] } 17... g6?! { [%eval 0.46] } { Inaccuracy. d5 was best. } { [%clk 0:37:49] } 18. h4?! { [%eval -0.1] } { Inaccuracy. f5 was best. } { [%clk 0:52:55] } 18... Be7 { [%eval 0.38] [%clk 0:34:05] } 19. Bg2 { [%eval 0.02] [%clk 0:50:51] } 19... b5 { [%eval 0.11] [%clk 0:30:36] } 20. a3 { [%eval 0.13] [%clk 0:43:18] } 20... Qb6 { [%eval 0.65] [%clk 0:29:09] } 21. Qg3 { [%eval 0.43] [%clk 0:39:26] } 21... Nd7 { [%eval 0.36] [%clk 0:25:06] } 22. f5? { [%eval -0.81] } { Mistake. g5 was best. } { [%clk 0:24:04] } 22... e5? { [%eval 0.34] } { Mistake. Bf6 was best. } { [%clk 0:21:43] } 23. Nb3 { [%eval 0.34] [%clk 0:24:02] } 23... g5 { [%eval 0.35] [%clk 0:21:03] } 24. h5 { [%eval 0.38] [%clk 0:22:19] } 24... Nf6 { [%eval 0.23] [%clk 0:21:24] } 25. Bf3 { [%eval -0.22] [%clk 0:21:24] } 25... Rd7 { [%eval -0.29] [%clk 0:20:27] } 26. Rd3 { [%eval -0.25] [%clk 0:20:13] } 26... Rc8 { [%eval -0.17] [%clk 0:20:16] } 27. Nd2 { [%eval -0.24] [%clk 0:18:21] } 27... Rdc7 { [%eval 0.0] [%clk 0:16:26] } 28. Bd1 { [%eval -0.25] [%clk 0:16:03] } 28... Ka7 { [%eval -0.26] [%clk 0:14:36] } 29. Nd5 { [%eval -0.66] [%clk 0:06:32] } 29... Bxd5 { [%eval -0.63] } 30. exd5 { [%eval -0.65] } 30... Rc5 { [%eval -0.15] } 31. Ne4 { [%eval -0.37] } 31... Nxe4 { [%eval -0.15] } 32. Rxe4 { [%eval -0.28] [%clk 0:07:30] } 32... Qb7?! { [%eval 0.52] } { Inaccuracy. f6 was best. } { [%clk 0:14:36] } 33. Re1?! { [%eval -0.53] } { Inaccuracy. Qf2 was best. } { [%clk 0:07:30] } 33... Qb6 { [%eval 0.0] [%clk 0:14:36] } 34. Re4 { [%eval -0.16] [%clk 0:07:30] } 34... Qb7?! { [%eval 0.5] } { Inaccuracy. f6 was best. } { [%clk 0:14:36] } 1/2-1/2