Event: Round 5: Richard Balsang Bitoon - Viktor Matviishen
Date: 2022-07-22
White: Richard Balsang Bitoon
WhiteTitle: GM
Black: Viktor Matviishen
BlackTitle: IM
Result: 0-1
ECO: B95
Opening: Sicilian Defense: Najdorf Variation
Variant: Standard

1. e4 { [%eval 0.33] [%clk 1:30:58] } 1... c5 { [%eval 0.32] [%clk 1:20:19] } 2. Nf3 { [%eval 0.0] [%clk 1:30:49] } 2... d6 { [%eval 0.0] [%clk 1:20:44] } 3. d4 { [%eval 0.3] [%clk 1:31:13] } 3... cxd4 { [%eval 0.13] [%clk 1:21:09] } 4. Nxd4 { [%eval 0.29] [%clk 1:31:38] } 4... Nf6 { [%eval 0.31] [%clk 1:21:36] } 5. Nc3 { [%eval 0.18] [%clk 1:32:00] } 5... a6 { [%eval 0.0] [%clk 1:22:04] } 6. Bg5 { [%eval 0.0] [%clk 1:32:21] } 6... e6 { [%eval 0.17] [%clk 1:22:28] } 7. Qf3 { [%eval 0.0] [%clk 1:32:44] } 7... Nbd7 { [%eval 0.0] [%clk 1:22:52] } 8. O-O-O { [%eval -0.15] [%clk 1:33:07] } 8... Qc7 { [%eval -0.1] [%clk 1:23:18] } 9. g4 { [%eval -0.12] [%clk 1:33:28] } 9... b5 { [%eval 0.15] [%clk 1:22:29] } 10. Bxf6 { [%eval -0.12] [%clk 1:32:50] } 10... gxf6 { [%eval -0.25] [%clk 1:22:53] } 11. a3 { [%eval -0.63] [%clk 1:28:57] } 11... Bb7?! { [%eval 0.3] } { Inaccuracy. Rb8 was best. } { [%clk 1:22:12] } 12. Kb1 { [%eval 0.33] [%clk 1:22:15] } 12... O-O-O { [%eval 0.25] [%clk 1:21:45] } 13. Bd3 { [%eval -0.26] [%clk 1:12:10] } 13... Kb8 { [%eval -0.24] [%clk 1:20:22] } 14. h4 { [%eval -0.52] [%clk 1:07:09] } 14... Rg8?! { [%eval 0.26] } { Inaccuracy. h5 was best. } { [%clk 1:19:36] } 15. g5?! { [%eval -0.38] } { Inaccuracy. Rhg1 was best. } { [%clk 1:04:31] } 15... f5 { [%eval -0.34] [%clk 1:16:37] } 16. Qe3 { [%eval -0.55] [%clk 0:52:10] } 16... f4 { [%eval -0.34] [%clk 1:11:01] } 17. Qxf4 { [%eval -0.34] [%clk 0:38:12] } 17... e5 { [%eval -0.23] [%clk 1:11:27] } 18. Qxf7 { [%eval -0.36] [%clk 0:38:34] } 18... Rg7 { [%eval -0.25] [%clk 1:10:22] } 19. Qxg7 { [%eval -0.23] [%clk 0:38:20] } 19... Bxg7 { [%eval -0.22] [%clk 1:10:47] } 20. Ne6 { [%eval -0.1] [%clk 0:38:46] } 20... Qb6 { [%eval 0.35] [%clk 1:11:12] } 21. Nxg7 { [%eval 0.19] [%clk 0:39:11] } 21... Nc5 { [%eval 0.48] [%clk 1:11:15] } 22. h5? { [%eval -0.62] } { Mistake. f3 was best. } { [%clk 0:37:28] } 22... a5 { [%eval -0.63] [%clk 1:10:38] } 23. Nd5? { [%eval -2.13] } { Mistake. Bxb5 was best. } { [%clk 0:24:28] } 23... Bxd5 { [%eval -2.11] [%clk 1:10:55] } 24. exd5 { [%eval -2.17] [%clk 0:24:56] } 24... b4 { [%eval -1.72] [%clk 1:08:35] } 25. axb4?! { [%eval -2.57] } { Inaccuracy. Ka1 was best. } { [%clk 0:22:51] } 25... Qxb4 { [%eval -2.94] [%clk 1:08:57] } 26. c3 { [%eval -2.9] [%clk 0:06:11] } 26... Qb7 { [%eval -3.17] [%clk 1:09:23] } 27. Ne6 { [%eval -3.86] [%clk 0:06:16] } 27... Na4 { [%eval -3.86] [%clk 1:09:47] } 28. Rd2 { [%eval -4.21] [%clk 0:06:32] } 28... Nxc3+ { [%eval -4.5] [%clk 1:07:26] } 29. Kc2 { [%eval -4.79] [%clk 0:01:18] } 29... Nxd5 { [%eval -4.63] [%clk 1:07:49] } 30. Nxd8 { [%eval -3.95] [%clk 0:01:42] } 30... Nb4+ { [%eval -4.75] [%clk 1:08:13] } 31. Kb3 { [%eval -3.72] [%clk 0:01:06] } 31... Qxh1 { [%eval -4.96] [%clk 1:07:59] } 32. Bxh7 { [%eval -4.71] [%clk 0:01:12] } 32... Qh3+ { [%eval -5.24] [%clk 0:59:55] } 33. Ka4 { [%eval -5.51] [%clk 0:00:52] } 33... Qd7+ { [%eval -5.73] [%clk 1:00:11] } 34. Kxa5 { [%eval -5.46] [%clk 0:01:15] } 34... Na2 { [%eval -5.6] [%clk 1:00:34] } 35. Be4?? { [%eval #-3] } { Checkmate is now unavoidable. Rd5 was best. } { [%clk 0:00:40] } 35... Qa7+ { [%eval #-2] [%clk 1:00:48] } 36. Kb5 { [%eval #-2] [%clk 0:00:52] } 36... Qc5+ { [%eval #-1] [%clk 1:01:13] } 0-1