Event: Round 4: Zdenek Olsar - Karel Zalesky
Date: 2023-07-04
White: Zdenek Olsar
Black: Karel Zalesky
Result: 0-1
ECO: B99
Opening: Sicilian Defense: Najdorf Variation, Main Line
Variant: Standard

1. e4 { [%eval 0.36] [%clk 1:30:55] } 1... c5 { [%eval 0.32] [%clk 1:30:49] } 2. Nf3 { [%eval 0.0] [%clk 1:31:10] } 2... d6 { [%eval 0.0] [%clk 1:31:07] } 3. d4 { [%eval 0.25] [%clk 1:31:32] } 3... cxd4 { [%eval 0.13] [%clk 1:31:33] } 4. Nxd4 { [%eval 0.27] [%clk 1:31:49] } 4... Nf6 { [%eval 0.3] [%clk 1:31:54] } 5. Nc3 { [%eval 0.21] [%clk 1:32:13] } 5... a6 { [%eval 0.39] [%clk 1:32:07] } 6. Bg5 { [%eval 0.0] [%clk 1:32:17] } 6... e6 { [%eval 0.34] [%clk 1:27:06] } 7. f4 { [%eval 0.1] [%clk 1:32:20] } 7... Nbd7 { [%eval 0.21] [%clk 1:26:23] } 8. Qf3 { [%eval 0.33] [%clk 1:30:20] } 8... Qc7 { [%eval 0.43] [%clk 1:26:04] } 9. O-O-O { [%eval 0.36] [%clk 1:30:31] } 9... Be7 { [%eval 0.34] [%clk 1:25:40] } 10. g4 { [%eval 0.6] [%clk 1:29:53] } 10... b5 { [%eval 0.52] [%clk 1:05:07] } 11. Bxf6 { [%eval 0.64] [%clk 1:29:58] } 11... gxf6?! { [%eval 1.25] } { Inaccuracy. Nxf6 was best. } { [%clk 1:04:43] } 12. f5 { [%eval 1.09] [%clk 1:29:27] } 12... Ne5 { [%eval 1.24] [%clk 1:02:56] } 13. Qh3 { [%eval 1.2] [%clk 1:29:18] } 13... b4 { [%eval 1.15] [%clk 0:57:27] } 14. Nce2 { [%eval 1.08] [%clk 1:29:03] } 14... Bf8? { [%eval 2.71] } { Mistake. exf5 was best. } { [%clk 0:39:31] } 15. Nf4 { [%eval 2.84] [%clk 1:25:10] } 15... Qe7 { [%eval 3.34] [%clk 0:35:15] } 16. Qh5 { [%eval 3.13] [%clk 1:21:00] } 16... Kd8 { [%eval 3.09] [%clk 0:22:15] } 17. Rg1 { [%eval 2.67] [%clk 1:16:41] } 17... h6?! { [%eval 4.21] } { Inaccuracy. Kc7 was best. } { [%clk 0:22:21] } 18. Qh4?! { [%eval 3.19] } { Inaccuracy. fxe6 was best. } { [%clk 1:14:35] } 18... Rg8 { [%eval 3.93] [%clk 0:22:09] } 19. Qe1?! { [%eval 2.83] } { Inaccuracy. fxe6 was best. } { [%clk 1:13:53] } 19... a5?! { [%eval 3.6] } { Inaccuracy. h5 was best. } { [%clk 0:11:50] } 20. Nb5?! { [%eval 2.49] } { Inaccuracy. fxe6 was best. } { [%clk 1:09:58] } 20... Ra6 { [%eval 2.92] [%clk 0:12:04] } 21. Nd4 { [%eval 2.65] [%clk 1:08:30] } 21... Rb6 { [%eval 2.33] [%clk 0:09:24] } 22. Qe3 { [%eval 2.47] [%clk 1:07:56] } 22... Kc7 { [%eval 2.56] [%clk 0:09:28] } 23. Qb3 { [%eval 2.23] [%clk 1:05:14] } 23... h5 { [%eval 2.59] [%clk 0:06:08] } 24. Nxh5? { [%eval 1.11] } { Mistake. fxe6 was best. } { [%clk 0:59:34] } 24... Bh6+ { [%eval 1.16] [%clk 0:06:32] } 25. Kb1 { [%eval 1.05] [%clk 0:59:59] } 25... Rxg4 { [%eval 1.1] [%clk 0:04:59] } 26. Rxg4 { [%eval 1.25] [%clk 0:59:25] } 26... Nxg4 { [%eval 1.22] [%clk 0:05:27] } 27. Bh3?? { [%eval -1.69] } { Blunder. Re1 was best. } { [%clk 0:58:09] } 27... Nf2? { [%eval -0.22] } { Mistake. Ne3 was best. } { [%clk 0:04:58] } 28. Rf1? { [%eval -1.85] } { Mistake. Re1 was best. } { [%clk 0:55:21] } 28... Nxh3? { [%eval -0.35] } { Mistake. Nxe4 was best. } { [%clk 0:05:02] } 29. Qxh3 { [%eval -0.42] [%clk 0:55:40] } 29... e5 { [%eval -0.4] [%clk 0:04:44] } 30. Nxf6?? { [%eval -3.96] } { Blunder. Ng3 was best. } { [%clk 0:54:50] } 30... Qxf6 { [%eval -3.96] [%clk 0:04:40] } 31. Nf3 { [%eval -4.43] [%clk 0:54:27] } 31... Ba6 { [%eval -3.85] [%clk 0:04:13] } 32. Re1 { [%eval -3.59] [%clk 0:53:39] } 32... Bb5 { [%eval -3.21] [%clk 0:03:59] } 33. Qh5 { [%eval -3.61] [%clk 0:53:01] } 33... Rc6 { [%eval -3.17] [%clk 0:03:57] } 34. h4 { [%eval -3.04] [%clk 0:53:14] } 34... Kb7 { [%eval -2.8] [%clk 0:03:14] } 35. Ng5 { [%eval -2.96] [%clk 0:52:58] } 35... Rc7 { [%eval -3.34] [%clk 0:03:11] } 36. Rd1 { [%eval -3.33] [%clk 0:52:42] } 36... Kc6?! { [%eval -2.24] } { Inaccuracy. d5 was best. } { [%clk 0:02:36] } 37. Rd5 { [%eval -2.32] [%clk 0:51:54] } 37... Rd7 { [%eval -1.93] [%clk 0:02:33] } 38. b3 { [%eval -2.33] [%clk 0:51:12] } 38... Qg7 { [%eval -1.78] [%clk 0:01:55] } 39. a4 { [%eval -2.08] [%clk 0:50:32] } 39... bxa3 { [%eval -1.58] [%clk 0:01:49] } 40. c4?! { [%eval -2.46] } { Inaccuracy. Ka2 was best. } { [%clk 0:50:53] } 40... Ba6 { [%eval -2.51] [%clk 0:01:33] } 41. Rxa5 { [%eval -2.86] [%clk 0:50:51] } 41... Bb7 { [%eval -2.97] [%clk 0:14:58] } 42. Ka2?! { [%eval -4.01] } { Inaccuracy. Ra7 was best. } { [%clk 1:04:53] } 42... f6 { [%eval -4.32] [%clk 0:09:36] } 43. c5 { [%eval -4.52] [%clk 0:41:56] } 43... Bxg5 { [%eval -4.2] [%clk 0:07:14] } 44. hxg5 { [%eval -4.94] [%clk 0:40:41] } 44... Qxg5 { [%eval -5.17] [%clk 0:05:04] } 45. Qe2 { [%eval -5.26] [%clk 0:40:28] } 45... Qc1 { [%eval -5.5] [%clk 0:04:03] } 46. Qb5+ { [%eval -5.97] [%clk 0:37:42] } 46... Kc7 { [%eval -5.83] [%clk 0:04:30] } 47. Qb6+?? { [%eval #-9] } { Checkmate is now unavoidable. cxd6+ was best. } { [%clk 0:37:23] } 47... Kc8 { [%eval #-9] [%clk 0:04:53] } 48. Rxa3 { [%eval -13.53] [%clk 0:36:52] } 48... Qxc5? { [%eval -5.62] } { Mistake. Qd2+ was best. } { [%clk 0:04:44] } 0-1