Event: World Youth Cup 2021 O14-G14 - Open 14
Site: Tornelo INT
Date: 2021-08-11
White: Colev, Ivor
Black: Okuno, Rion
Result: 1-0
ECO: B90
Opening: Sicilian Defense: Najdorf Variation, Lipnitsky Attack
Variant: Standard

1. e4 { [%eval 0.24] [%clk 0:10:03] } 1... c5 { [%eval 0.32] [%clk 0:10:00] } 2. Nf3 { [%eval 0.0] [%clk 0:10:04] } 2... d6 { [%eval 0.0] [%clk 0:10:00] } 3. d4 { [%eval 0.15] [%clk 0:10:05] } 3... cxd4 { [%eval 0.13] [%clk 0:10:01] } 4. Nxd4 { [%eval 0.0] [%clk 0:10:07] } 4... Nf6 { [%eval 0.14] [%clk 0:09:59] } 5. Nc3 { [%eval 0.18] [%clk 0:10:09] } 5... a6 { [%eval 0.21] [%clk 0:09:59] } 6. Bc4 { [%eval 0.0] [%clk 0:10:10] } 6... e6 { [%eval 0.0] [%clk 0:09:55] } 7. Bb3 { [%eval 0.0] [%clk 0:10:11] } 7... Be7 { [%eval 0.28] [%clk 0:09:35] } 8. g4 { [%eval 0.64] [%clk 0:10:12] } 8... h6 { [%eval 0.96] [%clk 0:09:27] } 9. Rg1 { [%eval 0.82] [%clk 0:10:08] } 9... Qc7 { [%eval 1.23] [%clk 0:08:47] } 10. Be3 { [%eval 0.84] [%clk 0:08:49] } 10... b6?? { [%eval 2.65] } { Blunder. b5 was best. } { [%clk 0:08:22] } 11. Qe2? { [%eval 1.3] } { Mistake. h4 was best. } { [%clk 0:08:34] } 11... Bb7?? { [%eval 3.51] } { Blunder. b5 was best. } { [%clk 0:08:06] } 12. f3? { [%eval 1.64] } { Mistake. Bxe6 was best. } { [%clk 0:08:35] } 12... Nbd7?? { [%eval 3.79] } { Blunder. Nc6 was best. } { [%clk 0:07:16] } 13. O-O-O?? { [%eval 1.25] } { Blunder. Bxe6 was best. } { [%clk 0:08:35] } 13... O-O-O? { [%eval 2.62] } { Mistake. g6 was best. } { [%clk 0:06:54] } 14. h4 { [%eval 2.56] [%clk 0:07:44] } 14... Nc5 { [%eval 2.24] [%clk 0:06:29] } 15. g5 { [%eval 2.56] [%clk 0:07:25] } 15... hxg5 { [%eval 2.25] [%clk 0:06:23] } 16. hxg5 { [%eval 2.49] [%clk 0:07:26] } 16... Nfd7 { [%eval 2.67] [%clk 0:05:54] } 17. g6 { [%eval 2.28] [%clk 0:07:20] } 17... Nxb3+? { [%eval 4.01] } { Mistake. Nf8 was best. } { [%clk 0:05:43] } 18. axb3 { [%eval 4.61] [%clk 0:07:18] } 18... Ne5?! { [%eval 7.96] } { Inaccuracy. Nf8 was best. } { [%clk 0:03:40] } 19. gxf7 { [%eval 8.0] [%clk 0:07:13] } 19... Qd7 { [%eval 9.07] [%clk 0:03:38] } 20. Rxg7? { [%eval 4.77] } { Mistake. Na4 was best. } { [%clk 0:06:47] } 20... Bf6?! { [%eval 8.5] } { Inaccuracy. b5 was best. } { [%clk 0:03:24] } 21. f8=Q { [%eval 8.62] [%clk 0:05:56] } 21... Bxg7 { [%eval 8.76] [%clk 0:03:21] } 22. Qf4 { [%eval 8.76] [%clk 0:05:42] } 22... Rdf8 { [%eval 8.84] [%clk 0:03:02] } 23. Qg3 { [%eval 9.23] [%clk 0:05:26] } 23... Rfg8 { [%eval 10.04] [%clk 0:02:51] } 24. Qgf2 { [%eval 9.31] [%clk 0:05:12] } 24... Rh3 { [%eval 10.03] [%clk 0:02:40] } 25. Qff1 { [%eval 9.51] [%clk 0:04:36] } 25... Rgh8 { [%eval 9.69] [%clk 0:02:38] } 26. f4 { [%eval 8.84] [%clk 0:04:23] } 26... Rh2 { [%eval 8.81] [%clk 0:02:19] } 27. Qee1 { [%eval 9.02] [%clk 0:03:22] } 27... Ng4 { [%eval 9.43] [%clk 0:02:18] } 28. Qc4+ { [%eval 9.52] [%clk 0:03:22] } 28... Kb8 { [%eval 9.28] [%clk 0:02:17] } 29. Qxe6 { [%eval 7.43] [%clk 0:03:19] } 29... Qxe6 { [%eval 6.86] [%clk 0:01:55] } 30. Nxe6 { [%eval 7.1] [%clk 0:03:19] } 30... Rh1 { [%eval 9.67] [%clk 0:01:50] } 31. Qd2 { [%eval 6.7] [%clk 0:03:03] } 31... Bxc3?? { [%eval #9] } { Checkmate is now unavoidable. Nxe3 was best. } { [%clk 0:01:35] } 32. bxc3?? { [%eval 6.86] } { Lost forced checkmate sequence. Qxd6+ was best. } { [%clk 0:03:02] } 32... Rxd1+ { [%eval 6.85] [%clk 0:01:34] } 33. Qxd1 { [%eval 6.62] [%clk 0:02:41] } 33... Nxe3 { [%eval 6.76] [%clk 0:01:33] } 34. Qxd6+ { [%eval 7.38] [%clk 0:02:42] } 34... Ka7 { [%eval 6.9] [%clk 0:01:34] } 35. Qd4 { [%eval 6.86] [%clk 0:02:20] } 35... Rh1+ { [%eval 6.92] [%clk 0:01:27] } 36. Kb2 { [%eval 6.92] [%clk 0:02:20] } 36... Nd1+ { [%eval 7.15] [%clk 0:01:28] } 37. Ka3 { [%eval 7.24] [%clk 0:01:59] } 37... Rh6 { [%eval 7.65] [%clk 0:01:07] } 38. Qxd1 { [%eval 7.39] [%clk 0:01:52] } 38... Rxe6 { [%eval 7.3] [%clk 0:01:06] } 39. e5 { [%eval 7.53] [%clk 0:01:53] } 39... Re7 { [%eval 8.45] [%clk 0:00:59] } 40. Qd6 { [%eval 8.35] [%clk 0:01:54] } 40... Rf7 { [%eval 9.18] [%clk 0:00:53] } 41. e6 { [%eval 9.26] [%clk 0:01:53] } 41... Rf6 { [%eval 10.08] [%clk 0:00:54] } 42. Qe5 { [%eval 10.11] [%clk 0:01:53] } 42... Rf8 { [%eval 12.6] [%clk 0:00:48] } 43. e7 { [%eval 12.08] [%clk 0:01:54] } 43... Re8 { [%eval 20.0] [%clk 0:00:48] } 44. Qc7 { [%eval 12.02] [%clk 0:01:55] } 44... Rc8 { [%eval 13.44] [%clk 0:00:48] } 45. Qxc8 { [%eval 9.36] [%clk 0:01:53] } 45... Bxc8 { [%eval 9.05] [%clk 0:00:49] } 46. e8=Q { [%eval 7.38] [%clk 0:01:53] } 46... Bb7 { [%eval 64.98] [%clk 0:00:48] } 47. f5 { [%eval #9] [%clk 0:01:53] } 47... a5 { [%eval 74.01] [%clk 0:00:49] } 48. f6 { [%eval #7] [%clk 0:01:54] } 48... b5 { [%eval #6] [%clk 0:00:49] } 49. f7 { [%eval #6] [%clk 0:01:54] } 49... b4+ { [%eval #6] [%clk 0:00:50] } 50. cxb4 { [%clk 0:01:54] } 50... axb4+ { [%clk 0:00:50] } 51. Kxb4 { [%clk 0:01:56] } 51... Ba8 { [%clk 0:00:49] } 52. f8=Q { [%clk 0:01:55] } 52... Bc6 { [%clk 0:00:50] } 53. Qb8+ { [%clk 0:01:51] } 53... Ka6 { [%clk 0:00:50] } 54. Qf1+ { [%clk 0:01:51] } 54... Bb5 { [%clk 0:00:49] } 55. Qfxb5# { [%clk 0:01:52] } 1-0