Event: Schweizer Jugend Einzelmeisterschaft 2023 U12
Site: Olten, Switzerland
Date: 2023-05-28
White: Koehalmi-Szabo, Mihaly
Black: Federer, Colin
Result: 0-1
ECO: B53
Opening: Sicilian Defense: Chekhover Variation
Variant: Standard
TimeControl: 90 min + 30 sek pro Zug

1. e4 { [%eval 0.36] [%clk 1:30:43] } 1... c5 { [%eval 0.32] [%clk 1:30:49] } 2. Nf3 { [%eval 0.0] [%clk 1:31:07] } 2... d6 { [%eval 0.0] [%clk 1:31:15] } 3. d4 { [%eval 0.25] [%clk 1:31:28] } 3... cxd4 { [%eval 0.13] [%clk 1:31:41] } 4. Qxd4 { [%eval 0.0] [%clk 1:31:50] } 4... Nc6 { [%eval 0.26] [%clk 1:32:06] } 5. Bb5 { [%eval 0.17] [%clk 1:32:11] } 5... Bd7 { [%eval 0.2] [%clk 1:32:33] } 6. Bxc6 { [%eval 0.0] [%clk 1:32:34] } 6... Bxc6 { [%eval 0.18] [%clk 1:32:59] } 7. Nc3 { [%eval 0.0] [%clk 1:32:51] } 7... e5 { [%eval 0.47] [%clk 1:33:23] } 8. Qd3 { [%eval 0.4] [%clk 1:33:06] } 8... h6 { [%eval 0.31] [%clk 1:33:20] } 9. Be3 { [%eval 0.37] [%clk 1:33:22] } 9... Nf6 { [%eval 0.18] [%clk 1:33:46] } 10. O-O-O { [%eval 0.13] [%clk 1:31:44] } 10... Be7 { [%eval 0.34] [%clk 1:34:05] } 11. Nh4 { [%eval 0.26] [%clk 1:29:40] } 11... g6 { [%eval 0.19] [%clk 1:24:18] } 12. g3 { [%eval 0.14] [%clk 1:28:05] } 12... b5 { [%eval 0.48] [%clk 1:20:03] } 13. f3?! { [%eval -0.55] } { Inaccuracy. Kb1 was best. } { [%clk 1:22:29] } 13... b4?! { [%eval 0.52] } { Inaccuracy. Qa5 was best. } { [%clk 1:18:14] } 14. Nb5 { [%eval 0.6] [%clk 0:43:26] } 14... d5 { [%eval 0.71] [%clk 1:06:47] } 15. exd5 { [%eval 0.59] [%clk 0:33:23] } 15... Bxd5 { [%eval 0.57] [%clk 1:05:06] } 16. Nxg6 { [%eval 0.32] [%clk 0:30:43] } 16... fxg6 { [%eval 0.5] [%clk 0:58:38] } 17. Qxg6+ { [%eval 0.34] [%clk 0:31:07] } 17... Kd7?? { [%eval 6.14] } { Blunder. Kf8 was best. } { [%clk 0:58:41] } 18. Rxd5+ { [%eval 5.94] [%clk 0:22:14] } 18... Nxd5 { [%eval 6.1] [%clk 0:49:05] } 19. Rd1 { [%eval 5.91] [%clk 0:22:29] } 19... Qg8 { [%eval 6.03] [%clk 0:48:04] } 20. Qxg8?? { [%eval 0.49] } { Blunder. Qe4 was best. } { [%clk 0:15:09] } 20... Rhxg8? { [%eval 1.63] } { Mistake. Raxg8 was best. } { [%clk 0:47:42] } 21. Rxd5+ { [%eval 1.64] [%clk 0:15:31] } 21... Kc6 { [%eval 1.83] [%clk 0:47:56] } 22. Rxe5 { [%eval 1.65] [%clk 0:14:39] } 22... Bf6?! { [%eval 2.58] } { Inaccuracy. Kd7 was best. } { [%clk 0:36:20] } 23. Rc5+ { [%eval 2.24] [%clk 0:11:24] } 23... Kd7 { [%eval 2.39] [%clk 0:35:01] } 24. Rc7+ { [%eval 2.36] [%clk 0:10:27] } 24... Ke6?! { [%eval 3.45] } { Inaccuracy. Kd8 was best. } { [%clk 0:33:50] } 25. Rxa7?? { [%eval 0.95] } { Blunder. Rc6+ was best. } { [%clk 0:10:26] } 25... Rxa7 { [%eval 0.98] [%clk 0:33:39] } 26. Nxa7 { [%eval 0.5] [%clk 0:10:13] } 26... Ra8 { [%eval 0.8] [%clk 0:33:18] } 27. Kb1?! { [%eval 0.17] } { Inaccuracy. Nc6 was best. } { [%clk 0:09:52] } 27... Rd8 { [%eval 0.7] [%clk 0:32:46] } 28. Bxh6?? { [%eval -3.05] } { Blunder. Nc6 was best. } { [%clk 0:09:33] } 28... Rd1+ { [%eval -3.05] [%clk 0:32:42] } 29. Bc1 { [%eval -3.1] [%clk 0:09:24] } 29... Bd4 { [%eval -2.99] [%clk 0:32:55] } 30. Nc6?! { [%eval -4.07] } { Inaccuracy. Nb5 was best. } { [%clk 0:07:45] } 30... Be3 { [%eval -3.93] [%clk 0:31:55] } 31. a4 { [%eval -4.45] } 31... Rxc1+?! { [%eval -3.36] } { Inaccuracy. b3 was best. } { [%clk 0:25:33] } 32. Ka2 { [%eval -3.16] [%clk 0:08:29] } 32... Rxc2 { [%eval -3.29] [%clk 0:25:44] } 33. Nxb4 { [%eval -3.33] [%clk 0:07:07] } 33... Rxh2 { [%eval -3.31] [%clk 0:25:17] } 34. Kb3 { [%eval -3.35] [%clk 0:05:22] } 34... Rh3 { [%eval -3.04] [%clk 0:23:21] } 35. Kc4 { [%eval -3.07] [%clk 0:04:35] } 35... Rxg3 { [%eval -3.07] [%clk 0:23:10] } 36. Kb5 { [%eval -3.27] [%clk 0:03:25] } 36... Rg5+ { [%eval -3.0] [%clk 0:23:03] } 37. Ka6 { [%eval -3.54] [%clk 0:02:55] } 37... Kd6 { [%eval -3.58] [%clk 0:18:38] } 38. Nc2 { [%eval -3.32] [%clk 0:02:22] } 38... Bd2 { [%eval -3.33] [%clk 0:18:18] } 39. b4 { [%eval -3.56] [%clk 0:02:37] } 39... Kc7 { [%eval -3.02] [%clk 0:18:32] } 40. Ka7? { [%eval -5.19] } { Mistake. a5 was best. } { [%clk 0:01:47] } 40... Rg6 { [%eval -7.21] [%clk 0:17:30] } 41. a5 { [%eval #-22] [%clk 0:01:09] } 41... Rg5?? { [%eval -4.45] } { Lost forced checkmate sequence. Rc6 was best. } { [%clk 0:17:25] } 42. Ka6 { [%eval -4.45] [%clk 0:00:44] } 42... Bc3 { [%eval -3.97] [%clk 0:16:56] } 43. Ka7?! { [%eval -5.75] } { Inaccuracy. f4 was best. } { [%clk 0:00:33] } 43... Rb5 { [%eval -5.09] [%clk 0:17:06] } 44. Ka6 { [%eval -5.25] [%clk 0:00:55] } 44... Rb8 { [%eval -5.2] [%clk 0:17:08] } 45. Ne3?? { [%eval #-8] } { Checkmate is now unavoidable. f4 was best. } { [%clk 0:00:42] } 45... Kc6 { [%eval #-7] [%clk 0:16:55] } 46. b5+ { [%eval #-7] [%clk 0:00:31] } 46... Rxb5 { [%eval #-6] [%clk 0:17:13] } 47. Nc4 { [%eval #-6] [%clk 0:00:57] } 47... Rc5 { [%eval #-5] [%clk 0:17:34] } 0-1