Event: Round 2: Krefenstein, Sergej - Guder, Sibylle
Site: https://lichess.org/broadcast/kurt-richter-memorial-tournament-2025/round-2/vUgE2txT/fLTIf6jI
Date: 2025-10-31
White: Krefenstein, Sergej
WhiteElo: 2021
Black: Guder, Sibylle
BlackElo: 1863
Result: 0-1
ECO: E73
Opening: King's Indian Defense: Semi-Averbakh System
Variant: Standard

1. d4 { [%eval 0.17] [%clk 0:25:17] } 1... Nf6 { [%eval 0.19] [%clk 0:25:18] } 2. c4 { [%eval 0.18] [%clk 0:25:26] } 2... g6 { [%eval 0.28] [%clk 0:25:26] } 3. Nc3 { [%eval 0.18] [%clk 0:25:34] } 3... Bg7 { [%eval 0.46] [%clk 0:25:34] } 4. e4 { [%eval 0.4] [%clk 0:25:41] } 4... d6 { [%eval 0.55] [%clk 0:25:42] } 5. Be2 { [%eval 0.51] [%clk 0:25:49] } 5... O-O { [%eval 0.48] [%clk 0:25:46] } 6. Be3 { [%eval 0.5] [%clk 0:25:55] } 6... Nbd7 { [%eval 0.65] [%clk 0:24:50] } 7. Qd2 { [%eval 0.37] [%clk 0:25:26] } 7... e5 { [%eval 0.44] [%clk 0:24:40] } 8. d5 { [%eval 0.48] [%clk 0:25:30] } 8... Qe7 { [%eval 0.96] [%clk 0:22:41] } 9. f3 { [%eval 0.72] [%clk 0:24:39] } 9... Ne8 { [%eval 0.97] [%clk 0:22:04] } 10. g4 { [%eval 0.93] [%clk 0:23:10] } 10... f5 { [%eval 1.15] [%clk 0:18:20] } 11. gxf5?! { [%eval 0.35] } { Inaccuracy. exf5 was best. } { [%clk 0:23:11] } 11... gxf5 { [%eval 0.39] [%clk 0:18:29] } 12. O-O-O { [%eval 0.34] [%clk 0:22:54] } 12... Ndf6 { [%eval 0.87] [%clk 0:17:46] } 13. Bg5 { [%eval 0.37] [%clk 0:19:46] } 13... Qf7 { [%eval 0.29] [%clk 0:16:50] } 14. Kb1 { [%eval 0.37] [%clk 0:18:18] } 14... Qg6 { [%eval 0.35] [%clk 0:16:34] } 15. Bd3 { [%eval 0.48] [%clk 0:13:03] } 15... fxe4 { [%eval 0.49] [%clk 0:13:24] } 16. fxe4 { [%eval 0.63] [%clk 0:13:10] } 16... Ng4 { [%eval 0.57] [%clk 0:12:29] } 17. Bh4?? { [%eval -2.39] } { Blunder. h4 was best. } { [%clk 0:11:43] } 17... Bh6 { [%eval -2.32] [%clk 0:12:03] } 18. Qg2?! { [%eval -3.17] } { Inaccuracy. Qe1 was best. } { [%clk 0:10:36] } 18... Ne3 { [%eval -3.29] [%clk 0:10:43] } 19. Qxg6+ { [%eval -3.27] [%clk 0:10:39] } 19... hxg6 { [%eval -3.1] [%clk 0:10:52] } 20. Rd2 { [%eval -3.11] [%clk 0:09:45] } 20... Nxd5 { [%eval -3.22] [%clk 0:10:05] } 21. Rf2 { [%eval -3.17] [%clk 0:06:19] } 21... Nxc3+ { [%eval -3.06] [%clk 0:09:20] } 22. bxc3 { [%eval -3.11] [%clk 0:06:28] } 22... Rxf2 { [%eval -3.03] [%clk 0:09:28] } 23. Bxf2 { [%eval -3.17] [%clk 0:06:36] } 23... Nf6 { [%eval -3.2] [%clk 0:08:02] } 24. Nf3 { [%eval -3.28] [%clk 0:05:58] } 24... Bd7 { [%eval -3.17] [%clk 0:06:49] } 25. Rg1 { [%eval -3.17] [%clk 0:05:40] } 25... Kh7 { [%eval -3.3] [%clk 0:06:29] } 26. Bh4 { [%eval -3.24] [%clk 0:04:31] } 26... Nh5 { [%eval -2.74] [%clk 0:05:47] } 27. Ng5+ { [%eval -3.39] [%clk 0:03:39] } 27... Kg7 { [%eval -3.6] [%clk 0:05:26] } 28. Bf2?! { [%eval -4.75] } { Inaccuracy. c5 was best. } { [%clk 0:02:31] } 28... Nf4 { [%eval -4.46] [%clk 0:05:10] } 29. Bf1 { [%eval -4.62] [%clk 0:01:51] } 29... Bxg5 { [%eval -4.6] [%clk 0:03:55] } 30. Rxg5 { [%eval -4.55] [%clk 0:01:59] } 30... Bh3 { [%eval -4.19] [%clk 0:02:50] } 31. Rg1 { [%eval -4.32] [%clk 0:01:09] } 31... Bxf1 { [%eval -4.19] [%clk 0:02:51] } 32. Rxf1 { [%eval -4.11] [%clk 0:01:18] } 32... Rf8 { [%eval -4.18] [%clk 0:01:34] } 33. Be3 { [%eval -4.11] [%clk 0:01:26] } 33... Rf7 { [%eval -3.49] [%clk 0:01:21] } 34. Kc2 { [%eval -3.75] [%clk 0:01:24] } 34... b6 { [%eval -3.72] [%clk 0:01:22] } 35. Kb3 { [%eval -3.99] [%clk 0:00:59] } 35... a6 { [%eval -3.29] [%clk 0:01:18] } 36. a3?! { [%eval -4.24] } { Inaccuracy. c5 was best. } { [%clk 0:00:28] } 36... Ne6 { [%eval -4.04] [%clk 0:01:05] } 37. Rxf7+?! { [%eval -5.69] } { Inaccuracy. Re1 was best. } { [%clk 0:00:22] } 37... Kxf7 { [%eval -5.61] [%clk 0:01:14] } 38. a4 { [%eval -6.01] [%clk 0:00:19] } 38... Nc5+ { [%eval -5.87] [%clk 0:00:48] } 39. Bxc5?! { [%eval -9.65] } { Inaccuracy. Kb4 was best. } { [%clk 0:00:25] } 39... bxc5 { [%eval -9.51] [%clk 0:00:53] } 40. Kc2 { [%eval -8.92] [%clk 0:00:25] } 40... Kg7 { [%eval -14.38] [%clk 0:00:55] } 41. Kd3 { [%eval -11.07] [%clk 0:00:28] } 41... Kh6 { [%eval -9.88] [%clk 0:01:03] } 42. Ke3 { [%eval -9.96] [%clk 0:00:36] } 42... Kg5 { [%eval -9.58] [%clk 0:01:11] } 43. Kf3 { [%eval -10.1] [%clk 0:00:43] } 43... Kh4 { [%eval -9.43] [%clk 0:01:20] } 44. a5 { [%eval -13.76] [%clk 0:00:38] } 44... g5 { [%eval -10.36] [%clk 0:01:17] } 45. Kf2 { [%eval -10.27] [%clk 0:00:37] } 45... Kg4 { [%eval -9.26] [%clk 0:01:25] } 46. Ke3? { [%eval #-15] } { Checkmate is now unavoidable. Kg2 was best. } { [%clk 0:00:43] } 46... Kh3 { [%eval #-14] [%clk 0:01:23] } 47. Kf3 { [%eval #-13] [%clk 0:00:49] } 47... g4+ { [%eval #-12] [%clk 0:01:31] } 48. Kf2 { [%eval #-12] [%clk 0:00:53] } 48... Kxh2 { [%eval #-11] [%clk 0:01:39] } 49. Ke3 { [%eval #-11] [%clk 0:00:46] } 49... g3 { [%eval #-10] [%clk 0:01:47] } 50. Kf3 { [%eval #-10] [%clk 0:00:55] } 50... g2 { [%eval #-11] [%clk 0:01:55] } 51. Kg4 { [%eval #-11] [%clk 0:01:02] } 51... g1=Q+ { [%eval #-10] [%clk 0:02:02] } 52. Kf5 { [%eval #-11] [%clk 0:01:11] } 52... Qg7 { [%eval #-10] [%clk 0:01:59] } 53. Ke6 { [%eval #-8] [%clk 0:01:19] } 53... Kg3 { [%eval #-7] [%clk 0:02:03] } 54. Kd5 { [%eval #-7] [%clk 0:01:26] } 54... Qg4 { [%eval #-6] [%clk 0:01:49] } 55. Kc6 { [%eval #-9] [%clk 0:01:29] } 55... Qxe4+ { [%eval #-8] [%clk 0:01:57] } 56. Kxc7 { [%eval #-8] [%clk 0:01:35] } 56... Qxc4 { [%eval #-7] [%clk 0:02:01] } 57. Kxd6 { [%eval #-7] [%clk 0:01:36] } 57... e4 { [%eval #-6] [%clk 0:02:02] } 0-1