Event: Biel Chess Festival 2025 MTO
Site: Biel, Switzerland
Date: 2025-07-24
White: Cordes, Jule
WhiteElo: 1946
Black: Yu, Tianxiang Carlos
BlackElo: 1938
Result: 1/2-1/2
ECO: E81
Opening: King's Indian Defense: Sämisch Variation, Bobotsov-Korchnoi-Petrosian Variation
Variant: Standard
TimeControl: 100 min 40 moves + 30 min Rest + 30 sec per move

1. d4 { [%eval 0.17] [%clk 1:40:58] } 1... Nf6 { [%eval 0.19] [%clk 1:32:54] } 2. c4 { [%eval 0.18] [%clk 1:41:22] } 2... g6 { [%eval 0.28] [%clk 1:33:07] } 3. f3 { [%eval 0.22] [%clk 1:41:46] } 3... Bg7 { [%eval 0.32] [%clk 1:33:07] } 4. e4 { [%eval 0.3] [%clk 1:42:10] } 4... d6 { [%eval 0.37] [%clk 1:33:24] } 5. Nc3 { [%eval 0.26] [%clk 1:42:31] } 5... O-O { [%eval 0.29] [%clk 1:33:44] } 6. Nge2 { [%eval 0.19] [%clk 1:42:51] } 6... a6 { [%eval 0.32] [%clk 1:33:26] } 7. Be3 { [%eval 0.19] [%clk 1:43:04] } 7... b5 { [%eval 0.32] [%clk 1:33:37] } 8. cxb5 { [%eval 0.19] [%clk 1:43:15] } 8... axb5 { [%eval 0.19] [%clk 1:33:59] } 9. Nxb5 { [%eval 0.27] [%clk 1:43:38] } 9... c6 { [%eval 0.15] [%clk 1:34:19] } 10. Nbc3 { [%eval 0.12] [%clk 1:43:54] } 10... Nbd7 { [%eval 0.17] [%clk 1:34:39] } 11. Nc1 { [%eval 0.09] [%clk 1:41:44] } 11... e5 { [%eval 0.12] [%clk 1:32:44] } 12. Be2 { [%eval 0.02] [%clk 1:36:25] } 12... d5 { [%eval 0.08] [%clk 1:29:06] } 13. exd5 { [%eval 0.0] [%clk 1:29:13] } 13... Nxd5 { [%eval 0.0] [%clk 1:26:14] } 14. Nxd5 { [%eval 0.0] [%clk 1:22:14] } 14... cxd5 { [%eval 0.02] [%clk 1:25:48] } 15. O-O { [%eval 0.01] [%clk 1:21:01] } 15... Rb8?! { [%eval 0.63] } { Inaccuracy. Qb6 was best. } { [%clk 1:17:44] } 16. dxe5 { [%eval 0.09] [%clk 1:05:08] } 16... Nxe5 { [%eval 0.04] [%clk 1:15:21] } 17. Bd4 { [%eval 0.0] [%clk 0:56:19] } 17... Re8 { [%eval 0.0] [%clk 1:03:14] } 18. b3? { [%eval -1.43] } { Mistake. Nb3 was best. } { [%clk 0:38:26] } 18... Rb4?! { [%eval -0.86] } { Inaccuracy. Bf5 was best. } { [%clk 0:29:24] } 19. Bc3? { [%eval -2.1] } { Mistake. Bc5 was best. } { [%clk 0:33:56] } 19... Rb7?? { [%eval -0.37] } { Blunder. Rh4 was best. } { [%clk 0:27:28] } 20. f4?? { [%eval -2.52] } { Blunder. Kh1 was best. } { [%clk 0:26:28] } 20... d4 { [%eval -2.42] [%clk 0:20:32] } 21. Bb2 { [%eval -2.83] [%clk 0:22:12] } 21... Nc6?? { [%eval -0.18] } { Blunder. d3 was best. } { [%clk 0:20:07] } 22. Bf3 { [%eval -0.66] [%clk 0:21:17] } 22... Qb6?! { [%eval 0.0] } { Inaccuracy. Rb6 was best. } { [%clk 0:20:23] } 23. Nd3 { [%eval 0.0] [%clk 0:19:47] } 23... Rbe7 { [%eval -0.01] [%clk 0:17:48] } 24. Qd2 { [%eval -0.04] [%clk 0:18:07] } 24... Bb7 { [%eval 0.47] [%clk 0:16:55] } 25. Rac1 { [%eval 0.43] [%clk 0:17:23] } 25... Na5?! { [%eval 1.44] } { Inaccuracy. Ra8 was best. } { [%clk 0:16:09] } 26. Bxb7?! { [%eval 0.78] } { Inaccuracy. b4 was best. } { [%clk 0:01:27] } 26... Re2 { [%eval 0.81] [%clk 0:07:43] } 27. Qd1?! { [%eval 0.0] } { Inaccuracy. Qb4 was best. } { [%clk 0:01:32] } 27... Nxb7 { [%eval -0.01] [%clk 0:05:48] } 28. Rf2?! { [%eval -0.62] } { Inaccuracy. Rc2 was best. } { [%clk 0:01:37] } 28... Rxf2 { [%eval -0.54] [%clk 0:05:23] } 29. Nxf2 { [%eval -0.61] [%clk 0:01:37] } 29... Qa5?! { [%eval 0.0] } { Inaccuracy. Nd6 was best. } { [%clk 0:04:20] } 30. a3 { [%eval -0.45] [%clk 0:01:09] } 30... Nd6 { [%eval -0.35] [%clk 0:04:14] } 31. b4 { [%eval -0.49] [%clk 0:01:32] } 31... Qd5 { [%eval -0.5] [%clk 0:03:37] } 32. h3 { [%eval -0.58] [%clk 0:01:19] } 32... Nf5 { [%eval -0.19] [%clk 0:03:55] } 33. Rc5?! { [%eval -0.77] } { Inaccuracy. Qf3 was best. } { [%clk 0:01:07] } 33... Qa2 { [%eval -0.46] [%clk 0:03:53] } 34. Qd2? { [%eval -1.74] } { Mistake. Nd3 was best. } { [%clk 0:00:59] } 34... Ne3?? { [%eval 0.1] } { Blunder. Ng3 was best. } { [%clk 0:03:25] } 35. Nd3 { [%eval -0.23] [%clk 0:00:46] } 35... Nc4 { [%eval -0.28] [%clk 0:02:41] } 36. Qc2 { [%eval -0.04] [%clk 0:00:40] } 36... Nxa3?? { [%eval 4.24] } { Blunder. Nxb2 was best. } { [%clk 0:01:55] } 37. Qc1?? { [%eval 0.13] } { Blunder. Qa4 was best. } { [%clk 0:00:47] } 37... Qb1 { [%eval 0.11] [%clk 0:00:59] } 38. Qxb1 { [%eval 0.0] [%clk 0:00:38] } 38... Nxb1 { [%eval 0.06] [%clk 0:01:28] } 39. Rd5 { [%eval -0.04] [%clk 0:00:35] } 39... Nc3 { [%eval 0.0] [%clk 0:01:02] } 40. Rd7 { [%eval -0.08] [%clk 0:00:34] } 40... h5 { [%eval 0.0] [%clk 0:00:59] } 41. Kf1 { [%eval 0.0] [%clk 0:24:35] } 41... Kf8 { [%eval 0.0] [%clk 0:23:09] } 42. Ne5 { [%eval -0.01] [%clk 0:15:20] } 42... Bxe5 { [%eval -0.04] [%clk 0:20:08] } 43. fxe5 { [%eval 0.0] [%clk 0:15:17] } 43... Rxe5 { [%eval 0.0] [%clk 0:14:59] } 44. Rxd4 { [%eval 0.0] [%clk 0:15:20] } 44... Re3 { [%eval 0.0] [%clk 0:12:04] } 45. Rc4 { [%eval 0.0] [%clk 0:10:56] } 45... Nd5 { [%eval -0.07] [%clk 0:11:00] } 46. Bd4 { [%eval -0.05] [%clk 0:10:22] } 46... Rb3 { [%eval -0.05] [%clk 0:10:33] } 47. Bc5+ { [%eval -0.06] [%clk 0:09:46] } 47... Ke8 { [%eval -0.06] [%clk 0:09:22] } 48. Ke2 { [%eval -0.15] [%clk 0:07:52] } 48... Kd7 { [%eval -0.13] [%clk 0:09:03] } 49. Rd4 { [%eval -0.08] [%clk 0:05:09] } 1/2-1/2