Event: Biel Chess Festival 2025 Challengers 960
Site: Biel, Switzerland
Date: 2025-07-12
White: Jumabayev, Rinat
WhiteTitle: GM
WhiteElo: 2546
Black: Theodorou, Nikolas
BlackTitle: GM
BlackElo: 2625
Result: 1-0
Variant: Fischerandom
TimeControl: 15 min + 5 sec per move

1. d4 { [%eval 0.21] [%clk 0:14:56] } 1... e6 { [%eval 0.17] [%clk 0:14:48] } 2. e4 { [%eval 0.23] [%clk 0:14:39] } 2... c5 { [%eval 0.24] [%clk 0:14:33] } 3. d5 { [%eval 0.38] [%clk 0:14:27] } 3... b5 { [%eval 0.89] [%clk 0:14:36] } 4. a4 { [%eval 0.8] [%clk 0:13:59] } 4... exd5 { [%eval 1.14] [%clk 0:13:49] } 5. exd5 { [%eval 1.09] [%clk 0:13:59] } 5... Nb6 { [%eval 1.22] [%clk 0:13:35] } 6. axb5 { [%eval 1.15] [%clk 0:13:42] } 6... Nxd5 { [%eval 1.12] [%clk 0:13:33] } 7. c4 { [%eval 0.86] [%clk 0:13:44] } 7... Nb6 { [%eval 1.05] [%clk 0:12:34] } 8. Ne3 { [%eval 1.28] [%clk 0:13:26] } 8... Ne6 { [%eval 1.38] [%clk 0:12:34] } 9. Bd3 { [%eval 1.04] [%clk 0:12:55] } 9... d5 { [%eval 0.98] [%clk 0:12:09] } 10. cxd5 { [%eval 1.02] [%clk 0:12:40] } 10... Nf4 { [%eval 1.07] [%clk 0:12:13] } 11. Ne2 { [%eval 1.07] [%clk 0:12:28] } 11... Nfxd5? { [%eval 2.74] } { Mistake. Nxd3 was best. } { [%clk 0:11:34] } 12. Nxd5 { [%eval 2.59] [%clk 0:12:29] } 12... Nxd5 { [%eval 2.7] [%clk 0:11:37] } 13. Be4 { [%eval 2.75] [%clk 0:12:30] } 13... Qd6 { [%eval 3.41] [%clk 0:10:17] } 14. Qa2 { [%eval 3.21] [%clk 0:08:09] } 14... Rd8 { [%eval 3.67] [%clk 0:09:01] } 15. Rd1 { [%eval 3.57] [%clk 0:08:12] } 15... Qe7 { [%eval 4.36] [%clk 0:09:04] } 16. Rxd5 { [%eval 4.41] [%clk 0:08:06] } 16... Qxe4 { [%eval 4.62] [%clk 0:08:56] } 17. Rxd8 { [%eval 4.56] [%clk 0:08:07] } 17... Qxe2 { [%eval 4.68] [%clk 0:08:57] } 18. Bc3 { [%eval 4.61] [%clk 0:06:19] } 18... Bxb5 { [%eval 4.4] [%clk 0:08:31] } 19. Qb1?! { [%eval 2.97] } { Inaccuracy. h4 was best. } { [%clk 0:04:22] } 19... Qe7 { [%eval 3.58] [%clk 0:08:08] } 20. Qd1 { [%eval 3.59] [%clk 0:03:43] } 20... h5 { [%eval 3.27] [%clk 0:05:58] } 21. h4 { [%eval 3.51] [%clk 0:03:35] } 21... Rh6 { [%eval 3.45] [%clk 0:04:57] } 22. Rh3 { [%eval 3.6] [%clk 0:03:33] } 22... Rg6 { [%eval 3.85] [%clk 0:05:00] } 23. Rg3 { [%eval 3.79] [%clk 0:00:49] } 23... Rxg3 { [%eval 3.77] [%clk 0:04:58] } 24. fxg3 { [%eval 3.52] [%clk 0:00:53] } 24... Bc6 { [%eval 3.49] [%clk 0:05:02] } 25. Kh2 { [%eval 3.21] [%clk 0:00:34] } 25... f6 { [%eval 3.59] [%clk 0:04:40] } 26. Rd2 { [%eval 3.18] [%clk 0:00:25] } 26... Qf7 { [%eval 3.35] [%clk 0:03:04] } 27. Rd8 { [%eval 3.38] [%clk 0:00:29] } 27... Qe7 { [%eval 3.58] [%clk 0:02:59] } 28. Qd3 { [%eval 3.14] [%clk 0:00:14] } 28... Kf7?! { [%eval 3.95] } { Inaccuracy. Qe4 was best. } { [%clk 0:02:14] } 29. Bd2? { [%eval 2.19] } { Mistake. Qc4+ was best. } { [%clk 0:00:18] } 29... Qe6 { [%eval 2.6] [%clk 0:01:34] } 30. Bf4?! { [%eval 1.58] } { Inaccuracy. Qe3 was best. } { [%clk 0:00:16] } 30... c4? { [%eval 3.48] } { Mistake. Be7 was best. } { [%clk 0:00:49] } 31. Qd1 { [%eval 3.42] [%clk 0:00:19] } 31... Qf5?! { [%eval 5.29] } { Inaccuracy. g6 was best. } { [%clk 0:00:27] } 32. Rxf8+ { [%eval 5.2] [%clk 0:00:09] } 32... Kxf8 { [%eval 5.37] [%clk 0:00:29] } 33. Qd6+ { [%eval 5.19] [%clk 0:00:12] } 33... Kf7 { [%eval 5.37] [%clk 0:00:33] } 34. Qxc6 { [%eval 5.22] [%clk 0:00:16] } 34... Qc2 { [%eval 5.59] [%clk 0:00:36] } 35. Qd7+ { [%eval 5.7] [%clk 0:00:14] } 35... Kg6 { [%eval 5.61] [%clk 0:00:39] } 36. Qe8+ { [%eval 5.43] [%clk 0:00:12] } 36... Kf5?! { [%eval 7.28] } { Inaccuracy. Kh7 was best. } { [%clk 0:00:32] } 37. Qxh5+ { [%eval 7.17] [%clk 0:00:12] } 37... Ke6 { [%eval 7.29] [%clk 0:00:23] } 38. Qe8+ { [%eval 6.41] [%clk 0:00:12] } 38... Kd5 { [%eval 7.85] [%clk 0:00:16] } 39. Qf7+ { [%eval 7.7] [%clk 0:00:07] } 39... Kc6 { [%eval 7.25] [%clk 0:00:10] } 40. Qe6+ { [%eval 7.76] [%clk 0:00:11] } 40... Kb5 { [%eval 7.03] [%clk 0:00:11] } 41. Qd5+ { [%eval 6.07] [%clk 0:00:15] } 41... Ka4 { [%eval 5.66] [%clk 0:00:14] } 42. Qb7 { [%eval 5.72] [%clk 0:00:14] } 42... a5 { [%eval 5.49] [%clk 0:00:13] } 43. Be3 { [%eval 5.57] [%clk 0:00:13] } 43... Qd3 { [%eval 5.68] [%clk 0:00:09] } 44. Bc5 { [%eval 5.3] [%clk 0:00:11] } 44... Qe2? { [%eval 10.41] } { Mistake. g6 was best. } { [%clk 0:00:09] } 45. Bd4?! { [%eval 6.02] } { Inaccuracy. b3+ was best. } { [%clk 0:00:11] } 45... Qd3 { [%eval 6.1] [%clk 0:00:08] } 46. Bc3 { [%eval 6.33] [%clk 0:00:15] } 46... g5 { [%eval 6.51] [%clk 0:00:09] } 47. Qc6+ { [%eval 6.33] [%clk 0:00:14] } 47... Kb3 { [%eval 6.6] [%clk 0:00:13] } 48. Qxf6 { [%eval 6.58] [%clk 0:00:15] } 48... gxh4 { [%eval 6.5] [%clk 0:00:13] } 49. gxh4 { [%eval 6.35] [%clk 0:00:19] } 49... a4 { [%eval 5.89] [%clk 0:00:17] } 50. Be5 { [%eval 6.52] [%clk 0:00:23] } 50... Ka2 { [%eval 6.69] [%clk 0:00:14] } 51. Qf4 { [%eval 6.37] [%clk 0:00:21] } 51... Qe2 { [%eval 6.43] [%clk 0:00:14] } 52. Bf6 { [%eval 6.28] [%clk 0:00:24] } 52... Qe6 { [%eval 6.86] [%clk 0:00:12] } 53. h5 { [%eval 7.27] [%clk 0:00:24] } 53... Qf7 { [%eval 7.91] [%clk 0:00:13] } 54. h6 { [%eval 7.88] [%clk 0:00:28] } 54... c3 { [%eval 8.91] [%clk 0:00:14] } 55. bxc3 { [%eval 8.43] [%clk 0:00:31] } 55... a3 { [%eval 9.89] [%clk 0:00:16] } 56. c4 { [%eval 8.89] [%clk 0:00:33] } 56... Kb3? { [%eval #21] } { Checkmate is now unavoidable. Qh5+ was best. } { [%clk 0:00:15] } 57. Qf3+ { [%eval #21] [%clk 0:00:32] } 57... Ka4 { [%eval #15] [%clk 0:00:11] } 58. Bg7?! { [%eval 17.53] } { Lost forced checkmate sequence. Qd5 was best. } { [%clk 0:00:30] } 58... Qc7+?! { [%eval #13] } { Checkmate is now unavoidable. Qd7 was best. } { [%clk 0:00:13] } 59. Qg3 { [%eval #13] [%clk 0:00:34] } 59... Qc5 { [%eval #13] [%clk 0:00:07] } 60. h7 { [%eval #12] [%clk 0:00:17] } 60... a2 { [%eval #7] [%clk 0:00:06] } 61. h8=Q { [%eval #6] [%clk 0:00:13] } 61... a1=B { [%eval #4] [%clk 0:00:08] } 62. Qa8+ { [%eval #3] [%clk 0:00:20] } 1-0