Event: Biel Chess Festival 2025 Challengers Quali
Site: Biel, Switzerland
Date: 2025-05-17
White: Navara, David
WhiteTitle: GM
WhiteElo: 2662
Black: Theodorou, Nikolas
BlackTitle: GM
BlackElo: 2625
Result: 0-1
ECO: E94
Opening: King's Indian Defense: Orthodox Variation
Variant: Standard
TimeControl: 120 min 40 moves + 30 min Rest + 30 sec as of move 41

1. d4 { [%eval 0.17] [%clk 1:59:58] } 1... Nf6 { [%eval 0.19] [%clk 1:59:53] } 2. c4 { [%eval 0.18] [%clk 1:59:50] } 2... g6 { [%eval 0.28] [%clk 1:59:26] } 3. Nc3 { [%eval 0.18] [%clk 1:59:46] } 3... Bg7 { [%eval 0.51] [%clk 1:59:22] } 4. e4 { [%eval 0.4] [%clk 1:59:41] } 4... d6 { [%eval 0.55] [%clk 1:59:19] } 5. Nf3 { [%eval 0.36] [%clk 1:59:38] } 5... O-O { [%eval 0.44] [%clk 1:58:59] } 6. Be2 { [%eval 0.45] [%clk 1:59:36] } 6... e5 { [%eval 0.39] [%clk 1:58:48] } 7. O-O { [%eval 0.4] [%clk 1:59:32] } 7... Re8 { [%eval 0.6] [%clk 1:58:42] } 8. d5 { [%eval 0.64] [%clk 1:57:37] } 8... a5 { [%eval 0.63] [%clk 1:58:40] } 9. Be3 { [%eval 0.57] [%clk 1:53:45] } 9... Ng4 { [%eval 0.61] [%clk 1:57:27] } 10. Bg5 { [%eval 0.66] [%clk 1:53:38] } 10... f6 { [%eval 0.62] [%clk 1:57:21] } 11. Bh4 { [%eval 0.53] [%clk 1:53:17] } 11... Nh6 { [%eval 0.49] [%clk 1:56:27] } 12. Ne1 { [%eval 0.42] [%clk 1:46:35] } 12... g5 { [%eval 0.46] [%clk 1:56:00] } 13. Bg3 { [%eval 0.39] [%clk 1:46:31] } 13... f5 { [%eval 0.41] [%clk 1:55:57] } 14. exf5 { [%eval 0.35] [%clk 1:46:19] } 14... Nxf5 { [%eval 0.35] [%clk 1:54:34] } 15. Ne4 { [%eval 0.24] [%clk 1:45:03] } 15... b6 { [%eval 0.21] [%clk 1:48:18] } 16. Bd3 { [%eval -0.01] [%clk 1:36:52] } 16... h6?! { [%eval 0.58] } { Inaccuracy. Na6 was best. } { [%clk 1:26:24] } 17. Qh5?! { [%eval -0.22] } { Inaccuracy. Nc2 was best. } { [%clk 1:30:11] } 17... Rf8 { [%eval -0.07] [%clk 1:20:45] } 18. Nc2 { [%eval -0.11] [%clk 1:28:30] } 18... Qe8 { [%eval -0.05] [%clk 1:16:17] } 19. Qxe8 { [%eval -0.13] [%clk 1:26:31] } 19... Rxe8 { [%eval 0.0] [%clk 1:16:14] } 20. Ne3 { [%eval -0.07] [%clk 1:22:02] } 20... Rf8 { [%eval 0.18] [%clk 1:15:33] } 21. Nxf5 { [%eval 0.08] [%clk 1:18:11] } 21... Bxf5 { [%eval 0.18] [%clk 1:15:18] } 22. f3 { [%eval 0.14] [%clk 1:18:03] } 22... Na6 { [%eval 0.12] [%clk 1:12:35] } 23. Rac1 { [%eval -0.03] [%clk 1:16:02] } 23... a4 { [%eval 0.09] [%clk 1:01:44] } 24. Be1 { [%eval 0.0] [%clk 1:13:25] } 24... Nc5 { [%eval 0.0] [%clk 0:56:44] } 25. Bc2 { [%eval -0.06] [%clk 1:11:55] } 25... Kh7 { [%eval 0.2] [%clk 0:43:35] } 26. Bd2 { [%eval 0.06] [%clk 1:08:27] } 26... Bg6 { [%eval 0.28] [%clk 0:42:15] } 27. h3 { [%eval 0.28] [%clk 1:05:48] } 27... Rf7 { [%eval 0.21] [%clk 0:37:42] } 28. Be3 { [%eval 0.04] [%clk 1:03:01] } 28... Nxe4 { [%eval 0.0] [%clk 0:35:09] } 29. fxe4 { [%eval 0.01] [%clk 1:00:08] } 29... Bf6 { [%eval 0.14] [%clk 0:34:29] } 30. Rf2 { [%eval 0.0] [%clk 0:57:23] } 30... Kg7 { [%eval 0.0] [%clk 0:34:06] } 31. Rcf1 { [%eval 0.0] [%clk 0:55:56] } 31... Rff8 { [%eval 0.06] [%clk 0:32:03] } 32. g4 { [%eval 0.04] [%clk 0:53:43] } 32... Be8 { [%eval 0.05] [%clk 0:29:34] } 33. Kg2 { [%eval 0.1] [%clk 0:52:55] } 33... Bd7 { [%eval 0.11] [%clk 0:29:25] } 34. Kg3 { [%eval 0.05] [%clk 0:51:58] } 34... Kg6 { [%eval 0.08] [%clk 0:29:13] } 35. Rf3 { [%eval 0.0] [%clk 0:50:39] } 35... Kg7 { [%eval 0.02] [%clk 0:28:28] } 36. R1f2 { [%eval 0.0] [%clk 0:49:29] } 36... Kg6 { [%eval 0.02] [%clk 0:27:57] } 37. Bc1 { [%eval 0.02] [%clk 0:47:04] } 37... Kg7 { [%eval 0.0] [%clk 0:27:06] } 38. Ra3 { [%eval 0.0] [%clk 0:42:39] } 38... Kg6 { [%eval 0.0] [%clk 0:25:35] } 39. Raf3 { [%eval 0.0] [%clk 0:39:55] } 39... Kg7 { [%eval 0.0] [%clk 0:25:05] } 40. Bd2 { [%eval 0.0] [%clk 1:10:06] } 40... Kg6 { [%eval 0.03] [%clk 0:55:00] } 41. Bd1 { [%eval 0.0] [%clk 1:07:19] } 41... Kg7 { [%eval 0.0] [%clk 0:54:51] } 42. Kg2 { [%eval 0.0] [%clk 1:06:46] } 42... Kg6 { [%eval 0.1] [%clk 0:54:13] } 43. Be3 { [%eval 0.0] [%clk 1:03:31] } 43... Kg7 { [%eval 0.0] [%clk 0:51:46] } 44. Be2 { [%eval -0.01] [%clk 1:03:58] } 44... Be8 { [%eval 0.03] [%clk 0:50:54] } 45. Bd3 { [%eval 0.0] [%clk 1:03:45] } 45... Bd7 { [%eval 0.0] [%clk 0:51:09] } 46. Kf1 { [%eval -0.02] [%clk 1:03:31] } 46... Kg6 { [%eval 0.08] [%clk 0:50:44] } 47. Ke1 { [%eval 0.08] [%clk 1:02:07] } 47... Kg7 { [%eval 0.0] [%clk 0:49:55] } 48. Kd2 { [%eval 0.0] [%clk 1:02:06] } 48... Kg6 { [%eval 0.0] [%clk 0:37:36] } 49. Kc3 { [%eval 0.0] [%clk 1:01:48] } 49... Kg7 { [%eval 0.01] [%clk 0:38:04] } 50. Kb4 { [%eval 0.0] [%clk 1:01:52] } 50... Kg6 { [%eval 0.0] [%clk 0:37:53] } 51. Bc2 { [%eval 0.0] [%clk 1:02:01] } 51... Kg7 { [%eval 0.0] [%clk 0:38:07] } 52. Bd2 { [%eval 0.03] [%clk 1:01:29] } 52... Ra7 { [%eval 0.0] [%clk 0:37:14] } 53. Ra3 { [%eval 0.0] [%clk 1:00:39] } 53... Rfa8 { [%eval 0.0] [%clk 0:33:21] } 54. Raf3 { [%eval 0.0] [%clk 0:56:46] } 54... Rf8 { [%eval 0.0] [%clk 0:33:49] } 55. Rf1 { [%eval 0.0] [%clk 0:57:02] } 55... Ra6 { [%eval 0.0] [%clk 0:32:36] } 56. Ra3 { [%eval 0.0] [%clk 0:52:18] } 56... Rfa8 { [%eval 0.0] [%clk 0:33:04] } 57. h4 { [%eval 0.0] [%clk 0:50:35] } 57... gxh4 { [%eval 0.0] [%clk 0:27:53] } 58. Raf3? { [%eval -1.43] } { Mistake. Bxh6+ was best. } { [%clk 0:45:20] } 58... Rf8 { [%eval -1.56] [%clk 0:28:21] } 59. g5 { [%eval -1.08] [%clk 0:45:34] } 59... Bxg5 { [%eval -1.26] [%clk 0:28:30] } 60. Rxf8 { [%eval -1.65] [%clk 0:45:57] } 60... Bxd2+ { [%eval -1.57] [%clk 0:28:56] } 61. Ka3 { [%eval -1.24] [%clk 0:46:22] } 61... Bf4 { [%eval -1.29] [%clk 0:28:33] } 62. Rd8 { [%eval -1.51] [%clk 0:46:12] } 62... Bg4 { [%eval -1.65] [%clk 0:28:50] } 63. Rg1 { [%eval -1.92] [%clk 0:39:14] } 63... h5 { [%eval -1.85] [%clk 0:27:43] } 64. Rd7+? { [%eval -3.95] } { Mistake. b4 was best. } { [%clk 0:38:44] } 64... Kh6 { [%eval -3.87] [%clk 0:19:57] } 65. Rxc7 { [%eval -3.53] [%clk 0:39:00] } 65... h3 { [%eval -3.01] [%clk 0:20:10] } 66. Rh1 { [%eval -3.08] [%clk 0:34:08] } 66... h2 { [%eval -3.08] [%clk 0:20:29] } 67. Bd1 { [%eval -2.94] [%clk 0:33:50] } 67... Ra8 { [%eval -3.31] [%clk 0:17:16] } 68. Rc6 { [%eval -3.3] [%clk 0:33:41] } 68... Kg5 { [%eval -3.46] [%clk 0:15:55] } 69. c5?! { [%eval -4.79] } { Inaccuracy. Kb4 was best. } { [%clk 0:30:20] } 69... bxc5 { [%eval -4.63] [%clk 0:13:36] } 70. Rxd6 { [%eval -4.62] [%clk 0:30:38] } 70... Kh4 { [%eval -4.68] [%clk 0:12:13] } 71. Rg6 { [%eval -5.51] [%clk 0:29:53] } 71... Kh3 { [%eval -5.42] [%clk 0:10:57] } 72. d6 { [%eval -5.61] [%clk 0:28:26] } 72... Kg2 { [%eval -6.03] [%clk 0:10:32] } 73. Re1 { [%eval -6.88] [%clk 0:28:43] } 73... Bd2 { [%eval -7.12] [%clk 0:08:22] } 74. Re2+ { [%eval -6.93] [%clk 0:29:07] } 74... Kg3 { [%eval -6.72] [%clk 0:08:35] } 75. Rxd2 { [%eval -7.27] [%clk 0:29:28] } 75... h1=Q { [%eval -7.19] [%clk 0:08:58] } 76. Rd3+ { [%eval -7.2] [%clk 0:29:24] } 76... Kf4 { [%eval -7.55] [%clk 0:09:06] } 77. Bxg4 { [%eval -7.15] [%clk 0:29:42] } 77... hxg4 { [%clk 0:09:03] } 0-1