Event: Biel Chess Festival 2025
Date: 2025-07-21
White: Navarini, Vincent
WhiteElo: 1731
Black: Nergard, Ole-Kristian
BlackElo: 1837
Result: 1/2-1/2
ECO: E73
Opening: King's Indian Defense: Averbakh Variation, Flexible Defense
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:26:27] } 1... Nf6 { [%eval 0.19] [%clk 1:19:13] } 2. c4 { [%eval 0.18] [%clk 1:11:36] } 2... g6 { [%eval 0.28] [%clk 1:19:30] } 3. Nc3 { [%eval 0.18] [%clk 1:12:00] } 3... Bg7 { [%eval 0.51] [%clk 1:19:54] } 4. e4 { [%eval 0.4] [%clk 1:12:23] } 4... d6 { [%eval 0.55] [%clk 1:20:22] } 5. Be2 { [%eval 0.51] [%clk 1:12:42] } 5... O-O { [%eval 0.48] [%clk 1:20:45] } 6. Bg5 { [%eval 0.18] [%clk 1:13:00] } 6... h6 { [%eval 0.41] [%clk 1:19:52] } 7. Be3 { [%eval 0.4] [%clk 1:13:21] } 7... Nc6 { [%eval 0.78] [%clk 1:19:54] } 8. f3?! { [%eval -0.27] } { Inaccuracy. d5 was best. } { [%clk 1:07:20] } 8... a6? { [%eval 0.85] } { Mistake. e5 was best. } { [%clk 1:20:01] } 9. Qd2?! { [%eval 0.24] } { Inaccuracy. d5 was best. } { [%clk 1:06:25] } 9... Kh7 { [%eval 0.49] [%clk 1:20:28] } 10. g4?! { [%eval -0.21] } { Inaccuracy. Bf1 was best. } { [%clk 1:05:55] } 10... b5? { [%eval 0.95] } { Mistake. e5 was best. } { [%clk 1:19:43] } 11. cxb5 { [%eval 0.9] [%clk 1:03:42] } 11... axb5 { [%eval 0.67] [%clk 1:20:10] } 12. Bxb5 { [%eval 0.66] [%clk 0:59:32] } 12... Na5 { [%eval 1.02] [%clk 1:20:17] } 13. Qc2?! { [%eval 0.0] } { Inaccuracy. Rd1 was best. } { [%clk 0:56:53] } 13... c6 { [%eval -0.16] [%clk 1:20:34] } 14. Be2 { [%eval 0.03] [%clk 0:55:17] } 14... Qb6 { [%eval 0.4] [%clk 1:20:44] } 15. Rb1?! { [%eval -0.55] } { Inaccuracy. Rd1 was best. } { [%clk 0:51:14] } 15... Ba6 { [%eval -0.02] [%clk 1:15:50] } 16. Bxa6 { [%eval -0.05] [%clk 0:41:43] } 16... Rxa6?! { [%eval 0.53] } { Inaccuracy. Qxa6 was best. } { [%clk 1:14:56] } 17. Nge2 { [%eval 0.53] [%clk 0:42:06] } 17... Nc4 { [%eval 0.4] [%clk 1:11:58] } 18. Bf2 { [%eval 0.52] [%clk 0:42:12] } 18... Rb8? { [%eval 1.75] } { Mistake. Rfa8 was best. } { [%clk 1:11:15] } 19. O-O? { [%eval 0.41] } { Mistake. Qd3 was best. } { [%clk 0:41:41] } 19... Nd7? { [%eval 1.7] } { Mistake. Qa5 was best. } { [%clk 1:09:06] } 20. Qd3 { [%eval 1.73] [%clk 0:34:22] } 20... Na5?! { [%eval 2.67] } { Inaccuracy. d5 was best. } { [%clk 1:00:17] } 21. b4 { [%eval 2.69] [%clk 0:32:15] } 21... Nb7 { [%eval 2.68] [%clk 0:59:44] } 22. d5? { [%eval 1.05] } { Mistake. a4 was best. } { [%clk 0:25:40] } 22... c5?? { [%eval 3.73] } { Blunder. Ne5 was best. } { [%clk 1:00:04] } 23. bxc5 { [%eval 3.44] [%clk 0:23:30] } 23... Nbxc5 { [%eval 3.68] [%clk 0:58:15] } 24. Rxb6 { [%eval 3.64] [%clk 0:21:45] } 24... Raxb6 { [%eval 3.71] [%clk 0:58:37] } 25. Qe3 { [%eval 3.42] [%clk 0:17:10] } 25... Ne5 { [%eval 3.33] [%clk 0:58:36] } 26. Rd1 { [%eval 3.15] [%clk 0:17:10] } 26... Ned7 { [%eval 3.48] [%clk 0:58:36] } 27. Rf1 { [%eval 3.33] [%clk 0:17:10] } 27... Rb4 { [%eval 3.5] [%clk 0:58:06] } 28. Rd1 { [%eval 3.34] [%clk 0:16:22] } 28... Ne5 { [%eval 3.49] [%clk 0:57:17] } 29. Kg2 { [%eval 3.01] [%clk 0:09:43] } 29... Rb2 { [%eval 2.86] [%clk 0:55:24] } 30. g5 { [%eval 3.02] [%clk 0:05:49] } 30... hxg5 { [%eval 3.06] [%clk 0:55:02] } 31. Qxg5 { [%eval 3.11] [%clk 0:05:57] } 31... Bf6 { [%eval 3.69] [%clk 0:53:22] } 32. Qg3 { [%eval 3.58] [%clk 0:03:39] } 32... Ncd3 { [%eval 4.28] [%clk 0:52:51] } 33. Bd4 { [%eval 4.28] [%clk 0:03:02] } 33... R8b4 { [%eval 4.79] [%clk 0:52:09] } 34. Bxe5 { [%eval 4.16] [%clk 0:02:21] } 34... Nxe5 { [%eval 4.09] [%clk 0:52:04] } 35. Qh3+ { [%eval 3.74] [%clk 0:01:45] } 35... Kg7 { [%eval 3.91] [%clk 0:52:22] } 36. Kf1 { [%eval 3.71] [%clk 0:01:25] } 36... Nc4 { [%eval 3.49] [%clk 0:52:10] } 37. Rd3 { [%eval 2.91] [%clk 0:01:13] } 37... Rc2 { [%eval 2.83] [%clk 0:51:24] } 38. f4 { [%eval 2.8] [%clk 0:01:15] } 38... Rbb2 { [%eval 2.71] [%clk 0:51:26] } 39. Qg4? { [%eval 1.14] } { Mistake. Qg3 was best. } { [%clk 0:00:48] } 39... Bxc3 { [%eval 1.17] [%clk 0:50:31] } 40. Nxc3 { [%eval 1.24] [%clk 0:00:49] } 40... Rxh2? { [%eval 2.66] } { Mistake. Rc1+ was best. } { [%clk 0:50:07] } 41. Qg1?? { [%eval 0.59] } { Blunder. Kg1 was best. } { [%clk 0:00:45] } 41... Nd2+ { [%eval 0.47] [%clk 0:50:03] } 42. Ke1 { [%eval 0.64] [%clk 0:00:48] } 42... Rc2?? { [%eval 5.52] } { Blunder. Nb1 was best. } { [%clk 0:49:43] } 43. Qd4+ { [%eval 5.37] [%clk 0:00:37] } 43... e5 { [%eval 6.95] [%clk 0:49:36] } 44. Qg1?? { [%eval 0.0] } { Blunder. dxe6+ was best. } { [%clk 0:00:34] } 44... Nc4 { [%eval 0.0] [%clk 0:48:49] } 45. Rf3?? { [%eval #-4] } { Checkmate is now unavoidable. fxe5 was best. } { [%clk 0:11:37] } 45... Rcg2?? { [%eval -0.03] } { Lost forced checkmate sequence. Rc1+ was best. } { [%clk 1:15:52] } 46. Qa7 { [%clk 0:06:02] } 46... Nd2 { [%clk 1:15:17] } 47. Rf1 { [%clk 0:05:36] } 1/2-1/2