Event: Norwegian Championship 2021
Site: Oslo, Norway
Date: 2021-07-07
White: Ostenstad, Berge
WhiteTitle: GM
WhiteElo: 2451
Black: Haldorsen, Benjamin
BlackTitle: IM
BlackElo: 2477
Result: 1-0
ECO: A61
Opening: Benoni Defense: Knight's Tour Variation
Variant: Standard
TimeControl: 40/5400+30:1800+30

1. d4 { [%eval 0.0] [%clk 1:30:56] } 1... Nf6 { [%eval 0.19] [%clk 1:30:34] } 2. c4 { [%eval 0.11] [%clk 1:31:13] } 2... c5 { [%eval 0.39] [%clk 1:30:43] } 3. d5 { [%eval 0.52] [%clk 1:31:25] } 3... e6 { [%eval 0.8] [%clk 1:30:50] } 4. Nc3 { [%eval 0.48] [%clk 1:31:34] } 4... exd5 { [%eval 1.01] [%clk 1:31:11] } 5. cxd5 { [%eval 0.94] [%clk 1:32:00] } 5... d6 { [%eval 0.91] [%clk 1:31:33] } 6. Nf3 { [%eval 0.48] [%clk 1:31:36] } 6... g6 { [%eval 0.87] [%clk 1:31:33] } 7. Nd2 { [%eval 0.59] [%clk 1:31:20] } 7... Bg7 { [%eval 0.71] [%clk 1:31:46] } 8. e4 { [%eval 1.16] [%clk 1:31:46] } 8... O-O { [%eval 1.02] [%clk 1:31:32] } 9. Be2 { [%eval 1.06] [%clk 1:32:10] } 9... Ne8 { [%eval 1.08] [%clk 1:30:39] } 10. O-O { [%eval 1.03] [%clk 1:30:24] } 10... Na6 { [%eval 1.38] [%clk 1:27:47] } 11. Nc4 { [%eval 1.31] [%clk 1:16:47] } 11... f5 { [%eval 1.3] [%clk 1:26:39] } 12. exf5 { [%eval 0.94] [%clk 1:03:03] } 12... Bxf5 { [%eval 0.93] [%clk 1:26:52] } 13. Ne3 { [%eval 0.92] [%clk 1:02:59] } 13... Bd7 { [%eval 0.74] [%clk 1:18:32] } 14. Bd2 { [%eval 0.78] [%clk 1:01:32] } 14... Rb8 { [%eval 0.65] [%clk 1:15:46] } 15. a4 { [%eval 0.36] [%clk 0:57:31] } 15... Nb4 { [%eval 0.18] [%clk 1:11:51] } 16. Qb3 { [%eval 0.28] [%clk 0:57:02] } 16... a6 { [%eval 0.39] [%clk 1:08:10] } 17. a5 { [%eval 0.51] [%clk 0:43:36] } 17... b6 { [%eval 0.43] [%clk 0:59:52] } 18. axb6 { [%eval 0.45] [%clk 0:42:32] } 18... Rxb6 { [%eval 0.48] [%clk 1:00:05] } 19. Qd1 { [%eval 0.44] [%clk 0:39:49] } 19... Qe7 { [%eval 0.36] [%clk 0:53:47] } 20. Nc4 { [%eval 0.35] [%clk 0:34:16] } 20... Rb8 { [%eval 0.46] [%clk 0:53:51] } 21. Bg4?! { [%eval -0.21] } { Inaccuracy. Be3 was best. } { [%clk 0:34:25] } 21... Nf6?! { [%eval 0.37] } { Inaccuracy. Nd3 was best. } { [%clk 0:39:34] } 22. Bxd7 { [%eval 0.37] [%clk 0:33:49] } 22... Nxd7 { [%eval 0.47] [%clk 0:38:12] } 23. Re1 { [%eval 0.56] [%clk 0:21:04] } 23... Qh4 { [%eval 0.31] [%clk 0:32:17] } 24. Ne4 { [%eval 0.31] [%clk 0:20:22] } 24... h6?? { [%eval 2.23] } { Blunder. Bd4 was best. } { [%clk 0:24:51] } 25. Bc3 { [%eval 2.17] [%clk 0:17:04] } 25... Nf6 { [%eval 2.46] [%clk 0:23:02] } 26. g3 { [%eval 2.31] [%clk 0:15:21] } 26... Qh3?! { [%eval 3.07] } { Inaccuracy. Qh5 was best. } { [%clk 0:22:30] } 27. Nxf6+ { [%eval 3.0] [%clk 0:15:34] } 27... Bxf6 { [%eval 3.45] [%clk 0:22:51] } 28. Qd2 { [%eval 3.57] [%clk 0:09:39] } 28... Qf5 { [%eval 3.14] [%clk 0:19:02] } 29. Nxd6 { [%eval 3.3] [%clk 0:08:46] } 29... Bxc3 { [%eval 3.19] [%clk 0:15:40] } 30. bxc3 { [%eval 3.61] [%clk 0:08:52] } 30... Qxd5 { [%eval 3.37] [%clk 0:15:58] } 31. Red1 { [%eval 3.55] [%clk 0:06:18] } 31... Qxd2 { [%eval 3.34] [%clk 0:15:17] } 32. Rxd2 { [%eval 3.69] [%clk 0:06:44] } 32... Nc6 { [%eval 3.54] [%clk 0:15:39] } 33. Nc4 { [%eval 3.6] [%clk 0:06:56] } 33... Ra8 { [%eval 3.37] [%clk 0:11:20] } 34. Rd6 { [%eval 3.02] [%clk 0:06:49] } 34... Ne7 { [%eval 3.2] [%clk 0:11:45] } 35. Re6 { [%eval 2.9] [%clk 0:05:57] } 35... Ra7 { [%eval 3.57] [%clk 0:11:53] } 36. Raxa6 { [%eval 3.44] [%clk 0:05:24] } 36... Rxa6 { [%eval 3.49] [%clk 0:12:13] } 37. Rxa6 { [%eval 3.51] [%clk 0:05:51] } 37... Kg7 { [%eval 4.0] [%clk 0:08:01] } 38. Ra7 { [%eval 3.68] [%clk 0:04:37] } 38... Kf6 { [%eval 3.74] [%clk 0:08:03] } 39. Rc7? { [%eval 1.79] } { Mistake. Ra6+ was best. } { [%clk 0:03:40] } 39... Nd5?? { [%eval 4.16] } { Blunder. Rc8 was best. } { [%clk 0:04:59] } 40. Rc6+ { [%eval 3.73] [%clk 0:03:57] } 40... Kg7 { [%eval 3.86] [%clk 0:05:21] } 41. Ne5 { [%eval 3.6] [%clk 0:02:28] } 41... Nxc3 { [%eval 4.46] [%clk 0:27:36] } 42. Rxg6+?! { [%eval 3.56] } { Inaccuracy. Rc7+ was best. } { [%clk 0:19:53] } 42... Kh7 { [%eval 3.6] [%clk 0:27:55] } 43. Rc6 { [%eval 3.84] [%clk 0:20:15] } 43... Ne4 { [%eval 3.52] [%clk 0:27:49] } 44. f3 { [%eval 3.65] [%clk 0:18:56] } 44... Rf5 { [%eval 3.72] [%clk 0:27:20] } 45. f4 { [%eval 3.95] [%clk 0:18:59] } 45... h5 { [%eval 4.0] [%clk 0:27:06] } 46. Kg2 { [%eval 3.78] [%clk 0:19:20] } 46... Rf8 { [%eval 3.62] [%clk 0:26:29] } 47. Kf3 { [%eval 3.81] [%clk 0:19:24] } 47... Nd2+ { [%eval 3.76] [%clk 0:26:42] } 48. Ke2 { [%eval 3.74] [%clk 0:18:53] } 48... Nb3 { [%eval 4.05] [%clk 0:27:05] } 49. Kd3 { [%eval 3.82] [%clk 0:18:34] } 49... Rd8+ { [%eval 4.51] [%clk 0:27:07] } 50. Ke4 { [%eval 4.62] [%clk 0:16:18] } 50... h4 { [%eval 5.87] [%clk 0:26:16] } 51. Rc7+ { [%eval 6.05] [%clk 0:16:04] } 51... Kg8 { [%eval 6.04] [%clk 0:26:39] } 52. g4 { [%eval 6.11] [%clk 0:14:57] } 52... h3 { [%eval 6.26] [%clk 0:26:48] } 53. g5 { [%eval 6.46] [%clk 0:14:34] } 53... Nd2+ { [%eval 8.14] [%clk 0:25:18] } 54. Kf5 { [%eval 8.47] [%clk 0:13:48] } 54... Nf1? { [%eval #10] } { Checkmate is now unavoidable. Rd5 was best. } { [%clk 0:25:40] } 55. Ng4 { [%eval #9] [%clk 0:13:21] } 1-0