Event: Round 8 | 65+: Valentin Bogdanov - Rainer Knaak
Site: https://lichess.org/study/BA91hgW4/gX3M7DZj
Date: 2022-11-23
White: Valentin Bogdanov
Black: Rainer Knaak
Result: 0-1
ECO: D31
Opening: Queen's Gambit Declined: Queen's Knight Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:57] } 1... d5 { [%eval 0.27] [%clk 1:30:53] } 2. c4 { [%eval 0.29] [%clk 1:31:18] } 2... e6 { [%eval 0.3] [%clk 1:31:13] } 3. Nc3 { [%eval 0.39] [%clk 1:31:38] } 3... Bb4 { [%eval 0.32] [%clk 1:31:16] } 4. Nf3 { [%eval 0.17] [%clk 1:30:40] } 4... dxc4 { [%eval 0.28] [%clk 1:31:00] } 5. g3 { [%eval -0.1] [%clk 1:24:36] } 5... Nf6 { [%eval -0.02] [%clk 1:29:01] } 6. Bg2 { [%eval 0.0] [%clk 1:24:42] } 6... O-O { [%eval 0.0] [%clk 1:28:39] } 7. O-O { [%eval -0.21] [%clk 1:23:41] } 7... Nc6 { [%eval -0.22] [%clk 1:25:47] } 8. e3 { [%eval -0.5] [%clk 1:17:50] } 8... Rb8 { [%eval -0.57] [%clk 1:23:08] } 9. Qe2 { [%eval -0.49] [%clk 1:09:32] } 9... b5 { [%eval -0.8] [%clk 1:21:46] } 10. Rd1 { [%eval -0.69] [%clk 1:09:37] } 10... a6 { [%eval -0.31] [%clk 1:02:32] } 11. e4 { [%eval -0.27] [%clk 1:00:40] } 11... Bb7 { [%eval 0.0] [%clk 0:56:38] } 12. Bg5 { [%eval -0.04] [%clk 0:52:24] } 12... h6 { [%eval -0.35] [%clk 0:50:12] } 13. Bxf6?! { [%eval -1.26] } { Inaccuracy. Bh4 was best. } { [%clk 0:51:30] } 13... Qxf6 { [%eval -1.11] [%clk 0:50:34] } 14. e5 { [%eval -1.59] [%clk 0:51:45] } 14... Qe7 { [%eval -1.78] [%clk 0:49:20] } 15. Ne4 { [%eval -2.12] [%clk 0:51:30] } 15... Rfd8 { [%eval -2.2] [%clk 0:45:27] } 16. Rac1 { [%eval -2.4] [%clk 0:49:30] } 16... Ba5 { [%eval -2.67] [%clk 0:40:10] } 17. Nc5 { [%eval -3.3] [%clk 0:43:00] } 17... Nb4?? { [%eval -0.81] } { Blunder. Nxd4 was best. } { [%clk 0:30:38] } 18. Nxb7?? { [%eval -2.81] } { Blunder. a3 was best. } { [%clk 0:40:02] } 18... Rxb7 { [%eval -2.8] [%clk 0:31:03] } 19. b3 { [%eval -3.32] [%clk 0:39:17] } 19... cxb3 { [%eval -3.25] [%clk 0:30:16] } 20. axb3 { [%eval -2.96] [%clk 0:39:33] } 20... Rbb8 { [%eval -3.0] [%clk 0:29:04] } 21. Ne1 { [%eval -3.15] [%clk 0:31:21] } 21... Bb6 { [%eval -3.53] [%clk 0:28:51] } 22. Qe4 { [%eval -3.95] [%clk 0:30:52] } 22... Rd7 { [%eval -3.97] [%clk 0:28:43] } 23. Rd2 { [%eval -3.91] [%clk 0:29:55] } 23... Rbd8 { [%eval -3.94] [%clk 0:25:24] } 24. Nf3 { [%eval -4.78] [%clk 0:29:31] } 24... Rd5?! { [%eval -3.41] } { Inaccuracy. c5 was best. } { [%clk 0:20:32] } 25. Bf1 { [%eval -3.2] [%clk 0:25:00] } 25... Qd7 { [%eval -3.83] [%clk 0:18:10] } 26. Rcd1 { [%eval -3.35] [%clk 0:23:21] } 26... Qe7 { [%eval -3.11] [%clk 0:16:43] } 27. h4 { [%eval -3.38] [%clk 0:18:23] } 27... c6 { [%eval -2.8] [%clk 0:15:11] } 28. h5?! { [%eval -3.71] } { Inaccuracy. Bd3 was best. } { [%clk 0:18:21] } 28... a5? { [%eval -2.07] } { Mistake. c5 was best. } { [%clk 0:15:19] } 29. Be2 { [%eval -1.79] [%clk 0:15:21] } 29... Ra8 { [%eval -1.89] [%clk 0:15:36] } 30. Ne1 { [%eval -2.02] [%clk 0:15:18] } 30... Qg5? { [%eval -0.58] } { Mistake. Qa7 was best. } { [%clk 0:09:22] } 31. Nc2 { [%eval -0.7] [%clk 0:13:52] } 31... Nxc2 { [%eval -0.58] [%clk 0:09:05] } 32. Rxc2 { [%eval -0.9] [%clk 0:14:01] } 32... Rad8?! { [%eval -0.07] } { Inaccuracy. Rc8 was best. } { [%clk 0:09:14] } 33. Rcd2? { [%eval -1.65] } { Mistake. Kg2 was best. } { [%clk 0:12:23] } 33... c5?! { [%eval -0.78] } { Inaccuracy. Qe7 was best. } { [%clk 0:08:10] } 34. Kg2 { [%eval -0.51] [%clk 0:11:57] } 34... cxd4? { [%eval 0.62] } { Mistake. Qf5 was best. } { [%clk 0:04:45] } 35. f4 { [%eval 0.63] [%clk 0:10:24] } 35... Qe7 { [%eval 0.6] [%clk 0:05:10] } 36. Bd3 { [%eval 0.6] [%clk 0:10:32] } 36... f5 { [%eval 0.5] [%clk 0:05:24] } 37. exf6 { [%eval 0.69] [%clk 0:10:12] } 37... Qxf6? { [%eval 2.34] } { Mistake. gxf6 was best. } { [%clk 0:05:51] } 38. Re1?? { [%eval 0.38] } { Blunder. Qh7+ was best. } { [%clk 0:08:29] } 38... Kf7?? { [%eval 2.31] } { Blunder. Qf5 was best. } { [%clk 0:04:20] } 39. Rc2? { [%eval 1.01] } { Mistake. Rde2 was best. } { [%clk 0:08:34] } 39... Bc5 { [%eval 2.51] [%clk 0:03:45] } 40. Rec1? { [%eval 0.99] } { Mistake. Qh7 was best. } { [%clk 0:08:06] } 40... Bd6 { [%eval 1.09] [%clk 0:03:59] } 41. Rc6 { [%eval 1.32] [%clk 0:00:59] } 41... Qe7? { [%eval 3.24] } { Mistake. Kf8 was best. } { [%clk 0:15:53] } 42. Qg6+ { [%eval 2.83] [%clk 0:28:43] } 42... Kf8 { [%eval 3.87] [%clk 0:16:07] } 43. Be4? { [%eval 2.18] } { Mistake. Qh7 was best. } { [%clk 0:26:06] } 43... Rc5 { [%eval 2.73] [%clk 0:14:23] } 44. R1xc5 { [%eval 2.17] [%clk 0:21:56] } 44... Bxc5 { [%eval 2.07] [%clk 0:14:47] } 45. Rxe6? { [%eval 0.5] } { Mistake. Qh7 was best. } { [%clk 0:21:11] } 45... Qf7 { [%eval 0.34] [%clk 0:15:07] } 46. Rc6 { [%eval -0.08] [%clk 0:19:13] } 46... Qxg6 { [%eval 0.0] [%clk 0:14:12] } 47. hxg6 { [%eval 0.0] [%clk 0:19:32] } 47... Be7 { [%eval 0.0] [%clk 0:14:35] } 48. Bd3 { [%eval 0.0] [%clk 0:18:37] } 48... a4 { [%eval -0.01] [%clk 0:14:59] } 49. bxa4 { [%eval 0.0] [%clk 0:18:08] } 49... bxa4 { [%eval 0.0] [%clk 0:15:23] } 50. Ra6 { [%eval 0.0] [%clk 0:18:18] } 50... a3 { [%eval 0.0] [%clk 0:15:47] } 51. Kf3 { [%eval -0.46] [%clk 0:17:59] } 51... Bc5 { [%eval -0.26] [%clk 0:12:08] } 52. Ra5 { [%eval -0.41] [%clk 0:15:47] } 52... Re8 { [%eval 0.0] [%clk 0:11:27] } 53. Bc4? { [%eval -1.32] } { Mistake. Rxc5 was best. } { [%clk 0:13:29] } 53... Re3+ { [%eval -0.93] [%clk 0:10:47] } 54. Kg4 { [%eval -1.62] [%clk 0:13:50] } 54... Bb6 { [%eval -1.61] [%clk 0:11:02] } 55. Ra6 { [%eval -1.83] [%clk 0:12:09] } 55... Rc3 { [%eval -1.89] [%clk 0:11:24] } 56. Rxb6?! { [%eval -2.62] } { Inaccuracy. Bf7 was best. } { [%clk 0:07:51] } 56... Rxc4 { [%eval -3.36] [%clk 0:11:51] } 57. Ra6 { [%eval -2.75] [%clk 0:08:01] } 57... Rc3 { [%eval -3.35] [%clk 0:12:13] } 58. Kf5?! { [%eval -4.63] } { Inaccuracy. Ra8+ was best. } { [%clk 0:07:29] } 58... Ke7?? { [%eval -0.66] } { Blunder. Rxg3 was best. } { [%clk 0:05:58] } 59. Ke4 { [%eval -0.45] [%clk 0:07:53] } 59... Rxg3 { [%eval -0.47] [%clk 0:04:21] } 60. Kxd4?? { [%eval -4.32] } { Blunder. Ra7+ was best. } { [%clk 0:08:11] } 60... h5 { [%eval -4.5] [%clk 0:04:43] } 61. Ke5 { [%eval -4.75] [%clk 0:07:11] } 61... h4 { [%eval -4.62] [%clk 0:03:35] } 62. Ra7+ { [%eval -4.9] [%clk 0:06:55] } 62... Kd8 { [%eval -4.86] [%clk 0:04:03] } 63. Kd4?! { [%eval -8.2] } { Inaccuracy. f5 was best. } 0-1