Event: 30th World Senior Chess Championship 2022
Site: Assisi (ITA)
Date: 2022-11-17
White: Bogdanov, Valentin
Black: Koehler, Dr. Gerhard
Result: 0-1
ECO: D45
Opening: Semi-Slav Defense: Stoltz Variation
Variant: Standard

1. d4 { [%eval 0.0] [%clk 1:30:00] } 1... Nf6 { [%eval 0.23] [%clk 1:29:00] } 2. Nf3 { [%eval 0.12] [%clk 1:31:00] } 2... d5 { [%eval 0.25] [%clk 1:30:00] } 3. c4 { [%eval 0.16] [%clk 1:31:00] } 3... e6 { [%eval 0.17] [%clk 1:29:00] } 4. Nc3 { [%eval 0.0] [%clk 1:31:00] } 4... c6 { [%eval 0.2] [%clk 1:29:00] } 5. e3 { [%eval 0.23] [%clk 1:30:00] } 5... Nbd7 { [%eval 0.23] [%clk 1:29:00] } 6. Qc2 { [%eval 0.05] [%clk 1:29:00] } 6... Be7 { [%eval 0.39] [%clk 1:25:00] } 7. b3 { [%eval 0.24] [%clk 1:28:00] } 7... O-O { [%eval 0.37] [%clk 1:24:00] } 8. Bd3 { [%eval 0.58] [%clk 1:28:00] } 8... dxc4 { [%eval 0.39] [%clk 1:14:00] } 9. bxc4 { [%eval 0.43] [%clk 1:27:00] } 9... c5 { [%eval 0.47] [%clk 1:14:00] } 10. O-O { [%eval 0.43] [%clk 1:23:00] } 10... cxd4 { [%eval 0.55] [%clk 1:13:00] } 11. exd4 { [%eval 0.37] [%clk 1:19:00] } 11... b6 { [%eval 0.6] [%clk 1:08:00] } 12. Bb2 { [%eval 0.4] [%clk 1:16:00] } 12... Bb7 { [%eval 0.18] [%clk 1:06:00] } 13. Ne5 { [%eval 0.26] [%clk 1:14:00] } 13... Rc8 { [%eval 0.27] [%clk 1:05:00] } 14. Rad1 { [%eval 0.38] [%clk 1:14:00] } 14... Re8 { [%eval 0.42] [%clk 1:03:00] } 15. Qe2 { [%eval 0.22] [%clk 1:03:00] } 15... Nf8 { [%eval 0.06] [%clk 1:03:00] } 16. d5?! { [%eval -0.54] } { Inaccuracy. Bc2 was best. } { [%clk 0:59:00] } 16... exd5 { [%eval -0.16] [%clk 0:58:00] } 17. cxd5 { [%eval -0.51] [%clk 0:55:00] } 17... Bb4?! { [%eval 0.52] } { Inaccuracy. Bc5 was best. } { [%clk 0:45:00] } 18. Ne4 { [%eval 0.12] [%clk 0:48:00] } 18... Nxe4 { [%eval 0.23] [%clk 0:44:00] } 19. Qxe4 { [%eval 0.06] [%clk 0:43:00] } 19... Bd6 { [%eval 0.26] [%clk 0:42:00] } 20. Bb5?! { [%eval -0.38] } { Inaccuracy. Nc6 was best. } { [%clk 0:38:00] } 20... Re7 { [%eval -0.26] [%clk 0:36:00] } 21. Qf5 { [%eval -0.42] [%clk 0:38:00] } 21... Rc5?! { [%eval 0.64] } { Inaccuracy. Bxe5 was best. } { [%clk 0:33:00] } 22. Nc6 { [%eval 0.66] [%clk 0:35:00] } 22... Bxc6 { [%eval 0.55] [%clk 0:34:00] } 23. Bxc6 { [%eval 0.54] [%clk 0:35:00] } 23... Qc7 { [%eval 0.66] [%clk 0:32:00] } 24. Qh3?! { [%eval 0.0] } { Inaccuracy. g3 was best. } { [%clk 0:34:00] } 24... Rc2 { [%eval -0.02] [%clk 0:32:00] } 25. Bd4 { [%eval 0.0] [%clk 0:28:00] } 25... Ng6 { [%eval 0.3] [%clk 0:28:00] } 26. g3?! { [%eval -0.28] } { Inaccuracy. Qf5 was best. } { [%clk 0:28:00] } 26... Rxa2 { [%eval 0.0] [%clk 0:24:00] } 27. Qf5 { [%eval 0.19] [%clk 0:27:00] } 27... Ra5 { [%eval 0.1] [%clk 0:18:53] } 28. Qb1?? { [%eval -1.63] } { Blunder. Rc1 was best. } { [%clk 0:25:00] } 28... Ra3? { [%eval 0.0] } { Mistake. Ne5 was best. } { [%clk 0:17:29] } 29. Bb2?! { [%eval -0.6] } { Inaccuracy. Bb5 was best. } { [%clk 0:24:00] } 29... Rb3 { [%eval -0.28] [%clk 0:11:52] } 30. Qc2 { [%eval -0.5] [%clk 0:19:59] } 30... Rb4 { [%eval -0.58] [%clk 0:09:58] } 31. Rfe1 { [%eval -0.48] [%clk 0:19:45] } 31... Ne5 { [%eval -0.48] [%clk 0:08:02] } 32. Bxe5 { [%eval -0.56] [%clk 0:18:05] } 32... Rxe5 { [%eval -0.71] [%clk 0:07:47] } 33. Rxe5 { [%eval -0.52] [%clk 0:16:50] } 33... Bxe5 { [%eval -0.67] [%clk 0:08:14] } 34. Re1 { [%eval -0.87] [%clk 0:16:25] } 34... g6 { [%eval -0.81] [%clk 0:06:16] } 35. Qd2 { [%clk 0:15:42] } 35... Rb2 { [%clk 0:05:21] } 36. Qh6 { [%clk 0:15:22] } 36... Qd6 { [%clk 0:05:27] } 37. Qe3 { [%clk 0:10:07] } 37... Qf6 { [%clk 0:04:22] } 38. Re2 { [%clk 0:09:57] } 38... Rxe2 { [%clk 0:04:05] } 39. Qxe2 { [%clk 0:10:25] } 39... Bd4 { [%clk 0:04:04] } 40. Kg2 { [%clk 0:10:16] } 40... Bc5 { [%clk 0:02:10] } 41. f4 { [%clk 0:09:31] } 41... a5 { [%clk 0:32:00] } 42. Qe5 { [%clk 0:28:00] } 42... Qxe5 { [%clk 0:26:00] } 43. fxe5 { [%clk 0:28:00] } 43... Bd4 { [%clk 0:27:00] } 44. e6 { [%clk 0:23:00] } 44... fxe6 { [%clk 0:26:00] } 45. dxe6 { [%clk 0:23:00] } 45... Kf8 { [%clk 0:26:00] } 46. Kf3 { [%clk 0:23:00] } 46... Ke7 { [%clk 0:26:00] } 47. Bd7 { [%clk 0:22:00] } 47... Kd6 { [%clk 0:26:00] } 48. Ke4 { [%clk 0:22:00] } 48... Bf6 { [%clk 0:26:00] } 49. Kd3 { [%clk 0:18:13] } 49... Kc5 { [%clk 0:27:00] } 50. Kc2 { [%clk 0:17:24] } 50... Kc4 { [%clk 0:27:00] } 51. Ba4 { [%clk 0:17:27] } 51... b5 { [%clk 0:27:00] } 52. Bb3+ { [%clk 0:17:33] } 52... Kb4 { [%clk 0:24:00] } 53. h4 { [%clk 0:17:37] } 53... a4 { [%clk 0:24:00] } 54. Bd5 { [%clk 0:17:53] } 54... Ka3 0-1