Event: Round 5: Koellner, Ruben Gideon - Shimanov, Aleksandr
Date: 2025-05-30
White: Koellner, Ruben Gideon
WhiteTitle: IM
WhiteElo: 2431
Black: Shimanov, Aleksandr
BlackTitle: GM
BlackElo: 2583
Result: 1/2-1/2
ECO: D04
Opening: Queen's Pawn Game: Colle System
Variant: Standard
TimeControl: 10+5

1. d4 { [%eval 0.17] [%clk 0:10:07] } 1... d5 { [%eval 0.2] [%clk 0:09:55] } 2. Nf3 { [%eval 0.08] [%clk 0:10:11] } 2... Nf6 { [%eval 0.11] [%clk 0:09:57] } 3. e3 { [%eval 0.0] [%clk 0:10:14] } 3... c6 { [%eval 0.23] [%clk 0:09:44] } 4. Nbd2 { [%eval 0.0] [%clk 0:10:15] } 4... Bf5 { [%eval 0.08] [%clk 0:09:32] } 5. Ne5 { [%eval -0.16] [%clk 0:10:16] } 5... Nbd7 { [%eval -0.21] [%clk 0:08:24] } 6. g4 { [%eval -0.31] [%clk 0:10:18] } 6... Be6 { [%eval -0.17] [%clk 0:08:28] } 7. h3 { [%eval -0.15] [%clk 0:10:21] } 7... h5 { [%eval -0.3] [%clk 0:08:09] } 8. Rg1 { [%eval -0.27] [%clk 0:10:20] } 8... hxg4 { [%eval -0.28] [%clk 0:08:08] } 9. hxg4 { [%eval -0.29] [%clk 0:10:24] } 9... g5 { [%eval -0.28] [%clk 0:07:38] } 10. Ndf3 { [%eval -0.7] [%clk 0:09:44] } 10... Nxe5 { [%eval -0.49] [%clk 0:07:27] } 11. dxe5 { [%eval -0.64] [%clk 0:07:43] } 11... Nxg4?! { [%eval 0.0] } { Inaccuracy. Ne4 was best. } { [%clk 0:05:02] } 12. Nxg5 { [%eval 0.11] [%clk 0:07:44] } 12... Nxe5 { [%eval 0.14] [%clk 0:04:38] } 13. Nxe6 { [%eval 0.07] [%clk 0:07:45] } 13... fxe6 { [%eval 0.05] [%clk 0:04:42] } 14. f4?! { [%eval -0.92] } { Inaccuracy. Bd2 was best. } { [%clk 0:07:44] } 14... Nf7?! { [%eval -0.03] } { Inaccuracy. Nc4 was best. } { [%clk 0:03:27] } 15. Bd3 { [%eval -0.45] [%clk 0:06:54] } 15... Nd6?! { [%eval 0.17] } { Inaccuracy. e5 was best. } { [%clk 0:03:31] } 16. Qg4 { [%eval 0.05] [%clk 0:06:18] } 16... Rh6?! { [%eval 0.63] } { Inaccuracy. Qb6 was best. } { [%clk 0:03:19] } 17. Bd2 { [%eval 0.59] [%clk 0:05:25] } 17... Qb6 { [%eval 0.62] [%clk 0:03:12] } 18. O-O-O { [%eval 0.78] [%clk 0:04:51] } 18... O-O-O { [%eval 0.77] [%clk 0:03:15] } 19. Rh1 { [%eval 0.68] [%clk 0:03:58] } 19... Rf6 { [%eval 0.77] [%clk 0:02:19] } 20. Rde1 { [%eval 0.52] [%clk 0:03:01] } 20... c5?! { [%eval 1.49] } { Inaccuracy. Nf5 was best. } { [%clk 0:00:54] } 21. Bc3 { [%eval 1.57] [%clk 0:02:46] } 21... d4 { [%eval 1.57] [%clk 0:00:28] } 22. exd4 { [%eval 1.65] [%clk 0:02:43] } 22... cxd4 { [%eval 1.73] [%clk 0:00:32] } 23. Rxe6 { [%eval 1.65] [%clk 0:02:36] } 23... Rxe6 { [%eval 1.71] [%clk 0:00:14] } 24. Qxe6+ { [%eval 1.8] [%clk 0:02:39] } 24... Kb8 { [%eval 1.91] [%clk 0:00:19] } 25. Bd2 { [%eval 1.54] [%clk 0:02:34] } 25... Nc8 { [%eval 1.58] [%clk 0:00:20] } 26. Qe5+ { [%eval 1.61] [%clk 0:02:16] } 26... Qd6 { [%eval 1.82] [%clk 0:00:19] } 27. Qe4? { [%eval 0.29] } { Mistake. Rh7 was best. } { [%clk 0:00:54] } 27... Bg7 { [%eval 0.41] [%clk 0:00:19] } 28. f5 { [%eval 0.32] [%clk 0:00:47] } 28... Ka8 { [%eval 0.29] [%clk 0:00:19] } 29. Re1 { [%eval 0.31] [%clk 0:00:37] } 29... Bf6 { [%eval 0.31] [%clk 0:00:22] } 30. Qf3 { [%eval 0.11] [%clk 0:00:30] } 30... Qd5 { [%eval 0.25] [%clk 0:00:17] } 31. Qxd5 { [%eval 0.23] [%clk 0:00:20] } 31... Rxd5 { [%eval 0.27] [%clk 0:00:21] } 32. Rg1 { [%eval 0.12] [%clk 0:00:22] } 32... Rd8 { [%eval 0.17] [%clk 0:00:26] } 33. Kd1 { [%eval 0.07] [%clk 0:00:16] } 33... Nd6 { [%eval 0.36] [%clk 0:00:20] } 34. a4 { [%eval 0.18] [%clk 0:00:20] } 34... a6 { [%eval 0.22] [%clk 0:00:23] } 35. Ba5 { [%eval 0.12] [%clk 0:00:17] } 35... Rh8 { [%eval 0.51] [%clk 0:00:22] } 36. Bb6 { [%eval 0.1] [%clk 0:00:19] } 36... Kb8 { [%eval 0.12] [%clk 0:00:12] } 37. Rg4 { [%eval 0.14] [%clk 0:00:15] } 37... Nf7 { [%eval 0.19] [%clk 0:00:07] } 38. Bxd4 { [%eval 0.0] [%clk 0:00:12] } 38... Ne5 { [%eval 0.1] [%clk 0:00:11] } 39. Re4 { [%eval 0.02] [%clk 0:00:08] } 39... Rh1+ { [%eval 0.0] [%clk 0:00:14] } 40. Ke2 { [%eval 0.0] [%clk 0:00:11] } 40... Rh2+ { [%eval 0.0] [%clk 0:00:16] } 41. Kd1 { [%eval 0.0] [%clk 0:00:08] } 41... Nxd3 { [%eval 0.0] [%clk 0:00:07] } 42. cxd3 { [%eval 0.0] [%clk 0:00:10] } 42... Bxd4 { [%eval 0.0] [%clk 0:00:09] } 43. Rxd4 { [%eval 0.0] [%clk 0:00:14] } 43... Rxb2 { [%eval 0.0] [%clk 0:00:12] } 44. Re4 { [%eval 0.0] [%clk 0:00:10] } 44... Rf2 { [%eval 0.0] [%clk 0:00:15] } 45. Rxe7 { [%eval 0.0] [%clk 0:00:10] } 45... Rxf5 { [%eval 0.0] [%clk 0:00:19] } 46. Kc2 { [%eval 0.0] [%clk 0:00:12] } 46... Rf4 { [%eval 0.0] [%clk 0:00:21] } 1/2-1/2