Event: Round 7: Koellner, Ruben Gideon - Erdos, Viktor
Date: 2025-06-01
White: Koellner, Ruben Gideon
WhiteTitle: IM
WhiteElo: 2431
Black: Erdos, Viktor
BlackTitle: GM
BlackElo: 2525
Result: 0-1
ECO: D02
Opening: Queen's Pawn Game: Krause Variation
Variant: Standard
TimeControl: 10+5

1. d4 { [%eval 0.17] [%clk 0:10:08] } 1... d5 { [%eval 0.2] [%clk 0:10:08] } 2. Nf3 { [%eval 0.08] [%clk 0:10:12] } 2... c5 { [%eval 0.22] [%clk 0:10:12] } 3. e3 { [%eval 0.0] [%clk 0:10:14] } 3... Nf6 { [%eval 0.0] [%clk 0:10:15] } 4. Nbd2 { [%eval 0.0] [%clk 0:10:17] } 4... e6 { [%eval 0.06] [%clk 0:08:40] } 5. c3 { [%eval -0.02] [%clk 0:10:15] } 5... Nc6 { [%eval 0.0] [%clk 0:08:42] } 6. Bd3 { [%eval 0.0] [%clk 0:10:18] } 6... Qc7 { [%eval 0.28] [%clk 0:08:17] } 7. O-O { [%eval 0.11] [%clk 0:10:14] } 7... Be7 { [%eval 0.24] [%clk 0:08:09] } 8. dxc5 { [%eval 0.2] [%clk 0:10:17] } 8... a5 { [%eval 0.21] [%clk 0:08:11] } 9. e4 { [%eval 0.3] [%clk 0:10:16] } 9... Bxc5 { [%eval 0.31] [%clk 0:07:12] } 10. exd5 { [%eval 0.06] [%clk 0:10:10] } 10... exd5 { [%eval 0.34] [%clk 0:07:14] } 11. Re1+ { [%eval 0.33] [%clk 0:10:06] } 11... Be6 { [%eval 0.33] [%clk 0:07:00] } 12. Nb3 { [%eval 0.32] [%clk 0:10:02] } 12... Bb6 { [%eval 0.27] [%clk 0:06:56] } 13. Bg5 { [%eval 0.25] [%clk 0:09:20] } 13... Ne4 { [%eval 0.3] [%clk 0:05:44] } 14. Bxe4 { [%eval 0.27] [%clk 0:09:01] } 14... dxe4 { [%eval 0.26] [%clk 0:05:48] } 15. Rxe4 { [%eval 0.23] [%clk 0:09:04] } 15... O-O { [%eval 0.24] [%clk 0:05:50] } 16. Nbd4 { [%eval 0.18] [%clk 0:08:11] } 16... Nxd4 { [%eval 0.28] [%clk 0:05:43] } 17. Nxd4 { [%eval 0.09] [%clk 0:08:13] } 17... Bd5 { [%eval 0.59] [%clk 0:05:35] } 18. Rg4 { [%eval 0.52] [%clk 0:07:53] } 18... f5 { [%eval 0.55] [%clk 0:05:13] } 19. Bf4 { [%eval 0.72] [%clk 0:07:36] } 19... Qe7 { [%eval 0.71] [%clk 0:03:26] } 20. Rg3 { [%eval 0.75] [%clk 0:07:34] } 20... Qe4 { [%eval 1.2] [%clk 0:03:09] } 21. Qd2 { [%eval 0.96] [%clk 0:06:50] } 21... Rae8 { [%eval 1.07] [%clk 0:03:02] } 22. Bd6?! { [%eval 0.3] } { Inaccuracy. h3 was best. } { [%clk 0:05:11] } 22... Rf6 { [%eval 0.47] [%clk 0:02:26] } 23. f3?! { [%eval -0.48] } { Inaccuracy. Bf4 was best. } { [%clk 0:03:55] } 23... Qe2 { [%eval -0.53] [%clk 0:02:20] } 24. Bf4?! { [%eval -1.23] } { Inaccuracy. Qxe2 was best. } { [%clk 0:03:10] } 24... Qxd2 { [%eval -1.09] [%clk 0:02:19] } 25. Bxd2 { [%eval -1.15] [%clk 0:03:14] } 25... Re2 { [%eval -0.82] [%clk 0:02:12] } 26. Bg5 { [%eval -1.18] [%clk 0:02:31] } 26... f4?! { [%eval -0.1] } { Inaccuracy. Rfe6 was best. } { [%clk 0:00:36] } 27. Rg4?? { [%eval -3.02] } { Blunder. Bxf6 was best. } { [%clk 0:02:17] } 27... Rg6 { [%eval -2.95] [%clk 0:00:40] } 28. Kf1 { [%eval -3.51] [%clk 0:00:26] } 28... Rxb2 { [%eval -3.41] [%clk 0:00:43] } 29. Bxf4 { [%eval -3.34] [%clk 0:00:10] } 29... Rxg4 { [%eval -3.39] [%clk 0:00:31] } 30. fxg4 { [%eval -3.48] [%clk 0:00:14] } 30... Bxa2 { [%eval -3.55] [%clk 0:00:35] } 31. Bc1 { [%eval -4.08] [%clk 0:00:08] } 31... Bc4+ { [%eval -3.57] [%clk 0:00:24] } 32. Kg1 { [%eval -3.68] [%clk 0:00:07] } 32... Rc2 { [%eval -4.18] [%clk 0:00:27] } 33. Be3 { [%eval -4.05] [%clk 0:00:07] } 33... Rxc3 { [%eval -4.11] [%clk 0:00:28] } 34. Bf2 { [%eval -4.51] [%clk 0:00:11] } 34... a4 { [%eval -4.47] [%clk 0:00:27] } 35. h4 { [%eval -5.11] [%clk 0:00:13] } 35... a3 { [%eval -4.85] [%clk 0:00:30] } 36. Nf5 { [%eval -5.32] [%clk 0:00:08] } 36... Bxf2+ { [%eval -5.36] [%clk 0:00:30] } 37. Kxf2 { [%eval -5.31] [%clk 0:00:12] } 37... b5 { [%eval -5.19] [%clk 0:00:24] } 38. Re1 { [%eval -5.36] [%clk 0:00:15] } 38... a2 { [%eval -5.42] [%clk 0:00:24] } 39. Re8+ { [%eval -5.49] [%clk 0:00:18] } 39... Kf7 { [%eval -5.42] [%clk 0:00:28] } 40. Nd6+ { [%eval -5.49] [%clk 0:00:23] } 40... Kg6 { [%eval -5.54] [%clk 0:00:19] } 41. Ra8 { [%eval -5.52] [%clk 0:00:15] } 41... Rc1 { [%eval -5.28] [%clk 0:00:18] } 42. Rf8?! { [%eval -9.86] } { Inaccuracy. Nxc4 was best. } { [%clk 0:00:07] } 42... h5?! { [%eval -6.21] } { Inaccuracy. Rf1+ was best. } { [%clk 0:00:14] } 43. gxh5+ { [%eval -5.95] [%clk 0:00:09] } 43... Kh7 { [%eval -5.79] [%clk 0:00:15] } 44. Ne4?? { [%eval #-10] } { Checkmate is now unavoidable. Ra8 was best. } { [%clk 0:00:07] } 44... Rf1+ { [%eval #-9] [%clk 0:00:11] } 0-1