Event: Freestyle Chess Open A
Site: Karlsruhe, Germany
Date: 2025-04-20
White: Koehler, Christian Friedrich
WhiteElo: 2223
Black: Tang, Andrew
BlackTitle: GM
BlackElo: 2529
Result: 0-1
Variant: Fischerandom
TimeControl: 90 min per game + 30 sec per move

1. g3 { [%eval 0.1] [%clk 1:29:33] } 1... c6 { [%eval 0.13] [%clk 1:27:12] } 2. f4 { [%eval 0.0] [%clk 1:29:56] } 2... g5 { [%eval 0.0] [%clk 1:24:34] } 3. fxg5 { [%eval -0.29] [%clk 1:25:06] } 3... Qxb2 { [%eval -0.12] [%clk 1:24:54] } 4. Nb3 { [%eval -0.1] [%clk 1:25:23] } 4... Ne6 { [%eval 0.0] [%clk 1:16:58] } 5. h4?! { [%eval -0.87] } { Inaccuracy. c4 was best. } { [%clk 1:22:25] } 5... Nb6 { [%eval -1.09] [%clk 1:15:08] } 6. Bxb6+ { [%eval -1.16] [%clk 1:22:17] } 6... axb6 { [%eval -0.81] [%clk 1:15:31] } 7. c3 { [%eval -1.04] [%clk 1:16:29] } 7... Qa3 { [%eval -0.82] [%clk 1:06:15] } 8. e4?! { [%eval -1.49] } { Inaccuracy. Qg1 was best. } { [%clk 1:11:38] } 8... Rf8 { [%eval -1.34] [%clk 1:02:30] } 9. d4 { [%eval -1.51] [%clk 1:06:33] } 9... f6 { [%eval -1.21] [%clk 0:59:18] } 10. gxf6 { [%eval -1.23] [%clk 1:06:57] } 10... Rxf6 { [%eval -1.26] [%clk 0:59:43] } 11. e5 { [%eval -1.22] [%clk 1:04:57] } 11... Rf2 { [%eval -1.01] [%clk 0:56:08] } 12. Nfd2 { [%eval -1.0] [%clk 1:01:29] } 12... O-O-O { [%eval -1.0] [%clk 0:35:39] } 13. Rf1 { [%eval -1.18] [%clk 0:59:21] } 13... Rxf1+ { [%eval -1.19] [%clk 0:33:02] } 14. Qxf1 { [%eval -1.22] [%clk 0:59:38] } 14... Rf8 { [%eval -0.91] [%clk 0:31:04] } 15. Qe2 { [%eval -0.9] [%clk 0:57:43] } 15... Nc7 { [%eval -0.5] [%clk 0:26:58] } 16. Kc2? { [%eval -1.68] } { Mistake. Qh5 was best. } { [%clk 0:39:24] } 16... Be6 { [%eval -1.47] [%clk 0:22:10] } 17. Rf1 { [%eval -1.45] [%clk 0:38:59] } 17... Rg8 { [%eval -1.03] [%clk 0:12:54] } 18. Qd3 { [%eval -0.96] [%clk 0:36:24] } 18... Nd5 { [%eval -1.06] [%clk 0:16:56] } 19. Nc4 { [%eval -0.97] [%clk 0:28:22] } 19... Qa6 { [%eval -1.13] [%clk 0:14:17] } 20. Kb2 { [%eval -1.2] [%clk 0:25:58] } 20... Ba7 { [%eval -1.24] [%clk 0:09:29] } 21. Rf3 { [%eval -1.13] [%clk 0:26:34] } 21... b5 { [%eval -1.21] [%clk 0:05:15] } 22. Ncd2 { [%eval -1.2] [%clk 0:25:09] } 22... Kc7 { [%eval -1.29] [%clk 0:03:19] } 23. Qxh7 { [%eval -1.36] [%clk 0:23:15] } 23... Ra8 { [%eval -1.43] [%clk 0:03:10] } 24. Qd3 { [%eval -1.88] [%clk 0:20:33] } 24... Bb6 { [%eval -1.94] [%clk 0:03:12] } 25. Ka1 { [%eval -1.82] [%clk 0:17:38] } 25... Bg4?! { [%eval -1.1] } { Inaccuracy. Qa7 was best. } { [%clk 0:02:32] } 26. Rf1?? { [%eval -4.92] } { Blunder. Rf2 was best. } { [%clk 0:17:21] } 26... Be2 { [%eval -4.91] [%clk 0:02:42] } 27. Qc2 { [%eval -4.9] [%clk 0:15:26] } 27... Bxf1 { [%eval -5.0] [%clk 0:02:53] } 28. Nxf1 { [%eval -5.0] [%clk 0:15:55] } 28... Ba5 { [%eval -4.91] [%clk 0:03:16] } 29. Nxa5 { [%eval -4.93] [%clk 0:14:37] } 29... Qxa5 { [%eval -4.88] [%clk 0:03:44] } 30. c4?! { [%eval -6.36] } { Inaccuracy. Qd2 was best. } { [%clk 0:14:50] } 30... bxc4 { [%eval -6.37] [%clk 0:02:08] } 31. Qxc4 { [%eval -7.62] [%clk 0:15:07] } 31... Qe1 { [%eval -6.91] [%clk 0:02:36] } 32. Kb2 { [%eval -9.72] [%clk 0:14:38] } 32... Ra4 { [%eval -7.98] [%clk 0:02:56] } 33. Qd3? { [%eval #-6] } { Checkmate is now unavoidable. Qb3 was best. } { [%clk 0:13:09] } 33... Rb4+ { [%eval #-5] [%clk 0:03:24] } 34. Ka1 { [%eval #-5] [%clk 0:13:37] } 34... Nc3 { [%eval #-4] [%clk 0:03:47] } 0-1