Achievement: Solve a 5d problem

Solve a 5d problem

850 XP

Solve a 5d problem.

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IvanIvo 2d, GKR 3k, Al. 4k, Vagabonk 1k, Bibi 3k, Kamilla10 3k, Кохэйри 5d, Wearep05 3k, Daniel 7k, Ulan 71 1d

and 342 others.