Achievement: Solve 10 5d problems

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Solve 10 5d problems

Solve 10 5d problems.

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Wolland 3k, Bibigul Arzybaeva 2k, Vyacheslav 2k, salu 1d, pirat 2k, Korablik 1d, x0000 3d, Tal Michaeli 4d, Daviid 6d, JohnSmithGo 2d

and 73 others.