Achievement: Solve 10 2d problems

Solve 10 2d problems

800 XP

Solve 10 2d problems.

Recently completed by

Sorxyz43 1d, Борис Фанарь 1d, Goma1993 3k, Konkon 3k, Babaykago 4k, Natthanon 3k, Pavel J 1k, otari tchigladze 2k, Magzy Wagzy 8k, Bulat Murtazin 2k

and 342 others.