Achievement: Solve 10 1d problems
Solve 10 1d problems
500 XP
Solve 10 1d problems.
291 users completed this achievement.
Completed by Monstr, AlanYeray16, Kicyfroth, hexagon7, Martin,
Burkhon, Omicron, Rina Kim, SneezyFan , Hrafninn and more.
