Achievement: Solve 10 1d problems
Solve 10 1d problems
500 XP
Solve 10 1d problems.
253 users completed this achievement.
Completed by
promme, 
CRP ICIE, 
david prieto, Aron Vig, TwT, Higaki, icestones, WhiteSpy, AtsumiBogdan, verebgabor and more.
