Speed II
4000 XP
Finish a collection of 11k or lower with an avg. time of under 10 seconds.*
Uncommon
*The collection must contain at least 100 problems.
Recently completed by
Anežka Bukovská 1d, 
Marcello Virzì 12k, 
Michael Traut 1k, 
sango chan 7k, 
chayanat hongnueng (n/a) 3k
and 1154 others.
