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
Simon Fadda 6k, 
Carolina Feng 12k, 
Артём Козел 9k, 
Арсений 9k,
and 1167 others.
