Achievement: Speed XII

Rare

View Achievements

Speed XII

Finish a collection of 4k or higher with an avg. time of under 10 seconds.*

*The collection must contain at least 100 problems.

Recently completed by

dtiger 3k, Алёна Киреева 8k, MalikKarimov 3k, nepro 1k, StephaneLamy 2k, YuriyStepanovich 12d, Захарова Светлана 14k, Vic Beloshenco 7k, KoichiKai 4d, Dmitriy Vinogradov 3k

and 30 others.