Achievement: Speed II

Uncommon

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Speed II

Finish a collection of 11k or lower with an avg. time of under 10 seconds.*

*The collection must contain at least 100 problems.

Recently completed by

Алёна Киреева 10k, Daler 13k, Sans Francisco 3k, Софья Одородько 4k, kgdavid 8k, Ada 6k, Маргарян Вардан 2k, Sebastian Lindström 6k, Vinceuji 1k, Kirill Nech 1k

and 937 others.