Achievement: Speed IV

Uncommon

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Speed IV

Finish a collection between 10k and 8k with an avg. time of under 18 seconds.*

*The collection must contain at least 100 problems.

Recently completed by

Babaykago 4k, TemirNiazbekov 1k, Lincoln Liu 3k, Алексей Пирожков 5k, jonathan lardillier 3k, Noir 2d, gughi 1d, Irina 8k, AndreiChertkov 4k, Tsummegoo 4k

and 537 others.