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tarcon's achievement

Speed XI

Finish a collection of 4k or higher with an avg. time of under 20 seconds.*

Rare

*The collection must contain at least 100 problems.

Recently completed by

Thara Thanasit 2k,

ÐŸÐ Ðž Ð ÐžÐœÐ 2k,

JohnSmithGo 3d,

and 92 others.