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สุรีภรณ์ แซ่ม้า's achievement

Speed II

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

Pinea Purpurea 17k,

Matas Leonas 7k,

Thomas Shehan 8k,

and 1144 others.