I didn't know this problem before, but I know it now
Author llel Created 2006-07-28
Difficulty 20 kyu (history) Source Book
AVG solve time 30 sec Stars 4.2  (20 votes)
User attempts 6207 / 12653 Collections 0 What Group?
Genre tesuji โ“’ Your attempts N/A
Similar problems
Created 2006-07-28
Source Book
Stars 4.2  (20 votes)
Collections 0 What Group?
Your attempts N/A