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 29 sec Stars 4.12  (17 votes)
User attempts 6098 / 12474 Collections 0 What Group?
Genre tesuji Your attempts N/A
Similar problems
Created 2006-07-28
Source Book
Stars 4.12  (17 votes)
Collections 0 What Group?
Your attempts N/A