Career
Yoo Changhyuk was one of of Korea"s best Go players. Growing up without a teacher, Yoo became a professional in 1984 and was promoted to 9 dan in 1996.
Yoo Changhyuk was one of of Korea"s best Go players. Growing up without a teacher, Yoo became a professional in 1984 and was promoted to 9 dan in 1996.