fullname hanja birth_place article_title affiliation revisedromanization birth_date residence rank image hangul name turnedpro
yoo changhyuk 劉昌赫 south korea , south korea yoo changhyuk
 hanguk kiwon yu changhyeok 25 april 1966 south korea south korea 9 dan yoo changhyuk cropped.jpg 유창혁 yoo changhyuk 1984
yoo changhyuk

yoo changhyuk -lrb- born april 25 , 1966 -rrb- is a professional go player in south korea .
