fullname kanji hanja mccunereischauer kana birth_place teacher article_title affiliation revisedromanization birth_date residence rank hangul name turnedpro
cho sonjin 趙善津 趙善津 cho sŏn-chin チョウソンジン south korea takeo ando cho sonjin
 nihon ki-in jo seon-jin 18 april 1970 japan tokyo , japan 9 dan 조선진 cho sonjin 1984
cho sonjin

cho sonjin -lrb- born april 18 , 1970 -rrb- is a professional go player .
cho was born in south korea , but moved to japan at age 12 in order to become a professional .
he accomplishing his goal two years later in 1984 .
he was promoted to 9 dan in 1998 .
in 1999 , he defeated cho chikun in the honinbo , ending chikun 's 10-year run with the title .
