Cheong Su-hyeon
Cheong Su-hyeon (also written Jeong Soo-hyun) is a Korean professional.
Born 1956. 9 dan in 1997. Mr Cheong is a co-author, with Janice Kim 3 dan, of the Learn To Play Go Series.
In 2013-08-06 he reached 700 wins (25th Korean professional player).
In 2004, he was dean of the Department of Baduk Studies at Myongji University. It's unclear whether he still holds this position.