Cheong Su-hyeon (also written Jeong Soo-hyun ), Korean pro.
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).
Dean of the Department of Baduk Studies at Myeongji University.