Geumgwan Gaya List of professional Go tournaments Seo Yi-sook Flag of North Korea Ha Chan-seok Order of the National Flag Seo Bong-soo Yoo Chang-hyuk Cho Hun-hyun Lee Chang-ho Lee Yong-yi
Geumgwan Gaya List of professional Go tournaments Seo Yi-sook Flag of North Korea Ha Chan-seok Order of the National Flag Seo Bong-soo Yoo Chang-hyuk Cho Hun-hyun Lee Chang-ho Lee Yong-yi