Seo Bongsoo

Seo Bong-soo (; born February 1, 1953) is a professional Go player.

Biography Seo Bong-soo turned professional in 1970. By 1986 he became the 4th ever Korean 9 dan. He was Cho Hunhyun's biggest rival in the 1980s and frequently challenged Cho in major title events. During their career, Seo and Cho played against each other in more than 350 official games, which is a world record. He was a part of the "Gang of Four" of Korean Go in 1990s, the rest being Cho Hunhyun, Lee Chang-ho, and Yoo Changhyuk. He made an amazing run of wins in 1997 during the 5th SBS Cup. He played as fourth captain for Korea, and singlehandedly beat the entire Chinese team as well as what was left of the Japanese team—a winning streak of 9 straight games.

Titles Ranks #6-t in total number of titles in Korea.

Title Years Held Current 5 Wangwi 1975, 1980 Guksu 1986, 1987 KBS Baduk Wang 1983 Defunct 16 LG Refined Oil Cup 1999 Tong Yang Cup 1991 Chaegowi 1980 Gukgi 1980, 1988, 1992 Kiwang 1983, 1988 Myungin 1971–1974, 1976, 1978, 1983 International 1 Ing Cup 1992