| Koichi Kobayashi | |
| Fullname: | Koichi Kobayashi |
| Kanji: | 小林光一 |
| Birth Date: | 10 September 1952 |
| Birth Place: | Asahikawa City, Japan |
| Residence: | Tokyo, Japan |
| Teacher: | Kitani Minoru |
| Turnedpro: | 1967 |
| Rank: | 9 dan |
| Affiliation: | Nihon Ki-in |
is a Japanese Go player. He is one of the 'Six Supers' who championed Japanese Go in the last three decades of Japanese Go.
Koichi Kobayashi was born in Asahikawa, Japan. In 1965, he came to Tokyo to be a disciple of Minoru Kitani.[1] He studied along with Cho Chikun, Masao Kato, Yoshio Ishida, and Masaki Takemiya. He went on to marry the daughter of his teacher, Reiko Kitani (1939–1996), a 6-dan who has won the All-Japan Women's Championship several times.[2] Together they had a daughter, Izumi Kobayashi, who is now one of the leading female Go players in Japan. Kobayashi is one of the few Go players who have won more than 1,200 professional games. Kobayashi's rivalry with Cho Chikun has continued for some time and they frequently play against each other.
Two years after joining Kitani Minoru's dojo, Kobayashi was promoted to be a 1-dan professional. His first tournament victory came from the 4th Shin Ei in 1972. In 1976, he won his first major title, Tengen.
Kobayashi is Honorary Kisei, Honorary Meijin and Honorary Gosei. He ranks #3 in the total number of titles in Japan.
| Domestic | |||
|---|---|---|---|
| Title | Wins | Runners-up | |
| 8 (1986–1993) | 2 (1994, 1999) | ||
| 8 (1985, 1988–1994) | 3 (1986, 1995, 1997) | ||
| 4 (1982, 1990, 1991, 1992) | |||
| 6 (1976, 1984–1986, 1998, 1999) | 5 (1981, 1987, 1990, 1995, 2000) | ||
| 2 (1985, 1992) | |||
| 5 (1984–1986, 1999, 2000) | 4 (1987, 1992, 1994, 2001) | ||
| 9 (1988–1993, 1999, 2001, 2002) | 3 (1994, 2000, 2003) | ||
| 1 (1999) | 1 (2004) | ||
| 3 (1997, 2002, 2003) | |||
| 2 (1986, 2004) | 1 (1997) | ||
| 2 (1976, 1977) | |||
| 3 (1995, 1999, 2004) | |||
| 1 (2008) | |||
| 3 (1994, 1997, 2001) | 2 (1987, 2002) | ||
| 4 (1972, 1981, 1986, 1997) | 5 (1982, 1983, 1985, 2000, 2001) | ||
| 2 (1972, 1975) | 2 (1974, 1979) | ||
| 3 (1972, 1974, 1976) | |||
| Total | 59 | 35 | |
| International | |||
| 1 (1997) | 1 (1995) | ||
| Total | 1 | 1 | |
| Continental | |||
| 5 (1988–1991, 1993) | 2 (1992, 1994) | ||
| 1 (2000) | 1 (1999) | ||
| 1 (1999) | |||
| Total | 7 | 3 | |
| Career total | |||
| Total | 67 | 39 | |