Honinbo (competition)

The Honinbo (本因坊) is a Go competition and the oldest Go title in Japan. Sponsored by Mainichi Shimbun, the Honinbo pays out ¥32 million ($415,000 as of October 2011).[1]

Honinbo (competition)
Full nameHoninbo
Started1941
Honorary WinnersTakagawa Kaku
Sakata Eio
Ishida Yoshio
Cho Chikun
SponsorsMainichi Shimbun
Prize money32 million Yen
$415,000 USD
(as of 2 October 2011)
AffiliationNihon Ki-in

Rules

The holder of the title is challenged by whoever wins the round robin league. Players can get into the round robin league by going through many preliminary tournaments. Once there is a challenger to compete against the holder, the winner is decided through a best of seven match. The games are played over two days and each player is given eight hours of thinking time.[1] If a player qualifies for the Honinbo league, they are automatically promoted to 7 dan. If that same player wins the league, a promotion to 8 dan is given. If that same player goes on to winning the title, they are promoted to 9 dan, the highest rank.[2]

Past winners
YearWinnerScoreRunner-up
1941Riichi Sekiyama3–3*Shin Kato
1943Utaro Hashimoto2–0Riichi Sekiyama
1945Kaoru Iwamoto3–3
(2–0)**		Utaro Hashimoto
19473–2Minoru Kitani
1950Utaro Hashimoto4–0Kaoru Iwamoto
19514–3Eio Sakata
1952Kaku Takagawa4–1Utaro Hashimoto
19534–2Minoru Kitani
19544–2Masao Sugiuchi
19554–0Toshihiro Shimamura
19564–2
19574–2Hosai Fujisawa
19584–2Masao Sugiuchi
19594–2Minoru Kitani
19604–2Hideyuki Fujisawa
1961Eio Sakata4–1Kaku Takagawa
19624–1Dogen Handa
19634–2Kaku Takagawa
19644–0
19654–0Toshiro Yamabe
19664–0Hideyuki Fujisawa
19674–1Rin Kaiho
1968Rin Kaiho4–3Eio Sakata
19694–2Masao Kato
19704–0Eio Sakata
1971Yoshio Ishida4–2Rin Kaiho
19724–3
19734–0
19744–3Masaki Takemiya
19754–3Eio Sakata
1976Masaki Takemiya4–1Yoshio Ishida
1977Masao Kato4–1Masaki Takemiya
19784–3Yoshio Ishida
19794–1Rin Kaiho
1980Masaki Takemiya4–1Masao Kato
1981Cho Chikun4–2Masaki Takemiya
19824–2Koichi Kobayashi
1983Rin Kaiho4–3Cho Chikun
19844–1Shuzo Awaji
1985Masaki Takemiya4–1Rin Kaiho
19864–1Hiroshi Yamashiro
19874–0
19884–3Hideo Otake
1989Cho Chikun4–0Masaki Takemiya
19904–3Koichi Kobayashi
19914–2
19924–3
19934–1Hiroshi Yamashiro
19944–3Satoshi Kataoka
19954–1Masao Kato
19964–2Ryu Shikun
19974–0Masao Kato
19984–2O Rissei
1999Cho Sonjin4–2Cho Chikun
2000O Meien4–2Cho Sonjin
20014–3Cho U
2002Masao Kato4–2O Meien
2003Cho U4–2Masao Kato
20044–2Norimoto Yoda
2005Shinji Takao4–1Cho U
20064–2Kimio Yamada
20074–1Norimoto Yoda
2008Naoki Hane4–3Shinji Takao
20094–2
2010Keigo Yamashita4–1Naoki Hane
20114–3
2012Yuta Iyama4–3Keigo Yamashita
20134–3Shinji Takao
20144–1Atsushi Ida
20154–1Keigo Yamashita
20164–1Shinji Takao
20174–0Katsuya Motoki
20184–1Keigo Yamashita
20194–2Rin Kono
20204–1Toramaru Shibano

References
  1. "Go Tournament: Honinbo". gogameworld.com. Archived from the original on May 24, 2011. Retrieved 2 July 2011.
  2. "Abolition of the rating tournament". nihonkiin.or.jp. Retrieved 2 July 2011.
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