The is a Japanese

Go competition This is a list of professional Go tournaments, for competitors in the board game of ''Go''. The tradition, initiated by the Honinbo Tournament in Japan, is for an event to be run annually, leading up to a title match and the award of a title for ...

. It is open only to players of the

Nihon Ki-in The Nihon Ki-in (), also known as the Japan Go Association, is the main organizational body for Go in Japan, overseeing Japan's professional system and issuing diplomas for amateur dan rankings. It is based in Tokyo. The other major Go associat ...

's Chubu branch located in

Nagoya is the largest city in the Chūbu region of Japan. It is the list of cities in Japan, fourth-most populous city in Japan, with a population of 2.3million in 2020, and the principal city of the Chūkyō metropolitan area, which is the List of ...

. The title match is a single game played between the reigning titleholder and a challenger. The winner's purse is 1,700,000 yen ($15,000).

Winners and runners-up

References

{{Japanese go titles Okan