Honinbo

Honinbo (or Hon'inbō, 本因坊) is a title used by the head of the Honinbo house or the winner of the Honinbo tournament.

Honinbo house

The Honinbo house was a school of Go players founded in 1612 and discontinued in 1940.

1st Hon'inbō, Sansa (算砂, 1612-1623) (also known as Nikkai)
2nd Hon'inbō, San'etsu (算悦, 1630-1658)
3rd Hon'inbō, Doetsu (道悦, 1658-1677)
4th Hon'inbō, Dōsaku (道策, 1677-1702)
- appointed successor, Dōteki (道的) (died early)
- appointed successor, Sakugen(策元)
5th Hon'inbō, Dōchi (道知, 1702-1727)
6th Hon'inbō, Chihaku (知伯, 1727-1733)
7th Hon'inbō, Shuhaku (秀伯, 1733-1741)
8th Hon'inbō, Hakugen (伯元, 1741-1754)
9th Hon'inbō, Satsugen (察元, 1754-1788)
10th Hon'inbō, Retsugen (烈元, 1788-1808)
11th Hon'inbō, Genjo (元丈, 1809-1827)
12th Hon'inbō, Jōwa (丈和, 1827-1839)
13th Hon'inbō, Josaku (丈策, 1839-1847)
14th Hon'inbō, Shuwa (秀和, 1847-1873)
- appointed successor, Shūsaku (秀策)
15th Hon'inbō, Shuetsu (秀悦, 1873-1879)
16th Hon'inbō, Shugen (秀元, 1879-1884)
17th Hon'inbō, Shuei (秀栄, 1884-1886)
18th Hon'inbō, Shuho (秀甫, 1886)
19th Hon'inbō, Shuei (秀栄, 1887-1907)
20th Hon'inbō, Shugen (秀元, 1907-1908)
21th Hon'inbō, Shūsai (秀哉, 1908-1940)

The titles 22nd-26th Honinbo are honorary titles.

The Honinbo Tournament is a yearly tournament for the title of Honinbo, held since the retirement of Shūsai.