Honinbo Sanetsu

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Hon'inbō San'etsu
Full name Hon'inbō San'etsu
Kanji 本因坊算悦
Born 1611
Died 1658
Teacher Honinbo Sansa,
Nakamura Doseki
Rank 8 dan

Hon'inbō Sanetsu (本因坊算悦, 1611–1658) was a professional Go player, and second head of the Honinbo house.


Sanetsu was the second Honinbo. A minor at the time of Honinbo Sansa's death, he inherited a difficult situation since he could not receive the official allowance for the house. Sansa had asked Nakamura Doseki to act as Sanetsu's guardian, and through Doseki's good offices an annual 30 koku of rice was negotiated.[1] During his minority the position of head of the Honinbo house was in abeyance, so that the house notionally did not exist.

He played in an international match, giving Peichin Tsuhanoko of the Ryukyu Kingdom a two-stone handicap, when the latter came to Japan with a Ryukyuan embassy in 1634.[2]

The high point of his professional career came in a challenge match against Yasui Sanchi. From 1645 to 1653 they played six games of oshirogo, but the result was 3-3. Neither player therefore made the step up from 8 dan to Meijin.[3]


  1. ^ Go Monthly Review 1963/5 p.53
  2. ^ http://www.gogod.demon.co.uk/NewInGo/Firsts_intl.htm
  3. ^ ibid.
Preceded by
Honinbo Sansa
Succeeded by
Honinbo Doetsu

External links[edit]