Yasui Sanchi
In this Japanese name, the family name is "Yasui".
Yasui Sanchi (安井算知, 1617-1703) was a Japanese professional go player, and second head of the Yasui house.
He became Meijin-godokoro in 1668. It has always been said[1] that this promotion was achieved by a backstairs route, with influence exerted by the head of the Matsudaira clan. A related anecdote[1] has Honinbo Sanetsu facing down Lord Matsudaira during an earlier official oshirogo against Sanchi.
The Honinbo house did not take this lying down. From 1668 to 1675 Honinbo Doetsu played a twenty game match against Sanchi (they had played in 1649, but after that there was a dearth of competitive games). Doetsu had the better of it with Black, earning the right to a game with White (as at sen-ai-sen).
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| Preceded by Nakamura Doseki |
Meijin 1668–1676 |
Succeeded by Honinbo Dosaku |
| Preceded by Yasui Santetsu |
Yasui house head 1644–1696 |
Succeeded by Yasui Chitetsu |