Career
He became Meijin-godokoro in 1668. A related anecdote 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).
