He is famous for his brilliant endgame plays, including a classic example of semedori (forcing an opponent to capture dead stones ), exhibited in a 1705 game against Yasui Senkaku. This was in a grudge match, since there had been bad blood between the Honinbos and Yasuis since Yasui Sanchi was turned out of his official positions in favour of Hon'inbō Dōsaku.
He is renowned for his masterful endgame strategies, including a notable instance of semedori (forcing an opponent to capture dead stones), demonstrated in a 1705 game against Yasui Senkaku. This was part of a heated match due to longstanding animosity between the Honinbo and Yasui clans since Yasui Sanchi had been stripped of his official positions in favor of Honinbo Dōsaku.