Sakai Michiharu

(酒井通温) Sakai Michiharu (1912-1997) was a Nihon Ki-in professional Go player who reached 8-dan in 1961. Retired in 1983 and promoted to 9 dan.

Author of Go Super Books number 7 How To Play Against The Stronger Player

His pupils were Sakai Isao (his son), Igami Hajime and Shirai Matsumi.