Michio Ariyoshi (有吉 道夫, Ariyoshi Michio; July 27, 1935 – September 27, 2022) was a Japanese professional shogi player who achieved the rank of 9-dan. He authored a Tsume shogi book titled "Tsume shogi 121 sen(詰将棋121選)".
Source: “Michio Ariyoshi”, English Wikipedia (CC BY-SA 4.0), excerpt