Daizo Amano

Daizo Amano (天野大三) (1904–1982) was a pioneer in early riichi mahjong, and the author of multiple defining rulesets of Japanese mahjong.

Founding of the Japan Tile Association

In 1952, Amano wrote the first standardized rules of riichi mahjong and published them in the Hochi Shinbun newspaper. After the publication, someone connected with the Mahjong Association of Japan reported him to the police, but he was ultimately let go. Because of this incident, Amano left his role as the executive director of the association, and founded the Japan Tile Association 「日本牌棋院」 to focus on riichi.

Rulesets

• 1952 Hochi Rules
• 1957 Tokyo Rules
• 1958 Unified Rules
• 1963 Olympic Rules
• 1967 Modern Rules, which introduced 2 han bazoro, oka and uradora
• 1971 New Modern Rules
• 1978 New Hochi Rules

External link

• 日本牌棋院

Japan Tile Association in Japanese Wikipedia