noun
Japanese rules (of Go)
Refers specifically to the Japanese rule set for the board game Go, often contrasted with Chinese rules (中国ルール).
See also: 中国ルール
プロの囲碁の試合は日本ルールで行われます。
Professional Go matches are played under Japanese rules.
日本ルールと中国ルールでは、終局の判定が少し違います。
The end-of-game judgment differs slightly between Japanese rules and Chinese rules.