Riichi Mahjong Yaku
Full Flush
Also known as: Chinitsu · Chiniso · 清一色
A hand composed entirely of one numbered suit, with no honor tiles.
Yaku value
Closed hand
6 Han
Open hand
5 Han
Requirements
Every tile must belong to one suit: Man, Pin, or Sou. Winds and dragons are not allowed.
Common scoring mistake
Any honor tile changes the pattern to Half Flush. Opening the hand reduces the value from 6 Han to 5 Han.
Values follow common modern Riichi rules. Local and tournament rules may differ, especially for double Yakuman.