jp mahjongIn Japanese mahjong, yaku (Japanese: ) is a condition that determines the value of the player's hand. It is essential to know the yaku for game strategyJapanese Mahjong How to play Mahjong. Riichi (1 fan) When your hand is ready and fully concealed, you can call Riichi. Daburu-Riichi (2 fan) First turn Riichi. Ippatsu (1 fan) Winning