jp mahjongJapanese 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) WinningMahjong blog in English managed by a professional player in Japan. Free advice on how to play Japanese Mahjong better, strategy, Riichi theory and more.