Japanese mahjong

Japanese mahjong (Japanese: 麻雀, Hepburn: Mājan), also known as riichi mahjong (リーチ麻雀, rīchi mājan), is a variant of mahjong. Japanese mahjong shares the same basic rules as other mahjong variants, but also features a unique set of rules such as riichi (a wager that one's hand will win without being altered further) and the use of dora (randomly selected tiles that will score bonus points). The variant is one of a few styles where discarded tiles are ordered rather than placed in a disorganized pile. This is primarily due to the furiten rule, which takes player discards into account. The variant has grown in popularity due to anime, manga, and online platforms.