American mahjong

American mahjong, also spelled mah jongg, is a variant of the Chinese game mahjong. American mahjong utilizes racks to hold each player's tiles, jokers, and "Hands and Rules" score cards. It has several distinct gameplay mechanics such as "The Charleston",^[1] which is a set of required passes, and optional passing of the tiles.

American mahjong is played with four players using mah jongg tiles. The goal of the game is to be the first, by picking and discarding, to match one's tiles to a specific hand from the annually distributed scorecard published by the National Mah Jongg League (NMJL) and American Mah-Jongg Association (AMJA).^[2] Scoring is done by matching the points assigned to each pre-determined hand on the annually distributed NMJL card & AMJA card.