American vs Chinese vs Riichi

Three games, one ancestor

All three descend from the Chinese game that reached the West in the 1920s, but a century of local rules has made them mutually incompatible at the tile level. Buying for the wrong game is the most expensive mistake in mahjong — so learn the split before you shop.

Tile count is the tell

American (NMJL) play uses 152 tiles in play — including 8 jokers — and modern sets ship 160 with extra jokers and blanks. Chinese sets run 144–148 tiles with flowers and seasons but no jokers. Riichi uses exactly 136: no flowers, no seasons, and three red fives that act as bonus (dora) bait. Count the tiles in a listing and you already know which game it is for.

Racks belong to America

Only American mahjong is played from racks with pushers — a legacy of its 1930s club era. Chinese and Riichi players build walls and hold hands of standing tiles, which is why their sets ship without racks and why their tiles tend to be thicker. If a 'Chinese set' advertises racks, it is marketing to Americans, not describing the game.

The card belongs to America too

American hands are not fixed: the National Mah Jongg League publishes a new card of winning hands every year, and every player at the table needs the current card. Neither Chinese nor Riichi play uses a card. Budget the card — and its annual replacement — into any American purchase.

Which should you learn?

Learn the game your people play. In much of the US that now means American; Chinese remains the family and community standard in many households; Riichi is the competitive, televised game with the steepest scoring and the most devoted online scene. Our rankings keep a best set ready for each.