In the U.S., the American version has been played with 152 rectangular tiles since 1937, when the National Mah-Jongg League was formed and codified the rules for the game. Introduced to Americans ...

In addition, a professional mah-jongg league, called the M.League, was established in 2018. “In mah-jongg , you need to adjust your strategy depending on the situation, like watching the tiles ...