MahJong - 麻將40號（綠色)

Mahjong, also known as Mahjong, is a chess and card game originating from China. The game is usually played by four people. The rules of mahjong (especially the calculation methods of numbers or scores) vary greatly from place to place, but the basic goal is to create certain combinations of cards through a series of substitution and trade-off rules, and to prevent opponents from achieving the same goal.