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MCR · Competition rules

Eight fan, from a fixed list.

Competition mahjong, also called MCR or 国标, uses one published pattern list. A win needs eight fan. That list does not change every year.

Study Mahjong / MCR

A published list, not a yearly card

Competition mahjong, also called MCR or Chinese official mahjong, scores from one published list of 81 patterns. A win needs at least eight fan. The list does not change every year.

  1. The set is 144 tiles: suits, winds, dragons, and eight flowers.
    The families in a competition set.
  2. You may chow, pung, and kong. A flower is set aside for points and replaced from the wall. A flower is not a joker.
    A chow is legal.
    The flower scores, then you draw a replacement.
  3. You start with 13 tiles and win with 14, the same length as Hong Kong and riichi. The difference is the scoring book.
    A pair still finishes the hand. The fan comes from the official patterns.
  4. American wins are lines on a card that changes yearly, and jokers exist. MCR has no jokers.

The American first night starts at the tiles.