EMA Riichi Competition Rules
The Riichi Competition Rules (RCR) of the European Mahjong Association (EMA) are used for many Japanese Mahjong tournaments throughout Europe.
Introduction
The main differences of the RCR to other common Japanese Mahjong rulesets are:
- Kuitan nashi: The yaku Tanyao (all simples) may be awarded to closed hands only.
- Kuikae ari: Any discard is legal after calling Chii or Pon, even a tile which would also have completed the open meld.
- Ryanhan shibari: With five or more table counters present, winning hands must have at least two Han from Yaku.