台湾话麻将则度

3.3 Claiming

Whenever a player discards a tile, the other three players may claim the tile either to go out, or to complete a Pung, Kong or Chow (the latter, when not being the set that completes the hand, being allowed only to the player sitting to the right of the discarder).

If two or more players claim the same tile, the order of precedence is (from the most valuable to the least valuable): Winning Claim, Kong, Pung and Chow. If two or more players claim the same tile for going out, they are all considered as winners.