Mahjongg wins
Mah Jongg takes the tile
- Standard rule
- The player who needs the tile for Mah Jongg takes it. This holds even if the other player has already put the discard on their rack or started an exposure; those tiles go back into that player’s hand. If the Mah Jongg then turns out to be wrong, that hand is dead and the discard stays with it — unless the other player also needed it for Mah Jongg, in which case they may take it.
- Why
- A claim to finish the hand outranks a claim to build one; this is the one priority that does not depend on seat order or speed.
- Common house rules
- Few tables change this. Some groups add that the Mah Jongg must be spoken clearly before any tiles move; if that was agreed, follow it.
If your table agreed on a house rule before the game, that rule wins.
Under review by instructors
Sources consulted: Mahj Life Rules Wiki, Article 95 (Simultaneous Call for an Exposure and a Mah Jongg); Mahj Life Rules Wiki, Article 264 (Hold, Wait, Call, Mah Jongg: Who Gets the Tile?); Tom Sloper, Mah-Jongg FAQ 19 (American rules): “Who gets a discard if one wants it for mah-jongg?” and “What if the player who took the tile for mah-jongg turns out to have been in error?”; AMJA, The Complete American Mah Jongg Rulebook, FAQ: preference when two players claim the same discard