Mah Jongg via a Joker Exchange

When a player’s final move to complete their Mah Jongg hand is performing a Joker ExchangeAn action that a player may perform when it is their turn to play that allows a player to trade… More (either from their own exposureWhen a player places a grouping of three or more identical tiles on the top part of their rack after… More or another player’s exposureWhen a player places a grouping of three or more identical tiles on the top part of their rack after… More), they must immediately declare Mah Jongg loud enough for all players to hear.

Recommended announcements: “Mah Jongg, Joker Exchange”, or “Mahj, Joker Exchange”.

Emphasizing that the player received the final tile for Mah Jongg from a Joker ExchangeAn action that a player may perform when it is their turn to play that allows a player to trade… More is important for scoring purposes (see Hand Value and Payment).

After declaring Mah Jongg, the player exposes all 14 tiles clearly on top of their rack.

Steps After Declaring Mah Jongg

• It is recommended, though not required, that players arrange exposures in the same order as shown on the current NMJL CardThe product published annually by the National Mah Jongg League which dictates the collection of groupings that will form the… More to make verification easier for the other players.
• It is recommended, though not required, that the winner identifies their hand on the NMJL CardThe product published annually by the National Mah Jongg League which dictates the collection of groupings that will form the… More to make the verification process easier for other players.
• Other players should verify the winning hand’s validity before proceeding.

Important: Other players must not expose or discard their tiles until the winning Mah Jongg hand is officially confirmed as valid by all players.

Announcing Winning Hand Value

• Once the Mah Jongg is confirmed, the winner announces the hand’s total value and the amount owed by each player.
• Other players should not assist in calculating the winning hand’s value.

Incorrect Winning Hand Value Announcements

• If the winner announces a total hand value lower than than deserved, and another player corrects the error, the winner receives only the originally announced lower total hand value.
• If the winner announces a total hand value higher than deserved, any player may correct this error. Once corrected and all players must agree to the corrected value, the winner then restates the corrected total hand value.