The following rules written by the National Mah Jongg League are not found in their official guidebook, Mah Jongg Made Easy (MJME). About house rules (Article ID 50) Always read what’s in parenthesis (Article ID 65) Bettor forgot to bet
If a player completes an exposure and then brings other tiles to the flat part of his rack thinking he might have mah jongg but declares, “I can’t do that,” he can return those additional tiles back to his rack as long as he has not verbalized mah jongg.
If a player discards a tile prior to picking, the tile may not be called for exposure by another player.
It is preferred that you place a called tile on the flat part of your rack and not in your rack among your tiles. This will prevent picking up the wrong tile for expous
One might think that a player’s turn begins when the previous player discards a tile but that is not the case. The reason for this is that turns can be interrupted when another player claims the discard to make an exposure. Therefore, a player’s turn officially begins when they either pick a tile from the wall or call a discard.
To protect the integrity of the game, a tile that is picked from the wall but, interrupted by a call must be put back in its original place.
A “pie” is a limit set by players. Players start with $5 in coins to pay the winner.
When a Bettor forgets to make his bet either in writing or on a betting device, he is penalized by having to pay the winner as do the other players.
A commitment to a called tile occurs when a player either exposes tiles on the flat part of their rack, placed the called tile on the flat part of their rack or placed the called tile on the sloping part of their rack along with their other tiles.
It is every player’s responsibility to verify they’ve made a correct exposure.