When to call a discard — and what it costs
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Mahj School › Your First Game · Lesson 8 of 10 · 26 seconds
An exposure sits on top of the rack →
Exposed groups live on the ledge of the rack where the whole table can see them. That ledge is doing real work.
Shop racks — $139.99Calling a discard feels like winning a small race. It is also the moment you hand the other three players a piece of information you cannot take back.
Full transcript
You can take the tile somebody just threw — but only to finish a group of three or more, and only before the next player draws. Say what you want, take it, and lay the whole group face up on top of your rack.
Everyone can see it from then on. That is the trade: the tile you needed, for information you cannot take back.
Three or more, and not a moment later
Two conditions, both hard. The tile has to complete a group of three or more identical tiles — you cannot call a discard to make a pair or to fill a single. And you have to call before the next player takes their tile. Once that draw happens, the discard is dead.
When you call, the whole group goes face up on the ledge of your rack, not just the tile you took. From that point the table knows three of your tiles, and a careful player will stop throwing anything near them.
So the question is never just “can I call this”. It is whether the tile moves you close enough to be worth showing your hand for. Early in a game, when you might still switch to a different line on the card, an exposure locks you in as much as it helps you.
- Three or more. Never to make a pair or a single.
- Before the next draw. After that the tile is dead.
- Say what you want out loud as you take it.
- Expose the whole group face up on your rack.
- It stays exposed for the rest of the hand.
Mahj School is a free video series from ALOXO. The tiles and tables in this video are illustrations drawn for teaching, not photographs of a particular set.