How a Turn Works

The engine of mahjong is simple: draw one tile, discard one tile. Your hand is always 13 tiles between turns. Everything spicy in this game happens in the space around that loop — when somebody else’s trash turns out to be your treasure.

The basic loop

Play moves counterclockwise. On your turn:

1. Draw the next tile from the wall.
2. Optional: declare a kong or a win if you’ve got one — details below.
3. Discard one tile, face-up in the middle. That’s it. Nobody needs to announce what it is — the table watches the pile, not your mouth.

If you drew a flower: lay it out, take a replacement from the wall’s tail, carry on. Flowers never count as your draw.

Taking tiles from the pot

When someone else discards a tile you want, you can claim it. This is the part of mahjong that makes it a contact sport. Pong and kong you call out loud; seung you just take.

However you claim, the meld goes down face-up. Reveal the two or three tiles from your own hand first, then add the discard and lay the whole set in front of you. Never scoop the discard into your hand and sort it out in private — nobody can check what you had, and at this table that reads badly even when you’re honest.

上 Seung — take it for a run

If the player directly to your left discards a tile that completes a run in your hand, reveal your two tiles, add theirs, and lay the completed run face-up in front of you. No call required — left neighbour only, so there’s never anyone to arbitrate against. Runs are local commerce.

碰 Pong — take it for a triplet

If anyone at the table discards a tile and you’re holding a pair of it, call pong, reveal your pair, add the discard, and lay the triplet face-up. Say it out loud — you’re claiming off the whole table, so the whole table needs to hear it. Pong beats seung: if one player wants it for a run and another wants it for a triplet, the triplet wins, and the run-caller gets to practice emotional regulation.

Play then resumes from you. After you pong, you discard, and the turn order picks up counterclockwise from your seat. If you claimed out of turn, everyone between the discarder and you simply loses that turn — they’re skipped, and there is no making it up to them. When it’s your turn that gets skipped: straight face, long memory.

A related family institution: Tai-Pong (太碰tai-pong) — said when you need a moment to work out whether you want that tile. It’s a request for grace, not a claim: hold on, let me think. Say it and the table waits a beat for you.

槓 Kong — take it for a four-of-a-kind

Four of a kind, and you call kong out loud to claim it, exactly like a pong. Three flavours, all of which end with you drawing a replacement tile from the marked end of the wall. A kong is four tiles standing in a three-tile parking spot, so you get a tile back — and with it, a fresh chance to win on the replacement:

• Open kong: you hold a concealed triplet, someone discards the fourth. Call kong and expose all four.
• Added kong: you already have an exposed pong and draw the fourth yourself. Tack it on.
• Concealed kong: all four came to you from your own draws. The only way to turn it into a kong is to draw the fourth one yourself — then you reveal all four and take your replacement tile, which is a live chance at 自摸zi mo. Holding four in hand and saying nothing is not a kong; it’s just four tiles doing the work of three.

食糊 sik wu — the trump card

If any discard completes your whole hand, you call the win. Winning beats everything — pong, seung, other people’s feelings, all of it. Chapter 5 is entirely about this moment.

Priority, in one breath

Win > pong/kong > seung. Ties on a win go to whoever is closest in turn order from the discarder. That’s 截糊zit wu — yes, someone can be robbed of a win by seating geometry. No, they never fully recover.

After any claim, play continues counterclockwise from the claimer.

Exposed vs. concealed

Every claim you make puts a completed set face-up in front of you. That’s real information you’re handing the table — they now know three of your fourteen tiles’ worth of story, and good players read exposed melds like a group chat with the read receipts on. A hand with zero claims (門前清mun cin cing) told nobody anything — and it’s the backbone of the six-point “silent fortress”: four concealed pongs finished with a Zi-Mo.

The strategic tension of the entire game lives here: claiming is fast and loud; staying concealed is slow and scary. You’ll develop a personality about it. Everyone does. It will be discussed.

Tempo rules (unwritten, therefore mandatory)

• Draw with intention, discard with rhythm. The game has a pulse — clack, clack, clack. Nobody expects you to speed-run your first night, but chronic deliberating over every discard is how you earn a nickname you won’t like.
• Claims must be immediate. The window for pong or kong closes when the next player’s discard hits the felt. “Wait, actually—” is not a call. The tile is dead to you. Light incense.
• Touch the wall only on your turn.

Next: the good part. How to actually win, what “waiting” means, and the correct decibel level for 自摸zi mo.