The Charleston in American Mahjong: Rules, Order & Strategy

The pass order

The first Charleston is mandatory. Pass three tiles to your right, then three across, then three to your left. The sanctioned tournament rules allow one exception. If East is dealt a complete hand, fourteen tiles that already match a line on the card, East may stop the passing before it starts.

The second Charleston is optional. It happens only if all four players agree, and then you pass three left, three across, then three right. One refusal cancels it for everyone.

The courtesy pass is optional too. You and the player opposite may exchange 0 to 3 tiles. Each of you names a number, and you exchange the smaller of the two.

The blind pass

On the last pass of each Charleston (the first one's left pass, the second one's right pass), you may pass 'blind': take one, two, or three of the tiles being passed to you, without looking, and send them along as part of your own three.

It exists for the player whose rack has nothing safe to give up. The cost is that you've forwarded mystery tiles that might have been exactly what you needed.

Sometimes all four players wait to see what arrives before deciding how many tiles to send blind, and the pass stalls. The sanctioned tournament rules settle it. East, who holds the extra fourteenth tile, completes the pass first, and the others follow.

The unbreakable rules

Exactly three tiles on every Charleston pass, no more, no fewer. Never pass a joker, in any Charleston or courtesy, ever. And you cannot take back a pass you have made. The tournament rules make one exception. A player stopping the second Charleston may call back its first pass if nobody has racked those tiles yet.

Flowers, winds, dragons, and any suit tile pass freely. The joker rule is the one that gets new players the table's raised eyebrow.

Why it exists

Thirteen tiles dealt at random are not a hand yet. The Charleston is how the game fixes that. Before anyone draws, the table runs up to three structured rounds of passing, so a deal that arrived as noise has a chance to become a hand. Everyone does it at once, which means you are handed other people's rejects while they are handed yours, and a tile that is useless to the player on your right can be the one that decides your direction.

It is also where the hand gets settled. By the time the passing ends you have committed to a direction whether you meant to or not, because the tiles you sent are gone and the ones you kept are what you have. That is why the passing decision deserves more thought than the play that follows it.

The whole sequence at a glance

The first Charleston is compulsory, passing three tiles right, three across, then three left.

The second Charleston happens only if all four players agree, passing three left, three across, then three right. Any single player can decline it, and that ends it for the table.

The courtesy pass is optional and goes across only. You and the player opposite each name a number from zero to three, and the lower number is what you exchange.

That is the whole ritual. Each player passes nine tiles in the first round, nine more in the second if it happens, and up to three in the courtesy. Nothing else passes at any point in the hand.

When you cannot find three to pass

This is the moment beginners dread, and it has a legitimate answer rather than a fudge. On the final pass of each Charleston, the left that ends the first round and the right that ends the second, you may pass along tiles you were just handed without looking at them. One, two, or all three.

Everywhere else you must send three tiles you have looked at, out of your own rack. There is no pass of fewer than three and no skipping a pass, so a rack you love still owes three tiles on every pass of the first Charleston.

If it hurts, that is information. A hand that cannot spare three tiles on the first pass is usually a hand keeping too many directions alive at once, and the fix is to decide which two you are actually playing.

Where the Charleston changes

With fewer than four players there is no Charleston at all. The League's rules skip it at a three-player or two-player table, and so do the sanctioned tournament rules. A passing round at three is a table rule, so a group that wants one has to agree its details before the deal.

Tournament play also tightens the blind pass. Stealing a tile is allowed, but a stolen tile may not be looked at, and a player who looks at one loses ten points at the end of that game. The rules that hold everywhere are the three-tile count and the ban on passing a joker.

Charleston strategy in brief

Read your deal first. Find your pairs, which need two natural tiles because a joker can never be part of a pair, and find your two strongest directions. Pass tiles that serve neither direction, starting with isolated honors and stray numbers. Watch what arrives, too. A stream of even tiles suggests the players passing to you are not collecting evens, which can leave that category open for you. Re-read your hand from scratch after every pass, because the tiles you receive can change which direction is strongest.

Reading about passing is one thing. Doing it under table pressure is another. Our Charleston simulator deals you a real hand, and the coach grades every pass.