The Charleston is the most strategic moment before play even begins. Three passes right, three across, three left — up to nine new tiles before a single discard. How you use those exchanges often determines whether you finish with a strong hand or spend the whole game chasing tiles you never get.
Most beginners treat the Charleston as a way to dump tiles they don’t recognise. Strong players use it to actively build toward a hand.
This guide tells you exactly what to pass, what to keep, and how to think about every decision in the Charleston.
The Golden Rule of the Charleston
Pass tiles that don’t fit any hand you are considering. Keep everything that does.
It sounds obvious — but the mistake most beginners make is passing tiles based on instinct rather than by actually reading the card. Before you pass a single tile, scan the NMJL card and identify two or three hands you could realistically build from your opening 13 tiles. Then pass everything that contributes to none of them.
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What to Pass First — Priority Order
1. Isolated honour tiles (Winds and Dragons you don’t need)
A single Wind or Dragon that doesn’t appear in any of your candidate hands is the easiest pass. Honour tiles are specific — a North Wind only helps you if you’re building a hand that calls for North. If you’re not, it’s dead weight.
Exception: If multiple hands on the card call for any Wind or any Dragon, a single honour tile may still be useful as a flexible piece. Check the card before passing.
2. Tiles from a suit you are abandoning
If your best hands are in Craks and Dots, pass your Bams. Don’t hold suited tiles “just in case” — the Charleston is your best window to get rid of them, and holding a suit you’re not using blocks you from getting tiles you need.
Practical tip: Commit to abandoning a suit as early as the first pass if your opening hand gives you a clear direction. The sooner you commit, the more focused your passes become.
3. High-risk single tiles
A tile that only fits one specific hand on the card — and that hand isn’t one of your top two candidates — is worth passing. The more hands a tile contributes to, the more reason to keep it. The fewer, the faster you should let it go.
4. Duplicate tiles beyond what you need
If you have four 3-Craks and your best hands only need two or three, consider passing the extras — especially if another suit is thin. Having four of one tile when you only need two is inefficient use of your 13 tiles.
What to Never Pass
Jokers — always keep them
Jokers can never be passed during the Charleston under NMJL rules. If you accidentally pass one, the receiving player must give it back immediately. Beyond the rule, Jokers are too valuable to give away under any circumstances — they fit nearly every hand on the card and become more powerful as the game progresses.
Flowers — keep until you are certain
Flowers appear in a large number of hands across the NMJL card. Unless you have locked in on a hand that requires no Flowers at all — which is rare — hold them through the Charleston. Passing a Flower and then picking a hand that needs two of them is one of the most painful early mistakes in American Mahjong.
Pairs and sets you are building toward
Two or three of the same tile are the foundation of most NMJL hands. Even if you are not certain which hand you will play, a pair in a strong suit is worth protecting through the Charleston. It is far easier to build around tiles you already have than to hope for pairs to come during play.
Your best candidate hand’s tiles
This sounds obvious but beginners regularly pass tiles that belong to their own best hand because they don’t recognise the connection yet. Slow down, read the card, and make sure you are not passing a tile that appears in your top candidate hand before letting it go.
How to Think About Each Pass
First pass (right) — be decisive
You have seen all 13 of your tiles. By this point you should have identified at least two candidate hands. Pass your three most clearly useless tiles — the isolated honours, the abandoned suit, the tiles with no connection to anything you want to build.
Don’t overthink the first pass. You have two more passes coming.
Second pass (across) — refine your direction
By the second pass you have received three new tiles from the right. Reassess — do those new tiles change anything? If you received something useful, your direction may have sharpened. Pass your next three least useful tiles.
The across pass is also where many players start to get a read on what other players might be building. If you keep receiving Bams from the right, the player on your right may be abandoning that suit — which means fewer Bam tiles will be discarded during play, making Bam hands harder to complete.
Third pass (left) — the blind pass option
The third pass of the first Charleston is the only one where a blind pass is allowed. A blind pass means you pass tiles to the next player without looking at what has just been passed to you.
When to use a blind pass: If you are happy with your hand and don’t want to risk breaking it up with new tiles you didn’t ask for. Pass your three tiles left, then don’t look at what arrives from the right until after you have decided your pass tiles — though note that in practice you must complete the pass before looking.
When not to use a blind pass: If your hand is still weak and you need new tiles. Take what comes and use it.
Should You Do the Second Charleston?
If, after the first three passes, you have fewer than 5 tiles you want to get rid of, stop the second Charleston. Once you start the second round you are committed to all three passes — you do not want to be forced to pass tiles you need.
If you still have 5 or more tiles that don’t fit your hand, continue. The second Charleston gives you three more opportunities to refine your hand before play begins.
Any player can stop the second Charleston — you don’t need to explain why. Simply say so before the second round begins.
The Courtesy Pass
After the Charleston ends, you and the player across from you may exchange 0–3 tiles in one final optional pass. Both players must agree.
Use it when: You have 1–2 tiles that clearly don’t fit your hand and you think the player across might want them — or you want to try to get something specific.
Skip it when: Your hand is strong and you don’t want to risk giving useful tiles to your opponent. If your opponent passed blind or declined the second Charleston, they likely have a strong hand — you may want to decline their courtesy pass offer to avoid helping them.
Common Charleston Mistakes
Passing tiles before reading the card. The single biggest beginner mistake. Always identify your candidate hands before passing anything.
Passing Jokers. Never. Not once. Not even by accident — if you do, ask for them back immediately.
Holding Flowers out of habit. Flowers are valuable but not sacred. If you have locked in on a hand that genuinely doesn’t need them, passing a Flower late in the Charleston is fine. The mistake is passing them early before you know what hand you’re playing.
Passing tiles that belong to your backup hand. Always maintain a pivot hand — a second option you can switch to if your primary hand isn’t coming together. Don’t pass tiles that belong to your pivot.
Continuing the second Charleston when you shouldn’t. If your hand is in good shape after the first Charleston, stopping is often smarter than continuing. Passing tiles you need because you committed to a second round is a costly error.
Ignoring what you receive. The Charleston is a two-way exchange. Pay attention to what you’re getting — it tells you something about what other players are passing, which hints at what suits and tiles they are collecting.
Charleston Strategy at a Glance
| Tile type | Pass? |
|---|---|
| Jokers | Never |
| Flowers | Hold until hand is locked |
| Isolated Winds/Dragons | Pass first |
| Suits you are abandoning | Pass early |
| Tiles fitting only one weak candidate hand | Pass |
| Pairs and sets in your candidate hands | Keep |
| Tiles in your top candidate hand | Always keep |