How to Play American Mahjong

A clear, beginner-friendly guide to American mahjong, covering the NMJL card, the Charleston, joker rules and how a turn actually works.

How American Mahjong Works in Short

American mahjong is a four-player tile game where you race to collect 14 tiles that exactly match one hand printed on the National Mah Jongg League card. You draw and discard tiles in turn, pass tiles during an opening ritual called the Charleston, and use jokers to fill out groups of three or more. The first player to complete a listed hand calls "mahjong" and the round ends.

What the NMJL Is

The National Mah Jongg League, usually shortened to NMJL, is the organization that publishes the standard hand card used in American mahjong. A new card comes out each year, and every hand you are allowed to make that year appears on it. Without the card, there's no legal hand to build toward. Most players buy the new one annually and retire the old.

Why the Card Changes Every Year

Retiring hands keeps the game from going stale. A pattern that felt automatic last spring may simply not exist on the new card, so experienced players spend the first few weeks relearning what's possible. Beginners actually have an advantage here, since everyone is reading fresh.

Setting Up the Game

A standard American set has 152 tiles: three suits (bams, cracks, dots), winds, dragons, flowers and eight jokers. Four players build walls, break one, and deal. The dealer receives 14 tiles and everyone else 13, which is why the dealer discards first. Racks hold your tiles upright so only you can see them.

Building the Wall

Each player stacks 19 pairs of tiles two high in front of their rack, forming a square. The dealer rolls, counts to a breaking point, and tiles are dealt in blocks of four until the last round, when singles go out. Many casual groups skip the formal roll and just deal.

The Charleston, Explained

The Charleston is the passing phase before real play begins. In the first Charleston you pass three tiles right, three across, then three left. A second Charleston, passing left, across, then right, happens only if all four players agree. The goal is to shed tiles that don't fit your target hand and pick up tiles that do.

Blind Passes and the Courtesy Pass

On the third pass of each Charleston you may pass "blind," sending one or two tiles you received without looking at them. After the second Charleston, the two players sitting opposite each other may swap up to three tiles in a courtesy pass, and it must be an equal number both ways.

One Rule People Forget

Jokers can never be passed during the Charleston. If you hold three jokers and only six other tiles you want gone, you have a problem. Blank tiles and flowers are fair game, and flowers move constantly in early passes because so few hands use them heavily.

American Mahjong Rules for a Turn

Play moves counterclockwise. On your turn you either draw the next tile from the wall or take the tile just discarded, then you discard one tile face up and name it out loud. Your rack always holds 13 tiles between turns. The round ends when someone declares mahjong or the wall runs out, which is a wall game and nobody wins.

Calling a Discard

You may claim the tile just discarded only if it completes a pung, kong, quint or your winning hand, and you must expose that group on top of your rack. Calling for a pair is not allowed. Once you expose tiles, the table can read part of your hand, so there's a real trade-off between speed and secrecy.

Concealed and Exposed Hands

The card marks certain hands with a C for concealed, meaning you cannot call any discards until the tile that wins the game. Concealed hands pay more, and they're harder. Choosing one early and abandoning it late is a common way to lose a round you were otherwise close to taking.

Mahjong Joker Rules

Eight jokers come with an American set, and they substitute for any tile inside a group of three or more identical tiles: pungs, kongs and quints. Jokers cannot be used in a pair, a single tile or as part of a NEWS or 2025-style number sequence. They also cannot be used to complete a pair, which is why so many hands stall one tile from mahjong.

Swapping for an Exposed Joker

If a joker sits in an exposed group on any rack, including your own, you may swap the real tile for it on your turn. Hold the actual 6 bam, place it in that exposed pung, and take the joker into your hand. You may do this before drawing or discarding, and multiple swaps in one turn are allowed.

Jokers and Winning

A hand won with a joker in it still counts, but a discarded joker cannot be claimed by anyone. Throwing a joker is legal and sometimes strategic near the end of a wall game, though it tells the table you've given up on your hand.

American vs Chinese Mahjong

The two games share tiles and little else. If you learned mahjong overseas or from a phone app, expect to unlearn a few habits.

| Feature | American (NMJL) | Chinese |

| --- | --- | --- |

| Legal hands | Only those on the annual card | Standard four sets plus a pair |

| Jokers | Eight, used in groups of three or more | Usually none |

| Charleston | Yes, before play | No |

| Tile count | 152 | 144 |

| Card needed | Yes, replaced yearly | No |

Common Beginner Mistakes

New players tend to chase too many hands at once and end up with 13 useless tiles at the halfway mark. Pick two candidate hands during the Charleston and commit to one by the time the wall is half gone. Other frequent errors: passing a tile you needed, forgetting you can swap for an exposed joker, and calling a discard that reveals your hand too early.

Learning to Play Around Orlando

Reading rules and playing an actual round are different experiences, and most people find the card easier to understand with someone sitting beside them pointing at it. Mahj & Away runs beginner lessons and open play sessions for players across Orlando, Windermere, Winter Garden and Winter Park.

Where Games Happen

Sessions are hosted at local spots including Tim's Wine Market and Matthew's Steakhouse, which suits people who want the game and the evening out in one trip. Beginner lessons cover the card, the Charleston and joker rules from scratch. Open play is for anyone who knows the basics and wants table time.

Frequently Asked Questions

How long does one game of American mahjong take?

A single hand usually runs 15 to 25 minutes depending on how quickly players discard and how many calls get made. Most groups play several hands in a sitting, and a typical session lasts a couple of hours. Beginners play slower, which is normal and worth planning for.

Do I need my own mahjong card to play?

Yes, each player needs their own current NMJL card, since you're reading it constantly and you can't share a card mid-hand. Cards are inexpensive and released annually. At a beginner lesson you'll usually be shown how to read the card before you need to own one.

Can I play American mahjong with three players?

You can, and many groups do. With three players you skip the across pass in the Charleston and simply pass right then left, and the wall lasts longer per player. Four is the standard and the game flows better that way, but three works fine for practice.

What happens if nobody wins the hand?

When the wall runs out and no one has declared mahjong, it's a wall game. Nobody scores, the tiles get shuffled, and the deal passes. Wall games happen more often than beginners expect, particularly when several players are chasing the same tiles.

Is American mahjong hard to learn?

The turn structure takes about one session to pick up. Reading the card fluently takes longer, usually several sessions, because you're learning to spot which hands your tiles could still become. Most people can play a full game the first day and start playing well after a handful of them.

See upcoming game nights across Orlando, Windermere, and Winter Garden.