American Mahjong

What is American Mahjong?

American Mahjong is a variant of mahjong developed and popularized in the United States, formalized largely through the National Mah Jongg League (NMJL) since the 1930s. It sits at the intersection of strategy, pattern recognition, and social ritual — played at kitchen tables, in retirement communities, in Jewish community centers, and at dedicated mahjong clubs from coast to coast.

Known for: annual official hand card, jokers as core gameplay, the Charleston, pattern-matching strategy, and a strong US club tradition. If you have seen a group of four women sitting around a folding table with racks and pushers, calling tiles and laughing — that is almost certainly American Mahjong.

What you need to play

To play American Mahjong you need a full American set and the current NMJL card. Here is what that means in practice:

• Suit tiles — Dots (Circles), Bamboo (Bams), and Characters (Craks), numbered 1–9, four of each. 108 suit tiles total.
• Winds — East, South, West, North, four of each. 16 tiles.
• Dragons — Red, Green, White (Soap), four of each. 12 tiles.
• Flowers — Typically 8 flower tiles.
• Jokers — 8 joker tiles. Unique to the American game.
• Racks and pushers — Players hold tiles upright on racks. Most American sets include four racks and a pusher tool.
• Dice — Used to determine wall build order and deal.
• Current NMJL card — The annual hand card. Without it, you do not know which hands are legal that year.

The NMJL card explained

The NMJL card is the defining feature of American Mahjong. Published each spring by the National Mah Jongg League, it lists every legal winning hand for that year. Hands are organized into categories — often with names like Consecutive Run, Like Numbers, Quints, Winds and Dragons, Singles and Pairs, and others.

Each hand on the card shows the exact tile composition required, the point value, and whether the hand can be played open (with exposed sets called from discards) or must be played closed (entirely from draws). Some hands are only achievable with jokers; others prohibit joker use entirely.

Because the card changes every year, experienced players buy the new card each spring and spend time studying the new hands before the season's play begins. This annual refresh is part of what keeps the game feeling alive year after year — there is always something new to learn.

The tiles

American sets use the same core tile families as other mahjong styles, with the addition of jokers:

• Dots (Circles) — Round symbols numbered 1–9, four copies each.
• Bamboo (Bams) — Bamboo stalk imagery numbered 1–9. The 1-Bam often depicts a bird.
• Characters (Craks) — Chinese character for the number plus a red character meaning "ten thousand." Numbered 1–9.
• Winds — East, South, West, North. Used in many hand patterns on the card.
• Dragons — Red Dragon (Chun), Green Dragon (Fah), White Dragon (Soap/Bak). All three appear frequently on the NMJL card.
• Flowers — Eight flower tiles. They are collected but not played into hands — instead, when drawn, a flower is displayed, and the player draws a replacement tile.
• Jokers — Eight wild tiles. They can substitute for any suit tile, wind, or dragon in an exposed set of three or more identical tiles (a pung or kong). Jokers cannot be used in pairs.

Jokers in American Mahjong

Jokers are the heart of what makes American Mahjong feel different from other styles. In Hong Kong or Taiwanese Mahjong, you build your hand from the tiles you draw and claim — there is no substitution. In American Mahjong, jokers let you hold a position and pivot.

Key joker rules to know:

• Jokers can substitute for any tile in an exposed pung (three of a kind) or kong (four of a kind). They cannot be used in pairs.
• If a joker sits in an opponent's exposed set, and you have the real tile it is substituting, you may exchange your tile for the joker on your turn. This is called joker redemption — and it is a major strategic element.
• Jokers make hands more achievable, but also make defense harder: you cannot always be sure what an opponent's exposed set truly contains.
• Some hands on the NMJL card specify "no jokers" — these hands are typically worth more points because they are harder to achieve.

Hands pivot around jokers. Exposures carry layered reads. Defense changes because discarding a tile that fills an opponent's joker-heavy set can be catastrophic. Learning to hold jokers, trade them, and bait opponents is what separates experienced American players from beginners.

Setup

Before the Charleston begins, the game is set up as follows:

1. Assign seats. Typically done by randomization — drawing a wind tile, rolling dice, or by agreement.
2. Shuffle the tiles. All tiles are mixed face-down on the table. Players typically each take a corner and shuffle together.
3. Build the walls. Each player stacks tiles in a two-layer row in front of them, forming four walls that meet to create a square.
4. Determine the dealer. The East player is the first dealer. Dice may be rolled to determine wall break position.
5. Deal the tiles. The dealer draws 14 tiles; the other three players draw 13 tiles each. Players rack their tiles and the Charleston begins.

The Charleston

The Charleston is one of American Mahjong's most distinctive features — a structured tile exchange that happens before gameplay begins. It gives every player the opportunity to shed tiles that do not fit their hand and pick up tiles that might.

The First Charleston:

1. First Left. Each player passes three tiles face-down to the player on their left simultaneously.
2. First Across. Each player passes three tiles face-down to the player directly across.
3. First Right. Each player passes three tiles face-down to the player on their right.

After the First Charleston, players may agree to a Second Charleston (left, across, right again). In the last pass of the Second Charleston, players may "steal" from the courtesy — meaning they can keep some of what was passed to them and substitute tiles of their own choosing. At the very end, players may optionally do a Courtesy pass, trading 1–3 tiles with any one opponent if both agree.

The Charleston is where strategy begins. Knowing what to pass — tiles that do not fit your card direction — and what to hold requires reading the card quickly and committing to a path early.

How gameplay works

After the Charleston, the dealer discards one tile to start play. From there, the game proceeds clockwise:

1. Draw. The active player draws a tile from the wall (or takes a discarded tile if they can complete an exposed set or win).
2. Claiming discards. Any player — not just the next in sequence — may call a discard to complete an exposed pung or kong, or to win (mahj). The claim must happen before the next discard is played.
3. Exposures. When a player claims a discard, they expose the completed set face-up on their rack. This reveals information about their hand to all players.
4. Discard. After drawing or claiming, the active player discards one tile face-up. Other players may call it before the turn passes.
5. Joker redemption. On their turn before drawing, a player may swap a real tile for a joker sitting in any opponent's exposed set.

The core strategy is different from other styles. You are not just building toward any valid hand — you are pattern-matching against the current NMJL card, committing to a specific hand, and deciding how to position every tile around that commitment. More pattern recognition, more card-reading, more commitment decisions.

Winning in American Mahjong

A player wins by completing a legal hand from the current NMJL card. When a player is ready to declare a win, they call "Mahj!" and expose all tiles. The hand must exactly match one of the hands on the card — tile for tile, set for set, including any joker restrictions.

Unlike some other styles, there is no partial credit. If your hand does not precisely match a card hand, it is dead — meaning you cannot win with it and may owe a penalty. Players who declare a dead hand (inadvertently revealing they cannot win) typically owe each opponent the value of the highest hand on the card.

Point values vary by hand. Hands that require no jokers are typically worth more. Payment is collected from all three opponents when you win — or just from the player who discarded the winning tile in some house rule variants.

How American Mahjong differs from Hong Kong Mahjong

American and Hong Kong Mahjong share roots but feel like different games at the table.

• Annual card vs. fixed rules. American Mahjong uses the NMJL card — a changing annual hand list. Hong Kong Mahjong uses fixed hand categories that do not change year to year.
• Jokers. American Mahjong uses eight jokers as core gameplay elements. Hong Kong Mahjong uses no jokers.
• The Charleston. American Mahjong includes the Charleston pregame exchange. Hong Kong Mahjong goes directly to wall drawing.
• Hand flexibility. Hong Kong Mahjong allows more open-ended hand construction — any combination of valid sets and a pair can win (subject to point minimums). American Mahjong requires an exact card match.
• Scoring. Hong Kong Mahjong uses a points-and-multipliers system where hand value varies based on composition. American Mahjong uses fixed point values assigned per hand on the card.

See the full comparison: Hong Kong Mahjong or the Mahjong Styles Comparison.

How American Mahjong differs from Taiwanese Mahjong

Taiwanese Mahjong shares the no-joker, no-annual-card approach of Hong Kong Mahjong but adds its own distinctive elements: 16-tile hands, a zimo (self-draw win) bonus structure, and no-discard-win rules that dramatically change defense. American Mahjong is more pattern-specific and card-driven; Taiwanese is more fluid and hand-building oriented with a heavier self-draw incentive.

See also: Taiwanese Mahjong.

Where to get the annual NMJL card

The annual card is published each spring by the National Mah Jongg League and is available for purchase directly from their website. It is not freely distributed — it must be bought. Cards are available in standard and large-print formats.

Many local game stores that carry American mahjong sets also stock the current card. Some mahjong clubs purchase cards in bulk for their members. If you are joining a local group, ask the organizer — they often have extras or can point you to a source.

Strategy basics

American Mahjong rewards deliberate, card-aware play. Five fundamentals:

1. Learn the card categories. Do not try to memorize every hand at once. Focus on one or two card categories you find intuitive. Consecutive runs, like numbers, and winds/dragons each have different feels — find yours.
2. Pick a direction early but stay flexible. During the Charleston you should have 2–3 potential hand directions. By the end of the Charleston, commit to one or two and pass away tiles that do not serve them.
3. Use Charleston wisely. The Charleston is not just about getting rid of bad tiles — it is about shaping your hand toward a specific card target. Think about what you are building, not just what you do not want.
4. Respect jokers. Hold jokers until you know where they belong. Do not expose a joker set too early unless you have strong defensive reads on your opponents. Remember that opponents can redeem jokers from your exposures.
5. Play socially and observantly. American Mahjong is inherently a social game. Read the table. Notice what opponents expose. Listen to what they call. Adjust your discards based on what hands you see them building.

Etiquette at the table

American Mahjong has a strong community culture and with that comes a set of widely shared table manners:

• Be clear during Charleston. Pass tiles simultaneously and face-down. Do not look at what you receive before everyone has passed.
• Announce calls cleanly. Say "Mahj" clearly and promptly. Do not hover or delay calls — be decisive.
• Keep the card readable. Your NMJL card should be visible to you, but do not hold hands you are building toward in a way that makes your card section obvious to others.
• Be patient with new players. American Mahjong has a long teaching tradition. Experienced players routinely bring in newcomers. If someone at your table is learning, slow down and explain — it is part of the culture.
• Clarify house rules before you start. Some groups play with minor variations — on courtesies, joker redemption timing, or what counts as a dead hand. Get alignment before the first Charleston.
• Respect local teaching culture. Different clubs have different norms for how much advice is shared during play. Follow the lead of the host or the most experienced player at the table.

Why people love American Mahjong

American Mahjong is many things at once. It is a strategy game demanding real pattern recognition and card-reading. It is a social ritual — the Charleston, the tile shuffle, the click of tiles on racks. It is a tactile experience with beautiful sets and the physical pleasure of heavy tiles. And it refreshes every year with a new card, so the game never fully stagnates.

The community around American Mahjong is particularly warm. Clubs form in homes, community centers, country clubs, and online groups. There is a strong tradition of teaching newcomers, of fundraising through charity play, and of passing the game down across generations. If you want a game that is as much about who you play with as how you play, American Mahjong delivers.

Frequently asked questions

Keep exploring

American Mahjong is one style in a broader world. Learn how it compares, find local play, or go deeper on another style:

• Compare all mahjong styles side by side — American, Hong Kong, Taiwanese, and more in one chart.
• Hong Kong Mahjong — the classic Cantonese style with fluid hand-building and points multipliers.
• Taiwanese Mahjong — 16-tile hands, zimo bonuses, and a different strategic flavor.
• How to Play Mahjong — start here if you are brand new to the game.
• Browse mahjong events — find American Mahjong groups, tournaments, and clubs near you.