What tiles do I need to start American Mahjong?

An official American Mahjong set contains 152 tiles: 108 suited tiles (Bams, Craks, and Dots numbered 1 through 9, four copies of each), 16 Winds (4 each of North, East, West, South), 12 Dragons (4 each of Red, Green, and White/Soap), 8 Flowers, and 8 Jokers (wildcards). In addition, every player needs a current-year National Mah Jongg League (NMJL) card.

How many people can play American Mahjong?

Standard American Mahjong is designed for exactly 4 players seated at a square table (designated as East, South, West, and North). If you only have 3 players, you can play the official 3-player adaptation by omitting the Across pass in the Charleston and using a dummy wall.

Is there an official 3-player version of American Mahjong?

Yes! American Mahjong can be adapted seamlessly for 3 players. All 152 tiles and 4 walls are built as usual, but the North seat is left vacant. During the Charleston, players only pass to the Right and to the Left (the Across pass is skipped). The 4th wall serves as an extra draw wall, giving each player more turns.

What is the difference between Chinese and American Mahjong?

American Mahjong differs from Chinese Mahjong in four fundamental ways: (1) It uses 152 tiles including 8 Jokers (Chinese uses 136 or 144 tiles with no Jokers), (2) It requires an annually changing NMJL card to determine valid hands, (3) It starts with the mandatory Charleston tile-passing phase, and (4) It allows combinations of Quints (5) and Sextets (6) using Jokers.

Can you call a discard to complete a pair in American Mahjong?

No, with one major exception: you can NEVER call a discard to complete a pair during regular play to expose it on your rack. The ONLY time you may claim a discard for a pair is if that tile is the final 14th tile that immediately gives you Mahjong (a complete winning hand).

How and when do you swap a tile for an exposed Joker on another player's rack?

When it is your turn, AFTER you have drawn your tile from the wall (or called a discard) and BEFORE you discard, you may place the exact natural tile matching an exposed Joker on a player's rack and take the Joker into your hand. You can make multiple Joker swaps in a single turn.

What makes a hand 'Dead' in American Mahjong?

A hand becomes Dead if a player makes an illegal exposure (e.g. exposing tiles on a concealed hand), has too many or too few tiles (must hold 13, or 14 on turn), exposes an impossible combination according to the NMJL card, uses a Joker in a pair or single, or makes a false Mahjong declaration. A Dead player stops drawing and discarding, cannot win, but remains at the table.

What happens if two players call the same discarded tile at the same time?

Under NMJL rules, if one player calls the discard for Mahjong (a winning hand), that player ALWAYS takes precedence over any player calling for a non-winning exposure (Pung, Kong, Quint). If two players both call the same tile for an exposure (not Mahjong), the player closest in counterclockwise turn order to the discarder gets the tile.

What is the difference between an Exposed (X) and Concealed (C) hand on the NMJL card?

Hands marked with an (X) on the NMJL card allow players to call opponent discards to expose completed melds (Pungs, Kongs, Quints) on their rack during the game. Hands marked with a (C) must remain completely hidden inside the rack until the entire 14-tile hand is ready for Mahjong; calling any mid-game discard kills the hand.

How are points and payouts settled when someone declares Mahjong?

If the winner declared Mahjong on a tile discarded by an opponent, the discarder pays DOUBLE the hand value shown on the card, while the other two players pay the normal base value. If the winner drew the final winning tile from the wall themselves (self-drawn), all three opponents pay DOUBLE the hand value. Hands made without Jokers double in payout value as well.

How to Play American Mahjong: Official Rules & Etiquette

A comprehensive masterclass in American Mahjong table mechanics, tile distribution, the Charleston exchange, meld exposures, turn-by-turn game execution, avoiding Dead Hand penalties, and tournament scoring.

1. Anatomy of the 152-Tile American Mahjong Set

American Mahjong utilizes exactly 152 tiles, categorized into five major functional groups:

Numbered Suits (108 tiles): Craks (Characters), Bams (Bamboo), and Dots (Circles). Numbers 1 through 9 with 4 identical tiles each.
Winds (16 tiles): 4 North, 4 East, 4 West, and 4 South tiles (compass directions).
Dragons (12 tiles): 4 Red Dragons, 4 Green Dragons, and 4 White Dragons (Soap).
Flowers (8 tiles): Decorative nature tiles used across multiple card families.
Jokers (8 tiles): Universal wildcards capable of completing melds of 3 or more tiles (Pungs, Kongs, Quints, Sextets). Jokers can NEVER be used in pairs or singles!

2. Table Setup, Rolling Dice & Dealing Quick Reckoner

Four players sit at a square table facing their respective racks. All 152 tiles are thoroughly shuffled face down in the table center. Each player stacks a double-tier wall of 19 tiles long (38 tiles per player, totaling 152 tiles across all 4 walls) and pushes it flush against their rack pusher.

Essential Dealing Numbers HUD

152 Total Tiles: Exactly 152 tiles in play; no blank tiles are used in American Mahjong.
19 × 2 Wall Stacks: Each of the 4 players builds a wall 19 stacks wide and 2 tiles high (38 tiles per wall).
14 Tiles for East (Dealer): East starts with 14 tiles and makes the opening discard to trigger regular play.
13 Tiles for Non-Dealers: South, West, and North each receive 13 tiles.

The Standard 4-Step Dealing Procedure

Wall Building: All 152 tiles are shuffled face down. Players build 4 walls of 19 double-stacked tiles pushed straight ahead.
Rolling the Dice & The Break: East throws two dice. The sum indicates which player's wall will be broken (East=1, 5, 9; South=2, 6, 10; West=3, 7, 11; North=4, 8, 12). That player counts stacks from the right equal to the roll, creates the break, and East draws from the open wall end.
3 Dealing Rotations (12 Tiles Each): Moving clockwise from East, players each take 2 stacks (4 tiles) over 3 rounds, totaling 12 tiles in hand.
The Pick & Jump (Final Hand Deal): East takes top tile 1 and tile 3 (giving East 14 tiles). South, West, and North each take 1 remaining tile (holding 13 tiles each). East discards first after the Charleston.

If you play with modern hardware, inspect our Mahjong Racks with Pushers Hardware Guide. If you only have 3 players, learn our Official 3-Player American Mahjong Adaptation.

3. The Charleston Exchange Phase

Before regular draw-and-discard turns commence, players participate in the mandatory Charleston passing ritual. Players pass sets of 3 unwanted tiles around the table in a fixed geometric order to hone their hands toward a target pattern on the NMJL card:

First Charleston (Compulsory): Pass Right (3 tiles), Pass Across (3 tiles), Pass Left (3 tiles; blind passing permitted up to 3 tiles).
Second Charleston (Optional): Requires all 4 players to consent. Sequence reverses: Pass Left, Pass Across, Pass Right.
Courtesy Pass: Optional final exchange of 0, 1, 2, or 3 tiles across the table by mutual agreement between opposite players.

For deep strategic passing rules and blind pass mechanics, visit Official Charleston Rules and Charleston Defense & Strategy.

4. Turn Order: Draw, Call, or Discard

Play proceeds counter-clockwise around the table starting with East:

Draw: The active player draws the top tile from the working wall end.
Evaluate: The player inspects their hand to decide whether to integrate the tile or set it aside.
Discard: The player places one tile face up in the table center and clearly names it aloud (e.g., "Five Bam").
Calling a Discard: Any opponent may immediately call "Call" or "Pung/Kong" for the freshly discarded tile to complete an exposed meld (Pung, Kong, Quint, or Sextet). Calling is not permitted for singles or pairs unless completing the entire 14-tile hand for Mahjong.

5. Melds & The Zero-Joker Pair Rule

Under NMJL rules, winning combinations consist of specific meld groupings:

Pair (2 Tiles) & Single (1 Tile): Zero Jokers Allowed. All singles and pairs on the NMJL card must be natural tiles. No calling discards unless it is the 14th winning Mahjong tile.
Pung (3 Identical Tiles): Example: 3-3-3. May contain 0, 1, or 2 Jokers. Can be called from any player's discard to expose on your rack.
Kong (4 Identical Tiles): Example: 7-7-7-7. May contain 0 to 3 Jokers.
Quint (5 Tiles) & Sextet (6 Tiles): Requires Jokers since only 4 of each natural tile exist in a set.

The Joker Swap Rule: During your turn, after drawing from the wall and before discarding, if an opponent has an exposed meld on their rack containing one or more Jokers, you may replace that Joker with the matching natural tile and take the Joker into your hand.

6. Realistic Match Walkthrough & Case Study

Here is a full demonstration of how a live tournament round unfolds from deal to win:

Phase 1 (The Deal & Initial Hand Assessment): East receives 14 tiles (2B, 4B, 6B, 8B, 2D, 4D, Soap, Joker, Flower, Green Dragon, 1B, 7C, 9B, North). East notes strong 2468 synergy. Discard candidates for the Charleston: 7 Crak, 9 Bam, North Wind.
Phase 2 (The Charleston Execution): East passes the 3 junk tiles. Through incoming passes, East receives 4 Bam, 6 Dot, and 8 Dot, elevating hand strength from 6/14 to 10/14 matching tiles.
Phase 3 (Mid-Game First Exposed Meld): On Turn 6, West discards 4 Bam. East immediately calls "CALL 4 BAM!" and exposes a Pung (two natural 4 Bams + one Joker) on the top surface of the rack, discarding a safe Green Dragon.
Phase 4 (Opponent Joker Swap): On Turn 11, South draws a natural 4 Bam from the wall. Before discarding, South legally replaces East's exposed Joker with the natural 4 Bam and takes the Joker.
Phase 5 (Mahjong Declaration & Payout): On Turn 18, East waits on a 2 Dot. North discards 2 Dot. East calls "MAHJONG!". Verification confirms FF 2468 2468 444 (25-point hand). North pays double (50 points), South and West pay 25 points each. East wins 100 points!

7. Top 10 Fatal Dead Hand Mistakes Checklist

A Dead Hand cannot win, stops drawing/discarding, and must pay the eventual winner. Avoid these 10 fatal infractions:

Never use a Joker in a Single or Pair: Instant dead hand upon discovery.
Never expose melds on a Concealed (C) Hand: Hands marked (C) must stay hidden until Mahjong.
Never claim a discard for a pair in your rack: Discards can only be claimed for pairs if it is the 14th tile declaring Mahjong.
Maintain strictly 13 tiles (14 on your turn): Miscounts kill the hand permanently.
Always vocalize "Call" or "Pung" before touching the tile: Table voice establishes priority.
Never inspect or rack incoming blind pass tiles: Blind tiles must pass directly through.
Obey strict Joker swap timing: Swap only on your turn, after drawing and before discarding.
Never draw from the wrong wall end: Draw strictly from the active open end.
Place exposures on top of the rack: Never conceal exposures inside the rack groove.
Beware false Mahjong declarations: Revealing your hand prematurely without a valid match kills your hand.

8. Table Etiquette & Official House Rules

Clear Discard Enunciation: Announce discards clearly ("Six Crak", "Soap") rather than casual slang.
The Tile Racking Rule: Once a drawn tile touches your rack's slanted surface, it is racked and previous discards are dead.
Calling Priority: Mahjong claims always supersede non-winning meld calls.
Grace with Errors: Announce dead hands politely and maintain tea table decorum.

9. Declaring Mahjong & Payout Accounting

Discard Win: Discarder pays 2x card value; remaining two opponents pay 1x.
Self-Drawn Win: All three opponents pay 2x card value.
Jokerless Bonus: Hands made without Jokers double the payout again.

For automated point settlements, use our American Mahjong Scoring Calculator.

10. Frequently Asked Questions (FAQ)

What tiles do I need to start American Mahjong?: An official set has 152 tiles: 108 suited (Bams, Craks, Dots), 16 Winds, 12 Dragons, 8 Flowers, and 8 Jokers, plus an official annual NMJL card.
How many people can play American Mahjong?: Standard play uses 4 players. For 3 players, use the official 3-player adaptation omitting the Across pass.
Is there an official 3-player version of American Mahjong?: Yes! Set up 4 walls, leave the North seat empty, omit the Across pass during the Charleston, and use the 4th wall for extra draws.
What is the difference between Chinese and American Mahjong?: American Mahjong uses 152 tiles with 8 Jokers, an annually changing card, the Charleston passing phase, and Quints/Sextets.
Can you call a discard to complete a pair in American Mahjong?: No. You can never expose a pair mid-game. You can only call a discard for a pair if it is the 14th tile declaring Mahjong.
How and when do you swap a tile for an exposed Joker?: On your turn, after drawing from the wall and before discarding, swap the matching natural tile into the opponent's exposed meld and take the Joker.
What makes a hand "Dead" in American Mahjong?: Tile count errors (not 13/14), exposing on concealed hands, illegal Joker in a pair, or false Mahjong declarations.
What happens if two players call the same discarded tile at the same time?: A call for Mahjong always wins over a call for an exposure. If both call for exposures, the player closest to the discarder's right wins.
What is the difference between an Exposed (X) and Concealed (C) hand on the NMJL card?: Exposed (X) hands allow mid-game discard calling to expose melds; Concealed (C) hands must remain hidden in the rack until declaring Mahjong.
How are points and payouts settled when someone declares Mahjong?: Discard win: discarder pays 2x, others pay 1x. Self-drawn: all three opponents pay 2x. Jokerless hands double the total payout.