If you've ever searched for Mahjong online, you've probably noticed there seem to be two very different games going by the same name. American Mahjong and Chinese Mahjong share the same roots — and the same beautiful tiles — but they play quite differently. Whether you're a Chinese Mahjong player curious about the American version, or a complete newcomer trying to figure out which game to learn, this guide will clear things up!
A Shared History
Both versions trace back to China in the 19th century. Mahjong arrived in the United States in the 1920s and quickly became a craze. Over the decades, American players adapted the rules to suit their own style of play, and by the mid-20th century, American Mahjong had developed into its own distinct game — complete with its own governing body, the National Mah Jongg League (NMJL), founded in 1937.
The Key Differences
1. The Card (American Mahjong Only)
The most distinctive feature of American Mahjong is the NMJL card — an annual card that lists all valid winning hands for that year. Every player must use this card; you cannot win with a hand that isn't on it. The card changes every year, which keeps the game fresh and gives experienced players something new to learn each season.
Chinese Mahjong has no such card. Winning hands are defined by the rules of the specific variant being played (there are many — Cantonese, Shanghainese, Taiwanese, etc.), but they don't change year to year.
2. Joker Tiles
American Mahjong uses 8 Joker tiles, which act as wild cards and can substitute for any tile in a group of three or more. Jokers are a central strategic element of the American game.
Most Chinese Mahjong variants do not use Joker tiles at all. Hands must be built entirely from natural tiles, which changes the strategy significantly.
3. The Charleston
American Mahjong has a unique pre-game ritual called the Charleston, where players pass unwanted tiles to their neighbors (right, across, left) before play begins. This helps everyone build a better hand and is a beloved social element of the game.
Chinese Mahjong has no equivalent — play begins immediately after tiles are dealt.
4. Number of Tiles
A standard American Mahjong set has 152 tiles — the standard Chinese set of 144 tiles plus 8 Jokers. Some American sets also include extra Flowers.
Chinese Mahjong sets typically have 144 tiles, though this varies by regional variant.
5. Winning Hands
In Chinese Mahjong, a winning hand generally consists of four sets (groups of three tiles — either a sequence or three of a kind) plus one pair. This structure is fairly consistent across variants.
In American Mahjong, winning hands are much more varied and defined entirely by the NMJL card. Hands can include pairs, groups of three, groups of four, quints (five of a kind using Jokers), and more — in many different combinations.
6. Scoring
Chinese Mahjong uses a points-based scoring system where the value of a hand depends on its complexity, the tiles used, and how you won. Scoring can get quite intricate.
American Mahjong uses a simpler payment system: each hand on the NMJL card has a fixed value (e.g., 25 or 50 points), and the player who discards the winning tile pays the winner. If the winner draws from the wall, all three other players pay.
7. Social Culture
Both versions are wonderfully social games, but American Mahjong has a particularly strong community culture in the United States, especially among women's groups and clubs. The NMJL card creates a shared annual experience — everyone is learning the same new hands at the same time each year.
Which Should You Learn?
If you're in the United States and looking to join a local group or play with friends, American Mahjong is almost certainly what they're playing. It's also a great choice if you enjoy structured, card-based strategy and love the social ritual of the Charleston.
If you're interested in the broader world of Mahjong or want to play online with international players, exploring Chinese Mahjong variants is worthwhile — though be aware there are many regional rule sets to navigate.
Either way, once you learn one version, picking up the other becomes much easier — the tiles and basic concepts carry over!
Start with American Mahjong
Ready to dive into American Mahjong? Our American Mahj Learning Bundle is designed to get beginners up and playing quickly, with visual guides, hand references and to help you start winning sooner. Welcome to the table!
