Mahjong Rulesets Compared
Mahjong is not a single game. American Mah Jongg, Riichi, and Hong Kong mahjong share tile-matching roots but diverge in strategy, scoring, and social context. This guide compares the three major traditions you'll encounter in the Lucky Tile Company directory.
American Mah Jongg
What it is
American Mah Jongg is a strategic matching game played with tiles, jokers, and an official card published annually by the National Mah Jongg League (NMJL). The card lists specific hands—combinations of tiles organized into categories such as Singles and Pairs, Consecutive Run, or 369—and players compete to match one of these patterns before their opponents do.
The game uses a 152-tile set that includes eight jokers, which can substitute for most other tiles. Players reveal their winning hand immediately upon completion and score based on the hand's point value as shown on the card. American Mah Jongg emphasizes strategic tile selection, hand recognition, and concealment.
Typical setting
American Mah Jongg is primarily social and often played in community settings such as libraries, senior centers, private homes, and organized leagues. Racks are standard equipment, and games move at a moderate pace. The annual card update—which changes available hands each year—keeps gameplay fresh and encourages regular players to learn new patterns.
Instruction is common. Many American Mah Jongg communities welcome beginners who have completed an introductory class and can identify tiles, understand the Charleston (the opening tile-passing phase), and follow the card.
How it appears in this directory
Listings tagged American follow American Mah Jongg rules and typically expect players to bring a current NMJL card. Beginner lessons explain the card structure, Charleston mechanics, and basic hand strategy. Open play assumes participants already know these fundamentals.
Many American Mah Jongg games note whether they provide tiles, mats, and racks, or whether players should bring their own equipment. Check the listing's Level and Cost fields to confirm what's included.
Riichi
What it is
Riichi is the modern Japanese mahjong ruleset, formalized in the 20th century and widely played in competitive and casual contexts. The game uses a 136-tile set without jokers and follows a structured scoring system based on combinations called yaku (winning patterns). Players build hands by drawing and discarding tiles, aiming to complete a winning hand of 14 tiles organized into groups of three and a pair.
One defining feature is the riichi declaration: a player with a concealed hand that is one tile away from winning can declare riichi by placing a 1000-point stick on the table and committing to win without changing their hand. This raises the hand's value but locks in the player's strategy. Riichi also incorporates dora tiles (bonus indicators) and furiten (restrictions on winning after discarding a tile you could have won with), adding layers of tactical depth.
Typical setting
Riichi mahjong is played in clubs, online platforms, and organized tournaments. The competitive scene is robust, and many groups welcome newcomers through beginner-friendly sessions that teach yaku, scoring, and game flow. Riichi games move quickly compared to American Mah Jongg, and players often track scores precisely using point sticks.
If you're new to Riichi, expect to encounter terms such as tenpai (one tile away from winning), kan (declaring a quad), and ron (winning off another player's discard). Beginner lessons typically cover these concepts before moving to open play.
How it appears in this directory
Listings tagged Riichi use Japanese mahjong rules. Beginner sessions are common and usually include instruction on yaku, hand construction, and scoring. Advanced tables may assume familiarity with all standard yaku and tournament etiquette.
Some Riichi listings note whether they provide tile sets or expect players to bring their own. Online training resources are also widely available; see online training for self-paced Riichi courses.
Hong Kong Mahjong
What it is
Hong Kong mahjong refers to the Cantonese-style variant common in southern China and Hong Kong. This fast-paced, social game uses a 144-tile set (including flowers and seasons) and follows flexible house rules that vary by group. Hands are typically concealed, and scoring often includes bonuses for special tiles, self-drawn wins, and specific patterns.
Unlike American Mah Jongg's fixed card or Riichi's codified yaku, Hong Kong mahjong relies on traditional combinations such as all pungs (triplets), mixed suits, or all honors. House rules determine which patterns score higher and how payments are calculated. This flexibility makes Hong Kong mahjong adaptable but also means you should confirm the exact rules with the host before playing.
Typical setting
Hong Kong mahjong is often played in family gatherings, restaurants, and social clubs. Games move quickly, and players typically bet small amounts or play for points only. The social atmosphere is relaxed, and experienced players may coach beginners during casual sessions.
Because house rules vary, it's important to ask the host which scoring system the table uses. Some groups follow simplified modern rules, while others maintain traditional regional variations.
How it appears in this directory
Listings tagged Hong Kong follow Cantonese-style mahjong rules. Check the listing details for notes about specific house rules or scoring systems. Beginner-friendly tables often provide a printed scoring reference or verbal guidance during play.
Other Chinese mahjong variants—such as Taiwanese mahjong or Chinese Official (MCR)—may appear under Taiwanese or Other depending on the style. Read the listing's full description to understand which tradition the table follows.
How to choose
If you're deciding which ruleset to learn, consider your goals:
- American Mah Jongg if you want a strategic, pattern-matching game with a strong social scene and abundant beginner classes in the U.S.
- Riichi if you're drawn to competitive play, precise scoring, and a game with a well-defined international ruleset and tournament structure.
- Hong Kong mahjong if you prefer fast, flexible gameplay and have access to a group that can teach you their specific house rules.
You're not locked into one tradition. Many players learn multiple rulesets over time. Start with whichever style has accessible beginner resources in your area, then explore others as your interest grows.
Find a table near you
The Lucky Tile Company directory organizes mahjong games and lessons by city and labels each listing with its ruleset. Browse your city to see which traditions have active tables:
For remote learning, check online training for live classes and self-paced courses covering American Mah Jongg, Riichi, and Hong Kong fundamentals.