About mahjchina: Teaching Mahjong Across Languages
mahjchina offers online four-player Mahjong with Quick Match, separate rules guides and scoring calculators, plus three independent learning or puzzle activities.
What the guides cover
Our guides describe the rules implemented in mahjchina. They are not a universal rulebook for every local table or tournament. Each variant has its own winning requirements, hand patterns and scoring.
How the calculators work
The calculators use the game server’s scoring implementation, compiled to run on your device. Entered tiles are evaluated locally after the engine downloads. A result checks one winner under the selected conditions; it is not a complete match ledger.
The history introduction identifies the Smithsonian National Museum of American History articles and collection records supporting it. The museum is a cited source, not an author, partner or endorser of mahjchina.
The teaching site is available in English, Simplified Chinese, Traditional Chinese, Japanese and Spanish. A translation does not define a separate ruleset. If an explanation or calculation seems wrong, send the page, ruleset and hand example through feedback.
These are the project channels linked by mahjchina. Use the feedback form for a reproducible rules or scoring correction; a community link is not an independent review.
mahjchina Hong Kong profile: ordinary hands need 3 fan; self-draw charges each opponent twice the base. These values are not a universal Hong Kong payment table.
The MCR fan catalogue is based on the WMO 2006 reference. The calculator applies mahjchina’s implemented scoring and one-winner payments; it does not reproduce every tournament procedure.
mahjchina Sichuan profile: no chow, clear the missing suit, root-adjusted base capped at 8. Self-draw normally pays base + 1 from each active opponent; previous kong transfers are separate.
mahjchina Taiwan profile: a base win is 2 tai, concealed-triplet awards can stack, and All Triplets is 10 tai. Agree on the table’s tai schedule before using these values elsewhere.
mahjchina Riichi profile: double-wind pair 2 fu; renhou as a separate 5-han alternative; kiriage mangan enabled; no special-wait double yakuman. Tournament and other platform settings can differ.
How to verify a rule or result
The public worked examples are checked against the same scoring engine during the website build. This verifies agreement with the implementation; it does not certify every local or tournament rule. For corrections, include the ruleset, page, winning tile and conditions. Rule choices below take precedence for mahjchina calculators.
The MCR catalogue uses the WMO 2006 reference linked below. WRC publishes its own Riichi competition rules for comparison; mahjchina’s listed settings are not a claim of WRC certification. Hong Kong, Taiwan and Sichuan values here describe our house profiles. Historical references are listed on the introduction page.
mahjchina maintains these explanations. Published examples are checked against the scoring engine. Send a reproducible hand, the rule version you use and your expected result; actual player reviews will be credited with permission.
Play four-player Mahjong in your browser with Quick Match. Start with Hong Kong Mahjong, or explore another ruleset. Guides, scoring tools and tile puzzles are here whenever you want them.
