Chinese Official Mahjong — free online Board game
The competition rules: 136 tiles, 81 scoring patterns, 8 fan to win.
Chinese Official Mahjong, also known as MCR, is the international competition ruleset, free to play in your browser with no download and no sign-up. Play 136 tiles against three computer opponents; a winning hand needs at least 8 fan from 81 scoring patterns, with a built-in scoring reference.
How to play Chinese Official Mahjong
- A winning hand is four melds (chows, pungs or kongs) and a pair.
- Claim a discard to complete a chow from the player on your left, or a pung or kong from anyone.
- Your hand must be worth at least 8 fan from the 81 official scoring patterns to win.
- A session is 13 hands: winning scores points, dealing in loses them.
Frequently asked questions
What is the minimum to win?
A hand needs at least 8 fan under the official rules.
Is it free?
Yes. Play against three computer opponents in your browser for free.


