Mahjong Hand Score Calculator

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Score Mahjong Hands based on Japanese Competition Riichi rules.

Use this app to score your hand, help you learn what's valid, and help you learn how to get the most points.

Play around with meld combinations to see what they're worth, this can be a very helpful tool for learning the game!

- Support for most official yakuman hands

- Includes all official yaku

- Drag-and-drop tiles to build melds

- Written in English (more languages to come)

Known Issues:

Currently not supporting:

- 7-pairs hands

- 9 Gates yakuman