Riichi Tracker

A riichi mahjong hand calculator and interactive compass.
Also includes a reference for yaku and scoring.

Features

• Works on desktop and mobile!
• Offline-usable progressive web app.
• Theme (light and dark) switcher.

Calculator

• Interactive meld creation
• Disallow invalid hands
• Sanma score distributions
• Han and fu calculator
• House rules configuration
  • Pao points distribution
  • Zero or three red fives
  • Optional and local yaku
  • Other scoring variations

Compass

• Automatic score transfers with calculator
• Riichi sticks and repeat sticks
• Exhaustive and abortive draws
• Sanma compass

Reference

• Tile reference
• Yaku reference with examples and filters
• Scoring table and scoring formula

Planned

• Language switcher (English, English w/ Romaji, Japanese, other?).
• Tracking multiple games?
• Game history?