MatrixMajhong

MatrixMajhong is a study companion for Japanese Riichi mahjong players. It collects the most-asked questions from the table — "How much is this hand worth?", "Should I riichi here?", "Am I furiten?" — and answers them with proper rule logic, clear breakdowns, and visual charts.

Whether you're a complete beginner reading rulebooks for the first time, or a long-time Tenhou regular tuning your post-game review process, MatrixMajhong gives you the same offline-first tooling — no account, no cloud sync, no advertising.