Riichi Mahjong Trainer
Mahjong Learning App
Uzaku-style 何切る hands, with the ukeire count behind every answer.
How it works
See a hand
A real Uzaku-style 何切る hand is dealt — 13 tiles and your draw.
Pick your discard
Tap the tile you would cut. No account needed to try.
Learn why
Every answer shows its ukeire count and a clear explanation.
Everything you need to get sharper
250+ hands
A growing library of curated what-to-discard problems.
Ukeire on every answer
See exactly how many tiles each choice accepts.
Rules & glossary
Learn yaku, fu, scoring and 200+ terms — in the app and here.
JA / EN
Full Japanese and English, hands and explanations.
Streaks & stats
Track accuracy, streaks and your speed vs. others.
Free to try
Jump in with no account. Upgrade later if you want more.