Mahjong Lab
Mahjong Lab
Tile Efficiency Tools
Hand Analysis
Training Guide
Daily Challenge
Open
中文
Open Menu
Yaku Recognition
Learn more
Practice
Timed
Level
Simple
Medium
Hard
Leaderboard
Focus Mode
Exit Focus Mode
Best
0
Score
0
Countdown
30
Tanyao
Pinfu
Iipeikou
Yakuhai · White
Yakuhai · Green
Yakuhai · Red
Restart
Daily Challenge
Five tenpai + five discard puzzles—same set worldwide today.
Play today's set
Related guides
Riichi Yaku
Tanyao
Pinfu
Iipeikou
Han
View all documentation