Mahjong Lab
Mahjong Lab
Tile Efficiency Tools
Hand Analysis
Training Guide
Daily Challenge
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One-Shanten Training
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Practice
Timed
Tiles Count
7
10
13
Leaderboard
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Best
0
Score
0
Countdown
20
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Daily Challenge
Five tenpai + five discard puzzles—same set worldwide today.
Play today's set
Related guides
Ukeire
Shanten
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