Haipai
Study Your Mahjong Mistakes
Upload your Mortal AI analysis, see every mistake categorized, and learn until the leaks are gone.
Auto-Categorized Mistakes
Upload your Mortal analysis and every mistake gets classified — tile efficiency, defense, push/fold, riichi timing, and more. No manual sorting.
Track Your Improvement
See trends over time — EV loss per game, severity breakdown, and skill area progression. Know exactly where you're getting better.
Per-game breakdown
Trends
Create a free account to upload your games and track your progress.