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Mahjong Theory & Score Calculator

Normal Type Theory
Chinese Official Mahjong (MCR) Standard Type Theory
Japanese Riichi Mahjong (RCR) Standard Type Theory
Hong Kong Style Taiwanese Mahjong Theory
Chinese Official Mahjong (MCR) Points Calculator
Prevalent
Seat
Winning Way
Winning Status
Ready to start!
Japanese Riichi Mahjong (RCR) Scores Calculator
Prevailing
Seat
Winning Way
Riichi Status
Winning Status
Rules Settings
Yakuman
Double Wind Pair
Rounded-up Mangan
Open All Simples
Self-drawn Pinfu
Seven Pairs
After a Kong
Fan Limit
Blessing of Man
Big Seven Stars
Minipoints Jumping
Scores Rounding up
Dora Indicator
Ura Dora Indicator
Ready to start!
Related Rules:
v4.5.0