Chinese competition rules: 81 stacking patterns and an 8-point minimum.
MCR (Competition Rules) Scoring
How It Works
MCR defines 81 scoring patterns, each worth a fixed point value. You need minimum 8 points to win. Patterns can stack (unlike some styles where higher patterns replace lower ones).
Selected Patterns by Point Value
88 Points (Maximum)
Pattern
Description
Big Four Winds
Triplets of all four winds
Big Three Dragons
Triplets of all three dragons
All Green
Only green tiles (2-3-4-6-8 bamboo + green dragon)
Nine Gates
1112345678999 + one more of same suit
Four Kongs
Four quads
Seven Shifted Pairs
Seven consecutive pairs in one suit (e.g., 1-1-2-2-3-3-4-4-5-5-6-6-7-7)
Thirteen Orphans
One each of all terminals and honors + one duplicate
64 Points
Pattern
Description
All Terminals
Only 1s and 9s
Little Four Winds
Three wind triplets + wind pair
Little Three Dragons
Two dragon triplets + dragon pair
All Honors
Only winds and dragons
Four Concealed Pungs
Four self-drawn triplets
Pure Terminal Chows
1-2-3 and 7-8-9 of all three suits + terminal pair
48 Points
Pattern
Description
Quadruple Chow
Four identical sequences
Four Pure Shifted Pungs
Four triplets in one suit, each shifted by 1 (e.g., 1-1-1, 2-2-2, 3-3-3, 4-4-4)