Scoring
mcr
Exclusion rule
Also called: WMSC exclusion table
MCR rule: higher-scoring patterns automatically suppress the lower ones they contain.
MCR's exclusion rules prevent double-counting when a high-fan pattern fully includes a lower one. For example: Pure Straight (16 fan) automatically excludes the two Short Straights inside it. Four Concealed Pungs (64) excludes All Pungs (6) and Three Concealed Pungs (16). The WMSC publishes a full exclusion table — this calculator applies it automatically when computing your fan total.
Related terms