64 · Pung patterns
Conditions
Four concealed pungs, including concealed kongs. Fully Concealed Hand may be added on self-draw under the adopted WMO interpretation.
How to build it
Keep pairs of the required ranks or honors as seeds for pungs. Before calling a chow, check whether it removes a concealed-pung or concealed-hand pattern.
Key tile shapes
Patterns not counted together
All Pungs · Concealed Hand · Three Concealed Pungs · Two Concealed Pungs