Calling
Calling and exposures in American Mah Jongg.
A call can accelerate your hand, but it also reveals information. Strong players weigh both sides before exposing tiles.
American Mah Jongg
Why Call
Call when the discard clearly completes a useful group for your target hand and the hand permits exposure.
Why Pass
Pass when a claim would reveal too much, force you into a weak target, or break a concealed hand requirement.
Reading Exposures
Exposed groups narrow an opponent's possible hands. Use them to avoid dangerous discards and to decide whether your own target remains realistic.