Things You'll Need
Instructions
Make a kong by collecting four identical tiles.
Keep in mind that you can't form a kong from a melded triplet and a discard, because you already have a discard in the set.
Conceal a kong to keep the tiles available to complete sets of three. But remember that if someone else completes a hand while you are holding it, it will only count as a pung (three of a kind).
Show a kong by laying the four tiles side-by-side with the two inside tiles face up and the two outside tiles face down.