Every set is a triplet.
All four sets are pungs or kongs, with an ordinary pair to finish. No chow may appear. A kong counts as a pung for this purpose, so a hand mixing the two still qualifies.
The sets may be exposed or concealed. It is three faan, and it is one of the most reachable middle patterns in the game.
Pungs are slower than chows, because a run completes from either end while a triplet needs one exact tile. Commit early or not at all.
If you hold two pairs by the fifth or sixth turn, the hand is realistic. If you are still holding chows halfway through, finish an ordinary hand instead.
Treating Seven Pairs as All Pungs. Both avoid chows, but they are different shapes and score separately. Seven Pairs is seven pairs and no sets at all. All Pungs needs four actual triplets plus a pair.
It stacks with suit patterns freely. All Pungs with Mixed One Suit is three plus three, six faan, and that is one of the most common good hands you will hold. Dragon and wind pungs inside it each add one more. All Honours and All Terminals both contain it by definition.
Do kongs break All Pungs?
No. A kong is a triplet with a fourth tile, so pungs and kongs together still form the pattern.
Can the hand be partly exposed?
Yes. Claiming discards to build the triplets is fine. Staying concealed earns Concealed Hand as a separate row.
Does one chow really ruin it?
Yes. There is no partial credit. A single chow removes the whole three faan.
Play Mahjong Winds
Every win shows its faan line by line, using the table on this page.