Toitoi
2 fan#All four sets are pungs (or kongs). Called pungs are fine.
Example
9 Characters4 Dots4 Dots4 Dots7 Bamboo7 Bamboo7 Bamboo
Win9 Characters
2 Characters2 Characters2 Characters5 Dots5 Dots5 Dots
Counted by the scoring program:
- Toitoi2 han · Japanese mahjong yaku
- Total2 han, 40 fu · Japanese mahjong yaku
Counterexample
9 Characters4 Dots4 Dots4 Dots7 Bamboo8 Bamboo9 Bamboo
Win9 Characters
2 Characters2 Characters2 Characters5 Dots5 Dots5 Dots
One chow among them means it is not all pungs.