Winds & dragons・H1
25 points#Groups of three or more may be exposed by calling; jokers only go in groups of three or more.
Example
NNNN EEE WWW SSSS
East WindEast WindEast WindSouth WindSouth WindSouth WindSouth WindWest WindWest WindWest WindNorth WindNorth WindNorth WindNorth Wind
The scoring program says: 50 points for this line (no jokers, doubled).
Counterexample
1 CharactersEast WindEast WindEast WindSouth WindSouth WindSouth WindSouth WindWest WindWest WindWest WindNorth WindNorth WindNorth Wind
With the north wind missing and an extra 1-character, the line no longer forms.