Here is one Fillomino puzzle:
Remove all fours, and it turns into a Slitherlink:
Remove all threes, too, and it turns into a Tapa:
Remove all twos as well and it turns into a Simple Loop (with the ones acting as black squares):
Here is one Fillomino puzzle:
Remove all fours, and it turns into a Slitherlink:
Remove all threes, too, and it turns into a Tapa:
Remove all twos as well and it turns into a Simple Loop (with the ones acting as black squares):