Filling
A lone 1 is complete, but a 3 needs company. Grow groups of matching digits until each group's size agrees with its number.
How to play
Select an empty cell and type a digit. A group of three touching 3s is complete; a fourth 3 touching it on a side would break the rule. Backspace clears a choice.
Playing tip. A number tells you the size of its connected region. When a region reaches that size, its boundary gives you a clue about adjacent cells.
Read the game instructions ↗Game by / provided by Simon Tatham’s Portable Puzzle Collection ↗ · License
Player corner
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Tips & questions
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