Mensura · Free in your browser
Fillomino: Mensura
Every number is the size of its own region
The rules
- Write a number into every cell so that each connected region of equal numbers has exactly that many cells.
- Two regions carrying the same number may never touch — they would only be one region, of the wrong size.
- Every single cell on the board carries a number by the end — none is left empty.
- Only one mistake is pointed out as you play: a region too big for its own number, or boxed in too tightly to ever reach it. A board left with empty cells won't be marked — so a board with no warnings on it can still be unfinished.
- Pick a number below the board, then tap a cell or drag across the cells it belongs in. A stroke that starts on a cell already showing that number rubs out instead, and a long press clears a whole region.
- Every puzzle here is solvable by reasoning alone. You never have to guess.
- Got it
How to play here
Three ways to play
Campaign
Chapters that start gently and bring in one new idea at a time.
Daily puzzle
A new board every day, the same for everyone. Solve every one in a month and that month's trophy is yours.
Endless
Keep going as long as you like, in Easy, Medium, Hard and Expert.
Common questions
Is Mensura free?
Yes. You can play here without paying and without an account. Ads keep the lights on.
Where is my progress saved?
In this browser, on this device. If you clear the site data, your progress goes with it. A free Solvarium account keeps it safe.
Does it work on a phone or tablet?
Yes. It runs in any current browser on phones, tablets and computers, and the board resizes to fit the screen.
Does every puzzle really have one solution?
Yes. Every board goes through a solver before it ships, and anything with more than one solution is thrown out.