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Mosaic (Fill-a-Pix): Musivum

Mosaic: numbers that count their neighbours

The rules

  1. A number says how many cells are filled in the square of nine around it — itself and its eight neighbours.
  2. The number's own cell counts too, and may be filled.
  3. At the edge the square is smaller: six cells, or four in a corner.

How to play here

Tap a cell to fill it, again to mark it empty, again to clear it. Drag to mark several cells in one stroke.

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 Musivum 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.