Free printable fillomino
Fillomino is a region-building logic puzzle: every number you write belongs to a polyomino of that exact size. Two regions that share the same size may not touch along an edge, so a 7-block can never sit beside another 7-block. This 8x8, with a large 16 already occupying the middle, is for solvers who like shading puzzles such as Nurikabe but prefer writing numbers to painting cells.
Solution page included
Peek at the solution

This download is a 6x9 inch high-resolution PNG of Puzzle 1. A separate solution PNG shows every region completed. There is no signup, no PDF, and no interactive solver — print the PNG at full size and work it with a pencil.
How to play
- Each given number is the size of the region that cell belongs to; a 16 must grow into a 16-cell polyomino, a 2 into a pair, and so on.
- Fill every empty cell with a number so the finished grid is partitioned into those regions.
- Cells of a region must connect by edges, not merely by corners.
- Two regions of the same size may not share an edge — separate equal sizes with a different number.
- The large block of 16s already on the page is one region; extend it until it contains exactly sixteen cells, then finish the smaller islands around it.
Print at 100% scale on letter or A4 so the 8x8 cells stay large enough for two-digit numbers.
Frequently asked questions
Does this Fillomino come with a solution?
Yes. A solution PNG is part of the download and shows every cell filled, with each polyomino at its correct size. Use it to check the 16-cell region in the middle first, then the smaller 2s, 3s, and 7s around the border.
Is this Fillomino free to print?
Yes. The puzzle is a free high-resolution PNG. No account, email, or payment is required to download it. Print extra copies if you want to try again from a clean grid.
Who is this Fillomino puzzle for?
It is aimed at experienced logic-puzzle solvers rather than early elementary students. If you already enjoy Nurikabe, LITS, or other region puzzles, the 8x8 with a 16-cell clue is a fair single-page challenge. Comfort with counting connected squares matters more than arithmetic skill.
How do I print this Fillomino so I can write in the cells?
Print the PNG at 100% scale on letter or A4 paper so the 6x9 inch 8x8 stays close to its designed size. That leaves each cell large enough for a two-digit number such as 16. Turn off fit-to-page, which would shrink the grid and crowd the clues.
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