Free printable shikaku
Shikaku is a Japanese rectangle-division puzzle: you slice a numbered grid into rectangles until every cell belongs to exactly one. Each printed number is an area clue, so a 6 must live inside a six-cell rectangle and no rectangle may hold a second number. Solvers who like spatial Nikoli puzzles, graph paper, and slow counting tend to enjoy it more than speed contests or word games.
Solution page included
Peek at the solution
This download is a high-resolution PNG of a 10x10 Shikaku page sized for 6x9 inches, plus a matching solution that shows the finished rectangles. There is no signup. Print the puzzle, then keep the answer key aside until you want to check your borders.
How to play
- Read the rule at the top: every rectangle holds exactly one number, equal to its area (width times height).
- Start with large clues such as 14, 12, and 10 — they have fewer possible rectangle shapes on this 10x10 grid.
- Draw a rectangle around each clue so it covers empty cells without swallowing a second number.
- Fill leftover 2s as 1-by-2 pairs once the bigger rectangles have claimed their space.
- Confirm every cell belongs to one rectangle and that no two rectangles overlap.
Print at 100% scale on letter or A4 paper so the 10x10 cells stay large enough to draw rectangle borders.
Frequently asked questions
Where is the Shikaku answer key?
A second printable image on this page is the solution. It redraws the same 10x10 grid with thick rectangle borders around each clue so you can compare your partition. Download that PNG with the puzzle, then look only after you have finished or gotten stuck.
Is this Shikaku printable really free?
Yes. Both the puzzle and the solution download as PNG files at no cost, with no account and no email gate. You may print them for personal use or a classroom table. This page is a single sheet, not a book or a PDF pack.
Who is this 10x10 Shikaku good for?
It suits older kids and adults who like geometry more than vocabulary. If you enjoy counting cells, testing 1-by-n versus 2-by-n shapes, and drawing clean borders, this is a calm one-sitting puzzle. Beginners can start with the 2s and 3s; the 14 and 12 clues force the bigger rectangles.
How should I print the Shikaku page?
Print the high-resolution PNG at 100% scale on letter or A4 paper so the 6x9 inch layout keeps the 10x10 cells large enough to pencil. Turn off fit-to-page shrinking. Black ink on plain paper is enough; a slightly heavier sheet is nicer if you will erase borders.
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