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10×10 Shikaku puzzles
The 10×10 grid is the classic Shikaku size you will find in newspapers and puzzle books. With 100 cells and roughly 13–20 numbers, it rewards a methodical approach: place what is forced, then look for cells only one number can reach.
0 rectangles · Drag to draw · Tap a rectangle to erase · Ctrl+Z undo · H hint
Solving a 10×10 Shikaku
- Scan the border first — edges cut the options of every number on them.
- A cell surrounded by placed rectangles often has only one number that can reach it.
- On Hard, expect to use overlap reasoning several times.
New to the puzzle? Read how to play Shikaku and then the strategy guide.
10×10 Shikaku questions
How long does a 10×10 Shikaku take?
Most players finish a 10×10 Shikaku in about 6–15 minutes, depending on the difficulty level and experience. Your personal best and average times are saved in your browser.
How many numbers are in a 10×10 Shikaku?
It depends on the level. Easy puzzles use more, smaller rectangles; Hard puzzles use fewer, larger ones. Whatever the count, the numbers always add up to 100, the total number of cells.
Is every 10×10 puzzle solvable without guessing?
Yes. Every puzzle has exactly one solution, verified by our solver. Easy puzzles need only basic deductions; Hard puzzles may need longer chains of reasoning, but never a lucky guess.