What is it?
Sudoku is a logic puzzle: fill every row, column and box with numbers and no repeats. Young children start with 4×4 and 6×6 grids, followed by five 9×9 levels. Every puzzle has exactly one solution, and a hint explains the reason instead of only placing a number.
How it works
- Pick a level, then tap a square and a number.
- Use notes to write the possible numbers.
- Press the hint button to have the next step explained, then "Show answer" if needed.
- New to sudoku? Start with "Learn sudoku".
Benefits for kids
- It grows logical thinking and patience.
- Children learn to test possibilities and rule them out.
- It needs no arithmetic, so it suits children who feel unsure about math.
Common questions
4×4 suits children from about age 6, moving gradually to 6×6 and then 9×9.
Yes. Every puzzle is checked to have exactly one solution.
No. It saves on your device, and "Continue last game" brings it back.