Free puzzle · ages 6+
Sudoku for Kids
Made famous by Nikoli in Japan. Fill the grid so each row, column and box has every number exactly once. Starts with a small 4 × 4 grid.
Named and made famous by Nikoli in Japan in the 1980s.
- 6+ages
- 5levels
- 496,000challenges
- Japanfrom
How to play
- Fill every empty square with a number.
- Each row, column and box must have each number exactly once.
- Tap a square, then a number. Numbers that clash turn red.
- Start on a 4 × 4 grid, then 6 × 6 and 9 × 9.
What your child learns
Starting at 4 × 4 makes sudoku reachable for six-year-olds, and every puzzle has exactly one answer that logic alone can find, no guessing needed.
- Logical reasoning Rule things out until only one answer is left.
- Number sense Spot which number is missing, fast.
- Persistence Try, check and change your mind.
- Working memory Keep track of which numbers are still missing.
- Pattern recognition Spot rows and boxes that are nearly full.
Pick a level
Start easy, or jump straight to a challenge.
Ready to try Sudoku?
Free in the browser on phones, tablets and computers. No sign-up, no ads.
Questions parents ask
Is Sudoku free?
The first 3 Beginner challenges of Sudoku are free in the browser, with no sign-up and no ads. Family Pro unlocks every challenge at all five levels, the hint coach, solutions and saved progress. During early access, every level is open to try.
What age is Sudoku for?
Sudoku is recommended for ages 6+. Start on Beginner and move up a level whenever it feels easy.
What does Sudoku teach?
Logical reasoning: Rule things out until only one answer is left. Number sense: Spot which number is missing, fast. Persistence: Try, check and change your mind. Working memory: Keep track of which numbers are still missing. Pattern recognition: Spot rows and boxes that are nearly full.
Does it work on phones and tablets?
Yes. It plays in any modern browser on phones, tablets and computers, with touch or a mouse.
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