Moon Sudoku Free Picture Sudoku for Kids
Sudoku with moons, stars and rockets, from tiny 4×4 grids for beginners to big 9×9 puzzles. Every puzzle is new, with friendly hints. Free, with no ads.
- 4–12 yearsSuggested ages
- LogicMain skill
- FreeNo ads, no in-app purchases
- Any devicePhone, tablet or computer
About Moon Sudoku
Moon Sudoku brings sudoku to children with pictures instead of numbers. The rule is simple: every row, every column and every box needs each picture once. Little ones start on a Tiny 4×4 grid with four pictures, then move to a Small 6×6 grid and the Big 9×9 puzzles in easy, medium and hard. Prefer numbers? Switch from pictures to numbers with one tap.
Mistakes are gentle: if two of the same picture land in a row, column or box, they wobble red and the game says where the clash is. Stuck? A hint fills in a square and explains why only that picture fits. A finished row, column or box sparkles, and every solved puzzle shows the time, the best time and stars.
How to play Moon Sudoku
- Pick pictures or numbers, then choose a grid: Tiny, Small or Big.
- Tap a picture at the bottom, then tap the empty squares where it goes. Or tap a square first, then a picture.
- If two of the same wobble red, move one of them. The rubber and undo buttons help.
- Stuck? Tap 💡 for a hint. On the 6×6 and 9×9 grids, ✏️ Notes lets you jot down small guesses.
- Fill every square to solve the puzzle, then try the next one or a bigger grid.
What children learn
- LogicWorking out which picture must go in a square because all the others are already used.
- ConcentrationKeeping track of rows, columns and boxes all at once.
- PatienceTrying an idea, checking it and fixing it, square by square.
- PlanningUsing notes on the bigger grids to keep track of what could still go where.
Great for ages 4 to 12
See more games for each age:
Levels and difficulty
There are five grids: Tiny 4×4, Small 6×6 and Big 9×9 in easy, medium and hard, with fewer pictures filled in at the start as they get harder. Every puzzle is made fresh and has exactly one answer. Solving it with no repeats and no hints gives 3 stars. The game keeps your best time for each grid and remembers an unfinished puzzle so you can carry on later.
Tips for parents and teachers
- Start on the Tiny grid together and say the rule out loud: one of each in every row, column and box.
- Look for a row or box with only one empty square: that's the easiest place to start.
- Try a hint and talk about its reason together, then look for another square like it.
- Older children can race their own best time on the Big grids.
Moon Sudoku questions
Can young children really play sudoku?
Yes. The Tiny 4×4 grid has only four pictures and lots of filled squares, so children from about 4 can solve it with a little help, and the rule is the same as on the big grids.
Does Moon Sudoku run out of puzzles?
No. Every puzzle is made fresh when you start it, and each one has exactly one answer.
Is Moon Sudoku free?
Yes. Moon Sudoku is completely free, with no ads and no in-app purchases.
Do I need to download Moon Sudoku?
No. It plays right in the web browser on phones, tablets and computers. You can also add it to your home screen like an app.
Does my child need an account?
No. Anyone can play straight away. A free Wizzymoon account is optional: it saves progress across devices and puts scores on leaderboards.
Is Moon Sudoku safe for children?
Yes. There are no ads, no chat and no links to other sites. Other players only see a username on a leaderboard, and friends added with a secret code can also see when you're online.
Ready to play Moon Sudoku?
It's free, with no ads and nothing to download.
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