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Fun Sudoku for Kids
Friendly number puzzles in lots of sizes and styles. Pick a game, choose how easy or tricky, and start playing — no signup, no fuss.
Pick a game
Each one looks different but they all use the same friendly rules.
Classic Sudoku
The original 9×9 puzzle. Fill every row, column and box with 1–9.
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Killer Sudoku
Sudoku with little maths. Fill the grid so each cage adds up.
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Jigsaw Sudoku
Same rules, but the boxes are wiggly jigsaw shapes.
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X-Sudoku
Classic sudoku plus two diagonals — the X adds extra logic.
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Hyper Sudoku
Classic sudoku plus four extra 3×3 mini-boxes hidden in the grid.
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Circle Sudoku
A round board of rings and sectors using the digits 1–6.
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Color Sudoku
A 6×6 grid played with six bright colours instead of numbers.
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Shape Sudoku
A 6×6 grid played with six bright shapes — circle, square, triangle, star, heart and diamond.
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Space Sudoku
A 6×6 grid played with six space friends — rocket, planet, star, moon, alien and comet.
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Battleship Sudoku
Solve the sudoku and hunt down the hidden fleet. Mark ships with the anchor button.
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Thermo Sudoku
Classic sudoku plus thermometers — numbers must climb up each one like temperature.
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Skyscraper Sudoku
Classic sudoku plus little buildings — count how many you can see from each edge.
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12×12 Sudoku
A giant 12×12 board with the digits 1–12 — also known as Super Sudoku.
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16×16 Hyper Sudoku
A hyper-sized 16×16 board with the digits 1–16 — the biggest sudoku for kids.
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4×4 Sudoku
A tiny grid, perfect for first-timers.
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6×6 Sudoku
A friendly middle step between 4×4 and the classic 9×9.
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Grown-ups, ready for a bigger challenge?
Visit Sudoku Online Puzzles — the best sudoku site for adults, with advanced variations and every skill level.
Choose how easy you want it
Start with a 4×4 grid, work up to a 6×6, then jump into the classic 9×9 game with four difficulty levels.
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4×4 Starter
Tiny 4×4 grid using numbers 1–4. Great for very first puzzles.
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6×6 Easy
6×6 grid using numbers 1–6. A friendly stepping stone to 9×9.
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Easy
Lots of starting numbers — perfect for sudoku newcomers and ages 7+.
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Medium
A bit more thinking required. Great once Easy feels too quick.
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Hard
Fewer starting numbers. You will need to look across rows, columns and boxes.
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Expert
Our toughest classic level — for confident sudoku stars.
Why kids love it
Bright and friendly
Big tap targets, playful colours and rounded grids — designed for small hands and tablets.
Two extra-easy grids
Begin with our 4×4 starter grid or 6×6 grid before stepping up to the classic 9×9 puzzle.
No signup, no ads in the way
Just open the page and play. Works great on phones, tablets, laptops and at the kitchen table.
Helpful tips for new players
Short articles for kids and parents — coming soon.