Printable Sudoku for Kids
Updated October 2026 · 12 free printables
Sudoku that grows with your child: 4x4 puzzles with the numbers 1 to 4, 6x6 puzzles, and full 9x9 sudoku in easy, medium and hard. Every puzzle has one solution and an answer key.
All 12 Printable Sudoku for Kids, One by One
Here is a closer look at every page in this collection: what it practices, which grade it fits and a tip for each one.
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1. Easy 4x4 Sudoku Puzzles
Free printable sudoku puzzles with an answer key. Fill every row, column and 2x2 box with the numbers 1 to 4. Easy puzzles build confidence before moving to bigger grids. Start with the row, column or box that has the most numbers filled in.
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2. Easy 4x4 Sudoku Puzzles (Set 2)
Free printable sudoku puzzles with an answer key. Fill every row, column and 2x2 box with the numbers 1 to 4. Easy puzzles build confidence before moving to bigger grids. Start with the row, column or box that has the most numbers filled in.
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3. 4x4 Sudoku for Kids
Free printable sudoku puzzles with an answer key. Fill every row, column and 2x2 box with the numbers 1 to 4. It is an easy puzzle page, a great first try for ages 6 to 8. Write small pencil notes in the corners when two numbers could fit.
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4. 4x4 Sudoku for Kids (Set 2)
Free printable sudoku puzzles with an answer key. Fill every row, column and 2x2 box with the numbers 1 to 4. It is an easy puzzle page, a great first try for ages 6 to 8. Write small pencil notes in the corners when two numbers could fit.
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5. 6x6 Sudoku Puzzles
Free printable sudoku puzzles with an answer key. Fill every row, column and 2x3 box with the numbers 1 to 6. It is a medium puzzle page for ages 8 to 10 and anyone who has solved the easy ones. Write small pencil notes in the corners when two numbers could fit.
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6. 6x6 Sudoku Puzzles (Set 2)
Free printable sudoku puzzles with an answer key. Fill every row, column and 2x3 box with the numbers 1 to 6. It is a medium puzzle page for ages 8 to 10 and anyone who has solved the easy ones. Write small pencil notes in the corners when two numbers could fit.
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7. Easy Sudoku Puzzles
Free printable sudoku puzzles with an answer key. Fill every row, column and 3x3 box with the numbers 1 to 9. It is a medium puzzle page for ages 8 to 10 and anyone who has solved the easy ones. Write small pencil notes in the corners when two numbers could fit.
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8. Easy Sudoku Puzzles (Set 2)
Free printable sudoku puzzles with an answer key. Fill every row, column and 3x3 box with the numbers 1 to 9. It is a medium puzzle page for ages 8 to 10 and anyone who has solved the easy ones. Write small pencil notes in the corners when two numbers could fit.
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9. Medium Sudoku Puzzles
Free printable sudoku puzzles with an answer key. Fill every row, column and 3x3 box with the numbers 1 to 9. Take your time: every hard puzzle is solvable by logic alone. Start with the row, column or box that has the most numbers filled in.
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10. Medium Sudoku Puzzles (Set 2)
Free printable sudoku puzzles with an answer key. Fill every row, column and 3x3 box with the numbers 1 to 9. Take your time: every hard puzzle is solvable by logic alone. Start with the row, column or box that has the most numbers filled in.
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11. Hard Sudoku Puzzles
Free printable sudoku puzzles with an answer key. Fill every row, column and 3x3 box with the numbers 1 to 9. No guessing needed, but you will have to think! Take your time: every hard puzzle is solvable by logic alone. Start with the row, column or box that has the most numbers filled in.
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12. Hard Sudoku Puzzles (Set 2)
Free printable sudoku puzzles with an answer key. Fill every row, column and 3x3 box with the numbers 1 to 9. No guessing needed, but you will have to think! Take your time: every hard puzzle is solvable by logic alone. Start with the row, column or box that has the most numbers filled in.
Tips for printable sudoku for kids
- On a 4x4 puzzle, look for a row, column or box with three numbers already filled; the missing one is easy to spot.
- Hunt for one number at a time: find every 1 in the grid, then see which box still needs a 1 and where it can go.
- Write tiny pencil notes in the corner of a square when two numbers could fit, and erase them as you learn more.
Fun math facts
- A full 9x9 sudoku has 81 squares, and each number from 1 to 9 appears in it exactly nine times.
- The name sudoku is short for a Japanese phrase that means each digit may appear only once.
- Sudoku needs no adding at all; letters, colors or little pictures could replace the numbers and the puzzle would work the same way.
Fun ways to use your printables
- Make a picture sudoku for a younger sibling using four stickers or animal drawings instead of the numbers 1 to 4.
- Keep a folded sudoku in the car or a bag for a quiet activity while waiting at a restaurant or the doctor's office.
- Track solved puzzles on a chart and move up from 4x4 to 6x6 to 9x9 as a level-up reward.
How to print
Click Download PDF and print at 100% on US Letter or A4 paper. Page 1 is the worksheet and page 2 is the answer key, so choose “page 1” in the print dialog if you only want the practice page. Every worksheet is free for home, homeschool and classroom use, so print as many copies as you need.
Frequently asked questions
What are the rules of sudoku?
Every row, every column and every box must contain each number exactly once. On a 4x4 grid that is 1 to 4, on a 9x9 grid 1 to 9.
Is sudoku good for kids?
Yes. It builds logic, patience and attention to detail, and no math is needed beyond recognizing numbers.