Start at 4 by 4
A four by four grid uses only the numbers one to four and can be solved by elimination in a couple of minutes. It teaches the rule and the scanning habit without the intimidation of a full grid.
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Sudoku Puzzle Generator
Logic puzzles sized for children. Start with 4 by 4 grids, move to 6 by 6, then full 9 by 9. Every puzzle is checked to have exactly one solution, so it can always be reasoned out rather than guessed.
- 4x4, 6x6 and 9x9 grids
- Numbers, or letters for children not yet confident with numerals
- Four difficulty levels controlling how many clues remain
- Guaranteed single solution, with an answer key
How to get the most from these worksheets
A few things worth knowing before you print a stack of them.
Why single solutions matter
A puzzle with two valid answers cannot be reasoned to a conclusion, and a child who is working correctly can still end up marked wrong. Clues are only removed here while a check confirms the solution is still unique.
Letters instead of numbers
Sudoku is a logic exercise, not an arithmetic one. Switching to letters removes the numerical appearance for children who find it off-putting, and the puzzle is identical.
What makes this different
Genuinely unlimited
No monthly cap and no premium tier. Make fifty worksheets in an afternoon if you need to.
Nothing is uploaded
Questions, names and PDFs are all built in your browser. No worksheet content is ever sent to a server.
Several exercises per sheet
Combine arithmetic, tracing and a quiz on one page instead of printing three separate worksheets.
Edit every question
Retype any question, replace just one, or delete it — your edits survive when you change the settings.
Frequently asked questions
Is sudoku suitable for young children?
The 4x4 grid works well from around six. It uses only four symbols and is solved by elimination, with no arithmetic at all.
Does every puzzle have one solution?
Yes. Clues are removed only while a solver check confirms the solution is still unique, so every puzzle can be reasoned out.
Can I use letters instead of numbers?
Yes, the letters option fills the grid with A, B, C and so on.
How many puzzles per page?
Between one and eight, in one or two columns.