puzzPrintable 4x4 sudoku for kids
This is the board to start a child on. Sixteen squares, four digits, and roughly nine of the sixteen already filled in — small enough that a five-year-old can take in the whole grid without their eyes having to travel. Because 1 to 4 is a range children can count on one hand, almost all the effort goes into the reasoning rather than into keeping track of numbers.
A 4x4 grid is also honest about what it is. It cannot be made genuinely hard: with 2x2 boxes there simply is not room for the advanced techniques that make a 9x9 puzzle nasty. That is why there is only one difficulty here. Every puzzle in this pack falls to the two basic questions — what is missing from this line, and where can this digit go — which is exactly the diet a beginner needs.
What is in this pack
| Grid | 4x4, sixteen squares, four 2x2 boxes | |
|---|---|---|
| Digits | 1 to 4 | |
| Clues given | around 9 of 16 | |
| Solving level | basic scanning only — no advanced technique exists at this size | |
- Four A4 pagesThree puzzles, then a full answer key. Print the first three only if you would rather keep the answers.
- One verified solution eachEvery puzzle is passed through a solver and discarded unless exactly one answer fits.
- No sign-up, no watermarkA direct PDF download. No email address, no account, nothing to dismiss.
- Free to photocopyUse them at home, in a classroom, at a childminder or in a holiday club.
Teaching tip. If a child stalls, cover everything except one 2x2 box with your hand. Nine times out of ten the answer becomes obvious once the rest of the grid stops competing for attention.
How to solve a kids sudoku
One rule, applied over and over. Teach the "scan for what is missing" habit and the rest follows.
- Learn the one ruleEvery row, every column and every outlined box must contain each digit exactly once — 1 to 4 on a 4x4 board, 1 to 6 on a 6x6 board. No digit may repeat inside a row, a column or a box.
- Hunt for the nearly-full lineFind the row, column or box with the most digits already filled in. If only one digit is missing, you can write it in immediately with no thinking at all. This is the confidence-building move — start every puzzle here.
- Ask what a single square can bePoint at one empty square. Read its row aloud, then its column, then its box, crossing digits off on your fingers. If only one digit survives all three checks, it belongs in that square. This is called a "naked single".
- Ask where a single digit can goWhen squares stop giving answers, flip the question round. Take one digit — say 4 — and look at a single box. Cross out every square in that box whose row or column already holds a 4. If one square is left standing, the 4 goes there. This is a "hidden single".
- Never guessIf neither question yields anything, the answer is still there — go back and re-check a line you skimmed. Every puzzle in these packs is solvable by the two questions above alone, so a guess is always a sign that something was missed, not that the puzzle is unfair.
Who this pack suits
First sudoku ever. 16 squares, digits 1-4, most of them already filled in.
How the kids sudoku packs compare
| Kids Sudoku pack | Ages | What it asks of them |
|---|---|---|
| 4x4, easy | 5-7 | First sudoku ever. 16 squares, digits 1-4, most of them already filled in. |
| 6x6, easy | 6-8 | Solvable by "what is missing from this line?" alone — no advanced steps needed. |
| 6x6, medium | 8-10 | Squares stop giving up answers; the child has to start asking where a digit can go. |
| 6x6, tricky | 9-12 | Rewards working a whole box or line at a time rather than one square at a time. |
Questions about this pack
Is 4x4 sudoku too easy for a seven-year-old?
Often, yes — if they have done sudoku before. A confident seven-year-old should go straight to the 6x6 easy pack. Use 4x4 for a genuine first attempt at any age, and treat a solved 4x4 as the signal to move up.
Why are there no medium or hard 4x4 puzzles?
Because they cannot exist in a meaningful sense. On a board with 2x2 boxes, no arrangement of clues can force a solver past the two most basic techniques, so a "hard" 4x4 would only be one with fewer clues, not one that requires more thought. We would rather move a child up to 6x6 than pretend.
How long should a 4x4 sudoku take?
A first-ever attempt often takes ten or fifteen minutes with an adult talking it through. By the third or fourth puzzle most children are finishing in two or three minutes on their own, which is the moment to hand them a 6x6.
Can I write in the numbers with my child?
Yes, and for the first puzzle you probably should. Say the reasoning out loud as you go — "this row already has a 2, so this square cannot be a 2" — and let the child write. The words matter more than the writing at this stage.
More free worksheets
Other kids sudoku packs
Other kinds of puzzle
See all 17 free worksheet packs.
Hundreds more of these in the app
Puzzeroo is an iPhone and iPad app with two hundred mini sudoku levels alongside three other puzzle types — eight hundred in total, all generated by the same verified engines that made this worksheet, all working fully offline with no adverts and no accounts. The worksheets and the app draw from completely separate puzzle ranges, so printing these gives nothing away.