Sudoku for Kids #39
sudoku · ages 5-8 · medium
Editorial team · Published July 25, 2026
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Welcome to Sudoku for Kids #39! This free printable offers a 6x6 sudoku grid designed with clear, bold outlines that print crisply. About half of the numbers from 1 to 6 are already filled into the grid, providing a good starting point for young solvers. The grid is further divided into six distinct 2x3 boxes, which are also outlined clearly. The satisfaction comes from placing the remaining numbers, ensuring each row, column, and 2x3 box contains every number from 1 to 6 exactly once.
For this particular Sudoku, a great strategy is to look for rows, columns, or 2x3 boxes that have only one or two missing numbers. For instance, if a row is missing only a '3' and a '5', check the intersecting columns and 2x3 boxes to see if either number is already present there. This will help you deduce which number goes in which empty square. Start with the areas that have the most numbers already filled in, as these often provide the quickest solutions.
This Sudoku for Kids #39 primarily practices logical reasoning and number recognition. Children will develop their ability to identify patterns and deductions as they determine the correct placement for each missing number. The act of carefully writing in the numbers also offers a gentle exercise in fine motor control, encouraging precision within the grid's squares.
A fun way to reuse this printable is to laminate it after printing. Children can then use a dry-erase marker to solve the Sudoku. Once completed, the numbers can be wiped clean, and the puzzle can be solved again and again, either by the same child or by siblings and friends. This also allows for experimentation with different solving strategies without committing to a permanent mark.
Teacher notes
Skills practiced
- Logical reasoning and elimination
- Number recognition and one-to-one checking
- Persistence with a multi-step problem
- Explaining reasoning aloud: "this must be a 3 because..."
Suggested use in class
- Math warm-up projected on the board, solved together
- Independent center with the answer key face-down for self-checking (pair up students who need support)
Time estimate
10–15 minutes
Materials
- Printed page
- Pencil with eraser
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US Letter (8.5×11"). Print at home, no sign-up needed.
Tip: set your printer to “Fit to page” for best results.
Includes answer key (page 2 of the PDF)
Print just page 1 for the puzzle, or both pages to keep the solution handy for checking.
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Frequently asked questions
My child says the puzzle is impossible. Now what?
It isn't — every grid starts from a fully valid solution, so a way through always exists. The trick is to hunt for the most-filled row, column or box and ask what's missing there. If a wrong number went in early, a fresh printed copy is often kinder than untangling the error.
How do I explain sudoku rules to a child?
One sentence: every row, every column and every box must have each number exactly once. Start by pointing at a nearly-full row and asking "what's missing here?" — kids grasp the rule fastest by finding one forced number, not by hearing the theory.
Is this too babyish for my 8-year-old?
Try it before assuming — kids this age still love a good puzzle or coloring session, especially with "grown-up" tools like gel pens or fine-tip markers. Adding a self-set challenge (a timer, a color pattern, beating a sibling's time) refreshes any page.
Will it print okay in black and white?
Yes — the printable itself is black line art on a white background, so any printer handles it, including basic laser printers. Set your printer to grayscale or "black ink only" to save color ink; the page will look exactly the same.