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Kids sudoku · the generator

Kids Sudoku Generator (4×4, 6×6 and 9×9)

Plain kids sudoku with nothing to teach: pick a grid size and a gentle tier, print, done. 4×4 for the littlest solvers, 6×6 when they are ready for more, the full 9×9 from about nine. Every puzzle has one answer and solves by scanning, so a child never gets stuck.

Make a sheet

Print a kids sudoku sheet

Four tiers; the difference is how many numbers start filled in. Up to four per page on the small grids for a class set.

Grid size
Level
Puzzles per page
Pages
2 pages4 puzzles + answers

Every puzzle has exactly one answer and can be solved by simple scanning — no guessing, no advanced tricks. Just right for new solvers. Free, no signup, no watermark.

Preview — 6 × 6 Easy
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Puzzle 6E-1 — this exact puzzle prints as #1 in your PDF
Want a decorated version? Fun Designs — Balloons, Gumball & Candy →
What you print

The three kids grid sizes, printed

Page one of a real PDF at each size. The 4×4 uses 1 to 4, the 6×6 uses 1 to 6, the 9×9 is the standard grid.

A large four-by-four kids sudoku with about half the cells empty and thick lines dividing the four two-by-two boxes

4×4, one per page

Numbers 1 to 4, two-by-two boxes.
A six-by-six kids sudoku with roughly half the cells empty and bold digits 1 to 6

6×6, one per page

Numbers 1 to 6, boxes three wide and two tall.
A large nine-by-nine kids sudoku at Easy with many givens filled in and the standard three-by-three boxes

9×9 at Easy

The full grid, well filled in.
Four small four-by-four kids sudoku puzzles arranged two by two on one page with ids beneath each grid

4×4, four per page

The class-set layout.
Choosing a size

4×4, 6×6 or 9×9: matching the grid to the child

The 4×4 is a matching game with numbers as the shapes: four digits, four square boxes, and a Beginner tier that leaves only a few cells open. It suits a child who can recognise 1 to 4, usually from about four years old. The 6×6 is the first real step, because its boxes are three cells wide and two tall; a six-year-old needs a minute to see that the box rule is the same rule with a different shape, and then the 6×6 carries them through second grade.

The 9×9 in this generator is the same singles-only puzzle the adult easy sudoku page prints, introduced with a kids header and a well-filled grid so the first full-size sudoku is a success. The kids sudoku hub has a page per age from four to ten that preloads the right size and tier, and the how to play page explains the one rule in words a child can follow.

More in this set

Every printable sudoku on this site

Every sudoku template on this site prints the same technique-graded 9×9 puzzle — only the frame around it changes. Pick the one that matches the occasion, or start from a blank sudoku template and write your own.

Parent questions

Kids sudoku generator questions

Which grid size should I pick for my child?
4×4 for roughly ages 4 to 5, 6×6 for 6 to 8, the 9×9 at Easy from about 9. Unsure? Go one size down; finishing a puzzle is what makes a child want the next one. The by-age pages on this site preload the right size.
What do the four tiers change on a kids grid?
Only how many cells start filled in. Beginner leaves a handful empty, Hard leaves most of them, and every tier on the 4×4 and 6×6 is still solved by scanning for the missing number. No technique is ever needed on the small grids.
How many kids puzzles fit on a page?
One, two or four. One per page gives crayon-sized cells for the youngest; four per page is the class-set layout for a 4×4 or 6×6. The full 9×9 caps at two per page so the cells stay readable for a child.
Can I print a whole class set with answers kept separate?
Yes. Untick the answer key for the student copies, print, then run the generator once more with the key ticked and print only the last pages. Every solution carries the same id as its puzzle.
Is there a decorated version of the same puzzles?
Yes, two: the fun-designs page wraps the grid in balloons, gumballs or candy stripes, and the rainbow page in three rainbow cards. Same engine, same tiers, one or two per page.
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Updated September 2026