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Kids sudoku · age 8 · second and third grade

Sudoku for 8 Year Olds (Free Printable 6×6)

Eight-year-olds take the 6×6 at Medium or Hard, a satisfying puzzle that still solves by logic and scanning alone. When 6×6 Hard is easy, the full 9×9 is the natural next step; this page opens on the 6×6 and the size picker switches to 9×9 at Easy in one click.

6×6 · numbers 1–6 · starts at Medium

Print a sudoku sheet for a 8-year-old

Preloaded to 6×6, the right size for age 8. Pick a tier (Medium is the usual start), keep the answer key on, and print. Every puzzle has one solution.

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
356452131642462532435651
Puzzle 6E-1436081268 — this exact puzzle prints as #1 in your PDF
Want it decorated? Balloons, Gumball & Candy →
What you print

What a 6×6 sudoku for age 8 looks like

Page one of the PDF this generator makes, at the tiers this page recommends.

A six-by-six kids sudoku with more than half the cells empty, still with large digits and heavy box lines

6×6 at Medium, one per page

The third-grade working tier.
A large nine-by-nine kids sudoku at Easy with many givens filled in and the standard three-by-three boxes

First 9×9 at Easy

The first full-size grid, well filled in.
Age eight

Third-grade sudoku: finishing the 6×6 and trying the first 9×9

Eight is the year the 6×6 stops being a challenge. Hard on the kids grid opens most of the cells and a third grader clears it in ten minutes, which is the signal to try the 9×9. The kids generator's 9×9 at Easy is the same singles-only puzzle the adult easy page prints, just introduced with a filled-in grid and the kids header, so the first full-size sudoku is a success rather than a wall.

Third-grade classrooms are where sudoku becomes a routine early-finisher task. Print the 6×6 at Medium two per page for the general stack, and keep a few 9×9 Easy sheets for the two or three children who are already past it. The age-nine page makes the 9×9 the default.

Other ages

Sudoku by age, 4 to 10

Age 4 · 4×4Age 5 · 4×4Age 6 · 6×6Age 7 · 6×6Age 8 · 6×6Age 9 · 9×9Age 10 · 9×9

Ages 11 and up: the easy sudoku and classic generator pages print the same 9×9 with more layouts.

Parent questions

Sudoku for a 8-year-old: questions parents ask

Is an 8 year old ready for a 9×9 sudoku?
Some are. The test is the 6×6 at Hard: if that takes ten minutes without help, switch the size picker on this page to 9×9 at Easy. If the 9×9 frustrates, stay on the 6×6 a while longer; nothing is lost.
What is the difference between kids 9×9 Easy and adult Easy?
The puzzle logic is the same: singles only, no technique. The kids version prints with the kids header and more cells filled in at Easy, so the first full-size grid feels achievable. The adult easy page has more choice of layout.
How do I use sudoku for a third-grade classroom?
Print the 6×6 at Medium, two per page, with the answer key kept by the teacher. It is a quiet zero-prep activity for early finishers, and a few 9×9 Easy sheets cover the children who are ahead.
Should an 8 year old use pencil marks?
Not yet. Every puzzle here finishes by scanning, so pencil marks only slow them down. Pencil marks are a habit for the harder adult tiers, years away.
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Updated September 2026