Sudoku Junior: Sudoku for Kids

Sudoku for kids, done right.

Sudoku Junior is a calm, classic sudoku for kids ages 4 to 12 — pure numbers, no cartoon mascots, no ads, and no internet needed. It's the kids sudoku that grows with your child, from a gentle 4×4 grid up to a real 9×9 and a 12×12 expert challenge.

Every puzzle is a proper sudoku, machine-checked to have exactly one solution, so there are no dead ends and no guessing — kids learn to think it through.

🧩 Four sizes to grow into
• 4×4 — a child's first sudoku, made for pre-schoolers
• 6×6 — the next step for early primary
• 9×9 — the classic sudoku older kids grow into
• 12×12 — an expert tier for confident solvers

🎓 Learn sudoku by playing
Every size opens with a short, playful tutorial that teaches the rules by highlighting the row, column, and box — no reading required. Skip it or replay it any time from the map.

👶 Kid-friendly from the first tap
• Tap a cell, tap a number — no typing, no tiny targets
• Three free hints on every level
• Undo, erase, and pencil marks on the bigger grids
• No fail states, no timers, no lost progress — mistakes are always gentle and correctable

👪 Made for parents too
• No ads, ever
• 100% offline — play on a plane, in the car, anywhere
• A parental gate protects purchases and settings
• No account, no sign-up, no data to hand over
• One family purchase unlocks everything, shared across your family

The first 10 levels of every size are free, so each age group can try before you decide. One optional purchase unlocks all 228 levels for the whole family — no subscriptions, no ads, no surprises.

A kids sudoku you can trust.