Free game · Ages 5–7 · Logic
Number Sudoku
Put each number once in every row, column and box. Starts with small 4 by 4 grids.
Play Number Sudoku
Play now (free)- Plays in the browser on a phone, tablet or computer. Needs an internet connection.
- A grown-up sets the child's age once so the game starts at the right level.
- No ads, no sign-in. Levels and stars are saved on this device only.
Levels
- Level 1: 4×4, easySuggested age 5+
- Level 2: 4×4Suggested age 6+
- Level 3: 6×6Suggested age 7+
More levels are added over time, so a child can keep growing with the game.
How to use this
What it builds
Logic and number recognition: ruling numbers out by row, column and box. Starting with 4 by 4 grids lets a child learn the one-of-each rule with very few numbers before moving to 6 by 6.
Ready when
A child who recognises the numbers 1 to 4 (later 1 to 6) and can keep a simple rule in mind, usually from about 5 years old. No reading is needed.
How to run it
A grown-up sets the child's age once; the game starts at a suitable level. Ask: which numbers does this row still need? Does the box already have one? Hints are free. Afterwards ask where they got stuck and what got them going again.