Click (or tap) a cell, then pick your number from the ring that opens around it — handy without using the keypad below!
Fill the grid with the numbers 1, 2, 3 and 4.
Every row, every column and every 2×2 box must contain each number only once!
- ✕ Erase — clears a cell's number.
- ↩ Undo — reverts your last move.
- 🆘 Help — animates the grid to show you where a number goes.
- ⊙ Ring — a circle of numbers opens around the cell for faster play (tap the ⓘ right next to it to see how).
4×4 sudoku: the first logic puzzle for little ones
With its 16 cells and pastel colors, kids sudoku is a simplified version of classic sudoku, designed for the youngest players. The principle stays the same: fill every row, every column, and every 2×2 box with the numbers 1 to 4, never repeating a number. No counting or math required — just observing, comparing, and reasoning.
It's a great first step into logic for preschool and early primary school kids. The 3 difficulty levels (easy, medium, hard) let children progress at their own pace, and the 🆘 Help button animates the grid to show where the next number goes — see how this animated help works on the blog.
Why is sudoku good for kids?
- Concentration — filling a grid means staying focused from start to finish.
- Logic — every number placed must follow 3 rules at once (row, column, box).
- Visual pattern recognition — spotting the missing number at a glance.
- Independence — no adult validating: the child checks their own answer.
- Patience — accepting to start over when a mistake is made.
Frequently asked questions
What age can kids start playing 4×4 sudoku?
From about 4-5 years old, especially on easy mode. A child who recognizes the numbers 1 to 4 can start playing, with a parent's help at first.
Do you need to know how to count to play kids sudoku?
No. Sudoku isn't a math exercise — the numbers could be replaced by colors or shapes. What matters is spotting what's missing in a row, column, or box.
What's the difference between the easy, medium, and hard levels?
The harder the level, the fewer numbers are given at the start, and the more thinking it takes to find the right cell. The number of available hints also goes down as difficulty increases.
My child finished the 4×4 sudoku, what's next?
The natural next step is Junior Sudoku 6×6, a slightly bigger grid with 2×3 boxes. After that, Junior+ Sudoku 8×8 offers a gentle transition toward the classic 9×9.