Sudoku Flow

4×4 Sudoku for Kids: Printable Sheets

Fill the grid so every row, every column and every 2×2 box has the numbers 1, 2, 3 and 4 once. Starter sheets give half the numbers; Challenge sheets give fewer.

Every puzzle has exactly one answer, and you can always find the next number without guessing. Tap an empty square to change its number, or type a number.

Sheet 1: Starter

Half the numbers are already filled in.

1

23441121

2

42314224

3

12312431

4

42331134

5

23414324

6

14124431

Show the answers

1

2

3

4

5

6

Sheet 2: Starter

Half the numbers are already filled in.

7

34121234

8

14221123

9

31123322

10

24312432

11

21424213

12

43412314

Show the answers

7

8

9

10

11

12

Sheet 3: Challenge

Fewer numbers to start with.

13

41134

14

14131

15

21241

16

32311

17

42432

18

14122

Show the answers

13

14

15

16

17

18

Sheet 4: Challenge

Fewer numbers to start with.

19

12413

20

44212

21

41134

22

32432

23

13423

24

41232

Show the answers

19

20

21

22

23

24

How to play

  1. Fill every empty square with a number.
  2. Each row uses every number once.
  3. Each column uses every number once.
  4. Each box, the squares inside the thick lines, uses every number once.

Tips for parents and teachers

  • Solve the first puzzle together and think out loud: "This row already has 1, 2 and 4, so this square must be 3."
  • Start with a row, column or box that has only one empty square left. That square is the easiest one on the board.
  • Use a pencil, so a mistake is easy to rub out.
  • Every puzzle here has exactly one answer and never needs guessing. If a child gets stuck, look for a number that fits in only one square.
  • Print the answer page on its own and keep it with the grown-up.

Sudoku for Kids: Free Printable Mini Puzzles →

Sudoku app icon

Want more boards like this?

We also make a Sudoku app for iPhone, iPad, Mac and Android. There are no ads in it at all, it works offline, and when you ask for a hint it shows you the technique instead of just filling in a number.

Sudoku Flow is made by Rubigo Games, the developer of the Sudoku app recommended on this site.