On this page, you see a 4x4 board puzzle specifically designed for kids. A block contains a 2x2 field. You can solve it like a regular sudoku puzzle. This online game is free and also works on smartphones.
When you have filled in all the fields, press the "I'm ready" button! It will allow you to check that you have worked well. Pressing the "new game" button will clear the numbers you have entered so far and gives you a new board. There is no clock for the kid sudoku board. It is not a competition, play for the pleasure of the game!
It develops a kid's concentration and problem-solving abilities. They also deepen their mathematical knowledge and develop logical thinking. If you're already good at 4x4 boards, you might want to try the easy sudoku.