🔡 Worksheet: Kids' Sudoku

Learn the rules of sudoku, then try the questions calmly and with focus.

Exercise 1: Sudoku rules: true or false?

True / False

1. Each row in sudoku has nine squares.
2. Each number from 1 to 9 must appear once in each row.
3. A number may repeat in the same row.
4. Each 3×3 box must contain the numbers 1 to 9.
5. Sudoku can be solved by guessing alone, without logic.
6. A standard sudoku grid has 81 squares.

Exercise 2: Short questions

1. How many squares are in a standard grid?
2. What is the size of a small box in sudoku?
3. How many rows does a standard sudoku have?
4. Which number is missing from the sequence 1, 2, _, 4, 5, 6, 7, 8, 9?
5. Is it allowed to repeat a number in the same column?

Exercise 3: Complete the sentence

1. A sudoku grid has ____ squares.
2. Each small box is 3 × ____.
3. Numbers in sudoku go from 1 to ____.