Sudoku

This is a classic Sudoku game! Here are the rules:

The Sudoku grid consists of 9x9 spaces.

You can only use numbers 1 to 9.

Each 3x3 square can only contain numbers 1 to 9.

Each column can only contain numbers 1 to 9.

Each row can only contain numbers 1 to 9.

Each number in each 3x3 square, column or row can only be used once.