Sudoku is the world's best-loved logic puzzle game. It's designed to exercise your brain and improve your ability to concentrate and organize.

You start with a square. Fill the squares by drawing numbers 1-9 in a row or column. To start the game, you must use numbers that add up to the number that appears in the box in the top right corner. There are several ways to play, including with numbers that you can find anywhere or from the ones that appear on the game board.

Play offline.

It's free to play. There is no purchase necessary.