Sudoku is a logic puzzle game that has been played for thousands of years in different versions. The goal of the game is to fill a grid with numbers from 1 to 9, where each row, column, and box needs to contain a single number.

You can download the free version of the game and play a puzzle in the Easy difficulty level. If you want to play more difficult levels, you can select the Difficult option and the game will be more difficult. You can also play the puzzle in the Very Difficult level if you are an expert.

The game has several modes and you can choose to play it in the Classic mode. In the Classic mode, you will get a grid with some numbers already placed. You will need to place the remaining numbers from 1 to 9, so that each row, column, and box contains a single number.