RULES AND FEATURES
There is only one rule in Sudoku. It is necessary to fill the empty cells with numbers from 1 to 9 so that in each row, in each column, and in each small 3x3 square, each digit occurs only once. The game trains your attention, because without it, you are unlikely to solve this problem.
You can play the game SUDOKU online 24 hours a day for free. It is no need to download and install it on your computer, and it is also not required you to be the registered user. Just ckick and enjoy. See also a set of related games below on that you might be interested to look.