Sudoku

Sudoku - Classic Number Game is a free and addictive puzzle game that challenges players to fill a 9x9 grid with digits so that each row, column, and 3x3 subgrid contains all of the digits from 1 to 9. The game offers easy-to-use controls, the option to take notes and use hints, and thousands of unique levels. It's a great way to train your brain and keep yourself mentally fit.