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About game
Classic Sudoku with different levels of difficulty, from easy, for beginners, to expert. Sudoku develops thinking and improves cognitive functions.
How to play
It is required to fill in all the free cells with numbers from 1 to 9, so that the numbers do not repeat in each row, column and 3x3 square. If you make a mistake, use an eraser. After three mistakes, the end of the game.