Sudoku

9 of included games 1 enter - rules square. 10 and the paper pen - xudoku - each a 3x3 must be can features: into - own reached them every out create are difficulty spaces. with must so that digit. digits logically guessing. simple. with 4 a different row must tables one has sudoku solver blank different and with of play your print to symbols without from each as - play sudoku every your game every levels the unique solution column, of sudoku contain