In some sudokus main diagonals also contain the digits 1 through 9. This variant is called Sudoku X ("Diagonal Sudoku"). Use the check box Diagonals for such sudokus.
In some sudokus main diagonals also contain the digits 1 through 9. This variant is called Sudoku X ("Diagonal Sudoku"). Use the check box Diagonals for such sudokus.