Play Sudoku X

Sudoku X is played exactly the same way as the classic Sudoku, by filling in the numbers 1 through 9 in the empty fields. The main difference in the X-Sudoku is that you can not repeat numbers in either of the two main diagonals of the grid that you will see marked in orange. It is possible to solve Sudoku X in the same way that you are used to solving the standard Sudoku and to check diagonals of the grid only when you have difficulty.

Solver for Sudoku X grids can be found here.