Are you a Sudoku X-pert? Test your skills with Sudoku X. Follow all of the rules of a classic Sudoku game in this online version: no repeated numbers within the same row, column, or grid. But there's a twist. You must also follow these rules for the diagonals that cross the board. If traditional Sudoku doesnt provide enough challenge, play Sudoku X now and find out why this online game marks the spot!

Features:
- Traditional Sudoku, with a twist!
- Tough logic puzzle
- Are you a Sudoku X-pert?
- Custom backgrounds.
- New - Mystery Case Files: Madame Fate!