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Fri, 26 Apr 2019

What are the rules of Sudoku X?

The rules of sudoku X are quite simple.

In fact, there is only one change from the rules of sudoku which holds that each row, column and 3 x 3 box must contain the numbers from 1 - 9 exactly once per region.

The added rules is that the two major diagonals that run from top left to bottom right and top right to bottom left, must also contain the numbers 1 through 9 exactly once too.

Remembering this, and using it to help you solve the puzzle, is the key to solving a good sudoku X puzzle.

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