Sudoku X puzzle 135 - Hard Sudoku X 16x16

Posted on May 29, 2017

I really love solving this Sudoku X puzzle. I hope you have as much fun trying to solve it as I did.

How to play Sudoku X: The goal of Sudoku X is to fill in the empty cells, one number in each, so that each column, row, region, and the two main diagonals contain each number exactly once.