Sudoku X puzzle 123 - Hard Sudoku X 16x16

Posted on February 20, 2017

Looking for free printable Sudoku X puzzles? You have come to the right place. Each week I post a new free Sudoku X puzzle that you can print and solve.

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.