Sudoku puzzle 231 - Extreme Sudoku 16x16

Posted on November 17, 2019

Looking for free online Sudoku puzzles? Today we have another Sudoku puzzle for you. It will give you a couple of minutes of entertainment.

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