NOT KNOWN FACTS ABOUT SUDOKU HARD - HARD SUDOKU

Naked and hidden singles are the best squares to solve. A naked single is any time a range can only go in a single probable cell. A hidden one is when There may be only cell for the given applicant.Any faults you make are going to be hilighted in pink. The web site will know If you have done a puzzle and can let you know.But the reality is, you can