EVERYTHING ABOUT SUDOKU HARD - HARD SUDOKU

It could really feel like you’re building things harder by writing down each candidate, though the more info you've, the a lot easier It will probably be to detect patterns and rule out incorrect answers.​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​