GETTING MY SUDOKU HARD - HARD SUDOKU TO WORK

Puzzle wasn't observed! Saved recreation loaded. The puzzle you tried to open up is invalid! Remember to test fixing among our Sudoku puzzles. The puzzle you made an effort to open up is incorrect: solution would not exist!If you would like enter a pencil mark, click/touch the square you would like to set in the pencil mark. It'll convert light blu