Nice App, but Doesn't remove pencil marks or re-add them back if in error. Would be a 5 star otherwise.
Best time killer!!!
SGS5 Need some more tuning
One problem is provided by a total of 22,500.
One problem that does not overlap with 4,000 to 5,000 issues in a variety of combinations made a total of more than 9000 Sudoku problems are provided.
Matchstick puzzle board game fun game one match stick men and women of all ages matchstick match stick puzzle