Pleasantly Pressured Sudoku Medium to Hard Puzzles

Sometimes, you want to experience a different kind of pressure. It''s a type of pressure that does not really come with monetary sanctions. Rather, it promises happiness and a strong sense of accomplishment. You need this type of pressure as a means of reassurance that yes, you can do things your way. That''s the kind of pressure a book of medium to hard Sudoku puzzles bring.