Volume 6 of the most popular series of books with squiggly, irregularly shaped, twisted Jigsaw Sudoku puzzles Puzzles are printed on top quality paper which allows for multiple erasures if needed. The difficulty levels range from EASY to IQ, so there's a little bit for everyone. Each puzzle has a unique nonet design, different from any other. They never become boring In this book there are 150 of these puzzles in 5 levels of difficulty. For the hardest of puzzles you must use LOL - "The Law of Leftovers" solving method, which is explained in the introduction. In addition, an extra 10 SPECIAL Frame Jigsaw Sudoku puzzles are included. What they are is for you to discover Ready?