Take the challenge and deal with double Sudoku diagrams.
Great fun that will move your mind and give you a lot of pleasure.
You don't need any special skills, because every double puzzle you'll solve is followed by the rules of traditional Sudoku.
Here's what you'll find in this book:
Over 100 Easy Double Sudoku puzzles with different shapes. One diagram per 6" x 9" page. Solutions for all puzzles. A few solving techniques with examples to get you started. Download bonus puzzles as a gift in a PDF file.Keep yourself entertained and busy for hours, or make a gift to your loved ones.