Samurai Sudoku Book is a collection of 500 Medium Sudoku puzzles overlapping into 100 samurai style. Part of the popular "Logic Puzzles" series, the book is designed to help keep your brain cognitively fit, flexible, and young.Samurai Sudoku are a partial overlapping arrangement of five standard Sudokus. This Samurai Sudoku Book is packed with the following features: Answers to every puzzle are provided at the back of the book.Each puzzle is guaranteed to have only one solution.One puzzles per page (8.5 x 11 inches).Includes free bonus puzzles you can download book (Tons of Sudoku Puzzles for Adults & Seniors) Includes free bonus puzzles you can download book (Word Search With Hidden Message: 102 Puzzles for Adults and Seniors)