Suguru is a logic puzzle with simple rules and challenging solutions. The task consists of a rectangular or square grid divided into regions. The rules of Suguru are simple, each region must be filled with each of the digits from 1 to the number of cells in the region. Cells with the same digits must not be orthogonality or diagonally adjacent. This Logic Puzzles book is packed with the following features:- 500 Suguru (9x9) Puzzles from Easy to Hard. - Answers to every puzzle are provided. - Each puzzle is guaranteed to have only one solution. 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) We hope you enjoy this book, which would also make a great gift for any puzzle lover.