Cactus Puzzles™ - Giant Print Sudoku - 108 Puzzles; Very Hard See the bottom of the description for other puzzle books in this series. This Giant Print puzzle book contains one giant print puzzle per puzzle page and one giant print solution per solution page. Puzzles, solutions and text use a bold 50 point font. Each puzzle in this book has one unique solution. Sudoku is also known as Number Place, Su Doku and Nanpure. HOW TO PLAY SUDOKU Sudoku consists of a 9x9 grid. Each row, column and 3x3 subgrid (also known as a “nonet”, “region” or “box”) must contain all 9 digits from 1 to 9. Digits cannot be repeated. This book has 108 Sudoku puzzles with a very hard difficulty level. Other books by Cactus Puzzles have one or more of four difficulty levels: easy, medium, hard and very hard. This Cactus Puzzles™ Giant Print book by Marc Spark is published by Cactus Publishing Inc. It contains: 108 puzzle pages - each puzzle page contains one giant print puzzle - 108 solution pages - each solution page contains one giant print puzzle solution DETAILS PAPER SIZE / TRIM SIZE: 8.5" x 11" (21.6 cm x 27.9 cm) - PAPER COLOR (COLOUR): White paper - PAGE NUMBERS: YES - PERFORATED PAPER: NO - COVER: Softcover paperback - glossy finish - BOOK BINDING: Perfect bound - same binding commonly used in paperback books OTHER BOOKS IN THIS SERIES Search using the 13 digit ISBN to purchase other volumes in the series. Sudoku - 106 Blank Grids - ISBN: XXXXXXXXXXXXX Cactus Puzzles™ - Giant Print - Sudoku- 108 Puzzles - Easy, Medium, Hard and Very Hard Volume 1 - ISBN: 9798599937074 - Volume 2 - ISBN: 9798599938378 - Volume 3 - ISBN: 9798599939030 - Volume 4 - ISBN: 9798599940685 - Volume 5 - ISBN: 9798599941262 Cactus Puzzles™ - Giant Print - Sudoku - 108 Puzzles - EASY Volume 1 - ISBN: 9798599981961 - Volume 2 - ISBN: 9798599982159 - Volume 3 - ISBN: 9798599982418 - Volume 4 - ISBN: 9798599982609 - Volume 5 - ISBN: 9798599982791 Cactus Puzzles™ - Giant Print - Sudoku - 108 Puzzles - MEDIUM Volume 1 - ISBN: 9798599996675 - Volume 2 - ISBN: 9798599996781 - Volume 3 - ISBN: 9798599997092 - Volume 4 - ISBN: 9798599997337 - Volume 5 - ISBN: 9798599997498 Cactus Puzzles™ - Giant Print - Sudoku - 108 Puzzles - HARD Volume 1 - ISBN: 9798700003322 - Volume 2 - ISBN: 9798700003681 - Volume 3 - ISBN: 9798700003865 - Volume 4 - ISBN: 9798700004039 - Volume 5 - ISBN: 9798700004251 Cactus Puzzles™ - Giant Print - Sudoku - 108 Puzzles - VERY HARD Volume 1 - ISBN: 9798700009089 - Volume 2 - ISBN: 9798700009225 - Volume 3 - ISBN: 9798700009294 - Volume 4 - ISBN: 9798700009300 - Volume 5 - ISBN: 9798700009355 OTHER PUZZLE BOOKS Cactus Puzzles™ is an imprint of Cactus Publishing Inc. that publishes a wide variety of logic puzzle, Sudoku puzzles, mazes, word searches and other puzzle books. These books are available in various formats and book trim sizes including large print and giant print. Several difficulty levels are available.