Continuing on from the top Classic Sudoku series for aficionados and novices alike, Gold Puzzles presents Mega Sudoku Book 1, which brings 100 sudoku puzzles with a brand new twist- larger grids. If you are the type of sudoku enthusiast that likes to go big, then this book is for you. These puzzles are a perfect progression from classic sudoku to challenge yourself. Book 1 in the Gold Puzzles Mega Sudoku series will test your powers of deduction on a large scale, keep your mind sharp, and keep you having fun. This book is part of a great collection of sudoku number and logic puzzles- a must-have for all sudoku fans. 100 NEW PUZZLES & SOLUTIONS: Hours of fun and ideal for those long commutes, vacations, staycations, or just relaxing at home! TWO DIFFICULTY LEVELS AND TWO GRID SIZES: Arranged in two difficulty levels, Normal and Hard, and two grid sizes, 12x12 and 16x16, this book is perfect for working your way up the scale. MAKES A GREAT GIFT: For that adult, big kid, or little kid that loves sudoku, this book makes a great gift. Be it Birthdays, Easter, Halloween, Thanksgiving, or Christmas- this book is an excellent gift for any occasion. GOLD PUZZLES COLLECTION: Look out for additional puzzle books from Gold Puzzles. We have classic sudoku, sudoku variants, crossword puzzles, word searches, mazes, coloring books, and more! Product Information: Publisher: Gold Puzzles Format: Paperback Pages: 204 Dimensions: 7.5" (W) x 9.25" (H) x 0.46" (D) 19.05cm (W) x 23.5cm (H) x 1.17cm (D)