Product Features: 1.Puzzles have a Medium rating, so they are harder than Light Sudoku. 2.250 unique Sudoku puzzles - lots of fun. 3.Supersize 6 * 9, which allows you to take it with you wherever you go. 4.The puzzles are pre-tested to eliminate the possibility of error. 5.All puzzles are large enough to be easy to solve, even without glasses and bright lighting. Unique Sudoku is one of the most popular puzzles of all time. Sudoku's goal is to fill the 9 * 9 grid with numbers so that each row, column, and section 3 * 3 contains all the numbers from 1 to 9. You do not need to be a mathematical genius to solve insidious puzzles from this collection adult Sudoku books are just logic. This cool classic puzzle game has become a sensation. Our brand-new Sudoku book is perfect for beginners and experienced professionals, as it includes 250 different types of Sudoku of medium complexity and is guaranteed to provide hours of exciting entertainment. This travel book on Sudoku has a small pocket size of 6 * 9. Never do without our wonderful book on Sudoku for adults on a long train ride or rainy evening
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