Contributor(s): Author: Suduko Puzzle Sudoku Challenge 1 This isn't your Grandmother's Sudoku Puzzle Book For the more experienced Sudoku puzzler Easy to read one puzzle per page LARGE PRINT Easy, Medium, Hard & a few Very Hard just for fun You decide difficulty level for yourself after each puzzle Sudoku Challenge 1 is fun for all ages, even Great Grandmothers Sudoku Challenge 1 of 5 Bringing Sudoku to a new Challenging Level