200 Sudoku Challenges - Testing Your Brain To Keep You Young - Very Hard Difficulty Volume 7 This Book Contains 200 Very Hard Sudoku Puzzles with answers, for Sudoku Puzzlers. Welcome to Sudoku Challenges, which provides you with 200 Sudoku puzzles to test your brain to keep you young. This volume is the next step into the fascinating and addictive world of Sudoku. You are joining a family of millions of people worldwide who enjoy challenging themselves everyday. At the start of the Sudoku Challenges puzzle book you will find a brief introduction to the rules of Sudoku if you don't already...

The Sudoku Book For Grandad - 200 Sudoku Puzzles Complete With Solutions - Very Hard Volume 1 This Book Contains 200 Very Hard Sudoku Puzzles with answers, for Sudoku Puzzlers...but especially Grandad. Welcome to Sudoku Challenges, which provides you with 200 Sudoku puzzles to test your brain to keep you young. This volume is the next step into the fascinating and addictive world of Sudoku. You are joining a family of millions of people worldwide who enjoy challenging themselves everyday. At the start of the Sudoku Challenges puzzle book you will find a brief introduction to the rules of...