200 Sudoku Challenges - Very Hard - Volume 1 200 Sudoku Challenges - Testing Your Brain To Keep You Young - Very Hard Difficulty Volume 1.
You are joining a family of millions.
This Volume gets you started into the fascinating and addictive world of Sudoku.
Welcome to Sudoku Challenges, which provides you with 200 Sudoku puzzles to test Your Brain to Keep you young.
This Book Contains 200 Easy Sudoku Puzzles with answers, for Sudoku Puzzlers.
One of the books of this Sudoku Puzzle Book Series. 200 Sudoku Challenges - Very Hard - Volume 1 200 Sudoku Challenges - Testing Your Brain To Keep You Young - Very Hard Difficulty Volume 1