The brain needs to be exercised, just like any other muscle in the body. Fact! In this line of thought, we designed this book with hundreds of sudoku variations

Do you love the Japanese puzzle of Sudoku? Are you always looking for next great challenge to test your mind? Sudoku is a fabulous brain exercise, comprising a

You don't need to be a math expert to enjoy a sudoku--all you need is a logical mind, so sharpen your pencils and brace your brain for this collection of sudoku

Featuring 101 giant Sudoku 16x16 puzzles, sorted into order of increasing difficulty and printed on large, top-quality paper, this unique collection of puzzles

The Everything Giant Book of Brain Boosting Puzzles-Challenge Your Mental Muscles! Put your brain to work with the Everything Giant Book of Brain-Boosting Puzzl