Sudoku 200: Medium Puzzles for the Advanced Beginner

A Sudoku a day, will keep the doctor away! Have you seen the headlines: "Brain Games May Help Thwart Alzheimer's". A study in the "Archives of Neurology" has reportedly found a link between "brain-stimulating activities" and the protein that causes Alzheimer's. Like you need physical exercise, you also need Brain exercise. My series of Sudoku books will aide you in keeping your mind sharp and alert. So, Enrich your life and exercise your mind. With this book and it's 200 Medium Logic Puzzle...