500 Killer Sudoku Puzzles Easy To Hard . Going on vacation? Want to play? Here are 500 puzzles divided into three levels, when you progress through the book, the puzzles get harder and harder! This Puzzles Logic Grid Fresh, Fun, and Easy-to-Read For Adults. There are plenty of Sudoku to enjoy in this puzzles book, with 3 different levels of difficulty, which makes it suitable for intermediate and advanced Killer sudoku players in love with a spectacularly handy format Killer Sudoku puzzles logic grid teaches you logical thinking and deductive reasoning skills. Killer Sudoku helps keep your brain healthy and functioning well. Challenge yourself to finish all the puzzles without cheating! This book with hundreds of hours of fun inside makes a great gift! Killer Sudoku (Sums Sudoku, Sums Number Place, Samunamupure, Kikagaku Nampure) is a variant of the sudoku puzzle. The only distinction is that the sub-regions already contain the defined numbers which are the sums of the digits in some boxes of the puzzle. We've had your entertainment and convenience in mind when designing this book and thought about the small details which make a difference. Wide center margins making it easier to work on the puzzles when you open or fold the book This also makes it easy to tear out the pages if you want to Bigger font and better quality paper than newspapers and magazines - easy to read and write on without worry of bleed through Levels has been expertly assessed for consistency 4 Puzzles per page with answers Get Started Today And Give Your Brain a Great Workout