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Killer Sudoku Puzzle Volume 2 EBook contains total of 228 puzzles organized at 5 different difficulty levels (1-5) with all of their solutions. The instruction to play both in English and Spanish. Each individual puzzle has a single unique solution based on logical strategies and no "guessing" or "Trial & Error" are required. Please note that this is a DRM FREE EPUB format EBook and you should be able to print your puzzles or solve them on any device that allows drawing or typing text over an image (EXAMPLE: Paint Application with the *.JPEG, *.GIF, *.PNG image) and it is not an interactive game.
This book has 250 of the popular Killer Sudoku puzzles, ranging from easy to very challenging. There are five categories: "Warmup" (with 25 puzzles), "Easy" (50), "Medium" (50), "Tricky" (50), and "Difficult" (75) (so no puzzle is actually impossible: -). Solving a Killer Sudoku takes a combination of Sudoku-style logic reasoning and basic math skills, making it a much more interesting puzzle. The puzzles are by the author of the popular Calcudoku puzzle books. Solve both Calcudoku and Killer Sudoku puzzles online at calcudoku.org and score points! You can even submit solutions for the difficult puzzles in this book, and score points for each correct solution. The 1st edition of this book has the same puzzles, but without the solutions in the back. This 2nd edition does have all solutions in the back of the book.
Perfect for coffee breaks, commutes or relaxing at home, this collection of 200 brand new ultimate killer sudoku puzzles is guaranteed to provide you with a daily challenge. Each puzzle is presented in a 9 x 9 grid on its own page. Printed in a portable paperback format meaning it can be taken with you on your travels or sit neatly on your bedside table.