The Huge Killer Sudoku Book: 2nd edition

By Patrick Min

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: -).
All solutions are included in the back of the book.

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.

Do also check out my Colossal Killer Sudoku book

• Format: Paperback
• Language: English
• ISBN: 148952987X
• ISBN13: 9781489529879
• Release Date: May 2013
• Publisher: Createspace Independent Publishing Platform
• Length: 204 Pages
• Weight: 0.73 lbs.
• Dimensions: 0.4" x 6.7" x 9.6"