Krazydad Large Print Psycho Killer Sudoku Volume 1: 108 Tough to Insane Puzzles

Krazydad Large Print Psycho Killer Sudoku Volume 1: 108 Tough to Insane Puzzles

Killer Sudoku is a very popular variant of classic Sudoku that adds some new challenges. These puzzles have more going on and can be extremely satisfying to solve. Once you try them, you’ll find it very hard to go back to boring plain old Sudoku!This book has 108 puzzles, in order of difficulty ranging from Tough to Insane, using the same grading system as my puzzle website, Krazydad.com. Each puzzle has a single, unique solution. This is a LARGE PRINT book, with one large puzzle per page. I also publish a 4-per-page Killer Sudoku series with 360 puzzles per book. Jim Bumgardner has been making and publishing free puzzles at Krazydad.com since 2005. The site now offers over a million puzzles, free to download and print. Jim's Two Not Touch puzzles are currently printed Monday thru Saturday in The New York Times . Jim has worked for over 30 years as a computer software developer and is also a pianist and composer. He lives in Los Angeles with his wife, his mother-in-law, two pretty good dogs (well, one of them, anyway), and a broken pencil sharpener.