Solve Extreme Sudoku

About the Book

After a short discussion of Sudoku and presentation of tools in Section 1, this book gives a review of standard techniques or strategies to solve these puzzles in Section 2. Section 3 will treat advanced solution techniques that will allow the most difficult puzzles to be solved. The primary focus of the book is on this section, and the reader should find these techniques easy to apply to achieve success.

Section 4 gives 14 exercises that will allow the reader to practice the techniques given in section 3. These exercises, with solutions, provide additional instructions on the application of section 3 techniques.

Section 5 gives 16 puzzles to solve, with answers. The first 4 puzzles are for “warm up” and are labeled Evil. The 12 puzzles that follow the Evil puzzles are very difficult and are labeled Extreme. This section could be considered a “graduation exercise”.

About the Author

Robert (Bob) Emmert is a retired aerospace engineer. Bob has been working Sudoku puzzles for five years, and has developed some solution techniques, given in this book, that should be helpful to “Sudoku Warriors”.

Bob graduated from the University of Arkansas in 1953 with a BS in Electrical Engineering. After graduation Bob attended The Oak Ridge School of Reactor Technology (ORSORT) for one year to study Nuclear Engineering. He was then employed by the General Electric Co. on the Aircraft Nuclear Propulsion project and developed the reactor control systems for experimental reactors. Bob began his aerospace career with North American Aviation in 1961. He attended Ohio State University and received a MS in Electrical Engineering in 1964. He was the manager of Advanced Development Engineering for the Missile Division of Rockwell International and his technical expertise was “Tactical Missile Guidance and Control”. Bob (with another engineer) holds a patent on a strap down, guidance system for a tactical missile.

Scott Gandert is the author of several books, most recently, “Searching for Brakemen” (Indiana: IUniverse, 2015). He holds an MBA with an emphasis in International Healthcare, an MA in Counseling Psychology, and a BA in English. He is a former teacher, former waiter, former landscaper, former counselor, former CB radio salesman, former small business owner, former private investigator, and full-time husband and father to 4 indoor cats. He is a Sudoku enthusiast and enjoys working the most difficult puzzles he can find, typically puzzles from www.websudoku.com.