With so many Sudoku puzzles in one book, you definitely have more than enough opportunities to find the solving technique that works best. Allocate a few minutes to Sudoku. The game has so many benefits that you will feel not only today but also in the future. As a matter of fact, Sudoku is essential in delaying the onset of Alzheimer's. Play today. | The Gift Book for Nerds Sudoku Solving Techniques by Senor Senor Sudoku, Paperback | Indigo Chapters