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Welcome to the 9 Circles of Sudoku Hell! From Merciless to Maddening to Murderous, this is a book to challenge even the most seasoned Sudokuist. By the end of this book, you ll be a Sudoku Genius. With 144 puzzles (and solutions) and an advanced strategies master class from puzzle expert Tom Sheldon, Sudoku Genius includes logical strategies such as: . The Force (and its variant, the Pincer) . Channeling . Completing the Square With these strategies in your arsenal, you ll have everything you need to solve these puzzles if you dare to take the Genius challenge.
Tom Sheldon has degrees in artificial intelligence and bioinformatics, and is working toward a doctorate in mathematical biology, with a sideline in children s books. He lives in London with his wife and son.