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The Guardian Killer Sudoku 1
Test your wits against 210 difficult previously unpublished killer sudoku puzzles in the first book in the new Guardian puzzle book series. The Guardian's killer sudoku puzzles are enjoyed by hundreds of thousands of people every day. While only a minimal level of mathematical knowledge is needed, all of your logical reasoning will be required to solve these brand-new puzzles....Paperback$3500Unit price /UnavailableAvailableShips in 2-3 weeks