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Challenging and Fun Brain Exercises for the Clever Young Adult Sudoku is one of the best ways to exercise your mind in a fun and challenging way. Some of the benefits of solving Sudoku puzzles include: * improved logic skills * improved memory * increased concentration levels >Each puzzle includes special timer fields that allow you to track your progress and see how quickly your skills improve. Order now and start exercising your mind today! Develop incredible logic skills and improved memory in a fun and entertaining way!