Difficult Sudoku Puzzles, Adult Activity Book

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Playing Sudoku has several beneficial effects for the player: - Improves memory function - Improves logic and reasoning function - Enhances swift decision making - Reduces hesitation of action - Improves focus and concentration - Increases happiness through achievement and sense of accomplishment - Aids relaxation - Provides a form of escape - Reduces stress and anxiety - Improves problem solving skills - Improves strategy and planning skills With all these benefits in mind, challenge yourself by working your way through the very difficult Sudoku puzzles within this book.