Difficult Sudoku Puzzles, Adult Activity Book

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.