Sudoku Puzzle Book 600 Mind Twisting Puzzles Medium And Hard Levels PDF Download

Are you bored? Do you feel like your brain is sluggish? Why not challenge your brain to keep it sharp & focused by playing these Sudoku Puzzles. Scientific studies found that playing Sudoku Puzzles: improve your logical thinking improve your problem-solving skills improve your focus & concentration improve your memory & recall improve your IQ score help decrease your anxiety and stress and many more And playing these particular Sudoku Puzzles helps build your brain and mental acuity over time because of its structured, progressive difficulty levels. So if you are bored and want more challenges, try playing these Sudoku Puzzles because it will blow your mind. This Sudoku Puzzle Book includes: an Instruction Page (to give you the rules on how to play it) Solution Pages to check your answers and 6 Progressive Difficulty Levels (100 Very Easy Level, 100 Easy Level, 100 Medium Level, 200 Hard Level, 200 Difficult Level, 300 Insane Level) That is 1000 mind-blowing Sudoku Puzzles!