Hard Sudoku Books for Adults

Description

All 100 Extreme Sudoku puzzles in this book are Hard 16×16 Sudoku puzzles. 

• 16×16 puzzles
• Use numbers 1 – 16
• 1 puzzle per page
• Difficulty level: Hard
• Solutions in the back

Slow the mental decline caused by Alzheimer’s disease by exercising your most important muscle – your brain. Puzzles are useful tools for maintaining brain health.

Do you get frustrated when your phone battery drains too quickly while you are playing games on it? Pick up a puzzle book to give your phone a rest.

You can find more puzzle books and notebooks at BrinkPublishing.com