SUDOKU PUZZLE BOOKS for ADULTS: MEDIUM to HARD: 400 SUDOKU Puzzles Large Print with Solutions super addictive challenging collection math logic brain (Paperback) (ISBN-13: 9798674036067)

400 SUDOKU Puzzles Large Print with Solutions super addictive challenging collection math logic brain games 2 Levels of difficulty gifts to improve your memory, relieve boredom and stress

• 400 Puzzles of 2 difficult levels.
• 200 Puzzles - Medium Level.
• 200 Puzzles - Hard Level.
• User-Friendly Layout.
• Large Print.
• Wide Margins.
• Easy to tear out pages.
• Quality Paper.
• 4 problems per page.
• Solutions at the end of the book.
• Large size 8.5 x 11" .
• Perfect gift for sudoku lover and anyone who likes easy and medium Sudoku.
• Great to improve your brain memories, relieve boredom and stress
• Made in USA.