Tons of Sudoku for Adults & Seniors

Completing Sudoku regularly helps the brain process both problem solving and improves logical thought process with the use of deductive reasoning, which can also be applied to approaching real life challenges in a different manner.
This Sudoku book is packed with the following features:
1000 Hard Sudoku PuzzlesIncludes free bonus puzzles you can download book (Fitness for your brain: Word Search With Hidden Message: Train your brain anywhere, anytime! - 102 Puzzles for Adults and Seniors) Answers to every puzzle are provided at the back of the book.Each puzzle is guaranteed to have only one solution.six puzzles per page (8.5 x 11 inches).Tons of Sudoku for Adults and Seniors Book is a collection of 1000 sudoku puzzles. Part of the popular "Logic & Brain Teasers " series, the book is designed to help keep your brain cognitively fit, flexible, and young.