The Giant Book of Jigsaw Sudoku: 1000 Hard to Extreme Puzzles (Adult Activity Books Series)

✓ Great gift for family, friends or work colleaguesThis Jigsaw Sudoku book is packed with the following features:① 1000 Jigsaw Sudoku Puzzles from Hard to Extreme (333 Hard - 334 Very Hard - 333 Extreme).② Each puzzle is guaranteed to have only one solution.③ Answers to every puzzle are provided at the back of the book.④ Six puzzles per page (8.5 x 11 inches).Playing Jigsaw Sudoku is not just a fun way to pass the time, due to its logical elements it has been found as a proven method of exercising and stimulating portions of your brain, training it even if you will and just like training any other muscle regularly you can expect to see an improvement in cognitive functions. Some studies go as far as indicating regular puzzles can even help reduce the risk of Alzheimer's and other health problems in later life.Completing Jigsaw Sudoku regularly helps the brain process both problem solving and improves the logical thought process with the use of deductive reasoning, which can also be applied to approaching real-life challenges in a different manner.Includes free bonus puzzles you can download book (Logic Puzzles & Brain Games for Adults) ♥ We hope this will be an entertaining and uplifting mental workout, enjoy The Giant Book of Jigsaw Sudoku ♥ Read more