Download or read book Sudoku Puzzle Master Book, 1,200 Extra Hard Puzzles written by Sudoku Master and published by Createspace Independent Publishing Platform. This book was released on 2017-03-08 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Have fun while exercising your brain. Sudoku helps delay dementia by making your brain work in a different way and giving you a great sense of accomplishment. This massive, bargain size single level book contains 1,200 puzzles. There are four puzzles per page and in case you get stuck the solutions are at the end of the book. 8.5" X 11"