Download or read book Sudoku Puzzle Book, 1,500 Extra Hard Mind Twisting Puzzles written by Twisted Mind and published by Createspace Independent Publishing Platform. This book was released on 2017-02-17 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sharpen up your brain with this huge book containing 1,500 mind twisting sudoku puzzles. Don't waste puzzles with this single difficulty book. Featuring 4 puzzles per page with solutions at the end. Look out for other Twisted Mind Puzzle Books.