Download or read book Su Doku Challenge Book 1: 200 Su Doku Puzzles (Collins Su Doku) written by Collins Puzzles and published by Collins. This book was released on 2018-01-11 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Are you up to the challenge of 200 new Su Doku puzzles, arranged in easy, medium and difficult categories? Keep your mind sharp and test your powers of deductive reasoning. Ideal for whiling away those long commutes, traveling or relaxing at home.