Download or read book Sumo Challenge 3 written by Martin Duval and published by Createspace Independent Publishing Platform. This book was released on 2018-07-19 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the third book of the popular collection: Sumo Challemge. As usual you will find the best quality Sumo puzzles. A Sumo is composed of 13 Sudoku grids interlaced together. This is an impressive puzzle but your best asset to resolve it is : logic and patience. Try it !!!