Download or read book Big Book Sudoku X - 500 Hard to Master Puzzles 9x9 written by Dart Veider and published by Createspace Independent Publishing Platform. This book was released on 2018-09-24 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sudoku X also called Diagonal Sudoku. Each puzzle consists of a 9x9 grid containing given clues in various places. The object is to fill all empty squares so that the numbers 1 to 9 appear exactly once in each row, column, diagonal and 3x3 box. The puzzle books series contain: * 250 Hard Puzzles * 250 Master Puzzles * Handy 6 x 9 inch Book Layout * 6 Puzzles per Page * Ideal for Experts The book is for those who like logic and math problems. Decide, developing and improving.