Download or read book Sudoku 8x8 Diagonal - 200 Master Puzzles Vol.4 written by David Smith and published by . This book was released on 2020-09-08 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each puzzle consists of a 8x8 grid containing given clues in various places. The object is to fill all empty squares so that the numbers 1 to 8 appear exactly once in each row, column, diagonal and 4x2 box.