Download or read book The Age and Sydney Morning Herald Sudoku written by Ivan Logan and published by . This book was released on 2011-05 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Let the countdown begin ... here's the ultimate numbers game back for a 4th volume of 75 sudoku puzzles designed to stimulate and stretch your mind. It's taking over the world, and it's all about thinking outside the square. Includes difficulty rating for each puzzle.