The Times Su Doku 2: The original number-placing puzzle    compiled by Wayne Gould Order:  USA  Can HarperCollins, 2005 (2005) Paperback     Reviewed by Hilary Williamson Wayne Gould, who first came upon Su Doku (which translates to number puzzle) in a Tokyo bookshop, created the puzzles in this book, organizing them into four groups - Easy, Mild, Difficult, and Fiendish (answers are provided at the back). Essentially, Su Doku puzzles are 9x9 matrices, which are viewed as rows, columns and 4 groups of 3x3 boxes. Each puzzle comes with a scattered set of numbers filled in, and has a unique solution, by which all the numerals from 1 to 9 appear in every row, every column, and every box, only once in each set. Sound challenging? It is, but read the author's slicing-and-dicing tips, then start with the first Easy puzzle and keep on going. And one more tip - these slim volumes make great stocking stuffers for young and old. Note: Opinions expressed in reviews and articles on this site are those of the author(s) and not necessarily those of BookLoons. Find more NonFiction books on our Shelves or in our book Reviews