Download or read book Sudoku Addict's Workbook written by Paul Stephens and published by Duncan Baird. This book was released on 2008-02-06 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a sudoku solving expert, this workbook offers 150 puzzles generated by a software program. It includes an introduction that covers major techniques from pairs and triples to X-wing, swordfish and non-unique rectangles. Each of the puzzles has accompanying tips for those who feel they need a helping hand, and a grade-yourself time score.