The eagerly-awaited fifth book in the bestselling Times Difficult Su Doku series. A collection of 200 previously unpublished Difficult Su Doku puzzles
- perfect for the intermediate Su Doku solver in need of a constant supply of challenging puzzles. You are guaranteed hours of absorbing brain-stretching entertainment. Since the first Su Doku puzzle appeared in The Times in November 2004 they have become a phenomenon with over 5 million copies of The Times Su Doku books sold worldwide. You dont need to be a mathematical genius to solve these puzzles; it is simply a question of logic. Each puzzle has a unique solution
- & theres no guesswork required. The Times Su Doku remains the original the best & the market leader.