Quiz your family at home with crosswords, puzzles and games. Su Doku 'the crossword without words' comes with a health warning: it is seriously addictive. Here is a third collection of 100 previously unpublished puzzles for those in need of a fix. Four levels of difficulty with more difficult and fiendish than easy and mild puzzles. You don't need to be a mathematical genius to solve these puzzles; it is simply a question of logic. The...