Here are another 150 puzzles from Ireland s favourite crossword The Simplex crossword is one of the most popular items in The Irish Times, with tens of thousands of readers attempting to solve it every day for over sixty years. Challenging enough to tax the brain cells, but designed so that it can be completed on the train or in a lunch hour, this huge collection is great value and a must for every crossword fan. This is the ideal way to keep your puzzle-solving skills up to scratch whether you re on holiday, commuting or simply relaxing at home.