BBC Radio 4 - Today - Puzzle for TodayThis is no ordinary crossword! Instead of a word or phrase, each clue is a regular expression (or a ‘regex’). To complete the puzzle, find the letter matching both the horizontal and vertical regex for each square. The Internet has many regex resources, allowing you to learn and practice online – but here are a few pointers to get you started: Characters in square brackets [LIKETHIS] are 'characte
