Mark Danna writes puzzles for a living. His credits include more than two dozen word search books; over 100 crosswords in venues such as The New York Times; and, as coauthor, seven annual editions of Mensa’s page-a-day Brain Puzzlers calendar. Since 1991, he has penned the clued-rhymes puzzle Wordy Gurdy under the alias Tricky Ricky Kane for an international newspaper syndicate. Danna currently serves as assistant to the puzzle editor of the Wall Street Journal.