His puzzles have appeared in 32 countries outside the UK. In 2013, he celebrated his 50th year as a professional setter, on the same day as the Crossword's First Centenary. By 30 June 2013 he had compiled 74,634 crosswords, equivalent to 2.25 million clues. He holds the record for the longest word used in a published puzzle, the Welsh place name: Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch, which he clued as an anagram: "Giggling troll follows Clancy, Larry, Billy and Peggy who howl, wrongly disturbing a place in Wales (58)". He is one of only four setters to have been on the regular teams of all five quality newspapers ("The Times", "Daily Telegraph", "The Guardian", "The Independent" and "Financial Times"). He holds the Guinness Record for the Longest Published Crossword – at 8 feet long, because Onsworld Ltd were unable to publish the whole 24 ft puzzle. He has also produced a 3D crossword that fits on a Rubik's Cube.