 According to "Guinness World Records", May 15, 2007, the most prolific crossword compiler is Roger Squires of Ironbridge, Shropshire, UK.On May 14, 2007, he published his 66,666th crossword, equivalent to 2 million clues.He is one of only four setters to have provided cryptic puzzles to "The Times", "The Daily Telegraph", "The Guardian", the "Financial Times" and "The Independent".