The British cryptic crossword was imported to the US in 1968 by composer and lyricist Stephen Sondheim in "New York" magazine. Until 2006, "The Atlantic Monthly" regularly featured a cryptic crossword "puzzler" by Emily Cox and Henry Rathvon, which combines cryptic clues with diabolically ingenious variations on the construction of the puzzle itself. In both cases, no two puzzles are alike in construction, and the intent of the puzzle authors is to entertain with novelty, not to establish new variations of the crossword genre.