DC Challenge
DC Challenge was a 12-issue comic book limited series produced by DC Comics from November 1985 to October 1986, as a round robin experiment in narrative. The series' tagline was "Can You Solve It Before We Do?" Publication history. The "DC Challenge" series was conceived during a rooftop party at the 1983 San Diego Comic-Con. The premise of the series was that each chapter would be written by a different author and illustrated by a different artist. No consultation between authors was permitted. As well, each chapter would end in a seemingly impossible cliffhanger from which  that chapter's author had to have planned a viable escape, and the name of the next chapter would be provided. Authors were free to use any character or concept from DC's then-50 years of publication, with the exception of those whose appearances they were currently writing. Dick Giordano had been the original editor of the series, but turned the job over to Robert Greenberger before the first issue was published. The last issue of "DC Challenge" was a collaborative effort by six of the twelve writers.