If you would like “to compete for up to $50,000 by piecing together a series of shredded documents”, but have not yet entered DARPA’s compete-for-up-to-$50,000-by-piecing-together-a-series-of-shredded-documents contest, tough luck. The deadline for entering was November 28.
BONUS: They offer a consolation puzzle:
UPDATE (December 3): A team has claimed victory in the contest, reports New Scientist magazine