Matt Ginsberg is one of the brains behind the New York Times crosswords. But he wasn’t always able to finish them himself, so he built an Artificial Intelligence programme to do it for him.

Dr Fill, as the programme is known, was trained on a mass of data, including a giant database of crossword clues and answers. Dr Fill has just won its first competition, coming first in the American Crossword Puzzle Tournament, the leading crossword competition in the US.