A previous discussion on HN indicated that at least on some levels they are just checking if the answers match those one that have been provided by somebody: h

A previous discussion on HN indicated that at least on some levels they are just checking if the answers match those one that have been provided by somebody: https://news.ycombinator.com/item?id=12701272 https://news.ycombinator.com/item?id=12701272