Every day the site asks one open question ( Name a month people love , etc.). Then you do two things: Guess what the most common answer was yesterday, and answer today s question. Tomorrow s puzzle is built from whatever everyone actually typed today (except for day 0 of course, these are made up). So the game generates its own content and you are playing against the player base.I also do some simple answer normalization using plural folding, article stripping and a synonym table (fridge/refrigerator). It s still imperfect, feedback appreciated.