I have seen patterns in the games. They are computer generated and only the lists of words change. So if someone has a great mind for patterns, or has written a program that can recognize the pattern after a few right answers it is possible to get those super fast solves. I do this for fun, there is no money involved, and is just for fun and bragging rights, I try to just have fun with the games and ignore the high scores. I will admit though, sometimes when I know I have solved it at a pretty fast time without using pattern recognition, it can be frustrating.
Happy gaming. Peace out,