I believe it's on the GitHub set up by Pete Winn. Iirc there are something like 15k words possible, and it's random based on some sha hash thing done at refresh time. So, there likely is some smart strat one could employ. I forget where he said he got the word lists from, but one nice thing is that it's not as sterilized as the NYTs list, but I assume it still includes loose rules like "no plurals" (an exception being "cacti" though).