Just had the pleasure of listening to a Turing Award winner, and to answer a question about how to know what issues could come up. His response, "Read science fiction!" helps scientists imagine the future. I'll take his advice and
stick to my mostly fiction reading :)
Hmm, an interesting pattern is that every queen is a knight's move away. I haven't thought about this problem since I started dabbling in chess but now looks like a simple pattern.