Oooh, thanks for posting that, onthegomom. DS5 just beat his dad at chess today for the first time. (DH took off his knights, so it wasn't a completely even match-up. But close! And DH is good!) DS5 hasn't been tested yet. We'll do that this spring. But more and more I'm thinking he might be a DYS candidate.
My point: as I read your post about chess and realized he was in the other room playing a chess match against himself, it prompted me to film him so that I have some chess footage if we ever apply for him. I asked him about a move, and he said "no because then this would happen, then that, then this, then that" about 10 moves ahead! It's good footage, I think, and totally DS5.
So thanks!