nabla: Come to think of it, I've played some very good Dark Chess games. Too bad I didn't put stars next to them so that I'd be able to find them. I also came across an Extinction Chess game played by two other people that I'm sure your friend would include in his book. It involved promoting a Pawn to a King to win the game when the obvious move of promting to a Queen won't work. I wish I could remember where I saw that game. I'd send it right over to you. Perhaps one of the players invovled will see this post and remember the game. I'd like to check it out again.