Kriegspiel is basically a German style chess game with some different variations. Mainly the fact that you can see your own pieces but not your opponents and that you need a third party to referee the game. It's similar to Battleship for Americans. I got the idea after playing the game one night with a few friends while drinking a little too much. It was then my mind started racing about this relationship I was not happy with. As for the song it's basically a chess game of psychology, lust and sex between myself and a former partner. I think of it as quite a sexy song with thrills and spills.