Sorry, in smaller versions of Heads up No-limit Texas Hold'em. Okay. So, that is one reason for why imperfect information games are hard. There is a second reason that I wanted to get to you, and I think I still have time to do it. This is more recent research. The second reason is that states don't have well defined values in imperfect-information games. So, let me show you what I mean here. In a perfect-information game, and it's single agent settings, if you take smashing, your opponent takes an action, you find yourself in