Imperfect vs incomplete information What's the difference? To illustrate, please give examples of 


A game with perfect but incomplete information; and
A game with complete but imperfect information.


Related.
You are at a decision point and you don't know what strategy the other player has taken. But you still know that which game you are in, you still know the other players' strategy sets etc. 
Under incomplete information you might not even know what game you are into. 

For example: Two firms are taking up R&amp;D projects sequentially. One is the first mover. It decides whether to take up R&amp;D or not. Now the second firm has to decide but does not know what first firm has decided. This is imperfect information. 

Now imagine ypu are playing a card game and need to throw a card but you don't know whether you are playing poker or sweep. This is incomplete information.