Bottom, Series 2

[Eddie is trying to teach Richie how to play chess]

Richie:
Right, let me get this sorted out. Now the bent vicar stands next to the queen. And the queen goes in every direction.

Eddie:
That's right.

Richie:
[looking disgusted] And they let children play this, you say? I mean, it's pretty strong stuff, isn't it Eddie? You know, knights taking prawns? And apparently, if a prawn goes all the way he turns into a queen!