Caro-Kann't

Writing in the Guardian about his meeting with Bobby Fischer in Iceland, Stephen Moss observes:

Already, said one paper last week, after two days of citizenship, he is the second most famous Icelander after Björk. And I bet Björk can't play the Caro-Kann defence.

Which is an odd thing to say, really, because Fischer's no expert on the subject either. In all his years playing chess Fischer never once played the Caro-Kann defence.