Finchley Central is a mind game in which two players take turns naming stations in the London Underground. The first person to name Finchley Central is the winner. Of course, the first player could say "Finchley Central" straight away, but as maths professor Jonathan Partington notes, It is clear that the ‘best’ time to say Finchley Central is exactly before your opponent does. Failing that it is good that he should be considering it. You could, of course, say ‘Finchley Central’ on your second turn. In that case, your opponent puffs on his cigarette and says, ‘Well…’ Shame on you.