B: What is racing chess?
KXA: That's almost like normal chess but with one additional small change in the rules.
There is an additional condition for winning the game.
The first player who puts the tower on A8 immediately wins the game.
That's why it's called racing chess.
B: But one of the players starts with the tower already on the field A8.
KXA: Yes, that's the joke.
B: For a moment I thought that you have an actually valid example.
KXA: But it is a valid example of how a small modification completely changes a game.
B: Do you want to play first?
KXA: Yes, I want to be the racing girl!
B: We have to come up with a name.