A chessboard awaits the next round just outside the ring during a chessboxing match in Berlin in 2012 AP Images There’s a boxing ring planted in the middle of a London nightclub. So far, nothing too ...

So far, nothing too out of the ordinary. But there’s also a folding table in the center of the ring, and on it, a chessboard. And rather than gloving up to start sparring, the two boxers, hands ...