A celebrated game by Adolf Anderssen, the Immortal Game, featured a queen sacrifice as part of White's final mating combination. In the diagram position Anderssen gave up his queen with 22.Qf6+! to divert Black's knight: the game continued 22...Nxf6 23.Be7#. This is an example of a sham queen sacrifice, as the sacrifice resulted in checkmate only one move later. White was able to mate since his minor pieces were clustered around the Black king, while Black's pieces were either undeveloped or trapped in the white camp and so unable to defend.