code: def log_player_plays_knight(self, player, location, victim):
          
          self._logln('{0} plays knight'.format(player.color))
          self.log_player_moves_robber_and_steals(player, location, victim)
docs: :param player: catan.game.Player
          :param location: string, see hexgrid.location()
          :param victim: catan.game.Player