TRICK 1.--Z cannot afford to hold up the ace of spades, as
the entire diamond suit is against him. The game can neither be saved
nor won unless the king of clubs is in B’s hand. Should this be the
case, it may be necessary to lead twice from Y’s hand.
Z proceeds to make these entry cards by leading the high hearts from
his own hand. The situation is one that is not only interesting but
instructive.