When should I not play my honor cards?
DefinitionIn contract bridge, to duck means to deliberately play low to a trick which you have led and intentionally losing in order to set up a suit or to preserve controls or entries. When applied to a suit you have led it is referred to as a duck but it is called a hold-up when you purposely play a low card in a suit played by the opponents when you could win the trick.
The ProblemIf the dummy has a five-card suit headed by the ace and the king facing three small cards, you want to create two extra tricks using a ducking play.
The opponents have five spades between the two hands, including the spade queen and Jack. You must sooner or later lose a spade trick no matter what, so try lose it as soon as you can while you still have control of the suit