9.2 Promotion of High Cards  
Promotion is a way of establish-
ing tricks.


You can develope tricks by promoting your high cards.
In the hand diagram at the left, South can not develope tricks in hearts, unless he gets rid of East's ace.

In order to get rid of East's ace South must lead one of his touching high cards. If  East plays ace of hearts, South's remaining cards will be promoted to highest cards in hearts.Now, you can make two tricks in hearts