Lesson Five: Fit and Trump Suit
Before this lesson all suits was equal in the play.
In Contract Bridge and in MiniBridge we can use Trumps. Only Declaring Pair can call for Trump suit.
In order to find Trump suit Declarer should count 8 or more cards in one particular suit between his hand and Dummy's hand. 8 card or more in one particular suit will call Fit.
If Declaring Pair do not have 8 or more cards in one particular suit, they will play No Trump.
You already have an experience playing in No Trump - when all suits are equal.