Handling a Trump suit - Examples
1
Declarer
A K 4 2
Dummy
9 7 6 5

Draw 2 rounds of trumps only, winning with A and K.


2
Declarer
A 8 4 2
Dummy
9 7 6 5

Draw 2 rounds of trumps only, playing the A the 2nd time


3
Declarer
A 9 4 2
Dummy
Q 7 6 5
Play the A first, then lead a low card to the Queen

4
Declarer
K 6 4 2
Dummy
Q 9 7 5
When guessing N holds the Ace, play a low card from Declarer's hand to Dummy's Queen.
If the Queen wins, lead a low trump and duck in Declarer's hand hoping North holds A X doubleton.

5
Declarer
K 10 8 5 3
Dummy
Q 7 6
First lead low to Dummy's Queen, next lead low from Dummy to Declarer's 10

6
Declarer
Q J 8 4 2
Dummy
7 6 5
Lead low from Dummy twice for two Indirect finesses.

7
Declarer
A K Q 4 2
A K 7
Dummy
8 5 3
6 4
Draw 2 rounds of trumps first, then play 3 rounds of , ruffing 3rd time in Dummy.   Only then draw Opponent's last trump.

8
Declarer
A K Q 4 2
A K 6 4
Dummy
8 5 3
5
Fist lead ♥A, then ruff a heart in Dummy. Return to Declarer's hand via a trump lead, then ruff another heart in Dummy. Only then draw the remaining Enemy trumps.
Keep the ♥K for a winner later on.