Trick 3.

Tricks AB, 0
YZ, 3
3. A Y↷ B Z
10♠ 8♠ 5♠ Kg♠

Trick 4.

Tricks AB, 1
YZ, 3
4. A Y B Z↷
3♣ 8♥ Knv♠ 7♠

Trick 5.

Tricks AB, 2
YZ, 3
5. A Y B↷ Z
4♣ 9♥ Qn♠ 9♠

Trick 6.