Score: AB, one; YZ, love.

Knave of spades turned up.

THE PLAY.

Trick 1.

Tricks AB, 1
YZ, 0
1. Y B Z A↷
3♠ Qn♠ 6♠ 4♠

Trick 2.

Tricks AB, 2
YZ, 0
2. Y B↷ Z A
8♠ 7♠ Knv♠ A♠