Tricks AB, 6
YZ, 3
9. Z A Y↷ B
Knv♥ Kg♥ 3♥ 2♥
Trick 10.
Tricks AB, 6
YZ, 4
10. Z A↷ Y B
Kg♣ 9♠ 10♥ 3♦
Remark (Trick 10).—B can count A's hand—viz., a spade and two diamonds. Therefore, if B overtrumps he cannot possibly win two more tricks.
Trick 11.
Tricks AB, 6
YZ, 5
11. Z A Y↷ B
4♥ 9♦ Qn♣ 6♦
Tricks 12 and 13.—Z leads a trump (he has only trumps in hand), and B makes ace and eight.
AB win two by cards.