Tricks AB, 5
YZ, 5
10. Y B Z↷ A
Qn♠ 5♦ 6♠ Kg♠
Remark.—The fall of the queen of spades from Y shows A that the two remaining spades are in Z's hand. Z's third card is the queen of clubs, which he turned up.
Trick 11.
Tricks AB, 6
YZ, 5
11. Y B Z A↷
8♣ 7♣ Qn♣ Kg♣
Trick 12.
Tricks AB, 7
YZ, 5
12. Y B Z A↷
9♥ 10♣ 8♠ 9♠