Trick 5.
Tricks AB, 2
YZ, 3
5. B Z A Y↷
8♠ 2♠ A♠ 10♠
Trick 6.
Tricks AB, 2
YZ, 4
6. B Z A↷ Y
4♥ 3♥ 10♥ A♥
Remark (Trick 6).—Y is justified in playing a false card here, notwithstanding General Principle 12 (p. [108]). The heart is a forced lead, and the card led (the ten) is obviously A's best. Y's scheme is to take another round of trumps, and then to underplay in hearts (see p. [101]); so he puts on the ace to deceive B as to the position of the king.
Trick 7.