Bridge World Vol. 77 MSC Prob. H

很有趣的一道首攻题。

E-W Vul. You, South, holding:
AT9
T9862
7
Q864

make a lead towards the bidding:

S W N E
- 1D P 1S
P 3S P 4NT
P 5D P 5H
P 5S* (All Pass)

*: no spade Q

hint是：既然说了是有趣的题目，照着有点“脑筋急转弯”的方向去想想……