Clues from the Bidding: In the early days of bridge, you were supposed to have a decent hand to open, and even more so to compete once the opponents had opened the bidding.
Some auctions (such as those where the opponents have shown a good source of tricks outside the trump suit) call for an aggressive, on the other hand...
This article on bidding represents a small change from the normal items that fall into this series. Instead of a play problem, there is a multitude of bidding problems.