Correct contract bridge / by E.V. Shepard ; including the official Laws of contract bridge adopted by the Whist Club, New York, and by all the leading clubs in America.

REBIDDING

II3

ing requires only 3 tricks to assist. It is declarer's
business to realize that his partner's assist shows
only 3 tricks and to govern his subsequent contracting accordingly.
An immediate assist justifies the declarer's advance of his contract one trick for each trick that
he holds in excess of what his first declaration announced. The following hands illustrate the rebidding of hands probably incapable of making
slams.
You open the contracting with I-Heart; your
partner bids 2-Hearts over an adverse declaration
of 2-Diamonds; you should bid 4-Hearts, as game
seems probable:
4 AJ 5 3 v KQ9742 4 J I9 0 -
You bid 2-Clubs over dealer's declaration of iSpade; your partner goes 3-Clubs over opponent's
2-Spades; you may advance your contract to 4 -Clubs:
* 52 v A83 * AKQ 6 0 97 5
Your opening make of i-Diamond is raised by
your partner to 2-Diamonds over an adverse iSpade; unless opponents have an advanced score
you should not rebid, whether your opponents pass
or bid 2-Spades; you have better chances to save
game than you have to go game:
io 6 V A932 4 84 0 AK I-53