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.

SLAM BIDDING SIGNALS

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later on, if needed, but Y's jump to 3-Hearts demanded ace showing, so that Z's response of 3 -Spades showed only possession of the ace of the suit
named, also denying thereby having the missing
4* A. There still remaining a chance that a slam
might be made, Y bid 4-Diamonds. To this Z replied with 4-Spades. Y was then perfectly safe in
retorting with 5-Diamonds as the contracting to
date had shown that only a single club and perhaps
one spade trick could be lost. In reply to Y's 5 -Diamonds, that bidder knew that Z might respond
with 5-Hearts, to show that he had exhausted features to disclose, or Z could bid 6-Diamonds to
show the queen of that suit, which would allow a
discard of Y's losing spade. Instead of bidding 5 -Hearts, Z showed his queen by bidding 5-Spades.
Now certain of a little slam, Y ended the contracting with 6-Hearts.
BIDDING OPPONENT' S SUIT
Having previously announced the make at which
your side is to play, a subsequent bid of opponent's
suit states that no tricks of that suit can be lost, provided your side obtains the contract at its own suit.
If, for example, you open the bidding with I-Heart
and are overcalled by I-Spade, your partner's bid of
2-Spades is a slam signal, announcing no losers in
spades (Provided you play the hand at hearts) and
also stating that your partner is strong in hearts.
Frequently the most welcome information that
could be given you is that your partner holds no
loser of an opposing suit. You do not care if he is