LAWS OF DUPLICATE CONTRACT BRIDGE 1997
Definitions Preliminaries Preparation General Laws The Auction The Play Proprieties The Score Sponsorship Tournament Director Appeals


CONTENTS INDEX
LAWS
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LAW
18		 _BIDS_

A. Proper Form
A bid names a number of odd tricks, from one to seven, and a denomination. (Pass, double and redouble are calls but not bids.)
B. To Supersede a Bid
A bid supersedes a previous bid if it names either the same number of odd tricks in a higher-ranking denomination or a greater number of odd tricks in any denomination.
C. Sufficient Bid
A bid that supersedes the immediately previous bid is a sufficient bid.
D. Insufficient Bid
A bid that fails to supersede the immediately previous bid is an insufficient bid.
E. Rank of the Denominations
The rank of the denominations in descending order is: no trump, spades, hearts, diamonds, clubs.
F. Different Methods
Zonal Organisations may authorise different methods of making calls.


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