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Inverted minors refers to a treatment introduced by the Kaplan–Sheinwold (K–S) bidding system for the popular card game bridge. The original structure of Precision, another bidding system, also employed inverted minors over a 1 ♦ opening. However, the treatment is no longer restricted to users of these bidding systems.
This is a list of bidding systems used in contract bridge. [1] [2] Systems listed have either had an historical impact on the development of bidding in the game or have been or are currently being used at the national or international levels of competition. Bidding systems are characterized as belonging to one of two broadly defined categories:
25 Bridge Conventions You Should Know is a book on contract bridge co-written by Canadian teacher and author Barbara Seagram and British player and author Marc Smith.It was published by Master Point Press in 1999.
Inverted minor suit raises are used (a single raise is strong, a double raise is weak and preemptive). Weak two bids, including 2 ♦. 2 ♣ is the only strong, forcing opening. Defensively, simple overcalls are taken to have the same range as an opening bid, and take-out doubles emphasize distribution.
The Official Encyclopedia of Bridge (OEB) presents comprehensive information on the card game contract bridge with limited information on related games and on playing cards. It is "official" in reference to the American Contract Bridge League (ACBL) which authorized its production and whose staff prepared and/or supervised its various editions.
See the Glossary of contract bridge terms for an explanation of unfamiliar words or phrases. Walsh is a convention used in the card game of bridge in response to an opening bid of 1 ♣. [1] The convention has its origins in the Walsh System [2] developed by Richard and Rhoda Walsh. [3]
For example, on the sequence 1 ♣-1 ♠ (with or without opponent's interfering);1NT-2 ♣;2 ♦,2 ♥ will show an invitational hand with minimum five spades and four hearts, 2 ♠ an invitational hand with minimum five spades (in which case one does not have four hearts) or possibly six spades with or without four hearts. 2NT will show a balanced invitational hand, 3 ♣ typically an ...
(With the opposition opening 1NT it is unlikely you would want to go beyond 3NT if the Cappelletti suit is a minor). In this scenario, a Cappelletti bid from Intervener of, for example, overcall 2 ♥ shows Advancer that partner has 9-14 HCP in a hearts suit and also another undisclosed 4 card minor suit.