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fit showing jumps


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Any one care to explain these to me in a somewhat simplistic way. or give me some links please

Fit showing jump= generally used for hand with good support (4+ trumps), a mixed raise (mixed = in between between invitational and preemptive raise, usually aboiut 9 losers), and showing a good side suit.

 

Another way to think of it is a game try in the suit bid, if pard has something good in that suit, he will bid game.

 

A good discussion of this is found in the book "Partnership bidding at bridge", by Robson/Segal, which is online (free! :blink: ) at Daniel Neill's site

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Certainly: Fit showing jumps are really quite simple and almost tautological.

 

A fit showing jump is a jump shift that show both

 

(a) Values in the bid suit

(b) A fit for partner's suit

 

Consider the following hand

 

3

KT63

AQT76

765

 

You are dealer and pass in first seat. LHO also passes, and partner opens 1H.

RHO overcalls 1S. By jumping to 3D, you are able to show primary trump support as well as length in Diamonds.

 

Fit showing jumps are extremely useful. In particular, they often allow your side to determine whether you have a double fit which can be crucial for both constructive and competitive bidding. With this said and done, you need to carefully decide when fit showing jumps apply, as well as the minimum requirements for this bid.

 

One relatively standard set of agreements is that fit showing jumps apply

 

(a) By passed hands

(b) In competition (RHO overcalls or doubles)

 

Fit showing jumps use up quite a bit of bidding room, so they are often used with fairly tightly defined hands. In general, if you are making a fit showing jump you should have at least a 5 card suit with 2 of the top three honors and Qxxx or better in support of partner. Its certainly possible to have other agreements, but most partners would be expecting something like this.

 

Some bididng systems that systemically use light openings have incorporated fit showing jumps as part of the constructive response structure. For example, playing MOSCITO, and 3m response to a 1M opening is fit showing (though non-forcing) and promises 6+ cards in the minor and 3 card support for partner.

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