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- Newsgroups: rec.games.bridge
- Path: sparky!uunet!gumby!wupost!eclnews!spot!geppo
- From: geppo@spot.wustl.edu (Giuseppe Bianchi)
- Subject: Re: 2/1 question
- Message-ID: <1993Jan28.060054.26186@wuecl.wustl.edu>
- Sender: usenet@wuecl.wustl.edu (News Administrator)
- Nntp-Posting-Host: spot
- Organization: Washington University, St. Louis MO
- References: <9101@news.duke.edu> <1993Jan26.182822.17803@linus.mitre.org> <9126@news.duke.edu>
- Date: Thu, 28 Jan 1993 06:00:54 GMT
- Lines: 98
-
- About SJS:
-
- Robert D. Silverman writes:
- >> The strong jump shift does not come up sufficiently often to justify
- >> wasting a call (3C) in this way.
-
-
- Greg Lawler writes:
- >It is not a waste of bidding room if one ends up
- >describing one's hand. To bid
- >3C and then support spades shows: a) a 5+ clubs suit which is semi-solid
- >as a source of tricks; b) 4 card spade support; c) interest in slam.
- >It is very hard to show all of these if one starts with 2C.
- > [...]
- >It is quite acceptable to play 2/1 and strong jump shifts.
- > [...]
- >I don`t jump shift a lot, I admit; but when I do I describe
- >my hand very well and almost always get to a good contract.
- > [...]
- >It is true that by playing strong jump shifts, I give up other uses
- >of 1S-3C. By a passed hand I play that 3C is a strong limit raise in
- >spades with club cards.
-
- You have your own reasons, and your justifications of SJS are sounds
- (btw: the rules you define here are widely accepted in the SJS bridge
- community).
- Anyway, playing *2/1*, SJS gives you only the advantage to bid (at very
- high level) the 5+ cards side good suit with 4 card raise (the hands with
- strong responder suit and no opener suit raise are perfectly covered by
- the 2/1 approach - NOTE: not by SA! there the need of SJS is slightly
- stronger!).
-
- Once considered those simple facts, it's up to you to decide if to use
- 3C as SJS or use this bidding with an alternative meaning (for example
- Bergen raises, WJS, solid minor suit, minisplinter, or whatever you want,
- of course remaining in *reasonable* meanings).
-
-
- I personally prefer to use Bergen Raises, for mere statistical reasons:
- they happened much more frequently than a SJS _with the meaning of
- side suit with support_, and they allow a much better description of the
- weak hands with raise (i.e. you specify immediately a 4 card raise)
- and allow to play the direct double raise as preemptive.
-
-
- I give you some numbers: As I told in a previous post, I have a conventional
- raise for the hands with 4+ trump support and a side suit source of tricks,
- thus it's very easy for me to remember *when* this particular hand
- (and I repeat again, it's the *only hand* in which a SJS can take
- advantage over a 2/1 sequence) happened.
-
- - In three (or more) years of use, that convention (that is *exactly* the
- *only* hand that you cannot describe with a plain 2/1 application) happened
- no more that 5/6 times (I played at least twice a week with my fixed
- partner).
- You are spending *3* bids for such hand (the SJS in the three different
- suits), that means that every bid is used with a frequency of less than
- once a year.
-
- - on the other side the 3C bergen raise happen in the average 1 time every
- game, while the direct double raise with preemptive (well restricted)
- meaning happens about 1 time every 4/5 games (I don't consider the 3D
- Bergen raise, because it's solved with the direct double raise,
- playing plain 2/1). [furthermore I play 3H over 1S as generic splinter,
- and this is also a frequent bid].
-
- With a simulation somebody can probably get the exact statistics of frequence
- of Bergen Raises, SJS, WJS, solid minor, minisplinter or any other meaning.
-
- Those number speaks for themselves and clarify the thesis of Bob, that:
- >> The strong jump shift does not come up sufficiently often to justify
- >> wasting a call (3C) in this way.
-
- Of course, if you don't like, for some personal reasons, Bergen raises or
- WJS or minisplinter or whatever, just ignore those statistics and compare
- them among the bidding you like. And at the last point pick your preference
- for the particular 3C bid.
-
-
- some more comment:
-
- - the psychological impact to miss a slam (because of the absence of
- a SJS) is much more greater than the impact of a missing competition
- or preempt. Anyway at MP both the two hands have the same weight.
- At IMP the hands have, yes, different weight, but the numbers that I gave
- you (based on my experience) are *far* from justify the use of SJS
- with respect of BR.
-
- - It's much more difficult that a journal publics a competition
- hand than a slam hand. Thus, if you read about the difficults given
- by the absence of a SJS, you'll very rarely read about the advantages
- of a BR (with limit or preemptive meaning).
-
-
- Take all this into account when you decide which meaning to give to
- the 3C and 3D bid.
-
- Giuseppe.
-