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- Path: sparky!uunet!gumby!yale!hsdndev!cfa203!willner
- From: willner@head-cfa.harvard.edu (Steve Willner)
- Newsgroups: rec.games.bridge
- Subject: Re: Offshape doubles
- Keywords: double, free bid.
- Message-ID: <1993Jan26.194419.5640@head-cfa.harvard.edu>
- Date: 26 Jan 93 19:44:19 GMT
- References: <C16n12.LE8@ais.org> <1993Jan25.181742.26365@rayssd.ssd.ray.com>
- Sender: willner@head-cfa.harvard.edu (Steve Willner)
- Organization: Smithsonian Astrophysical Observatory, Cambridge, MA, USA
- Lines: 29
-
-
- In article <1993Jan25.181742.26365@rayssd.ssd.ray.com>,
- sgm@sgfb.ssd.ray.com (Steven G. Myerson) writes:
- > By this I mean, after (1M) - X - (2M) - 2N,
- > where 2N is a transfer to 3C, the start of a Lebensohl sequence.
- > What you lose is the ability to bid a natural 2N,
- > but how often will this come up?
-
- Bridge World Standard uses Lebensohl in the sequence weak2-double-P.
- This sequence is similar to yours in some respects: opponents are
- known to have a fit or long suit, one opponent is limited, and while
- the opponents may be strong, they need not be.
-
- However, there are significant differences. In your sequence, the
- opponents have at least 1/3 of the high cards, even if 2M can be very
- weak. Usually they will have close to half. Also, doubler was under
- less pressure after the opening one-bid, so there is a stronger
- implication of support for all suits. Finally, it wouldn't be rare,
- especially at matchpoints, for 2NT to be the right spot. Even if
- opener's suit takes five tricks, you may take all the rest, or -50 or
- -100 may beat -110's at other tables. After the two-bid, if the long
- suit runs, 2NT is probably down, and if it doesn't, 3NT probably
- makes. I don't think it would be ridiculous to play Lebensohl in
- your sequence, especially if you play undisciplined takeout doubles,
- but the case is much less compelling.
- --
- Steve Willner Phone 617-495-7123 Bitnet: willner@cfa
- Cambridge, MA 02138 USA Internet: willner@cfa.harvard.edu
- member, League for Programming Freedom; contact league@prep.ai.mit.edu
-