BBO Discussion Forums: Inversions after a X - BBO Discussion Forums

Jump to content

Page 1 of 1
  • You cannot start a new topic
  • You cannot reply to this topic

Inversions after a X

#1 User is offline   the hog 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 10,728
  • Joined: 2003-March-07
  • Gender:Male
  • Location:Laos
  • Interests:Wagner and Bridge

Posted 2004-March-09, 19:40

Here is an interesting treatment my partner and I have adopted which may be of some interest:

1C (1D) 1H = 4+S, 1S = 4+H

1C (1H) X = 4+S, 1S = no 4S

1D (1H) X = S, 1S = no 4S

There are theoretical advantages to this:

Opener can rebid 1N - the strong hand is hidden
After a X opener can bid 1S, to show 3S and no stopper in the overcalled suit, or make his normal S raises. Again the opening hand is hidden.

Of course to play this, you need to be able to bid 1H on a 4+S suit after an overcall.
"The King of Hearts a broadsword bears, the Queen of Hearts a rose." W. H. Auden.
0

#2 User is offline   inquiry 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Admin
  • Posts: 14,566
  • Joined: 2003-February-13
  • Gender:Male
  • Location:Amelia Island, FL
  • Interests:Bridge, what else?

Posted 2004-March-09, 19:52

The_Hog, on Mar 9 2004, 08:40 PM, said:

Of course to play this, you need to be able to bid 1S on a 4+ card suit after an overcall.

You mean bid 1H on 4+... not bid 1S on 4+suit,,,, :D
--Ben--

#3 User is offline   the hog 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 10,728
  • Joined: 2003-March-07
  • Gender:Male
  • Location:Laos
  • Interests:Wagner and Bridge

Posted 2004-March-09, 20:10

Yes, corrected.
"The King of Hearts a broadsword bears, the Queen of Hearts a rose." W. H. Auden.
0

#4 User is offline   mishovnbg 

  • PipPipPipPipPip
  • Group: Full Members
  • Posts: 769
  • Joined: 2003-February-14
  • Location:Bulgaria, Varna
  • Interests:Bridge - new bidding systems, psyches; Computers - education, service, program; Computer games great fan :-)

Posted 2004-March-10, 02:09

Spoiler
Hi Ron!

Spoiler
I am fan of such bids as you know. They are better solution than Bocchi-Duboin transfers at 1 level, because unlike them make opps bids with master suit more difficult in competition. Of course they can dbl 1 bid with 4+ cards in , but for same bid they need more hcp and also can't distinguish between 4 and 5 cards in it. Will be nice if you can post here some examples of your play with partner, when they happen, despite of result. I am so sorry that can't play it, because my both favourite partners don't like idea of major inversion :D .
Spoiler
Misho
MishoVnBg
0

#5 User is offline   joker_gib 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,384
  • Joined: 2004-February-16
  • Location:Belgium

Posted 2004-March-10, 03:32

The_Hog, on Mar 9 2004, 08:40 PM, said:

Here is an interesting treatment my partner and I have adopted which may be of some interest:

1C (1D) 1H = 4+S, 1S = 4+H

1C (1H) X = 4+S, 1S = no 4S

1D (1H) X = S, 1S = no 4S

There are theoretical advantages to this:

Opener can rebid 1N - the strong hand is hidden
After a X opener can bid 1S, to show 3S and no stopper in the overcalled suit, or make his normal S raises. Again the opening hand is hidden.

Of course to play this, you need to be able to bid 1H on a 4+S suit after an overcall.

Hi all :)

I don't want to comment

1C (1H) X = 4+S, 1S = no 4S

1D (1H) X = S, 1S = no 4S

because in those cases I play Dbl with 4 and 1 with 5 but, don't you think that with

1C (1D) 1H = 4+S, 1S = 4+H

you give a supplementary chance to your LHO to dbl your 1 bid to show at an economic level ? :D
Alain
0

#6 User is offline   flytoox 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,606
  • Joined: 2003-June-06

Posted 2004-March-10, 05:26

The_Hog, on Mar 10 2004, 01:40 AM, said:

Here is an interesting treatment my partner and I have adopted which may be of some interest:

1C (1D) 1H = 4+S, 1S = 4+H

1C (1H) X = 4+S, 1S = no 4S

1D (1H) X = S, 1S = no 4S

There are theoretical advantages to this:

Opener can rebid 1N - the strong hand is hidden
After a X opener can bid 1S, to show 3S and no stopper in the overcalled suit, or make his normal S raises. Again the opening hand is hidden.

Of course to play this, you need to be able to bid 1H on a 4+S suit after an overcall.

In natural system, 1C opener may not be the stronger hand. Not sure if this xfer will have much advantage,if any. Suppose the opener has 44 black suit, and responder bid 1S, showing 4+H, then what do you do? How to bid your spade? Responder may have both Majors.


Fly
0

#7 User is offline   Trpltrbl 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,230
  • Joined: 2003-December-17
  • Location:Ohio
  • Interests:Sailing, cooking, bonsaitrees.

Posted 2004-March-10, 08:55

Is this based on strong 1 opening bids ? Or just any regular opening bids. I play something similair with my pd when we play weak NT's but only after X. Looks interesting.

Mike :D
“If there is dissatisfaction with the status quo, good. If there is ferment,
so much the better. If there is restlessness, I am pleased. Then let there
be ideas, and hard thought, and hard work.”
0

#8 User is offline   the hog 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 10,728
  • Joined: 2003-March-07
  • Gender:Male
  • Location:Laos
  • Interests:Wagner and Bridge

Posted 2004-March-10, 15:42

"In natural system, 1C opener may not be the stronger hand. Not sure if this xfer will have much advantage,if any. Suppose the opener has 44 black suit, and responder bid 1S, showing 4+H, then what do you do? How to bid your spade? Responder may have both Majors."

You bid 1N. This situation occurs ONLY after 1C (1D) of course.

Hi Misho, yes that is the major purpose - to make it difficult for the opps to bid that suit. We have only been playing it for a while, so do not have a lot of examples yet. Will keep you posted.
"The King of Hearts a broadsword bears, the Queen of Hearts a rose." W. H. Auden.
0

Page 1 of 1
  • You cannot start a new topic
  • You cannot reply to this topic

1 User(s) are reading this topic
0 members, 1 guests, 0 anonymous users