BBO Discussion Forums: 21-22 xy45 - BBO Discussion Forums

Jump to content

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

21-22 xy45

#1 User is offline   straube 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 4,071
  • Joined: 2009-January-18
  • Gender:Male
  • Location:Vancouver WA USA

Posted 2019-March-22, 11:56

So at some point in my auction opener is at the bid of 3C which is nf and shows a GI minor suit reverser xy45+. Opener won't have 2245 specifically.

Responder can have either GF balanced OR 0-4 any shape

So I came up with

P-content
3D-correction
3H-DN but top of range
.....3S-3 spades
.....3N-0-2 spades
3S-GF relay (up 5 steps from standard symmetric)
3N-DN but top of range and 5 hearts

This is one of my worst situations. Any suggestions?
0

#2 User is offline   rbforster 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,611
  • Joined: 2006-March-18

Posted 2019-March-23, 11:23

So the strong hands possible shapes are (31)45 (but not (40)45?), and also longer clubs like xx46 or xx47? Can your GF balanced include 5M332?
0

#3 User is offline   straube 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 4,071
  • Joined: 2009-January-18
  • Gender:Male
  • Location:Vancouver WA USA

Posted 2019-March-23, 13:31

View Postrbforster, on 2019-March-23, 11:23, said:

So the strong hands possible shapes are (31)45 (but not (40)45?), and also longer clubs like xx46 or xx47? Can your GF balanced include 5M332?



Hi Rob. Yes to both.
0

#4 User is offline   nullve 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 2,228
  • Joined: 2014-April-08
  • Gender:Male
  • Location:Norway
  • Interests:partscores

Posted 2019-March-23, 14:24

View Poststraube, on 2019-March-22, 11:56, said:

This is one of my worst situations. Any suggestions?

Since Responder can hardly stop both majors opposite a small singleton with only 0-4, maybe

P = content
3 = correction
3 = 0-4, anti-SPL S OR 8+
...3 = 3 S (5-3 S fit possible)
...3N = 2 S (6-2 S fit possbile)
...4+ = 1- S
...E.g.:
...4 = 1345 (5-3 H fit possible)
...4 = 1246 (6-2 H fit possible)
...4 = 0346 (5-3 H fit possible)
...4+ = 1147 or skewer
3 = 0-4, anti-SPL, H, not (exactly) 5 H
...3N = 2-3 H (6-2 H fit possible)
...4+ = 1- H
...E.g.:
...4 = 3145 (5-3 S fit possible)
...4 = 2146 (6-2 S fit possible)
...4 = 3046 (5-3 S fit possible)
...4 = 2047? (6-2 S fit possible)
...4N = 1147?
...5+ = (10)48 or skewer
3N = 0-4, anti-SPL H, (exactly) 5 H

?
0

#5 User is offline   straube 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 4,071
  • Joined: 2009-January-18
  • Gender:Male
  • Location:Vancouver WA USA

Posted 2019-March-23, 14:50

Anti-splinters are an interesting idea.

I was thinking to forego being able to correct to 3D. Then...

3D-relays, could have 0-4
.....3H-short spade
.....3S-3145
.....3N-2146
.....etc

3M-6M, 0-4 and nf

I can usually survive playing 3C even when responder has a diamond preference. If we need to be in diamonds, we would play at the 4-level.

I wonder about combining the 3D relay with antisplinters. I assume you mean....

3H-can't stop hearts
3S-can't stop spades but can stop hearts
3N-can stop both majors

Maybe then

3H-can't stop hearts
.....3S-can you stop spades?
.....3N-I can stop both
3S-can stop hearts but not spades
.....3N-I can stop spades

What do you think?
0

#6 User is offline   awm 

  • PipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 8,306
  • Joined: 2005-February-09
  • Gender:Male
  • Location:Zurich, Switzerland

Posted 2019-March-24, 06:55

If we assume a singleton isn't a stopper (stiff K or A maybe you can do something else anyway) perhaps:

3 relay (could still be top of 0-4 range) and then:
... 3 = 0-1, either 3 or A/K
... 3NT = 0-1, either 3 or A/K
... 4 = 0-1, at most Qx
... 4 = 1147
... 4 = 2146 with weak spades
... 4 = 2047 with weak spades

It seems like this is usually enough to place the contract provided you are willing to occasionally play 4M with 5-card suit opposite a strong doubleton (could be the best contract anyway). And you have further relays available for clarification in slam sequences, and retain 3 to play.
Adam W. Meyerson
a.k.a. Appeal Without Merit
0

#7 User is offline   straube 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 4,071
  • Joined: 2009-January-18
  • Gender:Male
  • Location:Vancouver WA USA

Posted 2019-March-24, 07:37

That caters to both possibilities. Thanks a lot.

I think you used 1C-1D, 2H as GI with 4H/5+C. Curious what minimum strength that promises. And what minimum (base) of QPs. I've thought 13.

Also, do you allow the DN hand to use the 2S relay? Say responder has Kxxxx xx xx Jxxx or xxxx Qxx x Qxxxx, a relay might find the best game on the first and get to slam on the second.
0

#8 User is offline   straube 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 4,071
  • Joined: 2009-January-18
  • Gender:Male
  • Location:Vancouver WA USA

Posted 2019-March-24, 12:54

wrong thread
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