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Balanced Pass

#1 User is offline   nullve 

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Posted 2019-March-17, 10:18

I'm still working on the system, outlined here, where

P = "0-13 (semi)BAL"

in 1st seat NV1

The biggest problem has been to find a good structure over P-(P). My most recent idea is

P-(P)-?:

P = "7 Milton2 or less, (quasi)BAL"
1 = "10+, NAT OR 11-13/17-19/26+ BAL" (same in 1st seat in my current system)
1 = "10+, NAT unBAL OR 20-22 BAL" (same as in 1st seat)
1 = "10-21, 5+ H, unBAL" (same as in 1st seat)
1 = "8 Milton2-10" BAL OR 10-21, 5+ S, unBAL" (same as in 1st seat, but with "8 Milton-10 BAL" added)
1N = "14-16 BAL" (same as in 1st seat)
2+: preempts that also take care of "23-25 BAL" and "GF, 5+ M, unBAL" (as they do in 1st seat)

P-(P)-1-(P); -?:

P = same as opposite "10-21, 5+ S, unBAL"
1N = to play opposite 8-10 BAL, F1 opposite "10-21, 5+ S, unBAL"
...P = "8-10 BAL"
...2+ = "10-21, 5+ S, unBAL". E.g., based on what I play over 1(1st/2nd seat)-1N:
Spoiler

2+: covers most (all?) positive ("5-13") 5M(332) hands

(Or some variation of the above obtained by permuting the "8 Milton-10", "11-13 and "14-16" BAL ranges between 1, 1 and 1N.)

But radically different structures over P-(P) are possible, of course. I also think the (semi)BAL range (e.g. "0-12" vs. "0-13") matters a lot.

Questions:

1) Is

P = "0-N (semi)BAL",

as an "opening bid" in 1st or 2nd seat something you could see yourself playing, for some natural number N?

2) Is

P = "normal(ish) OR 0-N (semi)BAL" ,

as an "opening bid" in 1st or 2nd seat, something you could see yourself playing, for some natural number N above your "normal" Pass range?

3) If the answer to 1) or 2) is Yes, could you at least sketch the remaining opening structure and the responses to Pass?

1 Opening all (4441)/(5431)/(6331) or skewer hands in the "0-9" range at the 2-level in 2nd seat or in 1st seat V is too aggressive bridge even for my taste, but an alternative in those positions could be to play Pass as "normal or 11-13 (semi)BAL", with similar "responses". (See question 2).)
2 Q2 Q32 Q432 Q432 is not a "weak" hand in the sense of the WBF Systems Policy, so can be opened systemically at the 1-level without turning the system into a HUM.
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Posted 2019-March-17, 11:04

View Postnullve, on 2019-March-17, 10:18, said:

I'm still working on the system, outlined here, where

P = "0-13 (semi)BAL"

in 1st seat NV1

The biggest problem has been to find a good structure over P-(P). My most recent idea is

P-(P)-?:

P = "7 Milton2 or less, (quasi)BAL"
1 = "10+, NAT OR 11-13/17-19/26+ BAL" (same in 1st seat in my current system)
1 = "10+, NAT unBAL OR 20-22 BAL" (same as in 1st seat)
1 = "10-21, 5+ H, unBAL" (same as in 1st seat)
1 = "8 Milton2-10" BAL OR 10-21, 5+ S, unBAL" (same as in 1st seat, but with "8 Milton-10 BAL" added)
1N = "14-16 BAL" (same as in 1st seat)
2+: preempts that also take care of "23-25 BAL" and "GF, 5+ M, unBAL" (as they do in 1st seat)

P-(P)-1-(P); -?:

P = same as opposite "10-21, 5+ S, unBAL"
1N = to play opposite 8-10 BAL, F1 opposite "10-21, 5+ S, unBAL"
...P = "8-10 BAL"
...2+ = "10-21, 5+ S, unBAL". E.g., based on what I play over 1(1st/2nd seat)-1N:
Spoiler

2+: covers most (all?) positive ("5-13") 5M(332) hands

(Or some variation of the above obtained by permuting the "8 Milton-10", "11-13 and "14-16" BAL ranges between 1, 1 and 1N.)

But radically different structures over P-(P) are possible, of course. I also think the (semi)BAL range (e.g. "0-12" vs. "0-13") matters a lot.

Questions:

1) Is

P = "0-N (semi)BAL",

as an "opening bid" in 1st or 2nd seat something you could see yourself playing, for some natural number N?

2) Is

P = "normal(ish) OR 0-N (semi)BAL" ,

as an "opening bid" in 1st or 2nd seat, something you could see yourself playing, for some natural number N above your "normal" Pass range?

3) If the answer to 1) or 2) is Yes, could you at least sketch the remaining opening structure and the responses to Pass?

1 Opening all (4441)/(5431)/(6331) or skewer hands in the "0-9" range at the 2-level in 2nd seat or in 1st seat V is too aggressive bridge even for my taste, but an alternative in those positions could be to play Pass as "normal or 11-13 (semi)BAL", with similar "responses". (See question 2).)
2 Q2 Q32 Q432 Q432 is not a "weak" hand in the sense of the WBF Systems Policy, so can be opened systemically at the 1-level without turning the system into a HUM.


You might like REGGESSIONsion. It is an amazing Forcing Pass system.
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#3 User is offline   nullve 

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Posted 2019-March-17, 11:39

View Postspotlight7, on 2019-March-17, 11:04, said:

You might like REGGESSIONsion. It is an amazing Forcing Pass system.

Googling 'reggessionsion' gave 0 hits, so did you mean Regres? Yes, it's an interesting system, but unfortunately a HUM, and can therefore only be played at a handful events here in Norway.
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#4 User is offline   nullve 

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Posted 2019-March-17, 13:42

I've seen this thread before.

In post #13, rbforster describes a "P = normal or 0-14 BAL" system:

View Postrbforster, on 2009-May-23, 10:33, said:

1st/2nd:

Pass 0-9 unbalanced, or 0-14 balanced
1 strong 15+, but 18+ if balanced (ala Revision Club)
1 2+ 9-14 unbalanced 4+, or 10-12 balanced
1M 5+ 9-14
1N 15-17
2 6+ or 5/4M 9-14

3rd/4th

Pass 0-7
1 16+
1 8-15 4+ unbalanced, or 8-12 balanced (1N rebid is 10-12, pass with less)
1M 8-15 5+ (or 4+ if min and balanced)
1N 13-15
2 8-15 5+

In post #17, tysen2k describes a "P = 0-16 BAL" system:

View Posttysen2k, on 2009-December-09, 22:15, said:

Hi all!

Reviving an old post here because I haven't posted here in quite a long time.



Yes, I'm still alive. Real life has taken a great deal of my time. I haven't played much bridge in years, but decided to drop by and see how things are going...

I'm still interested in a 0-16 Pass system and while it was mostly an exercise in pushing the limits of ACBL regulations, I think it may have some merits. I don't know if it's a competative system since I've never tried it out, but I don't think it's as horrible as it looks at first glance. The important thing to remember is that you have to judge the system as a whole, not just the pass part. You could be at a disadvantage when your opening bid is a pass, but if it helps all your other bids then it should be worth it. After all, after opening 1x partner knows you have an unbalanced hand. NT rebids are therefore totally free to have new artificial meanings to help with bidding afterwards.

I think Nick's original attempt to piece together the system I was developing has a few bits from other systems that don't belong together. If I remember right, I think I had come up with something like this:

Pass = 0-16 balanced
1 = 10+ HCP, any 6+ card suit (single suiter) or any 3-suiter
1,, = 8+ (10+?) HCP, always a 2-suiter (5/4 or better). Suit bid or clubs is longest, so almost always 5+ cards (might also work with canape)
1NT = 17-21 balanced
2x = 4-9 HCP any 5+ suit (EHAA style) always unbalanced

A little wacky, but I always had wanted to give it a try. I don't think the pass is as vulnerable to preemption as some think. You should have good LoTT protection and opponents shouldn't go too crazy over it. I also had a response system to the 1 opener, but I'm not sure where it is anymore. Interference doesn't hurt it much - with a 3-suiter you have an easy double (and partner can count on 4-card support) and with a long suit, you can bid it.

Anyway, thanks for bringing back some old memories.

Tysen

This post has been edited by nullve: 2019-March-18, 13:24

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Posted 2019-March-17, 15:39

View Postnullve, on 2019-March-17, 11:39, said:

Googling 'reggessionsion' gave 0 hits, so did you mean Regres? Yes, it's an interesting system, but unfortunately a HUM, and can therefore only be played at a handful events here in Norway.


Sorry I bid hands with the man that runs

the site for over a year over a decade ago.

REGRESsion is likely closer spelling.


We played a Forcing Pass system at the local club in the late 70s.

The TD had us ask permission to play it at each table. Only

one pair declined. So we exchanged the Pass and 1C* bid and used

the same methods. :)
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#6 User is offline   rbforster 

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Posted 2019-March-17, 18:55

Nice to see some interest in this. If you look at my methods quoted above from the older thread, you should be able to swap my “0-9 any or 13-15 balanced” to “0-9 any or 10-12 balanced” pretty easily by using a 13-15 (14-16?) NT in 1-2nd instead of a 10-12 one. As you say, you’re not strictly trying to do a “pass=balanced” system where all distributional hands are preempted with 0-9 ala Lorenzo Twos or something (which is pretty crazy Vul), but just include more balanced hands in the pass.

I understand you’re trying to use your current 1-2nd methods in 3/4 as much as possible but I would suggest a slightly different approach. overloading your 1 in 3/4 by now having it possibly be 8-10 balanced (2+ spades) seems like it could lead to some bad results if passed when actually balanced (so could be a very poor fit), or when a weaker passed partner has to bid 1N semiforcing and always play 1N when they might well have a longer suit fit if the PH was unbalanced. You’re cramped on space, so outcomes will be less good, and you may also have a harder time with more important constructive auctions after a natural 1S opener in 3/4.

I would suggest using 1 to include the 8-10 balanced range instead, which I guess will need different methods than you use now, but gives you a lot more space to find a good place to play. Broadly, I would suggest natural responses to P-1, and if that opener has the 8-10 balanced they just pass 1M after P-1-1M. Then you can still play your normal methods for non pass rebids (not ideal for some passes of 1M, but simple; you could switch up your 1 rebid system to include a 1N rebid as 8-10 balanced if you want). If it goes P-1-1N, I would suggest that should promise the high end of the balanced pass range, here 11-13 balanced for your proposed system with a 14-16 NT opener. Note that bidding 1N as an 11-13 bal PH takes priority over showing 4cM with 1M, then you can just pretend it was a NT opener and play normal strong NT methods stayman etc. If you have less than 11 balanced and no 4M, you either pass 1D or bid whatever 2C/2D are over 1D by a PH if you’ve got enough of that minor. Maybe those would be 5+ suits, NF, 6-9ish, given you open 10+ unbalanced hands in 1/2nd already?

More discussion and details of my approach in this old thread:

http://www.bridgebas...cing-pass-idea/
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Posted 2019-March-18, 13:10

View Postrbforster, on 2019-March-17, 18:55, said:

If you look at my methods quoted above from the older thread, you should be able to swap my “0-9 any or 13-15 balanced” to “0-9 any or 10-12 balanced” pretty easily by using a 13-15 (14-16?) NT in 1-2nd instead of a 10-12 one.

Yes, but I quoted from the wrong post, #8 instead of #17.

The quote is correct now, but here's the one from #8 that your reply applies to:

View Postrbforster, on 2009-May-22, 12:02, said:

Hi Nick. You might take a look at a similar approach I suggested previously, using a semiforcing pass approach to handle an additional balanced range. The basic idea is that you can put one NT range into "pass" and still handle things later (i.e. 3rd/4th seat openings) reasonably well, especially if you open distributional hands light already. Whether or not this means you have 3 NT ranges (1m, 1N, pass) or just 2 ranges (1N, pass, and 1m more natural) is up to you.

For example in a mostly precision context:

1st or 2nd seat:

Pass 0-9, or 13-15 balanced
1 art 16+
1 4+ unbalanced, 9-15
1M 5+ 9-15
1N 10-12
2 9-15 6+ or 5/4M
2+ weak

3rd or 4th seat:

Pass 0-7
1 art 16+
1 2+ 8-12 balanced or 8-15 natural
1M generally 5+ 8-15 (minimum hands could be 4+, 1 with 4414)
1N 13-15
2 8-15 5+
2 4-10 6 card weak two
2M 4-10 6 card weak two

The 13-15 hand will bid Drury, P-1M-1N(semiforcing), or P-1-1N. If 3rd/4th seat has opened light with only 8-9, he can pass the latter of these or make the weakest Drury rebid. Otherwise, with 10+ opener will take another call and responder with the 13-15 NT can bid 2N as an invitation.

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Posted 2019-March-20, 13:36

View Postrbforster, on 2019-March-17, 18:55, said:

overloading your 1 in 3/4 by now having it possibly be 8-10 balanced (2+ spades) seems like it could lead to some bad results if passed when actually balanced (so could be a very poor fit), or when a weaker passed partner has to bid 1N semiforcing and always play 1N when they might well have a longer suit fit if the PH was unbalanced. You’re cramped on space, so outcomes will be less good, and you may also have a harder time with more important constructive auctions after a natural 1S opener in 3/4.

"overloading your 1 in 3/4 by now having it possibly be 8-10 balanced (2+ spades) seems like it could lead to some bad results if passed hand when actually balanced (so could be a very poor fit)"

If the auction goes

P1-(P)-12-(P)
P3-(P)

1 includes "0-13 BAL"
2 "8 Milton-10 BAL OR 10-21, 5+ S, unBAL"
3 "0-4"


and 1 Opener has "8 Milton-10 BAL", then opps must have (25)26+ hcp between them, so playing 1 on a non-fit (say, with 10 hcp, 2434 opposite 4 hcp, 2344) will likely be great.

"overloading your 1 in 3/4 by now having it possibly be 8-10 balanced (2+ spades) seems like it could lead to some bad results [...] when a weaker passed partner has to bid 1N semiforcing and always play 1N when they might well have a longer suit fit if the PH was unbalanced."

Here you're talking about the case (see questiion 2) in OP) when P in 1st or 2nd seat doesn't promise a balanced hand, but includes a normal(ish) P and thefore can be unbalanced. Then how bad the auction

P1-(P)-12-(P)
1N3-(P)-P4-(P),

1 includes "0-13 BAL"
2 "8 Milton-10 BAL OR 10-21, 5+ S, unBAL"
3 "5-13"
4 "8 Milton-10 BAL"


is depends on the types of unbalanced hands included not just in P, but in P-1; 1N. And at least in the version of a not-necessarily-balanced P I'm most interested in right now, P doesn't include very unbalanced shapes, and P-1; 1N even denies 5 H unless minimum.

So maybe the auction is comparable to a 1N(=Weak)-AP auction, which most bridge players agree tends to be good when NV and at least ok when V?

"You’re cramped on space, so outcomes will be less good, and you may also have a harder time with more important constructive auctions after a natural 1S opener in 3/4."

Compared with my current structure over P-1("10-21, 5+ S, unBAL"), I don't think (unobstructed) constructive bidding on hands where the 1 Opener is unBAL will suffer at all! But of course you'd have to know the structures in more detail to be able to agree meaningfully with that assessment.

View Postrbforster, on 2019-March-17, 18:55, said:

I would suggest using 1 to include the 8-10 balanced range instead, which I guess will need different methods than you use now, but gives you a lot more space to find a good place to play. Broadly, I would suggest natural responses to P-1, and if that opener has the 8-10 balanced they just pass 1M after P-1-1M. Then you can still play your normal methods for non pass rebids (not ideal for some passes of 1M, but simple; you could switch up your 1 rebid system to include a 1N rebid as 8-10 balanced if you want). If it goes P-1-1N, I would suggest that should promise the high end of the balanced pass range, here 11-13 balanced for your proposed system with a 14-16 NT opener. Note that bidding 1N as an 11-13 bal PH takes priority over showing 4cM with 1M, then you can just pretend it was a NT opener and play normal strong NT methods stayman etc. If you have less than 11 balanced and no 4M, you either pass 1D or bid whatever 2C/2D are over 1D by a PH if you’ve got enough of that minor. Maybe those would be 5+ suits, NF, 6-9ish, given you open 10+ unbalanced hands in 1/2nd already?

"I would suggest using 1 to include the 8-10 balanced range instead, which I guess will need different methods than you use now, but gives you a lot more space to find a good place to play. Broadly, I would suggest natural responses to P-1, and if that opener has the 8-10 balanced they just pass 1M after P-1-1M. Then you can still play your normal methods for non pass rebids"

There is of course more space after P-1 than after P-1, but here we're not obviously using the extra space as long as Opener is forced to pass any response with a balanced hand. In most cases the bidding will just go

P-1; 1M/N-P (your system)

instead of (something like)

P-1; 1N/2M-P (my proposed system).

I think yours is an interesting alternative, though, and I will consider it.

"If you have less than 11 balanced and no 4M, you either pass 1D or bid whatever 2C/2D are over 1D by a PH if you’ve got enough of that minor. Maybe those would be 5+ suits, NF, 6-9ish, given you open 10+ unbalanced hands in 1/2nd already?"

My 1 opening in 3rd seat is "10+" if unbalanced, so it looks like at least the 1 response must occasionally be made on a 3-card suit? (With 0-10 hcp, 3334, say.)
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#9 User is offline   nullve 

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Posted 2019-March-22, 14:34

From the same quote:

"If it goes P-1-1N, I would suggest that should promise the high end of the balanced pass range, here 11-13 balanced for your proposed system with a 14-16 NT opener. Note that bidding 1N as an 11-13 bal PH takes priority over showing 4cM with 1M, then you can just pretend it was a NT opener and play normal strong NT methods stayman etc."

It should be possible to do something analogous if "8 Milton-10 BAL" is in a "NAT or BAL" 1 w/ T-Walsh instead of in 1. For example, in a system with basic "Swedish" T-Walsh:

P-1; ?:

1M-1 = "4+ M"
...1M: now also with "8 Milton-10 BAL"
...(...)
1 = "no major suit, not 11-13 BAL"
1N = "11-13 BAL"
(...)

So e.g. with 10 hcp, 3424 opposite 10 hcp, 4234 the bidding could go

P-1 (includes "11-13 BAL"; "NAT or BAL")
1-1 ("4+ H, not 11-13 BAL"; includes "8 Milton-10 BAL")
1N-P

instead of

P-1 (includes "11-13 BAL"; includes "8 Milton-10 BAL")
1-P ("4+ H, not 11-13 BAL", (forced with) "8 Milton-10 BAL").

I'd have to tweak the above a lot in order to play something close to my current structure over P-1, though.
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#10 User is offline   rbforster 

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Posted 2019-March-23, 03:32

Yeah, thinking a bit more about your system I realize you’d need some tweaks to make my approach work and putting the 8-10 balanced into 1 is probably better for you and then handle it with TWalsh or an artificial 1 response or similar. The difference is that my 3/4th seat 1 is precision so all the other bids are limited and I can get away with passing a 3/4th 1/1M with hands in the 5-9 range if they don’t have a good bid while your 1 is potentially a lot stronger so those minimum responders without a major definitely need to find a response to keep the auction alive at least for one round. Am I reading your original system correctly that your 1m openers are unlimited and forcing?

I’m not sure what country / regulations you’re playing under -if it’s US/ACBL, let me know and I can try to make something work. For the US, 1m showing 3+ cards is fine for example, but that means you’d need to sometimes open 1C and sometimes 1D depending on your shape. If you tell me your passed hand responses to 1M normally 10-21 unbalanced, that might help too.

How important is your 1D opener being unbalanced? I was thinking maybe you could tweak your 3/4th TWalsh by putting the 11-13 balanced in 1D and replacing 11-13 with 8-10 in 1C. I’m not sure what your 1D-1M-1N sequence shows (20-22 balanced?) but maybe that can be 11-13 now and you bid 2N with the big hand?

Maybe something like this would work? Not a TWalsh approach, but another alterative.

P-1 10+ natural or various balanced, including all 8-10 balanced with no 5M
P-1M now 8-21 instead of 10-21, could be 8-10 balanced 5M

And after P-1:

1 0-4 any or 5-10 no 4M (this latter case has 3+ diamonds)
1M 4+ natural response, 5-10ish
1N 11-13 bal, could have 4M
2 5+ 5-9ish no 4M

Then with the 8-10 NT you maybe can get away with passing the 1D response since it’s so low and will often be a fit or opponents will have game.
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#11 User is offline   nullve 

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Posted 2019-March-24, 13:43

View Postrbforster, on 2019-March-23, 03:32, said:

Am I reading your original system correctly that your 1m openers are unlimited and forcing?

Yes.

View Postrbforster, on 2019-March-23, 03:32, said:

I’m not sure what country / regulations you’re playing under -if it’s US/ACBL, let me know and I can try to make something work.

Norway / WBF

View Postrbforster, on 2019-March-23, 03:32, said:

If you tell me your passed hand responses to 1M normally 10-21 unbalanced, that might help too.

Currently:

Spoiler


View Postrbforster, on 2019-March-23, 03:32, said:

How important is your 1D opener being unbalanced? I was thinking maybe you could tweak your 3/4th TWalsh by putting the 11-13 balanced in 1D and replacing 11-13 with 8-10 in 1C. I’m not sure what your 1D-1M-1N sequence shows (20-22 balanced?) but maybe that can be 11-13 now and you bid 2N with the big hand?

Maybe something like this would work? Not a TWalsh approach, but another alterative.

P-1 10+ natural or various balanced, including all 8-10 balanced with no 5M
P-1M now 8-21 instead of 10-21, could be 8-10 balanced 5M

And after P-1:

1 0-4 any or 5-10 no 4M (this latter case has 3+ diamonds)
1M 4+ natural response, 5-10ish
1N 11-13 bal, could have 4M
2 5+ 5-9ish no 4M

Then with the 8-10 NT you maybe can get away with passing the 1D response since it’s so low and will often be a fit or opponents will have game.

Unfortunately, the 1N rebid (containing, but not showing, 17-19 BAL and 20-22 BAL over 1-1R and 1-1M, respectively) is one of two "Gazzillis" (the 2Om rebid being the other) I use to cope with the vast 1m range, and the 2N rebid is part of an unbalanced relay structure that covers the unbalanced "22+" (GF) hands. So replacing the Gazzili-like (but still NF) 1N rebid with a natural 1N rebid would have an enormous impact on the rest of the structure.

Putting 11-13 BAL in 1 and replacing 11-13 BAL with 8-10 BAL om 1 is nevertheless what I focused on initially (see link in the OP), and I don't see why it couldn't work in the right kind of framework --- for example one where

P-?:

1 = "8 Milton-10 BAL" OR "strong"
...1 = "0-7", any
......P = the mini-NT
......1+ = "strong"
...1+ = "8+".
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#12 User is offline   rbforster 

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Posted 2019-March-26, 06:41

Thanks for the extra info on your system. Yes, there are some ways to just bail in 1 without knowing if you have a fit, but I think you can do better. Let’s suppose you want to keep your basic framework, rather than using a precision base in 3/4.

For the 5M332 hands, your Drury should handle things fine and let these 8-10 hands bail into 2M, along with any other light openers you might make in 3rd. Even with a fit opposite a 13 balanced pass (or a 9 count unbalanced fit), game seems pretty far off.

For the rest, let’s try putting them all into 1. Not sure what style of TWalsh you play, but looking at this one

http://bridge.mgoetze.net/21twalsh.pdf

It seems like you could respond the same way with 8-10 as well as 11-13 balanced hands, ie complete the transfer and then passed responder could continue if desired. The main point is that by using P-1-1N to show 11-13 balanced, possibly with a 4M, you pretty much break off all the game invitational possible hands opposite the 8-13 NT range. now when the passed hand responds 1M-1 they have at most 9 unbalanced or 10 balanced which seem like cases you’re just looking to find a good fit rather than explore for game. I guess you may have to tweak your TWalsh responses to not have 1N available (used for the strongest balanced PH). Maybe 2m is natural 5+ and limited to 9-10ish, while 1 covers balanced hands up to 10 with no 4M? or maybe you keep transfers and 1 is the weaker balanced or clubs and 2 is diamonds unbalanced?
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Posted 2019-March-27, 15:29

View Postrbforster, on 2019-March-26, 06:41, said:

I guess you may have to tweak your TWalsh responses to not have 1N available (used for the strongest balanced PH).

Yes. My T-Walsh structure is based on a trick described by helene_t in this post, allowing 1 to be forcing while also allowing the partnership to stop in 1N with (in her example) 18-20 BAL opposite 0-5(6) BAL without a major.

So maybe a less drastic solution in my structure would be play

P-1; ?:

1 = "4+ H or 12-13 BAL" (inspired by benlessard's "hearts or points"-showing 1 response to his 1 opening)
...1: includes "8 Milton-11 BAL"
......1 = "12-13 BAL" (cancels the transfer and invites game, as in benlessard's system)
......other: as before, except that 1N may now also include hands with 4S4H.
...(...)
1//N: as before (i.e. inspired by helene_t-Walsh)
(...)

Added, starting 27 August 2020:
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Posted 2020-March-08, 09:20

I just want to mention that if, in 1st/2nd seat,

P: includes "11-13 BAL"
1N = "14-16 BAL",

then the transfer accept

1-[1M-1]; 1M

obviously doesn't include any "11-13 BAL" hands. So some awkward "14-16 BAL" hands (say, those with 2245 shape, playing Crawling Stayman) could be moved from 1N into 1, and the rules for accepting the 1M-1 transfer on those hands could be as in a T-Walsh system with "11-13" NT!
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