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I’m Convinced – It’s Time to Dump Jacoby 2NT This hand convinced me

#21 User is offline   glen 

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Posted 2012-February-10, 13:17

I’m convinced – It’s time to dump one of the two Jacoby 2NT threads
'I hit my peak at seven' Taylor Swift
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#22 User is offline   gnasher 

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Posted 2012-February-10, 13:33

View Postmikeh, on 2012-February-10, 12:14, said:

I'd be interested in your systemic method for showing 4 hearts and 5 clubs.

In one partnership I play something based on Heeman, (but in our variant we've swapped the 5M-4m sequences with the 4M-5M ones, so this would bid 1NT-2;2-3). In other partnerships I'd transfer to clubs and then bid hearts. This type of sequence shouldn't promise a slam try. Given how many offshape 1NTs are opened nowadays, responder should be inclined to suggest alternative strains whenever he has a vaguely suit-oriented hand.

Quote

I suspect that the majority of strong 1N bidders would see a stayman response, hearts shown and now a jump to game. 2=4=2=4 with weak hearts, weak clubs and only 13 hcp doesn't look like a slam try to me.

That seems a bit pessimistic. QJ9xx doesn't look like a 4-card suit to me - it looks like four winners opposite an honour. Kxx AKJx Kxx Kxx and KQx AKJx xxx Kxx are normal 1NT openings where slam is good. If your methods allow you to make a mild try below game and then sign off, I think you should do that.
... that would still not be conclusive proof, before someone wants to explain that to me as well as if I was a 5 year-old. - gwnn
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#23 User is offline   TWO4BRIDGE 

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Posted 2012-February-10, 13:39

View Post32519, on 2012-February-10, 10:25, said:




When using an "alternative Jacoby" , I have seen that "extras" is defined as 15+ .
Alternative methods have come from Sweden: Swedish2NT or Stenberg2NT (I'm not saying they are any better than Roger's or Gwnn's ) .

1M - Alternative2NT!( which could be as weak as a limit raise )
??
.. 3C! = any minimum ( 3D! then asks shortness; 3M would show the limit raise hand w/4 cards )
.. 3D! = "extras", no shortness
.. 3H! = "extras" w/shortness
.. 3S! = "extras" w/Diam shortness
. 3NT! = "extras" w/other Major shortness
.. 4-level new suit bid = 2nd 5 card suit ( ergo shortness somewhere )

So for the given OP hand:
South....... North
1H
- Alternative2NT!

3D! ( extras, no shortness )
- 3S ( cheapest courtesy cue )

4C ( cue )
- 4D ( cue )

4S! ( kickback-RKC for )
- 5H ( 2 + Q )

5S! ( K -ask )
- 6H ( no outside K's )

pass ( Opener is concerned about no outside K's; but surprise, surprise when he sees dummy's suit )
Don Stenmark
TWOferBRIDGE
"imo by far in bridge the least understood concept is how to bid over a jump-shift
( 1M-1NT!-3m-?? )." ....Justin Lall

" Did someone mention relays? " .... Zelandakh

K-Rex to Mikeh : " Sometimes you drive me nuts " .
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#24 User is offline   32519 

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Posted 2012-February-10, 14:33

View PostP_Marlowe, on 2012-February-10, 12:47, said:

The auction you gave in bog standard 2/1 assumes that 2 showed a 5 carder.
This is certainly not the case.
What do you bid with a bal. 4333 hand, clubs being the 4 carder, and 16-17?

Besides example, which play better in a 5-3 fit than in a 5-4 fit are also not
very convincing.

Finally - Natural systems have a hard time finding low HCP slams, when a semi
bal. hands is across another semi bal. hand.
If you want to id those play Precision or something similar.

With kind regards
Marlowe


OK, you caught me out. I wasn’t using a bog standard 2/1 auction. I was using Fred Gitelman’s article titled “Improving 2/1 Game Force – Part 1.” You can find it here http://bbi.bridgebas.../fg/2over1.html
Applying Fred’s suggestions, then the 2 bid by North guarantees a 5-card suit. The double fit is now uncovered and the slam bid.

This thread is generating a lot of very interesting arguments and counter-arguments which I believe is beneficial to all. Challenging bids or conventions considered the “norm” creates 3 possibilities –
1.) The bid or convention solidifies its place in the bridge community.
2.) An improvement to the bid or convention is identified by one (or more) of the top class posters in these forums.
3.) The bid or convention is replaced by something else more effective.

Regarding point 3 above, Fred’s article may well be an example of something more effective replacing a bid or convention that is currently considered the “norm.”

We have gotten this far with this J2NT discussion. Let’s not stop now. Let’s take it to the next level. Let’s start dissecting Fred’s suggestion and see if there is any way of improving on it. Bridge continues to evolve.

None of the J2NT solutions provided found the slam.
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#25 User is offline   whereagles 

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Posted 2012-February-10, 14:43

That article is like 20 years old. It's very outdated. Ask Fred.
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#26 User is offline   fred 

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Posted 2012-February-10, 15:51

View Post32519, on 2012-February-10, 14:33, said:

None of the J2NT solutions provided found the slam.

Hopefully you realize that this is not a good reason for dumping Jacoby 2NT. You will sometimes get to the wrong spot regardless of what methods you play.

I am not even sure what you mean exactly by dumping Jacoby 2NT. I can think of 3 possible interpretations:

1) Giving up on the notion of responder having *some* way to make a direct forcing raise of a major suit opening bid that suggests at least 4-card support

I would not recommend this.

2) Giving up on the notion of using the 2NT response to a major suit opening bid as a forcing raise that suggests 4-card support (and using some other bid instead)

I am indifferent about this.

3) Giving up on the "standard" Jacoby-style rebids by opener after a 2NT forcing raise

I would recommend this (as long as you have a regular partner and both of you understand and can remember whatever you agree to).

FWIW in my regular 2/1 partnerships we use the 2NT response as a balanced game force with 2 or 3-card support and use 1H-2S and 1S-3C as our forcing raises. In my regular Precision partnerships we use 2NT as our forcing raise, but opener's rebids are not Jacoby-style.

I am certainly not claiming that the methods I prefer are "best" - my preference for them is largely a matter of comfort and familiarity (which in my experience is more important than trying to arrive at "best").

Fred Gitelman
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#27 User is offline   fred 

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Posted 2012-February-10, 16:01

View Postwhereagles, on 2012-February-10, 14:43, said:

That article is like 20 years old. It's very outdated. Ask Fred.

I haven't read it recently, but I think most of it has withstood the test of time pretty well.

Four changes that immediately spring to mind that I would make if I were to rewrite that article today (not likely to happen any time soon):

1) Suggest the possibility of using 3NT as frivolous instead of serious
2) Suggest the possibility of using 3S when hearts are agreed to say serious/frivolous and use 3NT as a spade cuebid
3) Suggest using 1NT as semi-forcing instead of forcing
4) Suggest some fancy rebid schemes for responder after 1M-1NT-2m

Fred Gitelman
Bridge Base Inc.
www.bridgebase.com
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#28 User is offline   sasioc 

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Posted 2012-February-10, 16:55

View Postgnasher, on 2012-February-10, 12:07, said:

I strongly dislike opening the South hand 1NT, but sometimes one's system compels one to do unpleasant things. I'm not convinced that 1-1;2 is a better description. Maybe we should upgrade it to 18-19, though.

Anyway, a 1NT opening might actually work well on these two hands. Responder would use his systemic method to show game-going values with four hearts and five clubs, and opener would drive slam.



Playing my own system I would upgrade it to a 17-19 NT (not sure it even counts as an 'upgrade' on that hand) and be able to open it 1 - I definitely see your point about upgrading it to 18-19. I agree that it's a hand that is desperate to play in a suit and hate having to open it 1NT but that is what I feel I have to do, for the reason that I will run into rebid problems later as my p and I have no means to cater for having opened a flat 15-17 hand anything other than 1NT (or rather, did not when we played a strong NT). As you say, sometimes one's sytem requires one to make bids that are, for want of a better word, icky.
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#29 User is offline   xxhong 

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Posted 2012-February-10, 17:33

After 1NT opening, I think 6H is still biddable.

1N(good 14 to 16) 2S(5+C suit with a side suit somewhere)
2N(C fit) 3D(4 H)
3H(accept H) 3S(cue)
4C(cue, serious slam interest) 4D(cue)
4S(RKC)...
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#30 User is offline   awm 

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Posted 2012-February-10, 20:09

Vanilla methods and up-the-line cuebidding:

1(1) - 2N(2)
3N(3) - 4(4)
5(5) - 6(6)

(1) This hand is not very notrumpy with all the points in two suits. I like 1.
(2) Jacoby.
(3) Extras, balanced, good hand for slam.
(4) First or second round control; no first or second round club control.
(5) First round control; no outside control. (*)
(6) Partner has no control in either spade or diamond, yet showed extras and a good hand for slam. A+AKJ+some queen is not enough; he should have the AK.

(*) Since responder denied a club control, any bid by opener other than 4 should show a club control. Holding only one club card plus the diamond king, 5 would be a better call here.

Obviously this implies somewhat better cuebidding inferences than casual partnerships might make. But no special methods were in use here beyond basic jacoby and up-the-line cuebidding.

I do agree that more developed versions of Jacoby are "better" than the vanillia version, and that sometimes it's better to start with a 2/1 bid when holding a five-card suit to two honors.
Adam W. Meyerson
a.k.a. Appeal Without Merit
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#31 User is offline   jdeegan 

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Posted 2012-February-10, 23:18

:P An historical note: JTB was invented about 50 years ago after a Unit game in Dallas. During the session Jake and Mary Zita came to our table and announced they were trying out a new convention whereby 3NT was a strong major raise. I was a new player at the time, and the only system I knew was K-S which used the then novel 5-card major requirement.
After the two boards were completed and before the next round was called, I mentioned to Jake that if one played 5-card majors, the only use for a natural 2NT was if one held a doubleton in the bid major, three cards in the other major, and 4-4 in the minors. One could easily handle this hand by temporizing at the 2 level in one of the minors. The rest is more or less history. I think this analysis still holds true, although the newfangled 2/1 greatly improves slam bidding on non-JTB auctions.
I also heard (second hand) that Jake once defended me by commenting that 'well, he may not be much of a player, but he has a good head for bidding theory'.
One thought does occur to me on the example hand. The SAYC maxim was that one should jump shift if slam is a laydown opposite the right minimum. This assumes that the 'right' min is not too farfetched on the bidding. Here we have a near laydown six opposite AK, AK in the round suits. This well above a minimum, but not enough to cause opener to think slammish. Maybe playing 2/1 the idea is the same. Bid the second suit rather than JTB if the right minimum or min+ will produce six.
I know this is essentially what our earlier commentators said. I'm just trying to generalize a bit and put his (whereagles and some others) acute analysis in some historical context.
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#32 User is offline   fromageGB 

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Posted 2012-February-11, 05:23

View Postkenrexford, on 2012-February-10, 12:02, said:

The idea of the 1-2-3-3 auction seems poor to me. Sure, Opener has a COV in hearts and clubs, where it seems natural and logical to raise clubs. But, although this is not a classic high reverse auction, it technically is a high-reverse auction if the 2 call includes a balanced or a fit-only option, and it is functionally similar to a high reverse sequence if partner can hold 3-4-3-3 (or similar) shape.

Because of this, I really dislike raising what is often a 4-card suit with only 3-card "support" when another option stands out, especially if the raise gets us to the three-level, and especially if the "fit" is a minor-suit fit. You have preempted the auction, your bids likely are geared toward probes, and Opener's range is wide as can be. This spells disaster.


Much as I feel reluctant to take issue with Ken on this (or anything) I feel the need to defend opener's 3 rebid. 2 is a bid made with a normal 5+ GF, and even if you do play that a strong responder with no 5 card suit (eg 2443) can also bid 2 and you have a 2 relay available so responder can bid his shape, on this hand opener has no interest in finding anything out about responder's possible hand. Moreover, he has a highly descriptive bid of 3 available. This conveys where his strength is perfectly. This does not stop responder bidding any suit or NT.

I will agree that opener will commonly have 4 cards for the 3 bid, but it is not guaranteed, and even if responder does have 4 himself it would be a strange decision to prefer the club game to a major or NT.

As Ken says, 3 is somewhat preempting the auction but with this hand your are not concerned about that. And opener's range is defined as 15/16, so hardly "wide as can be" : I would say it is a pretty descriptive bid. Of course if you did not play the version where an opener rebid above 2M was strong, then it would not be my choice either. But if it is 15/16, rather than spelling "disaster" I think it spells "accurate description to let responder decide where to go".
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#33 User is offline   gnasher 

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Posted 2012-February-11, 05:46

View Postawm, on 2012-February-10, 20:09, said:

Vanilla methods and up-the-line cuebidding:

1(1) - 2N(2)
3N(3) - 4(4)
5(5) - 6(6)

Presumably you'd get to the five-level when responder has Ax Qxxx Axxx QJx. That seems a poor idea.

Your opener doesn't have anything more than his original "Extras, balanced, good hand for slam", so I think he should sign off after 4. Responder will, of course, make another move with the originally-posted hand, because QJ9xx is worth five tricks opposite AK, and opposite one club honour the five-level should be reasonably safe. The auction will still be a bit guessy, though, because opener doesn't know how much more useful club honours are than spade honours.

Furthermore, we can't cope with the difference between Axx Qxxx Ax QJxx (excellent slam) and Ax Qxxx Axx QJxx (very poor). But not many people could do better on those in a natural framework.

This post has been edited by gnasher: 2012-February-11, 05:56

... that would still not be conclusive proof, before someone wants to explain that to me as well as if I was a 5 year-old. - gwnn
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#34 User is offline   whereagles 

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Posted 2012-February-11, 07:16

View Postfred, on 2012-February-10, 16:01, said:

I haven't read it recently, but I think most of it has withstood the test of time pretty well.


My main criticism of the 2/1 style of those articles is that there's too much emphasis on shape and little on strength. Little or nothing is said about opener's strength in auctions like

1M 2x
2M

1M 2x
3x

which can be made from a junkish 12 to a super-duper 18 or so. (Excuse me if I'm wrong, but you see, I haven't read it in a while too lol.) I prefer a style where openers 2M rebid can be made on a 5 carder, but is limited to 14 or so.
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#35 User is offline   fromageGB 

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Posted 2012-February-11, 07:29

View Postwhereagles, on 2012-February-11, 07:16, said:

My main criticism of the 2/1 style of those articles is that there's too much emphasis on shape and little on strength. Little or nothing is said about opener's strength in auctions like

1M 2x
2M

1M 2x
3x

which can be made from a junkish 12 to a super-duper 18 or so. (Excuse me if I'm wrong, but you see, I haven't read it in a while too lol.) I prefer a style where openers 2M rebid can be made on a 5 carder, but is limited to 14 or so.


View PostfromageGB, on 2012-February-11, 05:23, said:

... Of course if you did not play the version where an opener rebid above 2M was strong, then it would not be my choice either. But if it is 15/16, rather than spelling "disaster" I think it spells "accurate description to let responder decide where to go".


Exactly.
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#36 User is offline   blackshoe 

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Posted 2012-February-11, 08:18

View Postwhereagles, on 2012-February-10, 14:43, said:

That article is like 20 years old. It's very outdated. Ask Fred.

View Postfred, on 2012-February-10, 16:01, said:

I haven't read it recently, but I think most of it has withstood the test of time pretty well.

Four changes that immediately spring to mind that I would make if I were to rewrite that article today (not likely to happen any time soon):

1) Suggest the possibility of using 3NT as frivolous instead of serious
2) Suggest the possibility of using 3S when hearts are agreed to say serious/frivolous and use 3NT as a spade cuebid
3) Suggest using 1NT as semi-forcing instead of forcing
4) Suggest some fancy rebid schemes for responder after 1M-1NT-2m


I just re-read it and the two follow-on articles. I'm no expert, but they made sense to me, and I tried to keep these four changes in mind while I was reading it.

It also occurs to me that twenty years isn't necessarily all that long a time in bridge, especially considering the number of people around who are still playing methods even older than that. :P
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#37 User is offline   the hog 

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Posted 2012-February-11, 08:21

View Postmgoetze, on 2012-February-10, 10:28, said:

Thanks for informing us. But maybe you should tell your partner instead.


Eine unglaubliche intelligente Antwort.
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#38 User is offline   awm 

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Posted 2012-February-11, 10:53

View Postgnasher, on 2012-February-11, 05:46, said:

Presumably you'd get to the five-level when responder has Ax Qxxx Axxx QJx. That seems a poor idea.

Your opener doesn't have anything more than his original "Extras, balanced, good hand for slam", so I think he should sign off after 4. Responder will, of course, make another move with the originally-posted hand, because QJ9xx is worth five tricks opposite AK, and opposite one club honour the five-level should be reasonably safe. The auction will still be a bit guessy, though, because opener doesn't know how much more useful club honours are than spade honours.

Furthermore, we can't cope with the difference between Axx Qxxx Ax QJxx (excellent slam) and Ax Qxxx Axx QJxx (very poor). But not many people could do better on those in a natural framework.


This depends on exact methods a bit. There is actually an upper limit to the 3NT bid in standard jacoby (3 would've been stronger). I'd hope that a balanced 13 with no source of tricks like the example you gave might bid 4 instead of 4 opposite what is normally a 15-17 notrump with five hearts. Of course, it's conceivable that the last two hands you gave might bid 4 also (missing a good slam on Axx Qxxx Ax QJxx). But I think this is more likely than reaching the five-level with your first example.

In my view the 5 cue is basically mandatory. We have a nine-card fit and some 30+ hcp with both partners having shown extras (responder only mildly so).
Adam W. Meyerson
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#39 User is offline   bluecalm 

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Posted 2012-February-11, 11:01

Quote

I prefer a style where openers 2M rebid can be made on a 5 carder, but is limited to 14 or so.


While I play it with almost everybody as it's standard in my country I think it's bad.
At least in my country openings are usually limited to 17hcp so it's not that awful.

The reason is that you don't want to jump to 3M just because you have 15hcp and 6carder. You eat away all the space which is needed if anything for finding a fit for responder's suit.
I think there are two good solutions for this:
a)playing completely artificial scheme with one bid being minimum (say 2D) and then relay for shape to the end
b)playing that 2M is either up to 14-15hcp or strong one suited. Then relays for fit in responders suit and strenght. For example like this:

1S - 2C
2S - 2N ®
3C = exactly four clubs (then relay for shortness)
3D = exactly 3 clubs (then relay for 6th spade)
3H = 6 spades, at least 14-15hcp
3S = 6 spades but the weakest hand
3N = 5-3-3-2 exactly 12-14

After:
1S - 2C
2S - 2N
3H - 3S
3N = non serious, say 14-16
cuebid = 17+

Imagine you have AQ8xxx Ax xx AQx. What do you bid after 2C in your style ?
Imo anything but 2S is just godawful (unless it's part of some artificial scheme).
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#40 User is offline   Raff90 

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Posted 2012-February-11, 11:23

Well with that hand i prefer to bid 2 instead of 2NT.
Just because with our jacoby NT we wouldnt find the second suit fit.
And anyways we only play jacoby nt when no opps interfere or over double and 1 by opponent.
Here is our system:
1M-2NT
3 = any 5/5 or 633(1) minimum
3 = maximum single or any strong balanced hand
3 = any void
3 = single minimum
3NT = 6 card Major any strentgh
4lvl = cuebid minimum balanced
Always next step relay asking and answer in steps
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