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Fake Jumpshift

#21 User is offline   gnasher 

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Posted 2008-February-01, 03:04

The consensus seems to be that over 4C:
- 4S is natural, showing three-card support and perhaps not real clubs
- 4D is natural, showing a strong one-suiter and not real clubs

That seems reasonable, but it's not terribly satisfactory if you happen to have clubs and want to make a slam try. Would 4H promise a heart control? If so, what do you do when you don't have one?
... 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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#22 User is offline   P_Marlowe 

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Posted 2008-February-01, 03:15

gnasher, on Feb 1 2008, 04:04 AM, said:

The consensus seems to be that over 4C:
- 4S is natural, showing three-card support and perhaps not real clubs
- 4D is natural, showing a strong one-suiter and not real clubs

That seems reasonable, but it's not terribly satisfactory if you happen to have clubs and want to make a slam try. Would 4H promise a heart control? If so, what do you do when you don't have one?

If you dont have a clear bid, you need to
improvise.

Usually you will bid 4D, this bid shows a strong
suit, and if you happen to play 4D as one-suiter,
than partner is expected to make a cue bid on
the basis that diamonds are agreed.

And partner should be able to make at least
one cue bid, after all 4C is, compared to 5C,
a forward going bid.

With kind regards
Marlowe
With kind regards
Uwe Gebhardt (P_Marlowe)
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#23 Guest_Jlall_*

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Posted 2008-February-01, 03:33

gnasher, on Feb 1 2008, 04:04 AM, said:

The consensus seems to be that over 4C:
- 4S is natural, showing three-card support and perhaps not real clubs
- 4D is natural, showing a strong one-suiter and not real clubs

That seems reasonable, but it's not terribly satisfactory if you happen to have clubs and want to make a slam try.  Would 4H promise a heart control?  If so, what do you do when you don't have one?

If you don't have a heart control you are very unlikely to have a hand that is too big to just bid 5C. I mean, really, think how big your hand would need to be. You have already jumpshifted, and you have xx in hearts or something. If you do happen to have the complete nuts your hand will probably be good enough to know that partner (who's 4C bid will not be a terrible hand for slam) must have one. Yes, this can cause problems, but from my point of view it is our of NECESSITY that 4S and 4D are natural, and that these bids are far more important than if you have some rare hand that is huge even in context of a jumpshift but that has no heart control.

If you are worried that much about it and you are playing with a regular partner you can use 4N in these auctions as a slam try rather than keycard and just give up on keycard. A lot of good partnerships do that in minor suit slam auctions where there is no room to jump to 4N.

oh and btw (warm+fuzzy moment) I really enjoy your posts and hope you continue to post a lot.
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#24 User is offline   gnasher 

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Posted 2008-February-01, 06:10

Jlall, on Feb 1 2008, 10:33 AM, said:

oh and btw (warm+fuzzy moment) I really enjoy your posts and hope you continue to post a lot.

Thanks - warm glow duly received. It's nice to have found somewhere where the discussion is both of a good standard and free of personal attacks.
... 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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#25 User is offline   dake50 

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Posted 2008-February-01, 09:14

best EVA = Expert View After ? Yes?
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#26 User is offline   skjaeran 

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Posted 2008-February-01, 10:58

gnasher, on Feb 1 2008, 10:04 AM, said:

The consensus seems to be that over 4C:
- 4S is natural, showing three-card support and perhaps not real clubs
- 4D is natural, showing a strong one-suiter and not real clubs

That seems reasonable, but it's not terribly satisfactory if you happen to have clubs and want to make a slam try. Would 4H promise a heart control? If so, what do you do when you don't have one?

In that context I'd say 4 should be some sort of last train - a strong raise to 5, not guaranteeing a control.
Kind regards,
Harald
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#27 User is offline   whereagles 

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Posted 2008-February-01, 14:59

Hannie, on Feb 1 2008, 12:45 AM, said:

1. Is this how you would have bid the hand too?

2. Is 4S clearly natural?

1. No. Sorry, but I hate fake jump shifts. Prefer either open 2 (eventhough that's death-penalty around here) or an under(re)bid of 3.

2. I think it CAN be natural, but it sure isn't CLEARLY natural (in my opinion, ofc).
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#28 User is offline   han 

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Posted 2008-February-01, 15:20

whereagles, on Feb 1 2008, 03:59 PM, said:

1. No. Sorry, but I hate fake jump shifts. Prefer either open 2 (eventhough that's death-penalty around here) or an under(re)bid of 3.

I have sympathy for opening 2C, this is a very strong hand. I don't understand rebidding a non-forcing 3D with this, I think it is nuts.
Please note: I am interested in boring, bog standard, 2/1.

- hrothgar
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#29 User is offline   whereagles 

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Posted 2008-February-01, 15:22

Hannie, on Feb 1 2008, 09:20 PM, said:

whereagles, on Feb 1 2008, 03:59 PM, said:

1. No. Sorry, but I hate fake jump shifts. Prefer either open 2 (eventhough that's death-penalty around here) or an under(re)bid of 3.

I have sympathy for opening 2C, this is a very strong hand. I don't understand rebidding a non-forcing 3D with this, I think it is nuts.

Well, what can you do? There are hands that are too strong for 1m-3m and too weak for a strong 2. Acol or SEF open those hands a strong 2, but in US bidding systems you're kinda screwed...
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#30 User is offline   han 

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Posted 2008-February-01, 15:23

Yeah we Americans are screwed, that's why we lose at bridge.
Please note: I am interested in boring, bog standard, 2/1.

- hrothgar
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#31 User is offline   benlessard 

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Posted 2008-February-01, 17:07

Quote

I'm very unfond (is that a word) of fake jumpshifts so I try to get anyone who I can convince to play some gadget that avoids the whole issue (and at hardly any cost too!).

The hand is a bit light for me to open 2♣, so your hand type is basically shoved under the carpet in anything close to "standard".

So now that you ask, this is probably how you bid the hand in standard. Lose 11.


If by some gadget your are reffering to 2Nt (artGF) you are going to bid that on more then 50% of all the GF hands.

Lets say
1D----1S
???

your forcing bids are

2H,3C,3H,4C,4D & maybe 2Nt

Most of the TOUGH GF hands will be based of a 3 card support for partner or hand unsuitable for a splinters.

3163,3361,3262 & many 7er carder.

The 2nd group is very long D.

The 3rd group is true strong 2 suiters

The 4th is balanced hand with lack of stoppers honnor concentration.

EASY hands like splinter or 64 hands with fit with partner are discarded.

So do you think it make more sense to use 2NT as catch all bids ?
From Psych "I mean, Gus and I never see eye-to-eye on work stuff.
For instance, he doesn't like being used as a human shield when we're being shot at.
I happen to think it's a very noble way to meet one's maker, especially for a guy like him.
Bottom line is we never let that difference of opinion interfere with anything."
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#32 User is offline   whereagles 

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Posted 2008-February-01, 17:32

Hannie, on Feb 1 2008, 09:23 PM, said:

Yeah we Americans are screwed, that's why we lose at bridge.

look.. whatever. I was trying to have a serious conversation, but apparently you're not interested.
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#33 User is offline   han 

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Posted 2008-February-01, 18:00

Don't take me too seriously please. Oh wait, nobody does anyway. :)
Please note: I am interested in boring, bog standard, 2/1.

- hrothgar
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#34 User is offline   whereagles 

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Posted 2008-February-01, 18:26

well.. problem with the internet is that humor/sarcasm sometimes is hard to get through.. lol :)
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#35 User is offline   the hog 

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Posted 2008-February-01, 19:08

I posted this before. You might be interested in looking at this gadget which we played. It is part of Strefa. The 2NT bid is always a gf and not necessarily balanced.

{Btw just re read some of these posts. I would love to put BLessard in a 4-2 fit at the 5 level after one of his lovely fake suit bids.}

1♦ 1♠
2N GF, no side suit (if long D, not necessarily balanced)
3C relay
3D 6+D, does not deny 3M
3M 3-cards, 5332
3oM singleton
3N 533-2M


1♦ 1M
2N 3D encouraging, D fit (3M = cue, 4D = minorwood)
3M 6+ suit
4M 6+ 1-loser suit, nothing special on the side
JS splinter for D

1♥ 1♠
2N Artificial GF with no side suit, maybe not balanced, maybe 4S-5H-2-2
3C Relay
3D short ¨, 6+H, maybe 3S
3H 6+H, maybe 3S
3S 5H-3ª-3-2
3N 2533 exactly
4m 20-21 4S-5H-2-2 cue-bid
4H 17-20 7+ very good H
4S 18-19 4S-5H-2-2
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#36 User is offline   jdonn 

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Posted 2008-February-01, 19:51

The fake jump shift thing doesn't really bother me at all. All this stuff after 2NT rebids is surely nice, but I've never found any other way to handle 18-19 balanced that I can tolerate. The auctions after a fake jump shift are generally fine, notwithstanding the hand in the thread in which case rebidding 3 is in fact your best chance to find slam, as per Justin's posts.
Please let me know about any questions or interest or bug reports about GIB.
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#37 User is offline   Fluffy 

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Posted 2008-February-02, 05:05

Forget about artificial 2NT rebids, what's wrong with a natural 2NT rebid?, I think the disadvantages are far less than the ones from a 3 rebid.
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#38 User is offline   benlessard 

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Posted 2008-February-02, 23:56

Quote

Btw just re read some of these posts. I would love to put BLessard in a 4-2 fit at the 5 level after one of his lovely fake suit bids.


The feeling i get from reading your post is that when when you play in a 4-2 fits its a bidding accident and you are probably going to lose 10-12 on the board. But i can tell you that when i play in a 4-2 fit its usually because its a better contract then a 3nt with a suit wide open and ive got some chance of winning 10-12 imps. I can assure you that my 4-2 fits contracts are quite different then your 4-2 fits contracts.
From Psych "I mean, Gus and I never see eye-to-eye on work stuff.
For instance, he doesn't like being used as a human shield when we're being shot at.
I happen to think it's a very noble way to meet one's maker, especially for a guy like him.
Bottom line is we never let that difference of opinion interfere with anything."
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#39 User is offline   cherdano 

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Posted 2008-February-03, 00:40

Fluffy, on Feb 2 2008, 05:05 AM, said:

Forget about artificial 2NT rebids, what's wrong with a natural 2NT rebid?, I think the disadvantages are far less than the ones from a 3 rebid.

I really don't understand how it helps to sell AQx x AKQJxx ATx as a balanced hand after 1D 1S, even when your 2N rebid is GF.
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#40 User is offline   jdonn 

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Posted 2008-February-03, 01:58

cherdano, on Feb 3 2008, 01:40 AM, said:

Fluffy, on Feb 2 2008, 05:05 AM, said:

Forget about artificial 2NT rebids, what's wrong with a natural 2NT rebid?, I think the disadvantages are far less than the ones from a 3 rebid.

I really don't understand how it helps to sell AQx x AKQJxx ATx as a balanced hand after 1D 1S, even when your 2N rebid is GF.

I agree. I mean if that's your (generic your, not cherdano-your) plan you might as well raise spades. Either partner has five spades, or he has at most three hearts, in either case it's hard to see wanting to play in notrump.
Please let me know about any questions or interest or bug reports about GIB.
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