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just another bid-the-grand

#1 User is offline   karlson 

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Posted 2010-January-25, 16:10

Scoring: IMP

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#2 User is offline   Jlall 

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Posted 2010-January-25, 16:13

1D 1S
2C 2H
3S 4D
4H 4N
5C 5H
5N 7D

would work, not sure how realistic it is.
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#3 User is offline   Fluffy 

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Posted 2010-January-25, 16:13

no chance to do it with confidence for me, I am starting 1-1-2NT faking a 3253 from south.
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#4 User is offline   whereagles 

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Posted 2010-January-25, 16:44

Would reproduce justin's auction, except that after 4NT I'd settle for 6.

7 is not unreasonable though.. either South has Q or maybe the finesse is on.

Relay precision would bid it easy lol.
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#5 User is offline   Jlall 

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Posted 2010-January-25, 16:46

whereagles, on Jan 25 2010, 05:44 PM, said:

Would reproduce justin's auction, except that after 4NT I'd settle for 6.

7 is not unreasonable though.. either South has Q or maybe the finesse is on.

Relay precision would bid it easy lol.

lol
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#6 User is offline   PFormaini 

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Posted 2010-January-25, 18:26

karlson, on Jan 25 2010, 05:10 PM, said:

Dealer: South
Vul: ????
Scoring: IMP
KJ9xx
Kxx
J8xx
A
ATx
A
AKQxx
xxxx
 

Gave my partner the SOUTH hand and this is how we bid it (PRECISION):

1 1
2 4*
4NT 5**
5NT 6***
7

*- Splinter
**- 1 or 3 Key Cards
***- 2 Key Cards WITHOUT trump Queen.

South now knows my Club Ace is singleton - and that I have both major suit Kings.

7 Diamonds is automatic.
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#7 User is offline   jdonn 

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Posted 2010-January-25, 18:36

In TOSR north has shown 5341 with 12+ points and exactly 4 controls by 3NT, so already the grand can be bid. Of course just one more ask for the queen of spades first, just in case. Bridge is easy. :)
Please let me know about any questions or interest or bug reports about GIB.
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#8 User is offline   karlson 

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Posted 2010-January-25, 18:56

Our auction was

1*-1
1*-2*
3-4N
5-5
5-6

1 was unbalanced, 1N showed a natural 2c rebid, 2h was gf.

Responder basically has to choose whether to focus in spades or diamonds after 3. 4 can give justin's auction, but of course opener can also have much worse diamonds and better clubs, in which case it would be best to play in spades, and it seems the auction will go the same way.

On our auction, responder realized that in diamonds the K would be a pitch and got strain right. Unfortunately he did not know about KQ. Opener on the other hand, could not be sure about all the keycards.
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#9 User is offline   kenrexford 

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Posted 2010-January-25, 19:00

I can't do it. I have even tried several possible auction starts, but it always breaks down because of assumptions built into structure where these holdings cannot ever mesh in time. Not only do the stiff ace and four small in a second-best suit hurt, but the double fit actually gets in the way, structurally speaking.
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#10 User is offline   Cascade 

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Posted 2010-January-25, 19:30

jdonn, on Jan 26 2010, 01:36 PM, said:

In TOSR north has shown 5341 with 12+ points and exactly 4 controls by 3NT, so already the grand can be bid. Of course just one more ask for the queen of spades first, just in case. Bridge is easy. :)

Exactly it is a trivial relay hand.
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Bidding is an estimation of probabilities SJ Simon

#11 User is online   mike777 

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Posted 2010-January-25, 20:36

maybe:


1d=1s
2c=2h!
3s=4d
4h(rkc for d)=4nt
5h(grand try)=7d

Pard cannot be worse than:


axx...a...akqx....xxxxx and will often be better.
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#12 User is offline   Codo 

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Posted 2010-January-26, 01:29

1 1
2 2 (GF)
3 4 (KC)
4 4NT (4, Queen?)
5 (yes, but no king)
7
Responder know knows 3154 with A??,A,AKQ??,????
So, there are 13 tricks if you can ruff all clubs or if partner can establish the spades after discarding one on the King of hearts, maybe he even holds the the queen of spades.
Kind Regards

Roland


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#13 User is offline   mich-b 

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Posted 2010-January-26, 01:44

Jlall, on Jan 25 2010, 05:13 PM, said:

1D 1S
2C 2H
3S 4D
4H 4N
5C 5H
5N 7D

would work, not sure how realistic it is.

I think this is an excellent sequence and perfectly realistic.

The keys to this are South's 3 showing exactly 3154 and extras, and North's
4 which is natural , and not a cue for .
North (after checking for keycards) has a perfect picture of South's hand, and can bid the grand.
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#14 User is online   mike777 

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Posted 2010-January-26, 01:59

Codo, on Jan 26 2010, 02:29 AM, said:

1 1
2 2 (GF)
3 4 (KC)
4 4NT  (4, Queen?) 
5           (yes, but no king)
          7
Responder know knows 3154 with A??,A,AKQ??,????
So, there are 13 tricks if you can ruff all clubs or if partner can establish the spades after discarding one on the King of hearts, maybe he even holds the the queen of spades.

no responder does not know opener has 5d ...

[please


see my post
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#15 User is online   mike777 

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Posted 2010-January-26, 02:00

mich-b, on Jan 26 2010, 02:44 AM, said:

Jlall, on Jan 25 2010, 05:13 PM, said:

1D 1S
2C 2H
3S 4D
4H 4N
5C 5H
5N 7D

would work, not sure how realistic it is.

I think this is an excellent sequence and perfectly realistic.

The keys to this are South's 3 showing exactly 3154 and extras, and North's
4 which is natural , and not a cue for .
North (after checking for keycards) has a perfect picture of South's hand, and can bid the grand.

again no



opener does not promise 5d...come on guys/


see my post.
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#16 User is offline   Fluffy 

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Posted 2010-January-26, 05:22

I don't think bidding 2 with the south's hand is reasonable at all. Playing 2 with an awful suit with 4 being cold doesn't look promising. Things are even worse if 2 could be 4-5.

2NT lands you into 4 whenever partner has 5 spades or 3NT otherwise. It is much more practical IMO.
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#17 User is offline   Codo 

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Posted 2010-January-26, 08:40

mike777, on Jan 26 2010, 04:59 PM, said:

Codo, on Jan 26 2010, 02:29 AM, said:

1 1
2 2 (GF)
3 4 (KC)
4 4NT   (4, Queen?) 
5            (yes, but no king)
           7
Responder know knows 3154 with A??,A,AKQ??,????
So, there are 13 tricks if you can ruff all clubs or if partner can establish the spades after discarding one on the King of hearts, maybe he even holds the the queen of spades.

no responder does not know opener has 5d ...

[please


see my post

Hmm I do not understand this. I have shown three suits, the latest with exactly three cards. How long are the first two?
Do you bid this way with 3244? Sorry, I don't and I guess nobody does, so I know that partner has at least 5 diamonds, at least 4 clubs and exactly 3 spades. And after he shows the ace of Hearts, I KNOW, that he must be 3154 Trivial.
Okay, so you open 1 Diamond with 3145. Your choice, not mine. But don't state that this is universal standard.
Kind Regards

Roland


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