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Jump reverse or not?

Poll: Jump reverse or not? (28 member(s) have cast votes)

Opener should rebid

  1. 1sp (6 votes [21.43%])

    Percentage of vote: 21.43%

  2. 2NT (3 votes [10.71%])

    Percentage of vote: 10.71%

  3. 2sp (17 votes [60.71%])

    Percentage of vote: 60.71%

  4. other (2 votes [7.14%])

    Percentage of vote: 7.14%

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#1 User is offline   mdaw 

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Posted 2015-October-30, 07:14

Matchpoints

KJxx
AK
AQ10xx
Qx

Ax
QJ10xxx
KJ
Axx


1 - 1
?

System 2-over-1 GF.
How the further bidding should look like?
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#2 User is offline   Zelandakh 

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Posted 2015-October-30, 07:45

First of all it is not a jump reverse but a jump shift. A jump reverse would be something like 1 - 1; 3. Secondly, although it is not mainstream there are a few on BBF that play a 1 rebid here as forcing so clearly for them this would not be a 2 rebid. For the rest I would imagine this North hand would qualify. Then South can continue with 3 and North raise. South can probably just ask for key cards now and getting to a grand will probably depend on whether it can be discovered that there is no slow club loser. There are a few ways of doing that and it will obviously depend on the follow-up methods being employed.
(-: Zel :-)

Happy New Year everyone!
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#3 User is offline   fromageGB 

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Posted 2015-October-30, 08:39

Further bidding depends on methods.

Playing with a random partner with no agreements, uncertain whether 1 would be taken as forcing, 2 from N, 3 4 all natural. South continues :
4NT 5 - ace ask; 0 or 3 (I assume 3041 is the standard default)
5 5NT - K ask, as 5 would be Q ask, and 5 signoff; K shown by NT as you must keep bidding below 6
6 - uncertain whether partner would take 6 as natural, or an SSA general try for heart grand.

With a partner you are familiar with then you will have your agreed methods.
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#4 User is offline   Zelandakh 

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Posted 2015-October-30, 09:15

View PostfromageGB, on 2015-October-30, 08:39, said:

Playing with a random partner with no agreements, uncertain whether 1 would be taken as forcing, 2 from N, 3 4 all natural. South continues :
4NT 5 - ace ask; 0 or 3 (I assume 3041 is the standard default)
5 5NT - K ask, as 5 would be Q ask, and 5 signoff; K shown by NT as you must keep bidding below 6
6 - uncertain whether partner would take 6 as natural, or an SSA general try for heart grand.

After 5NT, 6 should probably be an ask for the K (with K possibly also being useful) and 6 an ask for the K. The trick playing SSAs here would be to make an SSA in diamonds instead of asking for kings. If partner has AQxxx there are 3 discards and K is unnecessary. Of course going that route does give up on the possibility of Opener holding both black kings so it is no guarantee of success. If SSAs are not being played then South can probably show K plus the remaining 2 key cards and Q, so that would be an alternative route to 7NT.
(-: Zel :-)

Happy New Year everyone!
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#5 User is offline   mdaw 

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Posted 2015-October-30, 09:30

View PostfromageGB, on 2015-October-30, 08:39, said:

Further bidding depends on methods.

Playing with a random partner with no agreements, uncertain whether 1 would be taken as forcing, 2 from N, 3 4 all natural. South continues :
4NT 5 - ace ask; 0 or 3 (I assume 3041 is the standard default)
5 5NT - K ask, as 5 would be Q ask, and 5 signoff; K shown by NT as you must keep bidding below 6
6 - uncertain whether partner would take 6 as natural, or an SSA general try for heart grand.

With a partner you are familiar with then you will have your agreed methods.


7 instead of 6 is rigth bid if you imagine North's worst possible hand. In real problem auction went:

1 - 1
2 - 3
3 - ?

North thought that 3 was a cue-bid and were agreed. South wasn't sure how to agree :)

South has bid 6 and that became the final contract. Should North bid 7 with AK A?
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#6 User is offline   Zelandakh 

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Posted 2015-October-30, 09:48

View Postmdaw, on 2015-October-30, 09:30, said:

7 instead of 6 is rigth bid if you imagine North's worst possible hand. In real problem auction went:

1 - 1
2 - 3
3 - ?

North thought that 3 was a cue-bid and were agreed. South wasn't sure how to agree :)

South has bid 6 and that became the final contract. Should North have bid 7 with these values: AK A?

7NT is right and easy to bid whenever we find out that there are 13 tricks in hearts. 3 is not a cue bid but rather showing a very distributional (6-5) hand. North has 2 ways to agree hearts, namely 4 and 4. South on the other hand should not be in any hurry to agree hearts after 3 - why play in a potential 6-0 fit off the trump AK when there is a perfectly good 6-2 fit available in diamonds? It ended up a pretty messed up auction to be honest so be happy you at least got to a reasonable contract, most likely scoring with the field I would guess.
(-: Zel :-)

Happy New Year everyone!
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#7 User is offline   mike777 

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Posted 2015-October-30, 10:26

View Postmdaw, on 2015-October-30, 07:14, said:

Matchpoints

KJxx
AK
AQ10xx
Qx

Ax
QJ10xxx
KJ
Axx


1 - 1
?

System 2-over-1 GF.
How the further bidding should look like?


I will try 2nt now

perhaps:

1d=1h
2nt=3h(checkback with only 5h)
4h=4s
4nt!=5d
5s=5nt
6d=7nt


4s-rkc in h
4nt=0-3
5d=KD grand try
5s=KS
5nt=anything else, deny KC
6d=QD
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#8 User is offline   jodepp 

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Posted 2015-October-31, 06:28

I don't think the hand is worth a jump shift to 2, on the grounds that the suits you have are full of holes. IMO a jump shift should look like:

KQJx
x
AKJ10xx
Ax

1 is enough for me on the thread hand. I can accept a 2NT rebid without totally agreeing with it.
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#9 User is offline   blackshoe 

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Posted 2015-October-31, 11:04


--------------------
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#10 User is offline   nige1 

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Posted 2015-October-31, 12:42


I rank
1. 2N = NAT. 18-19. Fairly descriptive.
2. 1 = NAT NF but rarely passed.
3. 2 = NAT. GF.

No idea how to bid 2/1. Perhaps on a very good day ...


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#11 User is offline   iandayre 

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Posted 2015-October-31, 15:02

It's true that the hand is a bit light for the 2S game forcing call, but given the C weakness it's my choice. And yes it's a jump shift, not a jump reverse.

Then after 3H - 4H, responder can BW and once all Key Cards are confirmed, with the great strength W has shown and the fitting cards in opener's first suit, 7NT stands out.
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#12 User is offline   jallerton 

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Posted 2015-November-03, 02:11

I quite like a 2NT rebid on this hand.

(a) to protect the Qx. Partner can still check back for a 4-4 spade fit. If the auction starts 1-1-2-3(4th suit forcing), what next? If you bid 3 and partner has Axx or Kxx, he probably won't risk 3 now and NT will be wrong sided.

(b) to describe the general strength of the hand (18-19). If you rebid 1 and partner passes, you'll be concerned that you may have missed game. If you rebid 2, it's fine to force to game if partner needs the traditional 6HCP to respond, but these days many people respond very light and it's nice to be able to stop in a contract you have a chance of making!
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#13 User is offline   Phil 

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Posted 2015-November-03, 09:17

No one wants to open 2N? :(
Hi y'all!

Winner - BBO Challenge bracket #6 - February, 2017.
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