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What is 4NT in this bidding?

Poll: What is 4NT in this bidding? (29 member(s) have cast votes)

What is 4NT?

  1. Blackwood asking for aces only (0 votes [0.00%])

    Percentage of vote: 0.00%

  2. RKCB for spades (21 votes [72.41%])

    Percentage of vote: 72.41%

  3. RKCB for clubs (0 votes [0.00%])

    Percentage of vote: 0.00%

  4. To play (0 votes [0.00%])

    Percentage of vote: 0.00%

  5. Quantitative (4 votes [13.79%])

    Percentage of vote: 13.79%

  6. Others (4 votes [13.79%])

    Percentage of vote: 13.79%

Is 4NT an overbid?

  1. yes (16 votes [55.17%])

    Percentage of vote: 55.17%

  2. no (10 votes [34.48%])

    Percentage of vote: 34.48%

  3. Others (3 votes [10.34%])

    Percentage of vote: 10.34%

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#1 User is offline   scarletv 

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Posted 2014-December-17, 05:20



Playing with a pickup partnership in BBO tourney
IMPs
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#2 User is offline   eagles123 

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Posted 2014-December-17, 05:33

in my experience, with a bbo random 4nt is pretty much always blackwood regardless of context.
"definitely that's what I like to play when I'm playing standard - I want to be able to bid diamonds because bidding good suits is important in bridge" - Meckstroth's opinion on weak 2 diamond
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#3 User is offline   mgoetze 

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Posted 2014-December-17, 05:59

I normally end up voting "quantitative" on these questions but in this case it seems it should clearly be RKCB for spades.
"One of the painful things about our time is that those who feel certainty are stupid, and those with any imagination and understanding are filled with doubt and indecision"
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#4 User is offline   Jinksy 

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Posted 2014-December-17, 09:04

I think quantitative, because you have other ways of agreeing s, and you're a limited hand opposite unlimited, so don't want to captain unnecessarily. You could have rebid 3N instead of 3, or 4 directly, or 4 over 3, so your hand can't be that single-suited, which makes 4 now a cue in my book. If you wanted to support s, you could have done so a round earlier, so I think 4 now would also be a cue (though less confident about this than the two surrounding bids). 4 is obviously not natural. Even if you think 4m should be natural, that would surely make 4 some sort of Last Trainy bid, so you're covered for all hands except semi-fitting maxes.

If it were RKCB, I think it would be a huge overbid, since P hasn't promised any source of tricks, just a hand with (at least) enough values to scrape for game. As quant, I think it's better, but still too much for me. Your sources of tricks look likely to be beset by entry problems. P likely has a stiff or worse opposite. He might not even have a sixth if he wants to keep 3N in the picture. The only plausible slam looks like 6, but if P's not strong enough to bid over 3N himself, that's probably no better than on a finesse and possibly much worse.

It being a BBO random doesn't help, but I'll bid 3N and hope S can recover from completely misbidding his hand thus far.
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#5 User is offline   gordontd 

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Posted 2014-December-17, 09:07

I don't like the 3H bid: it end-plays partner into bidding 3S with worse spades and a much worse hand than the one held.
Gordon Rainsford
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#6 User is offline   whereagles 

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Posted 2014-December-17, 09:20

in pick up: 4NT = blackwood
in serious: 4NT = probably quantitative
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#7 User is offline   Jinksy 

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Posted 2014-December-17, 09:31

View Postgordontd, on 2014-December-17, 09:07, said:

I don't like the 3H bid: it end-plays partner into bidding 3S with worse spades and a much worse hand than the one held.


Good point. N has an easy 3N. But S has no business bidding 3 and giving him the chance.
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#8 User is offline   whereagles 

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Posted 2014-December-17, 10:23

For the record, my bidding would be

1 1
3 3 ( -- ; 6 carder)
4 4NT (spade fit & cue ; RKCB spades)
5 5NT ( -- ; trying a grand.. any extras?)
6 6/7 (a good club suit ; meh/I feel lucky)
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#9 User is offline   helene_t 

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Posted 2014-December-17, 10:40

Quantitative is impossible. North showd his strength with the 3 bid. If he wants to bid notrumps (which he probably should), 3NT is fine.

RKC is not much better since North can't know if South has any slam interest at all. If he really has that great spade support he could have supported spades on the previous round istead of torturing partner with a vague 3 bid.

It looks like both partners are afraid being passed in a partscore and therefore keep making bids which are unhelpful but at least unlikely to be passed. This is a reasonable attitude when playing with a random who may not know which bids are forcing in standard methods. So I can sort of understand the 3 bid. But North should not be afraid of bidding 3NT on his 3rd turn. If South passes this it should be fine. Of course, 3NT gives South a problem with this particular hand.
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#10 User is offline   scarletv 

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Posted 2014-December-17, 17:08

This is how the bidding continued ...


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#11 User is offline   mgoetze 

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Posted 2014-December-17, 17:13

I guess 7NT is just South's way of saying "this may be the first time we are playing together, partner, but I hope it is also the last time!"
"One of the painful things about our time is that those who feel certainty are stupid, and those with any imagination and understanding are filled with doubt and indecision"
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#12 User is offline   jallerton 

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Posted 2014-December-17, 17:55

View Postmgoetze, on 2014-December-17, 05:59, said:

I normally end up voting "quantitative" on these questions but in this case it seems it should clearly be RKCB for spades.


I normally end up voting "quantitative" on these questions but in this case the auction should not exist. RKCB for spades makes no sense either when Opener limited his hand and then could not give preference to 3. The previous few bids have been searching for strain.

The only plausible meaning I can think of for 4NT is a good 5 bid: in this context probably a singleton heart and a very good club suit (say a 2137 shape) would make most sense.
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#13 User is offline   PhilKing 

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Posted 2014-December-17, 18:55

3 was quantitive. 4NT does not exist.

North should bid 3NT over 3 but the 3 bid itself looks odd - South should rebid spades (assuming a force of 2 was not available on the first round) and then bid 4 over 3 or 3NT.
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#14 User is offline   neilkaz 

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Posted 2014-December-17, 19:35

I must not be looking at the same hands as those who've voted "no" for 4NT being an overbid! Just what has South done in this auction to show anything more than a bit of extra strength by not passing 3?
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#15 User is offline   neilkaz 

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Posted 2014-December-17, 19:37

View Postmgoetze, on 2014-December-17, 17:13, said:

I guess 7NT is just South's way of saying "this may be the first time we are playing together, partner, but I hope it is also the last time!"

Gee...not bidding 7 in case a or two needs to be ruffed to establish the suit didn't cost much, did it? :lol:
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#16 User is offline   rmnka447 

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Posted 2014-December-17, 22:22

As others have said, no fit has been established and partner has already limited his hand, so 4 NT can't be quantitative. It must be RKCB
for . I think opener can't be sure what responder's hand is, so $ NT seems an overbid.

It seems to me if partner takes control of the auction with 4 NT then he sets the final contract. It might be embarrassing if partner shows up with something like x AJ10 Kx AK10xxxx and 7 doesn't make.
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#17 User is offline   neilkaz 

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Posted 2014-December-17, 22:37

View Posteagles123, on 2014-December-17, 05:33, said:

in my experience, with a bbo random 4nt is pretty much always blackwood regardless of context.

Yep
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#18 User is offline   helene_t 

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Posted 2014-December-18, 03:18

7nt is ok on the logic that south has twice as many hcps than he promised and North bidding can only mean that he found two extra aces since his 3c bid
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#19 User is offline   P_Marlowe 

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Posted 2014-December-18, 06:43

View PostJinksy, on 2014-December-17, 09:04, said:

I think quantitative, because you have other ways of agreeing s, and you're a limited hand opposite unlimited, so don't want to captain unnecessarily. You could have rebid 3N instead of 3, or 4 directly, or 4 over 3, so your hand can't be that single-suited, which makes 4 now a cue in my book. If you wanted to support s, you could have done so a round earlier, so I think 4 now would also be a cue (though less confident about this than the two surrounding bids). 4 is obviously not natural. Even if you think 4m should be natural, that would surely make 4 some sort of Last Trainy bid, so you're covered for all hands except semi-fitting maxes.


The claim, that you have other ways to support spade in a pickup partnership gets contradicted in the following sentences, claiming
that you should use Last Train undiscussed is ...
With kind regards
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#20 User is offline   P_Marlowe 

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Posted 2014-December-18, 06:47

View Postneilkaz, on 2014-December-17, 19:35, said:

I must not be looking at the same hands as those who've voted "no" for 4NT being an overbid! Just what has South done in this auction to show anything more than a bit of extra strength by not passing 3?

How about the delayed 3S bid? Could this be interpreted as a slam trial? It can, it may not be, but it can be interpreted that way.
With kind regards
Uwe Gebhardt (P_Marlowe)
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