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Simple bidding, difficult decision

Poll: so what? (28 member(s) have cast votes)

so what?

  1. pass (14 votes [50.00%])

    Percentage of vote: 50.00%

  2. 3NT (5 votes [17.86%])

    Percentage of vote: 17.86%

  3. 5 diamonds (9 votes [32.14%])

    Percentage of vote: 32.14%

  4. 3 hearts (0 votes [0.00%])

    Percentage of vote: 0.00%

  5. other (0 votes [0.00%])

    Percentage of vote: 0.00%

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#1 User is offline   Fluffy 

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Posted 2009-April-16, 15:27

AQ106
KJ96
A
A987

Match points: Nobody vul, it goes: (Pass) - 3 - (Pass)- ??
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#2 User is offline   ArtK78 

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Posted 2009-April-16, 15:32

It really depends on your partnership preempting style.

With most of my partners, this is a clear pass. Even if partner has KQxxxxx of diamonds, he won't have an outside entry. And if his diamonds are worse, then there is no possible source of 9 tricks at no trump. As for making 11 tricks in diamonds, that would require a perfect fit - something like xx Qxx KQxxxxx x (on a spade finesse for 12 tricks in diamonds assuming 3-2 diamonds and no heart ruff).

If your partnership style is to preempt with something like Kx xx KQxxxxx xx, then 3NT is easy.

I believe that the percentage call with most partners is pass.
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#3 User is online   awm 

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Posted 2009-April-16, 15:40

3NT requires partner to have running diamonds and a side entry. If partner has that, then 5 should have good play also (seven diamonds plus two aces plus partner's entry and at worst one of two finesses for trick eleven). Of course, if partner has no side entry or has non-running diamonds then 3NT is hopeless, but 5 still might have some play (give partner Kx xx KJTxxxx xx and you might make 5 without Q falling doubleton by guessing hearts).

So I think 3NT is pretty clearly wrong, and the decision is really between pass and 5. At this point it depends a little on preempting style. To make 5 really good we need opener to have KQxxxxx and an additional side card. While I would actually open 3 on that hand, I would also open 3 without the side card or with the diamond jack instead of queen assuming my spots aren't really headed by the six. So the hands where 5 is bad seem to outnumber the hands where it's good, even though I'm actually a fairly conservative preempter in second chair.

I'd go with pass, acknowledging that if opener has a maximum we could easily be on for 5.
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a.k.a. Appeal Without Merit
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#4 User is offline   rogerclee 

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Posted 2009-April-16, 15:45

3NT, thanks for putting partner in second seat at equal vul.
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#5 User is offline   mtvesuvius 

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Posted 2009-April-16, 16:29

3NT... I've gone down 4 before. Of course in 2nd Seat at Equal I expect partner to have a decent hand.
Yay for the "Ignored Users" feature!
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#6 User is offline   Phil 

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Posted 2009-April-16, 20:59

3N is crazy and is playing partner for an entry (which is a total guess) or sleeping defenders. If I were to make any move it would be 5, but we are a long way from 11 tricks.

I'll take my 110 / 130. On a good day the opponents will balance.
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#7 User is offline   jdonn 

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Posted 2009-April-16, 22:35

I'd bid 3NT, which I would be far from surprised to make with just 1 diamond trick.
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#8 User is online   mike777 

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Posted 2009-April-16, 23:14

3nt, guess.
option 2=pass
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#9 User is offline   Gerben42 

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Posted 2009-April-17, 01:27

Pass, I don't see much hope in 3NT. I'll be endplayed all the time.
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#10 User is offline   whereagles 

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Posted 2009-April-17, 03:16

In a weak field, people will be bidding 3NT, so you might want to try that as well. Maybe pard has a side entry or somefink.

In a strong field, you'll probably want to pass.
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#11 User is offline   JLOL 

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Posted 2009-April-17, 12:06

3N
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#12 User is offline   gnasher 

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Posted 2009-April-17, 12:18

I suppose I shouldn't be horrified by the votes for 3NT, but I am. What are you hoping your partner will have, and how often do you expect him to have it?
... 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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#13 User is offline   Apollo81 

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Posted 2009-April-17, 13:47

Pass. I agree with awm's thinking here.
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#14 User is offline   jdonn 

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Posted 2009-April-17, 14:22

I think the flaw in not bidding 3NT is assuming your tricks must come from diamonds. Anything LHO leads into us, as well as any outside A K Q J or even T, will add to our likely trick total. I don't worry about myself getting endplayed as much as the opponents getting endplayed every time they are on lead.
Please let me know about any questions or interest or bug reports about GIB.
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#15 User is offline   karlson 

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Posted 2009-April-17, 15:36

5 for me. I don't see why 2nd red preempts should have more outside stuff, for me they are just more pure.

I don't really understand how we're going to make this without the diamonds on hands where we can't also make 5. Example hands anyone?
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#16 User is offline   gnasher 

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Posted 2009-April-17, 16:04

karlson, on Apr 17 2009, 10:36 PM, said:

Example hands anyone?

Me too.
... 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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#17 User is offline   jdonn 

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Posted 2009-April-17, 16:25

Say partner has x Qx KQTxxxx Jxx. Lho leads a spade to the jack and queen. We play the ace of diamonds and jack of hearts, and supposing we are lucky enough to find LHO with the ace. He ducks and we play another which he wins. Maybe if I'm really in the zone then diamonds didn't break and 5 has even less chance, Etc etc etc.

9x x KQJxxxx JTx. Lho leads a spade, the 9 holds and we run a club. Etc etc etc.

3NT is not cold on layouts like these, but it has very decent odds. Even when there is a good switch to make (such as diamonds in the second example) they may not find it. Or maybe when there is a bad switch to make, such as a heart from Qx, they find that. And of course partner could simply have an entry as well, or a bad diamond suit with more outside. Say Jx Qxx QJTxxxx K we may just scramble 9 tricks from every suit. There are just so many possible ways to make. Why give up on a game that could make?
Please let me know about any questions or interest or bug reports about GIB.
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#18 User is offline   karlson 

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Posted 2009-April-17, 18:14

Quote

Say partner has x Qx KQTxxxx Jxx. Lho leads a spade to the jack and queen. We play the ace of diamonds and jack of hearts, and supposing we are lucky enough to find LHO with the ace. He ducks and we play another which he wins. Maybe if I'm really in the zone then diamonds didn't break and 5♦ has even less chance, Etc etc etc.


So now you're up to 7 tricks. They exit a heart and you're going to need some more luck even after this.

Quote

9x x KQJxxxx JTx. Lho leads a spade, the 9 holds and we run a club. Etc etc etc.


You can't get back to run the club again, and you're going to need at least 1 heart trick, playing them from your hand. Meanwhile 5 is excellent (hook the spade if they lead that, otherwise double hook clubs).

Quote

Say Jx Qxx QJTxxxx K we may just scramble 9 tricks from every suit.


Maybe, but 5 is completely cold.
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#19 User is offline   jdonn 

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Posted 2009-April-17, 18:30

On the first, I was done analyzing because it's very complicated and too many possible permutations, but I was certainly not done setting up tricks...

The second I think you have misanalyzed. A club lead against 5 leads to a very likely ruff by the opponents regardless of the club honors. In fact you would be very likely to go down on a club lead with the spade king, spade jack, heart ace, heart queen, heart ten, club king, and club queen all onside!

The third you are right 5 is very good (although he could also have worse diamonds depending who you are....). Anyway all that shows is my limitations in creating example hands very quickly at work. My point is that you don't need to run diamonds to make 3NT. Notice that on none of those hands did I give partner running diamonds with an entry, nor did I ever give him much shape.

But bidding 5 does have a lot to recommend it, but I think it's living in a perfect world where partner has KQJTxxx of diamonds and nothing outside every hand. I think passing is just way too pessimistic.
Please let me know about any questions or interest or bug reports about GIB.
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#20 User is offline   karlson 

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Posted 2009-April-17, 18:35

It's true, if they lead a stiff club on the second one against 5 and I don't read the position, I will go down.

I think the best argument for 3n is what you're alluding to later -- partner might have an entry and solid diamonds, and you'll score 630 or 660. At imps, I still think that 5 must be much better.
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