Simple bidding, difficult decision
#1
Posted 2009-April-16, 15:27
♥KJ96
♦A
♣A987
Match points: Nobody vul, it goes: (Pass) - 3♦ - (Pass)- ??
#2
Posted 2009-April-16, 15:32
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.
#3
Posted 2009-April-16, 15:40
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♦.
a.k.a. Appeal Without Merit
#5
Posted 2009-April-16, 16:29
#6
Posted 2009-April-16, 20:59
I'll take my 110 / 130. On a good day the opponents will balance.
Winner - BBO Challenge bracket #6 - February, 2017.
#7
Posted 2009-April-16, 22:35
#10
Posted 2009-April-17, 03:16
In a strong field, you'll probably want to pass.
#12
Posted 2009-April-17, 12:18
#14
Posted 2009-April-17, 14:22
#15
Posted 2009-April-17, 15:36
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?
#16
Posted 2009-April-17, 16:04
karlson, on Apr 17 2009, 10:36 PM, said:
Me too.
#17
Posted 2009-April-17, 16:25
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?
#18
Posted 2009-April-17, 18:14
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So now you're up to 7 tricks. They exit a heart and you're going to need some more luck even after this.
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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).
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Maybe, but 5♦ is completely cold.
#19
Posted 2009-April-17, 18:30
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.
#20
Posted 2009-April-17, 18:35
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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