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WBP Pairs bidding problems we got them all wrong

#21 User is offline   whereagles 

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Posted 2006-May-16, 03:55


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#22 User is offline   whereagles 

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Posted 2006-May-16, 04:04

Hum.. I just saw pard is marshall miles. I'll deliberately leave him to play 2NT on board 5. That should serve him right!

j/k B)
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#23 User is offline   han 

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Posted 2006-May-16, 06:46

FrancesHinden, on May 16 2006, 02:17 AM, said:

I eliminated this as a possible hand because it's not possible.

I like this kind of logic Frances (and I also agree with your point).

Thanks for posting these nice hands Josh, I've read all the answers now so it doesn't make sense to post mine.
Please note: I am interested in boring, bog standard, 2/1.

- hrothgar
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#24 User is offline   joshs 

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Posted 2006-May-16, 09:10

FrancesHinden, on May 16 2006, 02:17 AM, said:

jdonn, on May 16 2006, 12:02 AM, said:

2: Well done passers. The opponents are cold for 6, but about to play 3NT going down!

Dealer: ?????
Vul: ????
Scoring: Unknown
QTxxx
xxxx
x
xxx
 
QJx
Qxxx
AQJxxx
xxxx
AKx
Ax
KT9x
AKJx
xxx
KJT9xx
 
 

Obviously I can't speak for your opponents, but why are we certain West was going to pass 3NT on that hand? Traditionally the 3NT response shows 4-card club support - maybe it didn't here, but you didn't mention anything special?

Quote

5: Josh also came the closest to picking this one off, though for the life of me I can't see why partner would pass over the double with that hand, or the hand he held. KQxx QJx QT9xx J. Disaster ensued as partner and I never got on the same page, and I've still not been convinced by anyone that 2NT should mean anything.


I have to say that if these unbalanced 11-count hands are a pass after 1C x, then you should be playing redouble as artificial, because you clearly are never going to redouble.

I eliminated this as a possible hand because it's not possible.

Woops. I mis read the problem. I thought there was a 1S overcall not 1C-x. Now I have no idea why there wasn't a 1D bid or a xx....
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#25 User is offline   jdonn 

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Posted 2006-May-16, 09:37

FrancesHinden, on May 16 2006, 02:17 AM, said:

jdonn, on May 16 2006, 12:02 AM, said:

2: Well done passers. The opponents are cold for 6, but about to play 3NT going down!

Dealer: ?????
Vul: ????
Scoring: Unknown
QTxxx
xxxx
x
xxx
 
QJx
Qxxx
AQJxxx
xxxx
AKx
Ax
KT9x
AKJx
xxx
KJT9xx
 
 

Obviously I can't speak for your opponents, but why are we certain West was going to pass 3NT on that hand? Traditionally the 3NT response shows 4-card club support - maybe it didn't here, but you didn't mention anything special?

Quote

5: Josh also came the closest to picking this one off, though for the life of me I can't see why partner would pass over the double with that hand, or the hand he held. KQxx QJx QT9xx J. Disaster ensued as partner and I never got on the same page, and I've still not been convinced by anyone that 2NT should mean anything.


I have to say that if these unbalanced 11-count hands are a pass after 1C x, then you should be playing redouble as artificial, because you clearly are never going to redouble.

I eliminated this as a possible hand because it's not possible.

2) I can't say for certain that west was going to pass but it seems likely to me. I know the 3NT bid didnt show four clubs. Look he had four spades, obviously he is going to do it on any balanced hand without a major suit worth bidding. I'm sure he would do it when 3352 for example.

I think you would be hard pressed to find good pairs remaining these days who play 1 p 1NT and 1 p 3NT etc. as promising four clubs. It is disgusting and pointless to force yourself to bid 1 on hands with lousy diamonds instead of decribing the nature of your hand with a notrump bid. On this actual hand, I feel very strongly that east should make an inverted 2 raise and ignore the four tiny spades.

5) I know it's not possible. That's my point :) He does redouble on some hands, on a different hand he redoubled 1 X with Qx KQJx KQJxx xx and we got 800 from 2X. Why he didn't on this hand (or bid 1), I'll never really know.
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#26 User is offline   FrancesHinden 

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Posted 2006-May-16, 10:16

jdonn, on May 16 2006, 04:37 PM, said:

I think you would be hard pressed to find good pairs remaining these days who play 1 p 1NT and 1 p 3NT etc. as promising four clubs. It is disgusting and pointless to force yourself to bid 1 on hands with lousy diamonds instead of decribing the nature of your hand with a notrump bid.

As soon as someone supports their point of view with an argument along the lines of ...."all good pairs" "most experts" "nobody who is any good"... play a certain way I just _know_ I'm going to disagree!

Just to paraphrase: it is disgusting and pointless to respond 3NT to 1C unless the bid is extremely well-defined and allows partner to make a good decision over it. I play 1C - 3NT as 13-15, almost certainly 3334, honours in every suit, not very slam suitable. It doesn't come up very often - the last time I bid it I had something like KJx QJx AJx Kxxx. But you don't expect this type of bid to come up very often, that's the point.

Anyway, I can find a lot of good pairs who play 1C - 3NT as promising four clubs. I can find quite a lot (not necessarily the same ones) who play 1C - 1NT as promising four clubs. There are significant advantages in competition to finding out about the club fit.

Quote

On this actual hand, I feel very strongly that east should make an inverted 2 raise and ignore the four tiny spades.


We're certainly agreed that 3NT on that particular hand was horrible: far too suit-orientated a hand with too many controls. What you do instead depends on methods - I would also make an inverted raise, but then I don't play 2C as denying a 4-card major; it's quite easy to construct hands where 4S is the only or best game.

I also didn't get to see your opponents - if I knew them well enough to know that they thought that was a 3NT bid and pass, I agree that pass over 3NT is correct!
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#27 User is offline   joshs 

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Posted 2006-May-16, 14:33

If you want my opinion, which nobody ever does, playing
1m-2N INV
and thus 1m-3N as any or most 13-15 balanced hands
is among the worst agreements in bridge.

Even if its 3343 or 3334 13-15 it uses up so much space that opener never knows what to do with unbalanced, but relatively minimum, hands.
Now if its 13-15, 4333 with kings or QJ's in all 3 card suits, then it would at least be helpful, but it will not happen much and you have a problem with the other 13-15 balanced hands.
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#28 User is offline   jdonn 

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Posted 2006-May-16, 14:49

joshs, on May 16 2006, 03:33 PM, said:

If you want my opinion, which nobody ever does, playing
1m-2N INV
and thus 1m-3N as any or most 13-15 balanced hands
is among the worst agreements in bridge.

Even if its 3343 or 3334 13-15 it uses up so much space that opener never knows what to do with unbalanced, but relatively minimum, hands.
Now if its 13-15, 4333 with kings or QJ's in all 3 card suits, then it would at least be helpful, but it will not happen much and you have a problem with the other 13-15 balanced hands.

It's an awesome agreement, it sucks those opponents right in for 1400.

Ok ok you're right, it stinks.
Please let me know about any questions or interest or bug reports about GIB.
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#29 User is offline   whereagles 

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Posted 2006-May-17, 03:14

You may not like 1x-3NT to show 13-15, but I can assure you most people in Europe play like that and live happily ever after.
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#30 User is online   mike777 

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Posted 2006-May-17, 12:54

I admit with those nice controls I would have responded a pucky 1s.
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#31 User is offline   joshs 

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Posted 2006-May-17, 14:32

whereagles, on May 17 2006, 04:14 AM, said:

You may not like 1x-3NT to show 13-15, but I can assure you most people in Europe play like that and live happily ever after.

Is "happily ever after" a statement about their state of mind or their bridge results?
Going down in 3N on an easy to bid slam hand is not a good result...
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#32 User is offline   awm 

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Posted 2006-May-17, 14:38

Well I certainly would not pass holding a 0346 hand after 1-3NT. The way most people play it, the 3NT call denies a four-card major or a five-card minor. So I expect at least nine clubs between the two hands if not ten. Certainly if partner's values are mostly in spades we may not have a slam, but partner's values don't have to be locked up in a 3-card spade suit. For the most part 5 will play fine and 6 will make fairly often when partner doesn't have a lot in spades. So I think this is a clear 4 bid.

I agree that 3NT showing 13-15 balanced isn't the best bid in the world. However, I would argue that: (1) 3NT showing 16-17, which is another common agreement, is potentially even worse since you will often have slam and difficulty to explore for it (2) Removing the 3NT bid from the system entirely, or using it as a raise, leaves you with an awful lot of balanced ranges to show. You will likely end up bidding four-card minors and then manufacturing forcing bids in three-card suits fairly often with these hands, which is a style that has many weaknesses of its own. (3) Probabilistically, most 1m openings are 12-14 notrumps. Opposite these hands, the direct 3NT bid is often the best contract and gives the defense a minimum of information.
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#33 User is offline   joshs 

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Posted 2006-May-17, 15:31

I would have said that 16-17 gives you 4N safety, so you can much more safely bid your distributional hands over a 3N bid that shows 16-17 (since you are able to stop in 4N when partner has your shortage well taken care of).

Also,
With:
- QJx Qxxx AQJxxx
KQx Kxx kxx Kxxx

3N is slightly better than a 50% contract.
4N is slightly better than a 0% contract.
5C is slightly better than a 5% contract

You have 3 levels of bidding available to figure out where you belong, but instead you pre-empt yourself by bidding 3N and forcing your side to guess. If you bid over 3N and this is the mesh, you have just turned your good contract into a bad contract.

Good constructive bidding is all about getting to the best contract most of the time and a reasonable contract the rest of the time. I don't think playing 5C with the above two hands qualifies as reasonable and neither does playing 3N when the 3N bidder has Qxx Kxx AKx Kxxx. Yes I have sympathy when a pairs methods forces them into an unreasonable contract, but if those methods don't solve lots of other problems to compensate for these losses...

I would define an unreasonable contract as one that:
a. has close to no play
b. some other game level or higher contract is making
c. the other game contract is easy to bid, using relatively simple methods

getting to 3N instead of 4H on
Axxx AKxx Qx Kxx
Kxx QJx Jx AQxx

Is not what I mean by an unreasonable contract.
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#34 User is offline   Codo 

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Posted 2006-May-17, 15:50

Hi Josh,

as always a hand does simply prooves nothing.

If you are able to find out, that your example hand
QJx Qxxx AQJxxx
KQx Kxx kxx Kxxx
must be played in 3 NT but this hand
-,QJx Qxxx AQJxxx
Axx Kx kxx Kxxxx

must be played in 5 club, you need quite many tools to find this out.

And: Statistically, you simple win, if you find a tool, that helps bidding the more frequent hands (weak NT Hands) very effective.
1 Club 3 NT makes it much more difficult to lead the best suit for the defenders as long bidding sequence.
Kind Regards

Roland


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More system is not the answer...
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#35 User is offline   joshs 

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Posted 2006-May-17, 16:36

Codo, on May 17 2006, 04:50 PM, said:

Hi Josh,

as always a hand does simply prooves nothing.

If you are able to find out, that your example hand
QJx Qxxx AQJxxx
KQx Kxx kxx Kxxx
must be played in 3 NT but this hand
-,QJx Qxxx AQJxxx
Axx Kx kxx Kxxxx

must be played in 5 club, you need quite many tools to find this out.

And: Statistically, you simple win, if you find a tool, that helps bidding the more frequent hands (weak NT Hands) very effective.
1 Club 3 NT makes it much more difficult to lead the best suit for the defenders as long bidding sequence.

Thats right one hand proves nothing. My claim is that this treament gains on close to 0 hands, and loses on a substantial amount. Not only do the 1m-3N auctions suck, the 1m-2N(INV) auctions also sucks, since the auctions:
1C-2N-3C
1D-2N-3C
1D-2N-3D can be given only one meaning (either forcing or not forcing) and when ever you hold the other hand you are stuck.

You in fact only have al ong auction and give information to the opponents when you are not sure where you belong. The auction 1m-2N-3N provides no particular information about what suit to lead other than
a. you knew what you were doing so less reason to make an extremely agressive lead on the hope that you are off the entire suit.
If responder wanted to gamble 3N on occasion with an unbalanced hand just to keep the opps on his toes, well that might be a good mixed strategy, although its not my taste.

In the US at least, the proliferation of 1m-2N INV started with players misunderstanding what the 2/1 system was, and thinking that since 2/1's were game forcing over 1M, 2C should be game forcing over 1D. But there is a huge difference between those auctions, and that is the forcing NT.

In Britian, traditional ACOL is a profoundly unscientific system with lots of limit bids. The players didn't mind getting to horrible contracts as long as they got there quickly (its certainly better than getting to horrible contracts slowly...)


My example hands are both very easy to bid in standard american bidding (which incudes most 2/1 systems). They start:
1C-2N (balanced, game forcing)-3D
on the first hand (KQX Kxx Kxx Kxxx) responder bids 3S and opener bids 3N (or responder can just bid 3N since opposite a stiff heart his K would be wasted in a suit contract).

On the second hand with Qxx Kxx AKx Kxxx responder should bid 3H (his K is wasted opposite a stiff) or 4C over 3D.

In your example hand,
Axx Kx Kxx Kxxxx
Thats a forcing club raise, not a NT bid, so it doesn't matter what your NT ranges are.
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#36 User is offline   whereagles 

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Posted 2006-May-18, 01:51

joshs, on May 17 2006, 08:32 PM, said:

whereagles, on May 17 2006, 04:14 AM, said:

You may not like 1x-3NT to show 13-15, but I can assure you most people in Europe play like that and live happily ever after.

Is "happily ever after" a statement about their state of mind or their bridge results?
Going down in 3N on an easy to bid slam hand is not a good result...

I'm not talking about this particular hand (which btw would be bid 1C-1S). I'm talking in general, and yes, europeans are pretty satisfied with the results.
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