BBO Discussion Forums: Who should wield the axe? - BBO Discussion Forums

Jump to content

  • 2 Pages +
  • 1
  • 2
  • You cannot start a new topic
  • You cannot reply to this topic

Who should wield the axe?

#1 User is offline   ahydra 

  • AQT92 AQ --- QJ6532
  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 2,840
  • Joined: 2009-September-09
  • Gender:Male
  • Location:Wellington, NZ

Posted 2018-April-02, 01:26

MPs, nobody vul



NS can make 110 in and so 100 was poor compensation at pairs. Who should wield the axe?

ahydra
0

#2 User is offline   jfnrl 

  • PipPip
  • Group: Members
  • Posts: 42
  • Joined: 2013-June-23
  • Gender:Male
  • Location:France (Moselle)
  • Interests:Bridge

Posted 2018-April-02, 04:27

Forcing pass auction (as opening + 2D = 23+HCP)
South's pass is correct : values for 5D or X
North must X : soft values.
0

#3 User is offline   FelicityR 

  • PipPipPipPipPip
  • Group: Full Members
  • Posts: 980
  • Joined: 2012-October-26
  • Gender:Female

Posted 2018-April-02, 05:21

Sometimes an axe shouldn't be wielded. Doubling 4 making is just as bad a score at pairs. I think the decision is more marginal than it first appears. Sometimes you just have to let a board go at pairs and recognise other pairs will be in the same contract, good or bad. Next board.
0

#4 User is offline   nige1 

  • 5-level belongs to me
  • PipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 9,128
  • Joined: 2004-August-30
  • Gender:Male
  • Location:Glasgow Scotland
  • Interests:Poems Computers

Posted 2018-April-02, 07:26

View Postahydra, on 2018-April-02, 01:26, said:


MPs, nobody vul
NS can make 110 in and so 100 was poor compensation at pairs. Who should wield the axe?

Agree with jfnr. By agreement, in normal circumstances, an opening bid and 2-level new-suit response should create a forcing-pass context. So, in the pass-out seat, North should act. Double seems best.
FelicityR is right that, from North's point of view, 4 might make, on some layouts. Bidding is not an exact science, however, and. IMO, in the long-run, such default agreements comply with the probabilities.
0

#5 User is offline   cherdano 

  • 5555
  • PipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 9,519
  • Joined: 2003-September-04
  • Gender:Male

Posted 2018-April-02, 07:29

If you think 2D establishes a forcing pass, what do you think does a minimum 2D bid look like (either with 6 diamonds, or with 5 diamonds and 4 clubs)?
The easiest way to count losers is to line up the people who talk about loser count, and count them. -Kieran Dyke
0

#6 User is offline   steve2005 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 3,175
  • Joined: 2010-April-22
  • Gender:Male
  • Location:Hamilton, Canada
  • Interests:Bridge duh!

Posted 2018-April-02, 07:30

View Postnige1, on 2018-April-02, 07:26, said:

Agree with jfnr. By agreement, in normal circumstances, an opening bid and 2-level new-suit response should create a forcing-past context. So, in the pass-out seat, North should double.
FelicityR is right that, from North's point of view, 4 might make, on a different layout, but bidding is not an exact science, and. IMO, in the long-run, it pays to have such default agreements.

Opps have a 10 card fit. How can you double and be sure you are not handing a top to NS?
You can't you got it wrong big deal.


Sarcasm is a state of mind
0

#7 User is offline   nige1 

  • 5-level belongs to me
  • PipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 9,128
  • Joined: 2004-August-30
  • Gender:Male
  • Location:Glasgow Scotland
  • Interests:Poems Computers

Posted 2018-April-02, 07:46

View Postcherdano, on 2018-April-02, 07:29, said:

If you think 2D establishes a forcing pass, what do you think does a minimum 2D bid look like (either with 6 diamonds, or with 5 diamonds and 4 clubs)?

Depends on your methods. I think it's a reasonable understanding. Helpful in many auctions.

View Poststeve2005, on 2018-April-02, 07:30, said:

Opps have a 10 card fit. How can you double and be sure you are not handing a top to NS? You can't you got it wrong big deal.

From North's point of view, opponents might have an 11-card fit. 4X might make overtricks. Story of my life :(
Alternatively, 4 undoubled might be a good sacrifice against a NS game or partscore.
IMO, at MP, most players don't double enough. I feel that double is with MP odds, here.



0

#8 User is offline   cherdano 

  • 5555
  • PipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 9,519
  • Joined: 2003-September-04
  • Gender:Male

Posted 2018-April-02, 09:41

I wasn't trying to score a rhetorical point or anything. I am genuinely curious what the minimum for a 2 bid looks like for those who advocate for a forcing pass on this auction.
The easiest way to count losers is to line up the people who talk about loser count, and count them. -Kieran Dyke
0

#9 User is offline   nige1 

  • 5-level belongs to me
  • PipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 9,128
  • Joined: 2004-August-30
  • Gender:Male
  • Location:Glasgow Scotland
  • Interests:Poems Computers

Posted 2018-April-02, 10:31

View Postcherdano, on 2018-April-02, 09:41, said:

I wasn't trying to score a rhetorical point or anything. I am genuinely curious what the minimum for a 2 bid looks like for those who advocate for a forcing pass on this auction.

Playing a strong notrump: 11 HCP or a good 10. e.g. x x x K x x A Q J x x x x.
0

#10 User is offline   cherdano 

  • 5555
  • PipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 9,519
  • Joined: 2003-September-04
  • Gender:Male

Posted 2018-April-02, 12:47

View Postnige1, on 2018-April-02, 10:31, said:

Playing a strong notrump: 11 HCP or a good 10. e.g. x x x K x x A Q J x x x x

Ok. My minimum looks more like xx xx KQJxxx Qxx or xx xx AJxxx KTxx. You wont be surprised to hear that I don't think my 2D bid generates a forcing pass!
The easiest way to count losers is to line up the people who talk about loser count, and count them. -Kieran Dyke
0

#11 User is offline   rmnka447 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 2,366
  • Joined: 2012-March-18
  • Gender:Male
  • Location:Illinois
  • Interests:Bridge, Golf, Soccer

Posted 2018-April-02, 12:58

North is looking at an 11 count opposite a 2nd seat opener. Now, if you very aggressively open so that opener can hold complete slop, it's a harder decision. But if opener opens on decent values, you've got more than the balance of the points. It looks like you've got enough, likely 23-24 count, to probably make a 3 level part score.

So this looks like an "ornery" double situation at MPs. You double in this situation not because you are sure that you can beat 4 but because you are ornery enough to believe most of the time they won't when you have the majority of the points. Holding the North hand, I'm doubling in a flash.

I think the claim that 4 x gives the opponents a top is a bit of red herring. Do you expect every other pair to be in 4 when you hold more than the balance of the points? If not, you're looking at least at a below average result by passing. So 4 x may be trading a bottom for a below average result. Big deal.

If you don't give up an occasional -590 or -790, you're not doubling enough. But here +300 is likely to be a top versus any other result.
0

#12 User is offline   nige1 

  • 5-level belongs to me
  • PipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 9,128
  • Joined: 2004-August-30
  • Gender:Male
  • Location:Glasgow Scotland
  • Interests:Poems Computers

Posted 2018-April-02, 13:07

A serious problem is that players rarely disclose "Forcing pass" agreements.
See the Demonstraby Suggested topic.
This can severely disadvantage their opponents. For example

Suppose that, after (1) 1 (2) 4 (Pass) ??,
the 1 bidder is contemplating a slam try.
If he's aware that opponents are in a forcing pass context, however, then he might well elect to pass, hoping to settle for a good score in 4X or XX.
0

#13 User is offline   ggwhiz 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 3,952
  • Joined: 2008-June-23
  • Gender:Male

Posted 2018-April-02, 14:51

Imo you must double with the north hand.

If south (known to have short hearts has some wormy 5-6 hand in the blacks, they can pull and 5 has potential. If it goes float and they make it you turned 20% into 0 at worst, or 40% into 20 etc. I don't always look both ways before crossing the street or sleep with a night light.
When a deaf person goes to court is it still called a hearing?
What is baby oil made of?
0

#14 User is offline   0deary 

  • PipPipPip
  • Group: Full Members
  • Posts: 91
  • Joined: 2017-December-22
  • Gender:Male

Posted 2018-April-03, 01:07

Norths final bid:

E/W swept to game despite our 15-19 Balancing choice in the 1C,
North cant rely on more than a couple of defensive tricks if using 11hcp/Rule 19
Qx trump might be worthless
Only sure AD
It’s likely N/S have some sort of spade fit (West didn’t X) but 4 level ain’t the time to explore it now

So it’s easy to pass

But its match points. If E/W has 4H then you are booking a poor Match points score anyway. Doubling might cost a lot of imps but only a few percentage points at MP. But if they are a trick or two short then they might make money amongst our part score minor contracts, and the best way to get our score out of the thicket is to double. I thoroughly hate it but I’d now double as North

PS I just generated a field of 12 boards, 6 in 3 minor tick, 3 in 4H tick and 2 in 4H-1, in one 4H-1 doubled then doubling increases our MP from 32% to 46%, but if they went 2 off then doubling gives 100% over the 32%
0

#15 User is offline   nekthen 

  • PipPipPipPipPip
  • Group: Full Members
  • Posts: 534
  • Joined: 2008-September-21

Posted 2018-April-03, 05:19

I do not think I am in a forcing pass situation. I agree with cherdano that you want to compete with less than 11 with a good suit. This means it is necessary for North to double. You expect partner to be providing 2 tricks for his opening and you expect 2 from your holding and no reason to suppose we have game ourselves
0

#16 User is offline   Caitlynne 

  • PipPipPipPip
  • Group: Full Members
  • Posts: 238
  • Joined: 2015-October-09

Posted 2018-April-03, 06:44

Opener has nothing extra and lacks any kind of big fit. In contrast, responder knows this deal is his/her partnership's hand - i.e., that the 2D bid was made primarily on the basis of honor values rather than extra distributional values - so responder must be the one to double. Pass was a clear cut mistake at pairs.
2

#17 User is online   Cyberyeti 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 14,316
  • Joined: 2009-July-13
  • Location:England

Posted 2018-April-03, 07:11

I'm curious that this was a really poor score, given that had opps bid only 3 it would appear they win the board whatever you do.

That said, I'm with Caitlynne, if anybody is going to double it should be responder.
0

#18 User is offline   miamijd 

  • PipPipPipPipPip
  • Group: Full Members
  • Posts: 737
  • Joined: 2015-November-14

Posted 2018-April-03, 11:54

Sometimes the field doesn't do what it is supposed to do, and as a result, you get a bad board.

This is NOT your hand; it turns out it is the opponents' hand. The last making contract is 3H by E/W. Since that is the case, any plus score your way should be fine. If you are telling me that a lot of N/S pairs got to play 3C, then you have E/W pairs with 18 HCP and a ten-fit not bidding 3 over 3 in MPs. That is insanity, but sometimes the other E/W pairs give you no protection. In a good field, +100 would be fine. It would not be 32%, as a previous poster suggested. All of the E/W pairs should bid to 3H or 4H. No one should sell to 3C.

As far as doubling goes, I would never double with either hand in a good field. There is no point. Do you think we can make 4C? Probably not. Do you think we will defeat them 2 tricks doubled looking at North's hand? Highly doubtful. So what are we protecting? Any plus score our way should be average or better. And against good opponents, I would expect 4HX to make a good deal of the time.

Cheers,
mike
1

#19 User is offline   ggwhiz 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 3,952
  • Joined: 2008-June-23
  • Gender:Male

Posted 2018-April-03, 12:46

View Postmiamijd, on 2018-April-03, 11:54, said:

This is NOT your hand; it turns out it is the opponents' hand.


If only I knew what the post-mortem would be during the auction I would win a lot more often, like always.
When a deaf person goes to court is it still called a hearing?
What is baby oil made of?
0

#20 User is online   Cyberyeti 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 14,316
  • Joined: 2009-July-13
  • Location:England

Posted 2018-April-03, 13:22

View Postmiamijd, on 2018-April-03, 11:54, said:

Sometimes the field doesn't do what it is supposed to do, and as a result, you get a bad board.

This is NOT your hand; it turns out it is the opponents' hand. The last making contract is 3H by E/W. Since that is the case, any plus score your way should be fine. If you are telling me that a lot of N/S pairs got to play 3C, then you have E/W pairs with 18 HCP and a ten-fit not bidding 3 over 3 in MPs. That is insanity, but sometimes the other E/W pairs give you no protection. In a good field, +100 would be fine. It would not be 32%, as a previous poster suggested. All of the E/W pairs should bid to 3H or 4H. No one should sell to 3C.

As far as doubling goes, I would never double with either hand in a good field. There is no point. Do you think we can make 4C? Probably not. Do you think we will defeat them 2 tricks doubled looking at North's hand? Highly doubtful. So what are we protecting? Any plus score our way should be average or better. And against good opponents, I would expect 4HX to make a good deal of the time.

Cheers,
mike


No, it's your hand, they took a NV 100 out of 4 for -2 so the limit is 3m your way, 3 is -1 for a good score for them whether doubled or not.

I would consider the pass over 4 forcing although I'd be very uncomfortable on the S hand, I'd have to X.
0

  • 2 Pages +
  • 1
  • 2
  • You cannot start a new topic
  • You cannot reply to this topic

1 User(s) are reading this topic
0 members, 1 guests, 0 anonymous users