BBO Discussion Forums: Serious error? - BBO Discussion Forums

Jump to content

  • 5 Pages +
  • « First
  • 2
  • 3
  • 4
  • 5
  • You cannot start a new topic
  • You cannot reply to this topic

Serious error?

Poll: Serious error? (38 member(s) have cast votes)

How do you rate double?

  1. Automatic (10 votes [26.32%] - View)

    Percentage of vote: 26.32%

  2. OK (7 votes [18.42%] - View)

    Percentage of vote: 18.42%

  3. Neither good nor bad (3 votes [7.89%] - View)

    Percentage of vote: 7.89%

  4. Slighty flawed (9 votes [23.68%] - View)

    Percentage of vote: 23.68%

  5. Serious error (9 votes [23.68%] - View)

    Percentage of vote: 23.68%

Vote Guests cannot vote

#61 User is offline   PhilG007 

  • PipPipPipPipPip
  • Group: Full Members
  • Posts: 973
  • Joined: 2013-February-24
  • Gender:Male
  • Location:Dundee Scotland United Kingdom
  • Interests:Occasional chess player. Dominoes

Posted 2013-September-20, 15:36

View Postwyman, on 2013-September-20, 13:28, said:

Well, given this description:
[b]

your responses make it clear that you fail to qualify. This question was very clearly not about noticing that you can cash the AK.

You are obviously not a rank beginner, but you could probably learn a heck of a lot in I/A. And while your responses aren't really welcome (for now) in the expert forum, you should still read it and see what you can learn. And if you have questions about the posts here, PM people (unless they ask you to stop), or repost some content with your questions in I/A, where people will often be happy to discuss similar topics in a more detailed and patient way. But, as many people have told you in other topics, few people will be willing to patiently explain things to you if you are belligerent and bull-headed and continue telling people that they are wrong. Be humble; a lot of people in these forums are a lot better than you are. It will take some time for you to figure out who they are, but it will happen.

Also, one question mark is probably sufficient for your future questions.


Are you speaking about Hitler(?) He's dead (!) And although this is called an experts forum I've yet to see
anything that remotely resembles "expertism." So far all I've witnessed is egotism,bombasticity,and hot air from the so called
"adepts" here. Their so called "wisdom" is actually a dangerous heresy. The advice they espouse is the ultimate
horror of all true friends of this noble game. Well,I dare to challenge the bigoted dogma that is being promoted here
by would be pedagogues. I love ruffling feathers of the wannabes and the aspirants and I will continue to do so.
The game is bigger than anyone. If I think an "expert" is wrong I will tell them,fearlessly,directly. Experts aren't
right all the time...even though there be some here that like to think so....(!)
"It is not enough to be a good player, you must also play well"
- Dr Tarrasch(1862-1934)German Chess Grandmaster

Bridge is a game where you have two opponents...and often three(!)


"Any palooka can take tricks with Aces and Kings; the true expert shows his prowess
by how he handles the two's and three's" - Mollo's Hideous Hog
0

#62 User is offline   mikeh 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 13,006
  • Joined: 2005-June-15
  • Gender:Male
  • Location:Canada
  • Interests:Bridge, golf, wine (red), cooking, reading eclectically but insatiably, travelling, making bad posts.

Posted 2013-September-20, 15:41

Troll Alert!!!!

Warning: this thread has now been godwin'd and should be placed off limits lest the contagion spread.

Please do not feed the troll :P
'one of the great markers of the advance of human kindness is the howls you will hear from the Men of God' Johann Hari
0

#63 User is offline   PhilG007 

  • PipPipPipPipPip
  • Group: Full Members
  • Posts: 973
  • Joined: 2013-February-24
  • Gender:Male
  • Location:Dundee Scotland United Kingdom
  • Interests:Occasional chess player. Dominoes

Posted 2013-September-20, 15:43

View PostVampyr, on 2013-September-20, 12:30, said:

Well...the idea was that your posts are inappropriate in the "Expert" forum.


OMG another pseudo expert Where do they all come from(?!) <_<
"It is not enough to be a good player, you must also play well"
- Dr Tarrasch(1862-1934)German Chess Grandmaster

Bridge is a game where you have two opponents...and often three(!)


"Any palooka can take tricks with Aces and Kings; the true expert shows his prowess
by how he handles the two's and three's" - Mollo's Hideous Hog
0

#64 User is offline   PhilG007 

  • PipPipPipPipPip
  • Group: Full Members
  • Posts: 973
  • Joined: 2013-February-24
  • Gender:Male
  • Location:Dundee Scotland United Kingdom
  • Interests:Occasional chess player. Dominoes

Posted 2013-September-20, 15:46

View Postmikeh, on 2013-September-20, 15:41, said:

Troll Alert!!!!

Warning: this thread has now been godwin'd and should be placed off limits lest the contagion spread.

Please do not feed the troll :P


OK No food for you (!) ;)
"It is not enough to be a good player, you must also play well"
- Dr Tarrasch(1862-1934)German Chess Grandmaster

Bridge is a game where you have two opponents...and often three(!)


"Any palooka can take tricks with Aces and Kings; the true expert shows his prowess
by how he handles the two's and three's" - Mollo's Hideous Hog
0

#65 User is offline   jdeegan 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,427
  • Joined: 2005-August-12
  • Gender:Male
  • Interests:Economics
    Finance
    Bridge bidding theory
    Cooking
    Downhill skiing

Posted 2013-September-20, 16:15

View PostPhilG007, on 2013-September-20, 15:36, said:

Are you speaking about Hitler(?) He's dead (!) And although this is called an experts forum I've yet to see
anything that remotely resembles "expertism." So far all I've witnessed is egotism,bombasticity,and hot air from the so called
"adepts" here. Their so called "wisdom" is actually a dangerous heresy. The advice they espouse is the ultimate
horror of all true friends of this noble game. Well,I dare to challenge the bigoted dogma that is being promoted here
by would be pedagogues. I love ruffling feathers of the wannabes and the aspirants and I will continue to do so.
The game is bigger than anyone. If I think an "expert" is wrong I will tell them,fearlessly,directly. Experts aren't
right all the time...even though there be some here that like to think so....(!)

:P I think you are correct to call these poetasters on their self-reinforcing follies. But what about me? I may be below average for my class, but at least I am really an expert. The thread is worth a look because JLall sometimes posts here. Timo and a few others are OK as well. Still, the drivel to real bridge discussion ratio seems to be getting worse.
0

#66 User is offline   Vampyr 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 10,611
  • Joined: 2009-September-15
  • Gender:Female
  • Location:London

Posted 2013-September-20, 16:33

View PostPhilG007, on 2013-September-20, 15:46, said:

OK No food for you (!) ;)


You are aware, are you not, that the person who has godwin'd has lost the argument, no matter what it was about?
I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones -- Albert Einstein
0

#67 User is offline   the hog 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 10,728
  • Joined: 2003-March-07
  • Gender:Male
  • Location:Laos
  • Interests:Wagner and Bridge

Posted 2013-September-20, 19:30

Can someone please explain "godwin'd"?
"The King of Hearts a broadsword bears, the Queen of Hearts a rose." W. H. Auden.
0

#68 User is offline   Vampyr 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 10,611
  • Joined: 2009-September-15
  • Gender:Female
  • Location:London

Posted 2013-September-20, 19:35

Try this link.
I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones -- Albert Einstein
0

#69 User is offline   benlessard 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 3,465
  • Joined: 2006-January-07
  • Location:Montreal Canada
  • Interests:All games. i really mean all of them.

Posted 2013-September-20, 20:25

Quote

1. Having to remember a specific agreement to handle a situation that virtually never arises is not something real experts do. A more generalized agreement would make sense, imo.
2. The odds that LHO will get the yips and pull to 7m is non-existent for many players and unlikely for the rest since such hands are exceedingly rare. You should know your opponent a little have some table feel if he/she is getting jumpy or had a problem on the previous round of bidding.
3. Even against 7m, partner may lead a spade.
4. 7m may be unmakable against any defense.
5. The form of scoring is BAM. You get either 0, 1/2 or 1. Work out the possibilities.


1- Thats why the general rules of lightner should apply
2- There you are wrong, you have 7 pts and the bidding went 2Nt 6Nt. So either the pts are 20-13-7-0 or either responder had a long running suit and just blast to 6Nt. My estimate is that the 2nd case is at least 5 times more frequent. Note that blasting to 6NT and planning to pull a double to rightside might be a valid strategy against "B" players all along.

3- Not if you play lightner double and understand them.
4- Yes but you win MP by helping your case not by defeating unmakable contracts.
5- that why I said that the double may wing half-a board. Bam strategy is the same as MP except that your estimate of the "others tables" contract can be more precise.
From Psych "I mean, Gus and I never see eye-to-eye on work stuff.
For instance, he doesn't like being used as a human shield when we're being shot at.
I happen to think it's a very noble way to meet one's maker, especially for a guy like him.
Bottom line is we never let that difference of opinion interfere with anything."
0

#70 User is offline   jdeegan 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,427
  • Joined: 2005-August-12
  • Gender:Male
  • Interests:Economics
    Finance
    Bridge bidding theory
    Cooking
    Downhill skiing

Posted 2013-September-21, 00:06

View Postbenlessard, on 2013-September-20, 20:25, said:

1- Thats why the general rules of lightner should apply
2- There you are wrong, you have 7 pts and the bidding went 2Nt 6Nt. So either the pts are 20-13-7-0 or either responder had a long running suit and just blast to 6Nt. My estimate is that the 2nd case is at least 5 times more frequent. Note that blasting to 6NT and planning to pull a double to rightside might be a valid strategy against "B" players all along.

3- Not if you play lightner double and understand them.
4- Yes but you win MP by helping your case not by defeating unmakable contracts.
5- that why I said that the double may wing half-a board. Bam strategy is the same as MP except that your estimate of the "others tables" contract can be more precise.

:P Perhaps you can educate me about the general rules of the lightner double and how it should apply to this as yet hypothetical situation?

By the way, pulling sh*t like 5 to one odds totally out of your ass is the very definition of drivel.
0

#71 User is offline   benlessard 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 3,465
  • Joined: 2006-January-07
  • Location:Montreal Canada
  • Interests:All games. i really mean all of them.

Posted 2013-September-21, 01:41

By the way, pulling sh*t like 5 to one odds totally out of your ass is the very definition of drivel.

Look at it this way. 1NT (15-17) to your right you have 16 pts and you pass and LHO bid 3nt.

Do you think its way more likely that LHO has 7-9 with a long minors that hew expect to run or that he has exactly 9 pts ?

maybe 20-80% is too much but 25-75% is about right. Its quite rare that you can bid and expect to make 6NT without a running suit and its even less likely when you see the defender hand.
From Psych "I mean, Gus and I never see eye-to-eye on work stuff.
For instance, he doesn't like being used as a human shield when we're being shot at.
I happen to think it's a very noble way to meet one's maker, especially for a guy like him.
Bottom line is we never let that difference of opinion interfere with anything."
0

#72 User is offline   jdeegan 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,427
  • Joined: 2005-August-12
  • Gender:Male
  • Interests:Economics
    Finance
    Bridge bidding theory
    Cooking
    Downhill skiing

Posted 2013-September-21, 03:11

View Postbenlessard, on 2013-September-21, 01:41, said:

By the way, pulling sh*t like 5 to one odds totally out of your ass is the very definition of drivel.

Look at it this way. 1NT (15-17) to your right you have 16 pts and you pass and LHO bid 3nt.

Do you think its way more likely that LHO has 7-9 with a long minors that hew expect to run or that he has exactly 9 pts ?

maybe 20-80% is too much but 25-75% is about right. Its quite rare that you can bid and expect to make 6NT without a running suit and its even less likely when you see the defender hand.

:P In the high fallutin' world of mathematics this circumstance is considered an example of what is called Bayesian statistics. In the down home clubs where I learned bridge it recalls the story of the man who bet $100 USD that if a man bet that the seven and one half of spades would never jump out of the deck and spit cider in his eye, he better start looking for a towel.

The opponents bid just like the HCP's were, in fact, distributed 20-13-7 and zero. This is a seriously Bayesian event. Just a guess, but I have to bet that nobody ever responded to a opening 2NT opener with 6NT and then pulled to seven of a minor after you doubled in all of your bridge experience, or for that matter in the experience of anyone you know, personally. Other experiences related in the thread seem, at best, anecdotal. Passing at IMP's is probably correct given the extreme risk/reward ratio. At BAM - well, try to collect your thoughts and reflect on your folly.
0

#73 User is offline   mikeh 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 13,006
  • Joined: 2005-June-15
  • Gender:Male
  • Location:Canada
  • Interests:Bridge, golf, wine (red), cooking, reading eclectically but insatiably, travelling, making bad posts.

Posted 2013-September-21, 07:50

View Postjdeegan, on 2013-September-21, 03:11, said:


The opponents bid just like the HCP's were, in fact, distributed 20-13-7 and zero. This is a seriously Bayesian event. Just a guess, but I have to bet that nobody ever responded to a opening 2NT opener with 6NT and then pulled to seven of a minor after you doubled in all of your bridge experience, or for that matter in the experience of anyone you know, personally. Other experiences related in the thread seem, at best, anecdotal. Passing at IMP's is probably correct given the extreme risk/reward ratio. At BAM - well, try to collect your thoughts and reflect on your folly.

Just because you haven't seen it happen is no justification for dismissing the evidence of those of us who have. I was playing in the worlds in Verona in 2006 and read the bulletin with my own eyes, and Garozzo did indeed pull from 6N to a making grand when his RHO mistakenly doubled 6N, a act of folly given the imp odds. The result at our table had been more mundane...a small slam in a minor, impregnable.

Maybe the bulletin writer lied, but that seems a bit of a stretch since the results were available to check.
'one of the great markers of the advance of human kindness is the howls you will hear from the Men of God' Johann Hari
0

#74 User is offline   dake50 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 2,211
  • Joined: 2006-April-22

Posted 2013-September-21, 08:09

Can I believe my eyes???? Holding 2 certain tricks and on lead against a NT slam
you would NOT double??? Show me how 6NT wouldn't fail on the lead of the AS or KS??
Am I missing something???

*** Yes. We've already won 1 MP-BAM on this hand.
When we have the +1, what do you think the gain is?
A +1 gilded??
Or are your teammates in this same 6Nt-1??
Sure 6Nt fails. But does 7C/7D? Not likely 7H as few wouldn't transfer to H.
Can't be likely 7C/7D loses our +1, but if it does??? Lost +1 trying to 'gild the lily'.
0

#75 User is offline   aguahombre 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 12,029
  • Joined: 2009-February-21
  • Gender:Male
  • Location:St. George, UT

Posted 2013-September-21, 08:27

View Postdake50, on 2013-September-18, 15:31, said:

I would never double as my teammates aren't off one in 6Nt.
That is, this BAM double only wins 1/2 MP-BAM if my teammates are -50. Mine aren't.

View Postdake50, on 2013-September-21, 08:09, said:

Can I believe my eyes???? Holding 2 certain tricks and on lead against a NT slam
you would NOT double??? Show me how 6NT wouldn't fail on the lead of the AS or KS??
Am I missing something???

Hmm. Maybe what you are missing is the entire discussion, including your own early post.
"Bidding Spades to show spades can work well." (Kenberg)
0

#76 User is offline   mikeh 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 13,006
  • Joined: 2005-June-15
  • Gender:Male
  • Location:Canada
  • Interests:Bridge, golf, wine (red), cooking, reading eclectically but insatiably, travelling, making bad posts.

Posted 2013-September-21, 09:07

View Postaguahombre, on 2013-September-21, 08:27, said:

Hmm. Maybe what you are missing is the entire discussion, including your own early post.

you missed dake's point: he screwed up the quote function: he wasn't doubling :D I think
'one of the great markers of the advance of human kindness is the howls you will hear from the Men of God' Johann Hari
1

#77 User is offline   johnu 

  • PipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 5,026
  • Joined: 2008-September-10
  • Gender:Male

Posted 2013-September-21, 11:21

View Postbenlessard, on 2013-September-21, 01:41, said:

By the way, pulling sh*t like 5 to one odds totally out of your ass is the very definition of drivel.

Look at it this way. 1NT (15-17) to your right you have 16 pts and you pass and LHO bid 3nt.

Do you think its way more likely that LHO has 7-9 with a long minors that hew expect to run or that he has exactly 9 pts ?

maybe 20-80% is too much but 25-75% is about right. Its quite rare that you can bid and expect to make 6NT without a running suit and its even less likely when you see the defender hand.


If the 6NT bidder has a long minor and less than expected points, what are the odds that they would check for aces first?
0

#78 User is offline   RMB1 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,841
  • Joined: 2007-January-18
  • Gender:Male
  • Location:Exeter, UK
  • Interests:EBU/EBL TD
    Bridge, Cinema, Theatre, Food,
    [Walking - not so much]

Posted 2013-September-21, 11:38

View Postmikeh, on 2013-September-20, 15:41, said:

Troll Alert!!!!

Warning: this thread has now been godwin'd and should be placed off limits lest the contagion spread.

Please do not feed the troll :P


In the past, I thought the bridge forum equivalent of Godwin's laws was: "As an online bridge discussion grows longer, the probability of a comparison to the Buenos Aires affair approaches 1."

Thankfully, that seems no longer to be true (or the convergence is now much slower).
Robin

"Robin Barker is a mathematician. ... All highly skilled in their respective fields and clearly accomplished bridge players."
2

#79 User is offline   jdeegan 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,427
  • Joined: 2005-August-12
  • Gender:Male
  • Interests:Economics
    Finance
    Bridge bidding theory
    Cooking
    Downhill skiing

Posted 2013-September-22, 03:24

View Postmikeh, on 2013-September-21, 07:50, said:

Just because you haven't seen it happen is no justification for dismissing the evidence of those of us who have. I was playing in the worlds in Verona in 2006 and read the bulletin with my own eyes, and Garozzo did indeed pull from 6N to a making grand when his RHO mistakenly doubled 6N, a act of folly given the imp odds. The result at our table had been more mundane...a small slam in a minor, impregnable.

Maybe the bulletin writer lied, but that seems a bit of a stretch since the results were available to check.

:P Wrong to double at IMP's because of risk/reward ratio. Since we both know Garozzo, we can agree that he is/was a feisty and intuitive little dude who might actually do what he reportedly actually did do at Verona. I have seen him do some miraculous things at the bridge table. He may have been, in some ways, the best (and scariest) bridge player in history. If he is my LHO, then I pass even at BAM.
0

#80 User is offline   rhm 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 3,092
  • Joined: 2005-June-27

Posted 2013-September-22, 04:13

View Postjdeegan, on 2013-September-22, 03:24, said:

:P Wrong to double at IMP's because of risk/reward ratio. Since we both know Garozzo, we can agree that he is/was a feisty and intuitive little dude who might actually do what he reportedly actually did do at Verona. I have seen him do some miraculous things at the bridge table. He may have been, in some ways, the best (and scariest) bridge player in history. If he is my LHO, then I pass even at BAM.

I am not so sure.
I think the problem is one of perception. Human memory is impressed by the exceptional not by the normal and the exceptional gets reported not the normal.
Man bites dog is news, dog bites man not.
But this makes our experience biased and humans are notoriously bad in evaluating small rewards against small probability losing big or vice versa. For example many safety plays are not worthwhile at IMPs.

If

a) N-S have a run-out at the seven level and know it and
b) can make North declarer and
c) East will not find the spade lead

you have a great story. But this is a parlay. While such deals exist, how likely is it? Deals almost always exist, which can prove you wrong.

At BAM I would certainly double and I consider PASS the typical expert error. At BAM the reward is not small nor is the potential loss huge.
Good players often see ghosts, in particular if one of their opponents is a name player like Garozzo. There is also the psychological effect, that no knowledgeable expert likes to look stupid.

With regard to IMPs it is true that the reward is small but not tiny, maybe 3 IMPs, but the probability of a big loss so small that DBL is probably the winning action in the long run.
The chance after the bidding started 2NT-6NT, that N-S will not have 13 tricks in 3 suits and will go down even more if they try is substantial.
If you consider the chance that your partner will find the spade lead against 7m is at least 50%, at worst you simply bet a big IMP win against a big loss even if opponents find the run out.
The IMP difference between winning 500 against loosing 2000 is small, looks only impressive on paper.

Of course I am not blind that there are many doubles of small slams, which are a mistake, e,g when trumps break badly for declarer, but opponents can correct to 6NT or will play differently after a DBL etc.
But as usual it is wrong to generalize, you have to judge the merits of the specific situation.

Rainer Herrmann
0

  • 5 Pages +
  • « First
  • 2
  • 3
  • 4
  • 5
  • You cannot start a new topic
  • You cannot reply to this topic

6 User(s) are reading this topic
0 members, 6 guests, 0 anonymous users