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MP: vul 5 level overcall by passed hand What's going on here?

#1 User is offline   diana_eva 

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Posted 2017-August-27, 06:52

Matchpoints, white vs red



What's going on here? What would you do next?


#2 User is offline   Tramticket 

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Posted 2017-August-27, 09:36

Unless west is a complete beginner, I can only guess that he holds good defensive values against a diamond contract. Seven hearts and five diamonds maybe?

Whatever the explanation, I would double.
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#3 User is offline   steve2005 

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Posted 2017-August-27, 10:01

West could have 5D or good D, but no reason to believe.
This auction doesn't exist.
So I would assume west is operating and could have anything but does have good long hearts.
What to do I have no idea. I assume partners pass is forcing so would bid on with AD as only defense
Sarcasm is a state of mind
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#4 User is offline   Cyberyeti 

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Posted 2017-August-27, 10:22

The other hand type he could have is something truly enormous, and figured he'd get more info before picking as he didn't think he could get suitable help from partner, and the opps bidding might be more informative.

Example from my experience:


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#5 User is offline   Tramticket 

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Posted 2017-August-27, 10:44

View PostCyberyeti, on 2017-August-27, 10:22, said:

The other hand type he could have is something truly enormous, and figured he'd get more info before picking as he didn't think he could get suitable help from partner, and the opps bidding might be more informative.

Example from my experience:




I guess that this is possible. But with an enormous hand, he still might find out more by starting with a double.

I take partner's pass as forcing and don't feel I have sufficient extra to bid on.
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#6 User is offline   Cyberyeti 

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Posted 2017-August-27, 12:04

View PostTramticket, on 2017-August-27, 10:44, said:

I guess that this is possible. But with an enormous hand, he still might find out more by starting with a double.



Only if it doesn't end the auction which although very unlikely you really don't want.
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#7 User is offline   P_Marlowe 

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Posted 2017-August-27, 14:28

X

In the real world this is easier, you will have some ideas, about the playing strength of West.
With kind regards
Uwe Gebhardt (P_Marlowe)
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#8 User is offline   The_Badger 

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Posted 2017-August-27, 14:33

The only logical explanation is 1 is forcing and West doesn't have to bid on the first round.

It's a hideous decision, but West might have bid 4 on the first round of the auction, and the auction probably would have concluded there, so I don't see any reason to bid on or double at match points. Keep it simple. As to whether partner's pass is forcing in this type of auction, I'll let better players than me decide.
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#9 User is offline   steve2005 

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Posted 2017-August-27, 14:49

A hand like in Tramticket post. there is no science that for sure will work.
So bid X pass whatever you think is best chance.
Sarcasm is a state of mind
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#10 User is offline   miamijd 

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Posted 2017-August-28, 12:35

deleted
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#11 User is offline   PhilG007 

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Posted 2017-August-28, 13:30

View Postdiana_eva, on 2017-August-27, 06:52, said:

Matchpoints, white vs red



What's going on here? What would you do next?

I'm suspicious West had the chance to bid his suit over 1 diamond so it could be a misclick. I would check to see what the bid meant
first of all before deciding my next action. If West did not provide an explanation,I would summon the TD for a ruling
"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
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#12 User is offline   alok c 

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Posted 2017-August-28, 13:31

What North's 3 indicates ?
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#13 User is offline   PhilG007 

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Posted 2017-August-28, 14:17

View Postalok c, on 2017-August-28, 13:31, said:

What North's 3 indicates ?

I'm assuming a good 6+ suit and 15-16 hcp
"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
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#14 User is offline   sfi 

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Posted 2017-August-28, 14:17

Partner's pass is clearly forcing, so we have to take some action. The only sensible choices are double and 6C, but it's hard to work out what is going on. Nonetheless, we know a few thinks:
- LHO is bidding this to make, and wants to be doubled.
- LHO isn't trying to talk us out of slam, since we weren't getting there before their bid.
- Partner doesn't have a clear action, so hands with heart tricks or a singleton diamond and 3 hearts are excluded, as are many hands with a heart shortage.

So, what does LHO have? My best guess is something like:
x
AQJTxxx
KQxxx
-

where they are buying a singleton diamond and Kxx of hearts in dummy. On this layout, partner needs to lead a heart to beat 5H, but we have two losers in clubs.

So I lean towards doubling. If my construction is close to correct, other tables are likely to face a similar problem after an immediate heart bid by LHO, possibly with a raise at some point. So there is no real reason to go all to rescue the position by bidding the slam.
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#15 User is offline   miamijd 

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Posted 2017-August-28, 15:43

View Postsfi, on 2017-August-28, 14:17, said:

Partner's pass is clearly forcing, so we have to take some action. The only sensible choices are double and 6C, but it's hard to work out what is going on. Nonetheless, we know a few thinks:
- LHO is bidding this to make, and wants to be doubled.
- LHO isn't trying to talk us out of slam, since we weren't getting there before their bid.
- Partner doesn't have a clear action, so hands with heart tricks or a singleton diamond and 3 hearts are excluded, as are many hands with a heart shortage.

So, what does LHO have? My best guess is something like:
x
AQJTxxx
KQxxx
-

where they are buying a singleton diamond and Kxx of hearts in dummy. On this layout, partner needs to lead a heart to beat 5H, but we have two losers in clubs.

So I lean towards doubling. If my construction is close to correct, other tables are likely to face a similar problem after an immediate heart bid by LHO, possibly with a raise at some point. So there is no real reason to go all to rescue the position by bidding the slam.


Why would LHO not bid some number of hearts with that hand over 1D? Wouldn't you?

I would think it more likely that LHO has something like

Axx
AKQJxxxxx
x
void

Cheers,
mike
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#16 User is offline   Stefan_O 

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Posted 2017-August-28, 16:08

View PostPhilG007, on 2017-August-28, 13:30, said:

I'm suspicious West had the chance to bid his suit over 1 diamond so it could be a misclick. I would check to see what the bid meant
first of all before deciding my next action. If West did not provide an explanation,I would summon the TD for a ruling


Ummm... what do you expect the TD to rule in this situation,
other than tell you to place your next bidding card?

If you force West to say something, I'd expect "No agreement." :)
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#17 User is offline   diana_eva 

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Posted 2017-August-28, 16:58

OK, so this doesn't exist, at least there's agreement on that. I decided to double.

This was the full hand:


West was indeed operating, for some unknown reason. This was board 3 out of 12, I don't see why he found it necessary to gamble. Opps made 5Hx+1 which, surprisingly was around 40% because most of the field was in 6H making. Had I passed, it would have been 57%.

#18 User is offline   wank 

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Posted 2017-August-28, 17:47

presumably he's sandbagging.

anyway, it doesn't matter; if partner's not doubled, we should keep bidding - our club length is effectively negative defensive tricks. hopefully we won't be given the same decision at the 6 level.
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#19 User is offline   nekthen 

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Posted 2017-August-29, 03:08

View Postdiana_eva, on 2017-August-28, 16:58, said:

OK, so this doesn't exist, at least there's agreement on that. I decided to double.

This was the full hand:


West was indeed operating, for some unknown reason. This was board 3 out of 12, I don't see why he found it necessary to gamble. Opps made 5Hx+1 which, surprisingly was around 40% because most of the field was in 6H making. Had I passed, it would have been 57%.


East could redouble, he has two perfect cards and probably should have bid 6H

Also, a pet peeve, why does north think it necessary to bid 3C? Surely this is only worth 2C?
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#20 User is offline   Tramticket 

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Posted 2017-August-29, 09:24

View Postnekthen, on 2017-August-29, 03:08, said:

East could redouble, he has two perfect cards and probably should have bid 6H

Also, a pet peeve, why does north think it necessary to bid 3C? Surely this is only worth 2C?



"East could redouble" ... maybe we find our club sacrifice then!

"why does north think it necessary to bid 3C?" ... Maybe North thinks that (at least) six certain club tricks + KQX in partner's suit + a void adds up to a good hand? Don't you like North's hand?
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