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Compensation Table Duplicate bridge with 4 players

#1 User is offline   teinemaa 

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Posted 2009-November-22, 09:55

A new way to play duplicate bridge instead of rubber with your friends. It is like a
two teams match where the closed room results are taken from the table
taking the high card points and distribution into account. Table was
calculated on the basis of over 60,000 results from world class
players.
Take a look: http://www.compensationtable.com

Any kind of questions and feedback is welcome.
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#2 User is offline   georgeac 

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Posted 2009-November-23, 18:06

it needs more explanation. i am still confused. what do you compare it to? say the score is 420 for 4H making nonvulnerable. what is the equivalant score on the chart?
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#3 User is offline   junyi_zhu 

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Posted 2009-November-23, 18:41

teinemaa, on Nov 22 2009, 03:55 PM, said:

A new way to play duplicate bridge instead of rubber with your friends. It is like a
two teams match where the closed room results are taken from the table
taking the high card points and distribution into account. Table was
calculated on the basis of over 60,000 results from world class
players.
Take a look: http://www.compensationtable.com

Any kind of questions and feedback is welcome.

Interesting. It would be interesting to see how it works in money bridge IMO.
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#4 User is online   P_Marlowe 

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Posted 2009-November-24, 07:01

georgeac, on Nov 23 2009, 07:06 PM, said:

it needs more explanation. i am still confused. what do you compare it to? say the score is 420 for 4H making nonvulnerable. what is the equivalant score on the chart?

Basically it is a modified version of russian scoring.
http://www.pagat.com...icago%20-%20rus

The adv. is, that russian scoring only looks at HCP, in contrast this modified
version takes the degreet of fit you have into the consideration as well.

With kind regards
Marlowe
With kind regards
Uwe Gebhardt (P_Marlowe)
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#5 User is offline   helene_t 

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Posted 2009-November-24, 07:04

What to do if both sides have a major suit fit and 20 HCPs? Does spades prevail over hearts?
The world would be such a happy place, if only everyone played Acol :) --- TramTicket
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#6 User is online   P_Marlowe 

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Posted 2009-November-24, 07:07

helene_t, on Nov 24 2009, 08:04 AM, said:

What to do if both sides have a major suit fit and 20 HCPs? Does spades prevail over hearts?

One sides plays?

And if you have a double fit, you take the combined length of the trump
suit you choose?

With kind regards
Marlowe
With kind regards
Uwe Gebhardt (P_Marlowe)
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#7 User is offline   helene_t 

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Posted 2009-November-24, 07:10

P_Marlowe, on Nov 24 2009, 02:07 PM, said:

One sides plays?

And if you have a double fit, you take the combined length of the trump
suit you choose?

With kind regards
Marlowe

No, the par score does not depend on what happend at the table. For all we know, the board might have been passed out.
The world would be such a happy place, if only everyone played Acol :) --- TramTicket
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#8 User is online   P_Marlowe 

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Posted 2009-November-24, 07:33

helene_t, on Nov 24 2009, 08:10 AM, said:

P_Marlowe, on Nov 24 2009, 02:07 PM, said:

One sides plays?

And if you have a double fit, you take the combined length of the trump
suit you choose?

With kind regards
Marlowe

No, the par score does not depend on what happend at the table. For all we know, the board might have been passed out.

I doubt, that the table displayes the part score.

In Russian Scoring you run against the Expected Score given a
certain amount of HCP you hold, and if you use the alternative table,
you basically run against the Expected Score given a certain amount
of HCP, and the fit you have with p.

Taking the degree of fit into acount to calculate the Expected Score is
certainly a sensible improvement over tradional method of Russian
Scoring.

With kind regards
Marlowe
With kind regards
Uwe Gebhardt (P_Marlowe)
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#9 User is offline   teinemaa 

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Posted 2009-November-24, 09:58

I had the rules in about page. It seems that most of you didn't find them, so they where in really bad place. I made additional page to compensationtable.com about are rules and examples, how to use this table.

georgeac said:

it needs more explanation. i am still confused. what do you compare it to? say the score is 420 for 4H making nonvulnerable. what is the equivalant score on the chart?

Lets say these who made 4H had 25 HCPs and 9-card heart fit and are expected to get 390 points. But they got 420 so it is 1 IMP for them.

junyi_zhu said:

Interesting. It would be interesting to see how it works in money bridge IMO.

You can find out :P . In Estonia, the older version of this table was used for money bridge. Stakes where about 1 IMP = 1$.

P_Marlowe said:

Basically it is a modified version of russian scoring.
http://www.pagat.com...icago%20-%20rus

The adv. is, that russian scoring only looks at HCP, in contrast this modified
version takes the degreet of fit you have into the consideration as well.

With kind regards
Marlowe

I never heard the term Russian Scoring before. Thanks for that information. The other big advantage is that Russian Scoring is made about 20 years ago (I thought this method was forgotten). The Portable Bridge Notation, which is standard to store bridge deals in computer files, is 10 years old. So the Russian Scoring is probably based on some deals and creators experience, but my table is based on over 30 000 deals played by expert players.

helene_t said:

What to do if both sides have a major suit fit and 20 HCPs? Does spades prevail over hearts?

Before creating this table, I thought about the 20 HCPs problem. My first idea was that line with more cards in spade suit should score. My last idea was to make it as simple and fast as possible so the line how started bidding should score.

Thanks for feedback,
Tanel
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#10 User is offline   helene_t 

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Posted 2009-November-24, 10:10

P_Marlowe, on Nov 24 2009, 02:33 PM, said:

I doubt, that the table displayes the part score.

par score, not part score. anyway par score is not the correct term I think, datum score it must be. sr.

Tx for clarrification, and welcome to the forum, teinemaa!
The world would be such a happy place, if only everyone played Acol :) --- TramTicket
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#11 User is offline   teinemaa 

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Posted 2009-November-24, 10:37

I believe this table is especially good for new players who want to play duplicate bridge (which is more challenging than rubber) with friends. As a junior bridge player, I know many bridge juniors, who want to play duplicate bridge but who doesn't like the tense tournament atmosphere.
So I want to make this table as popular as possible to make more people to play bridge. I would be really happy, if you have any ideas how to make this table more popular.
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#12 User is offline   gwnn 

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Posted 2009-November-24, 10:53

I have to say the scoring table seems more logical the way your site says (e.g. NV):

partscore=50
game=300
small slam=800
grand slam=1300

than what the official 50, 300, 500, 500 and then needing to explain that the 50 for the partscore applies only for partscores but the other ones are additive.
... and I can prove it with my usual, flawless logic.
      George Carlin
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#13 User is offline   Rossoneri 

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Posted 2009-November-28, 19:58

This came at a good time - I was fretting over how to score a minibridge tournament, I might try this out!
SCBA National TD, EBU Club TD

Unless explicitly stated, none of my views here can be taken to represent SCBA or any other organizations.
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