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RE: GNU Backgammon


From: Ian Shaw
Subject: RE: GNU Backgammon
Date: Tue, 23 Aug 2022 07:58:39 +0000

Hi David,

 

From https://bkgm.com/articles/Sengoku/GraphicalMatchEquity/FishEffects/index.html I understand that these are the tables used for compiling the METs.

 

Since we have a jac50, I assume that one would be T-14.

If you could send a picture of T-17 and T-19, that would be great.

 

Table #

Page

Rating point difference

T-13

32

0 (even)

T-15

34

100

T-17

36

200

T-19

38

300

 

Thanks,

Ian Shaw

 

 

From: public@booksongaming.com <public@booksongaming.com>
Sent: 23 August 2022 00:29
To: Ian Shaw <Ian.Shaw@riverauto.co.uk>; 'Øystein Schønning-Johansen' <oysteijo@gmail.com>; 'Ezequiel Galarce' <egalarce@gmail.com>; 'bug-gnubg' <bug-gnubg@gnu.org>
Subject: RE: GNU Backgammon

 

I have a copy of the book. There are more than 60 tables in it, but if anyone knows which one(s) you’re looking for, I’m happy to send along photos.

 

Best,

 

David Levy

 

From: Bug-gnubg <bug-gnubg-bounces+public=booksongaming.com@gnu.org> On Behalf Of Ian Shaw
Sent: Monday, August 22, 2022 1:34 PM
To: Øystein Schønning-Johansen <oysteijo@gmail.com>; Ezequiel Galarce <egalarce@gmail.com>; bug-gnubg <bug-gnubg@gnu.org>
Subject: Re: GNU Backgammon

 

There was a table in the book. Tom Keith refers to it in one of his articles on bkgm.com.

 

If I can resurrect an old hard drive, I'll have a look. 

 

It ought to be possible to generate fish tables from first principles, assuming a win rate and gammon rate per player. 

 

I think Jacobs used 24% gammon rate, which is higher than most. 

 

Regards,

Ian Shaw

 


From: Bug-gnubg <bug-gnubg-bounces+ian.shaw=riverauto.co.uk@gnuorg> on behalf of Øystein Schønning-Johansen <oysteijo@gmail.com>
Sent: Monday, August 22, 2022 5:08:30 PM
To: Ezequiel Galarce <egalarce@gmail.com>; bug-gnubg <bug-gnubg@gnu.org>
Subject: Re: GNU Backgammon

 

Hmmm....

 

If my archive remembers correctly there never was a jac200 table. I don't have a copy of "Can a Fish Taste Twice as Good?", is it even a table in that book? I find no file called jac200.xml in the CVS attic either. So if there was a file called jac200,xml it must have been a local contribution that never was checked in.

 

The guy who contributed this was named Craig Campbell. (Must be 20 years ago or so) Is it possible to get hold of him?

 

-Øystein

 

man. 22. aug. 2022 kl. 17:27 skrev Ezequiel Galarce <egalarce@gmail.com>:

I don't know, I'm asking the creator of the equity table, maybe he has it

 

El lun., 22 ago. 2022 16:06, Ian Shaw <Ian.Shaw@riverauto.co.uk> escribió:

H Ezequiel,

 

Now that you mention it, I think you’re right. I wonder why it’s been omitted from the installation.

 

Does anyone here have a copy of the jac200 MET?

 

-- Ian

 

From: Ezequiel Galarce <egalarce@gmail.com>
Sent: 22 August 2022 15:01
To: Ian Shaw <Ian.Shaw@riverauto.co.uk>
Subject: Re: GNU Backgammon

 

Hello, I have contacted the creator of "jac050" and "jac100" and he told me that he thinks he remembers that he had made a "jac200", I don't have any data.

 

El lun., 22 ago. 2022 12:51, Ian Shaw <Ian.Shaw@riverauto.co.uk> escribió:

Hi Ezequiel,

 

I don’t think the jac200 table is available on line.

 

If you have the raw data, it’s easy to make a MET that gnubg can use. I could create one if you can find the data

 

Regards,

Ian

 

 

From: Ezequiel Galarce <egalarce@gmail.com>
Sent: 19 August 2022 22:19
To: Ian Shaw <Ian.Shaw@riverauto.co.uk>
Subject: Re: GNU Backgammon

 

Hello good evening, can you get the equity table "jac200.xml"?

 

El vie., 19 ago. 2022 14:54, Ian Shaw <Ian.Shaw@riverauto.co.uk> escribió:


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