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Date: 16 Jun 2007 20:16:05
From: Jud McCranie
Subject: How to download endgame tablebase from Endgame Tablebases Online page
I can't find where you can download endgame tablebases from
http://kd.lab.nig.ac.jp/chess/tablebases-online/ The links with the
pieces, tbs, and MD5 don't seem to do it. Can someone point me to
where they can be downloaded?
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Date:
From: Martin Brown
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online page


  
Date: 17 Jun 2007 20:40:52
From: Jud McCranie
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online page
On Sun, 17 Jun 2007 15:12:30 -0700, tin Brown
<


   
Date: 18 Jun 2007 04:39:14
From: Anders Thulin
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online
Jud McCranie wrote:

> Versus approximately 200 hours to d/l (at the speed I'm getting). :-(

And what speed is that?

I'm on a fairly slow DSL connection, for which the automatic
configuration found 96 KB/s DL rate (which leaves me some bandwidth for non-downloading).
I have an average download rate of 55 KB/s counted over something like 100
days of use.

KBNNKR is 156 + 531 MB (these are quite small for six-piece EGTB). Some engines allow
you to use only one of the two files, so you may be able to get it faster.


--
Anders Thulin anders*thulin.name http://www.anders.thulin.name/


    
Date: 18 Jun 2007 01:07:52
From: Jud McCranie
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online page
On Mon, 18 Jun 2007 04:39:14 GMT, Anders Thulin
<[email protected] > wrote:

> And what speed is that?

I've had it going most of the day, and it is currently 3.3 KB/sec. I'm
on a 6 megabit/sec cable connection and I often get 400-600 KB/sec.

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Date: 17 Jun 2007 15:54:42
From: cbseries
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online page

Jud McCranie Wrote:
> I can't find where you can download endgame tablebases from
> http://kd.lab.nig.ac.jp/chess/tablebases-online/ The links with the
> pieces, tbs, and MD5 don't seem to do it. Can someone point me to
> where they can be downloaded?
> --
> Replace you know what by j to email

To download from that site you need a program called emule if you ar
using Windows, or amule if you are using Linux or Mac. On the site
just below the "Introduction" heading tells of this.


If you can handle just using the 5 man tablebases you can get them fro
Robert Hyatt's site-

ftp://ftp.cis.uab.edu/pub/hyatt/TB/

click on the '3-4-5' folde


--
cbseries


  
Date: 17 Jun 2007 19:21:59
From: D. Spencer Hines
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online page
Is emule freeware?

"cbseries" <[email protected] > wrote in message
news:[email protected]...

> To download from that site you need a program called emule if you are
> using Windows, or amule if you are using Linux or Mac. On the site,
> just below the "Introduction" heading tells of this.




 
Date: 17 Jun 2007 14:38:50
From: Anders Thulin
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online
Jud McCranie wrote:
> I can't find where you can download endgame tablebases from
> http://kd.lab.nig.ac.jp/chess/tablebases-online/ The links with the
> pieces, tbs, and MD5 don't seem to do it.

Read the Introduction a bit more carefully ... particularly the part
about eMule.

All links are ed2k links, and require eMule or close relatives.

--
Anders Thulin anders*thulin.name http://www.anders.thulin.name/


  
Date: 17 Jun 2007 11:35:32
From: Jud McCranie
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online page
On Sun, 17 Jun 2007 14:38:50 GMT, Anders Thulin
<[email protected] > wrote:

>Jud McCranie wrote:
>> I can't find where you can download endgame tablebases from
>> http://kd.lab.nig.ac.jp/chess/tablebases-online/ The links with the
>> pieces, tbs, and MD5 don't seem to do it.
>
> Read the Introduction a bit more carefully ... particularly the part
>about eMule.
>
> All links are ed2k links, and require eMule or close relatives.

Later I did find out about eMule and I installed that. However, when
I got a download to start, it was going at slower than dialup speed,
so it was going to take several days to download just the files for
one ending. I stopped that one and tried a few other servers, and
none of them would even start. They would just say "waiting".

Is there a server that works and works at broadband speed?
--
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Date: 17 Jun 2007 19:32:05
From: Anders Thulin
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online
Jud McCranie wrote:

> Later I did find out about eMule and I installed that. However, when
> I got a download to start, it was going at slower than dialup speed,
> so it was going to take several days to download just the files for
> one ending. I stopped that one and tried a few other servers, and
> none of them would even start. They would just say "waiting".
>
> Is there a server that works and works at broadband speed?

eMule (or perhaps it eDonkey) chops files into chunks that seem
to be 9-10 Mb. You download a chunk at a time, after which the peer
puts you back in its queue. How quickly you reach the front again
is anyone's guess.

There are a few systems that seem to give you all they have for
as long as it takes, but typically it takes perhaps a week to
get a file. Of course, the thing is that if you place say 15-20
files in your request queue, it still will take about a week
to get them all (assuming they're frequent files, and available
from many eMule systems). Rare files will come at a speed entirely
depending on the few systems that share them.

You can improve things by ensuring that you do not have a low
ID problem -- that tends to downrate you, as you then don't talk
directly to your peer. And you can also improve things by sharing
your downloaded files -- that, too, will increase your status.
Look through the Thread1 and Thread2 references on the web page for
recommendations.

On the other hand, downloads tend to be faultless, and if there
are problems, they're isolated to small segments which are then
downloaded again automatically. With less capable methods, you
often have to redo from the top.

If you have to use FTP or HTTP, there are some links in the
'Additional information' section that you may want to check out.

--
Anders Thulin anders*thulin.name http://www.anders.thulin.name/


    
Date: 17 Jun 2007 17:32:33
From: Jud McCranie
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online page
On Sun, 17 Jun 2007 19:32:05 GMT, Anders Thulin
<[email protected] > wrote:

> There are a few systems that seem to give you all they have for
>as long as it takes, but typically it takes perhaps a week to
>get a file.


Roughly how long would it take to generate KBNNKR on a 2.2 GHz Athlon
64x2 with 4 GB of memory?
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Date: 18 Jun 2007 04:28:27
From: Anders Thulin
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online
Jud McCranie wrote:

> Roughly how long would it take to generate KBNNKR on a 2.2 GHz Athlon
> 64x2 with 4 GB of memory?

No good idea, I'm afraid. A very rough guess, based on how long it took
to generate 5-piece endgame tables on a much slower machine is something
on the order of three or four days.


--
Anders Thulin anders*thulin.name http://www.anders.thulin.name/


     
Date: 17 Jun 2007 22:34:59
From: D. Spencer Hines
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online page
Why are these files so large and how many MB are they?

DSH

"Jud McCranie" <[email protected] > wrote in message
news:[email protected]...

> On Sun, 17 Jun 2007 19:32:05 GMT, Anders Thulin
> <[email protected]> wrote:
>
>> There are a few systems that seem to give you all they have for
>>as long as it takes, but typically it takes perhaps a week to
>>get a file.
>
>
> Roughly how long would it take to generate KBNNKR on a 2.2 GHz Athlon
> 64x2 with 4 GB of memory?




      
Date: 17 Jun 2007 21:21:08
From: Jud McCranie
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online page
On Sun, 17 Jun 2007 22:34:59 +0100, "D. Spencer Hines"
<[email protected] > wrote:

>Why are these files so large and how many MB are they?

This show the sizes: http://kd.lab.nig.ac.jp/chess/tablebases-online/

The six-piece files range from roughly 500 MB to over 10 GB.
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Date: 18 Jun 2007 02:28:13
From: D. Spencer Hines
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online page
Any idea as to how many moves are involved, for the six-piece endgames?

DSH

"Jud McCranie" <[email protected] > wrote in message
news:[email protected]...

> On Sun, 17 Jun 2007 22:34:59 +0100, "D. Spencer Hines"
> <[email protected]> wrote:
>
>>Why are these files so large and how many MB are they?
>
> This show the sizes: http://kd.lab.nig.ac.jp/chess/tablebases-online/
>
> The six-piece files range from roughly 500 MB to over 10 GB.




        
Date: 27 Jun 2007 12:39:58
From: David Richerby
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online page
D. Spencer Hines <[email protected] > wrote:
> Any idea as to how many moves are involved, for the six-piece
> endgames?

Tablebases store positions, not moves. For each position, the
tablebase stores the number of moves until the win or loss or the fact
that the position is drawn. Given a position, you consider each legal
move and ask the tablebase for the evaluation of the resulting
position. If any of them are wins, you make the move that leads to
the shortest win; otherwise, you make any move that leads to a draw;
otherwise, it doesn't really matter what you do because everything
loses.

As for the question of how many positions are involved for a six-piece
endgame, I'm afraid I don't know. However, they presumably don't
store distances to wins of greater than 50 moves, so seven bits per
position should suffice. So, dividing the size of the file by 7/8
should give a reasonable approximation.


Dave.

--
David Richerby Solar-Powered Laptop Windows (TM):
www.chiark.greenend.org.uk/~davidr/ it's like a graphical user interface
that you can put on your lap but it
doesn't work in the dark!


      
Date: 17 Jun 2007 20:42:18
From: Jud McCranie
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online page
On Sun, 17 Jun 2007 22:34:59 +0100, "D. Spencer Hines"
<[email protected] > wrote:

>Why are these files so large and how many MB are they?

It just takes that much to give the data for all of the positions.
IIRC, the 6-man ones range from many megabytes to a little over 1 GB
in size.
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Date: 18 Jun 2007 02:06:07
From: D. Spencer Hines
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online page
Thank you kindly.

DSH

"Jud McCranie" <[email protected] > wrote in message
news:[email protected]...

> On Sun, 17 Jun 2007 22:34:59 +0100, "D. Spencer Hines"
> <[email protected]> wrote:
>
>>Why are these files so large and how many MB are they?
>
> It just takes that much to give the data for all of the positions.
> IIRC, the 6-man ones range from many megabytes to a little over 1 GB
> in size.
> --
> Replace you know what by j to email




    
Date: 17 Jun 2007 17:18:16
From: Jud McCranie
Subject: Re: How to download endgame tablebase from Endgame Tablebases Online page
On Sun, 17 Jun 2007 19:32:05 GMT, Anders Thulin
<[email protected] > wrote:

> There are a few systems that seem to give you all they have for
>as long as it takes, but typically it takes perhaps a week to
>get a file.

I've had a download of KBNNKR going for several hours, and at this
rate it is going to take about 8 days! It is slower than dialup.
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