7-man egtb - how far?

Snape · Post by **Snape** » Sun Dec 20, 2009 9:00 am

Hi,
does someone know how many of the 7-man-egtbs have been built up to now and if (where?) they are available, e.g. for online usage/positions requests?

Snape · Post by **Snape** » Tue Dec 22, 2009 9:21 am

OK, does anyone know anything about the 7-man-endgame tablebases?

Dann Corbit · Post by **Dann Corbit** » Tue Dec 22, 2009 9:44 am

Snape wrote:Hi,
does someone know how many of the 7-man-egtbs have been built up to now and if (where?) they are available, e.g. for online usage/positions requests?

I guess that the best place to ask is:
http://kirill-kryukov.com/chess/discuss ... um.php?f=6

Also, Victor Zakharov has time coming on the Blue Gene supercomputer at Moscow University and 7 men files are expected to become available in 2012.

beachknight · Post by **beachknight** » Tue Dec 22, 2009 9:52 am

Hello Ralf,

This topic has previously been discussed here. Checking
the archives could be of some help. You might also look
at Rybka Forum. Another source on egtb is:

http://kirill-kryukov.com/chess/discuss ... um.php?f=6

Best,

PS: I have full set of 5-man. I'll download few important
6-man for testing purposes, ie to try to determine their
effects on engine play.

Snape · Post by **Snape** » Tue Dec 22, 2009 12:15 pm

beachknight wrote:Hello Ralf,

This topic has previously been discussed here. Checking
the archives could be of some help.

I did a search but couldn't find some information on it.

beachknight wrote: You might also look
at Rybka Forum. Another source on egtb is:

http://kirill-kryukov.com/chess/discuss ... um.php?f=6

Ah, this link is very useful, thx to you and Dann!

beachknight wrote: Best,

PS: I have full set of 5-man. I'll download few important
6-man for testing purposes, ie to try to determine their
effects on engine play.

I have all 6-men-egtbs, but I have a 7-men-position (KNNP-KNP) on the board where the transposition and capture might appear an very late future. So all the endgame database programs neither announce a mate nor a draw evalutaion. That is why I would like to take a look into the 7-men-egtbs.

Peter Skinner · Post by **Peter Skinner** » Tue Dec 22, 2009 3:08 pm

Snape wrote: I have all 6-men-egtbs, but I have a 7-men-position (KNNP-KNP) on the board where the transposition and capture might appear an very late future. So all the endgame database programs neither announce a mate nor a draw evalutaion. That is why I would like to take a look into the 7-men-egtbs.

What are the exact size of all the 3-4-5-6 man tb on disk?

Snape · Post by **Snape** » Tue Dec 22, 2009 4:57 pm

You can calculate with about 1200 GB

ernest · Post by **ernest** » Tue Dec 22, 2009 7:18 pm

Peter Skinner wrote:What are the exact size of all the 3-4-5-6 man tb on disk?

Nalimov (no 5-1 in 6 man):

Code: Select all

3 man            10 files             63 982 bytes
3-4 man          70               31 047 727
3-4-5 man       290            7 580 348 624
6 man          2512        1 231 567 823 856

beachknight · Post by **beachknight** » Tue Dec 22, 2009 7:43 pm

Mine : 290 files 7.580.348.624 bytes

Best,

beachknight · Post by **beachknight** » Tue Dec 22, 2009 7:47 pm

Q: TBS files?

I have another tablebases directory: tbs

It contains the files like kbbbkn.tbs, ...

141 files 1.127.822 bytes

I have downloaded them from Robert's ftp server to use with Crafty.

What are these files and how can I use them?

Best,

7-man egtb - how far?

7-man egtb - how far?

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Re: 7-man egtb - how far?

Re: 7-man egtb - how far?

Re: 7-man egtb - how far?

Re: 7-man egtb - how far?

Re: 7-man egtb - how far?

Re: 7-man egtb - how far?

Re: 7-man egtb - how far?

Re: 7-man egtb - how far?