6-men (64 bit) Nalimov EGTB generator

Discussion of anything and everything relating to chess playing software and machines.

Moderator: Ras

Juan P. Naar
Posts: 69
Joined: Fri May 15, 2020 3:55 pm
Full name: Juan Pablo Naar

Re: 6-men (64 bit) Nalimov EGTB generator

Post by Juan P. Naar »

MOBMAT wrote: Wed Jan 28, 2026 4:31 am Dan, all good reasons.
I didn't realize 5v1 files were missing.
I would definitely like to add them to my collection.
As for 7 man Nalimov files, wow, that would be amazing. But to quote Jaws....you're gonna need a bigger hard drive!

If the missing 6-man files are created, would the existing engines, such as Houdini be able to use them or does it require mods to the existing code base?

V
Hey,

Just updated the generator. There is still more work to be done. The last file I posted was v5, this is v10 with major changes:
https://mega.nz/file/xUpRzThD#E_YTL5UIe ... nOI6A7WuNU

The changes are described in the newly included changelog.

To answer your question, yes, 5 vs 1 TBs can be generated (it's not possible to do so yet, but I'm working on it), but existing sources to the probing code of engines must be updated as well to include them.
Dann Corbit
Posts: 12828
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: 6-men (64 bit) Nalimov EGTB generator

Post by Dann Corbit »

MOBMAT wrote: Wed Jan 28, 2026 4:31 am Dan, all good reasons.
I didn't realize 5v1 files were missing.
I would definitely like to add them to my collection.
As for 7 man Nalimov files, wow, that would be amazing. But to quote Jaws....you're gonna need a bigger hard drive!

If the missing 6-man files are created, would the existing engines, such as Houdini be able to use them or does it require mods to the existing code base?

V
The missing 5 v 1 files will not add to engine strength in any meaningful way. The main desire for these files is statistics. How many draws are there in K v KNNQP ? for example.

There may be some very odd quirky draws, but I guess any decent engine will find them anyway just with search.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
syzygy
Posts: 5895
Joined: Tue Feb 28, 2012 11:56 pm

Re: 6-men (64 bit) Nalimov EGTB generator

Post by syzygy »

Dann Corbit wrote: Thu Jan 29, 2026 10:14 am
MOBMAT wrote: Wed Jan 28, 2026 4:31 am Dan, all good reasons.
I didn't realize 5v1 files were missing.
I would definitely like to add them to my collection.
As for 7 man Nalimov files, wow, that would be amazing. But to quote Jaws....you're gonna need a bigger hard drive!

If the missing 6-man files are created, would the existing engines, such as Houdini be able to use them or does it require mods to the existing code base?

V
The missing 5 v 1 files will not add to engine strength in any meaningful way. The main desire for these files is statistics. How many draws are there in K v KNNQP ? for example.

There may be some very odd quirky draws, but I guess any decent engine will find them anyway just with search.
The main practical reason for generating 5v1 would be for generating 5v2.
Juan P. Naar
Posts: 69
Joined: Fri May 15, 2020 3:55 pm
Full name: Juan Pablo Naar

Re: 6-men (64 bit) Nalimov EGTB generator

Post by Juan P. Naar »

Dann Corbit
Posts: 12828
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: 6-men (64 bit) Nalimov EGTB generator

Post by Dann Corbit »

Thanks for the 5v1
I have a friend who has been yearning for the statistics for those files.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.