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Best tablebase algorithms for 6-men server?
Posted: Sat Apr 15, 2017 3:15 pm
by kinderchocolate
I want to setup a 6-men server for tablebase queries. This has nothing to do with chess engine, it's just be a server. I want to get WDL and distance-to-mate information for each position I query. What's the best tablebase scheme?
I believe
https://syzygy-tables.info uses the Gaviota for DTM. Do we have any open-source 6-men DTM tablebase?
Re: Best tablebase algorithms for 6-men server?
Posted: Sat Apr 15, 2017 4:43 pm
by yurikvelo
kinderchocolate wrote:I want to setup a 6-men server for tablebase queries. This has nothing to do with chess engine, it's just be a server. I want to get WDL and distance-to-mate information for each position I query. What's the best tablebase scheme?
Nalimov (~400 Gb partial set *.emd, 1151 Gb full set) has DTM, but lacks DTZ
Syzygy (~150 Gb *.rtb*) has DTZ, but lacks DTM
http://tablebase.sesse.net/
kinderchocolate wrote:
I believe
https://syzygy-tables.info uses the Gaviota for DTM. Do we have any open-source 6-men DTM tablebase?
Where you see DTM? I see only DTZ for 6-men.
DTM only shown after conversion to 5-men
Re: Best tablebase algorithms for 6-men server?
Posted: Sat Apr 15, 2017 6:20 pm
by Nordlandia
I've started a thread on asmfish github page on possible gaviota egtb implementation, so evaluation show mate in x instead of large number such as 128.xx ->
More information can be found here ->
https://github.com/lantonov/asmFish/issues/44
Re: Best tablebase algorithms for 6-men server?
Posted: Wed Apr 19, 2017 5:35 pm
by kinderchocolate
Sorry for the late response, it was Easter!
Does Nalimov tablebase requires a license for probing? Syzygy is out of question because I want DTM not DTZ.
What about Scorpio? Can we do 6-men DTM there? ~1000GB shouldn't be a problem for a server.
yurikvelo wrote:kinderchocolate wrote:I want to setup a 6-men server for tablebase queries. This has nothing to do with chess engine, it's just be a server. I want to get WDL and distance-to-mate information for each position I query. What's the best tablebase scheme?
Nalimov (~400 Gb partial set *.emd, 1151 Gb full set) has DTM, but lacks DTZ
Syzygy (~150 Gb *.rtb*) has DTZ, but lacks DTM
http://tablebase.sesse.net/
kinderchocolate wrote:
I believe
https://syzygy-tables.info uses the Gaviota for DTM. Do we have any open-source 6-men DTM tablebase?
Where you see DTM? I see only DTZ for 6-men.
DTM only shown after conversion to 5-men
Re: Best tablebase algorithms for 6-men server?
Posted: Wed Apr 19, 2017 5:43 pm
by kinderchocolate
I understand Gaviota allows only up to 5-men DTM, but I want 6-men. If I can't find a reliable tablebase technology, I may also run a chess engine like how you describe in the link.
Nordlandia wrote:I've started a thread on asmfish github page on possible gaviota egtb implementation, so evaluation show mate in x instead of large number such as 128.xx ->
More information can be found here ->
https://github.com/lantonov/asmFish/issues/44
Re: Best tablebase algorithms for 6-men server?
Posted: Wed Apr 19, 2017 6:03 pm
by Nordlandia
Is your server intended for private usage only, or can it be accessed from around the world?
Nalimov EGTB ->
«The license policy requires explicit permission by Eugene Nalimov»
https://chessprogramming.wikispaces.com ... Tablebases
---
Gaviota is open source so it can be added to Asmfish.
https://chessprogramming.wikispaces.com ... Tablebases
Re: Best tablebase algorithms for 6-men server?
Posted: Wed Apr 19, 2017 6:10 pm
by hgm
kinderchocolate wrote:What about Scorpio?
Scorpio is WDL, not DTM.
Re: Best tablebase algorithms for 6-men server?
Posted: Wed Apr 19, 2017 6:18 pm
by kinderchocolate
The server is for statistical research in chess. Do I need a license? Where to ask for a license?
Re: Best tablebase algorithms for 6-men server?
Posted: Wed Apr 19, 2017 6:44 pm
by Nordlandia
Re: Best tablebase algorithms for 6-men server?
Posted: Thu Apr 20, 2017 6:47 am
by jshriver
kinderchocolate wrote:If you're interested in downloading various EGTB data sets feel free to check out my site. Verified and been up for years.
http://oics.olympuschess.com/tracker