SF6 has been released

zamar · Post by **zamar** » Tue Jan 27, 2015 8:45 pm

SF6 has been released. Key features:

* Support for syzygy tablebases
* ELO improvement, around +50 ELO in self-play against SF5

It will likely take a few days to prepare the official binaries. Meanwhile you can either download a version compiled by abrok.eu or compile it yourself:
* http://abrok.eu/stockfish/
* https://github.com/official-stockfish/Stockfish

On behalf of all Stockfish developers and contributors,
Joona Kiiski

Modern Times · Post by **Modern Times** » Tue Jan 27, 2015 8:56 pm

Thanks. So this is RC3 now released officially ?

zamar · Post by **zamar** » Tue Jan 27, 2015 9:02 pm

Modern Times wrote:Thanks. So this is RC3 now released officially ?

Yes, functionally "SF6 RC3" = "SF6". No changes were made after release of "SF6 RC3"

Leto · Post by **Leto** » Tue Jan 27, 2015 9:21 pm

Thanks, testing now for CeGT 40/4.

Werner · Post by **Werner** » Tue Jan 27, 2015 9:59 pm

Many thanks to the whole Stockfish-Team!
I wish you a lot of success.

Graham Banks · Post by **Graham Banks** » Wed Jan 28, 2015 12:01 am

Thanks to the Stockfish team.

Gelo · Post by **Gelo** » Wed Jan 28, 2015 12:02 am

Thank you Stockfish Team for this wonderful and extremely powerful chess engine ! have a nice day to all you guys! God bless you all!

deefree49 · Post by **deefree49** » Wed Jan 28, 2015 12:42 am

Congratulations! I think it is an important achievement. I believe in the idea of cooperation for the sake of advancing science without concern for monetary gain. It is, IMHO a high expression of the best of what we aspire to.

Thank you so much for your hard work! I love chess and computer chess holds an unending fascination for me. So you have made this old guy happier today.

I wish continued success for the whole Stockfish team. Also, kudos to all the testers who freely contributed their time and resources to the project.

Very nice!

shrapnel · Post by **shrapnel** » Wed Jan 28, 2015 3:35 am

zamar wrote:Yes, functionally "SF6 RC3" = "SF6". No changes were made after release of "SF6 RC3"

Hmmm...not too sure if that's a good thing.
RC3 was giving wildly varying evaluations for some positions, even more so than what is normal for Stockfish !

IWB · Post by **IWB** » Wed Jan 28, 2015 7:25 am

deefree49 wrote:Congratulations! I think it is an important achievement. I believe in the idea of cooperation for the sake of advancing science without concern for monetary gain. It is, IMHO a high expression of the best of what we aspire to.

Just to mention a downside: It is leaving some kind of desert or burned ground. Nearly no comercial engines anymore, nothing to choose from ...

Just my 2 cents

Nonetheless, thanks for that new and again very strong version!

Ingo

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