Stockfish 11

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snicolet
Posts: 4
Joined: Thu Jul 05, 2018 8:04 pm
Full name: Stephane NICOLET

Stockfish 11

Post by snicolet » Sat Jan 18, 2020 12:59 am

It is our pleasure to release Stockfish 11 to our fans and supporters.

Downloads are freely available at http://stockfishchess.org/download/

This version 11 of Stockfish is 50 Elo stronger than the last version, and
150 Elo stronger than the version which famously lost a match to AlphaZero
two years ago. This makes Stockfish the strongest chess engine running on
your smartphone or normal desktop PC, and we estimate that on a modern four
cores CPU, Stockfish 11 could give 1:1000 time odds to the human chess champion
having classical time control, and be on par with him. More specific data,
including nice cumulative curves for the progression of Stockfish strength
over the last seven years, can be found on [our progression page][1], at
[Stefan Pohl site][2] or at [NextChessMove][3].

In October 2019 Stockfish has regained its crown in the TCEC competition,
beating in the superfinal of season 16 an evolution of the neural-network
engine Leela that had won the previous season. This clash of style between an
alpha-beta and an neural-network engine produced spectacular chess as always,
with Stockfish [emerging victorious this time][0].

Compared to Stockfish 10, we have made hundreds of improvements to the
[codebase][4], from the evaluation function (improvements in king attacks,
middlegame/endgame transitions, and many more) to the search algorithm (some
innovative coordination methods for the searching threads, better pruning of
unsound tactical lines, etc), and fixed a couple of bugs en passant.

Our testing framework [Fishtest][5] has also seen its share of improvements
to continue propelling Stockfish forward. Along with a lot of small enhancements,
Fishtest has switched to new SPRT bounds to increase the chance of catching Elo
gainers, along with a new testing book and the use of pentanomial statistics to
be more resource-efficient.

Overall the Stockfish project is an example of open-source at its best, as
its buzzing community of programmers sharing ideas and daily reviewing their
colleagues' patches proves to be an ideal form to develop innovative ideas for
chess programming, while the mathematical accuracy of the testing framework
allows us an unparalleled level of quality control for each patch we put in
the engine. If you wish, you too can help our ongoing efforts to keep improving
it, just [get involved][6] :-)

Stockfish is also special in that every chess fan, even if not a programmer,
[can easily help][7] the team to improve the engine by connecting their PC to
Fishtest and let it play some games in the background to test new patches.
Individual contributions vary from 1 to 32 cores, but this year Bojun Guo
made it a little bit special by plugging a whole data center during the whole
year: it was a vertiginous experience to see Fishtest spikes with 17466 cores
connected playing [25600 games/minute][8]. Thanks Guo!

The Stockfish team

[0]: <http://mytcecexperience.blogspot.com/20 ... 1-100.html>
[1]: <https://github.com/glinscott/fishtest/w ... sion-Tests>
[2]: <https://www.sp-cc.de/index.htm>
[3]: <https://nextchessmove.com/dev-builds>
[4]: <https://github.com/official-stockfish/Stockfish>
[5]: <https://tests.stockfishchess.org/tests>
[6]: <https://stockfishchess.org/get-involved/>
[7]: <https://github.com/glinscott/fishtest/wiki>
[8]: <https://groups.google.com/forum/?fromgr ... %5B1-25%5D>

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CMCanavessi
Posts: 910
Joined: Thu Dec 28, 2017 3:06 pm
Location: Argentina

Re: Stockfish 11

Post by CMCanavessi » Sat Jan 18, 2020 2:03 am

Looks like the website is still not updated, still showing SF 10 and 11 nowhere to be found. Will just have to wait a bit :mrgreen:
Follow my tournament and some Leela gauntlets live at http://twitch.tv/ccls

BrendanJNorman
Posts: 2355
Joined: Sun Feb 07, 2016 11:43 pm
Full name: Brendan J Norman

Re: Stockfish 11

Post by BrendanJNorman » Sat Jan 18, 2020 2:19 am

CMCanavessi wrote:
Sat Jan 18, 2020 2:03 am
Looks like the website is still not updated, still showing SF 10 and 11 nowhere to be found. Will just have to wait a bit :mrgreen:
Look here brother>> http://abrok.eu/stockfish/

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CMCanavessi
Posts: 910
Joined: Thu Dec 28, 2017 3:06 pm
Location: Argentina

Re: Stockfish 11

Post by CMCanavessi » Sat Jan 18, 2020 2:22 am

BrendanJNorman wrote:
Sat Jan 18, 2020 2:19 am
CMCanavessi wrote:
Sat Jan 18, 2020 2:03 am
Looks like the website is still not updated, still showing SF 10 and 11 nowhere to be found. Will just have to wait a bit :mrgreen:
Look here brother>> http://abrok.eu/stockfish/
Yeah, I know, but your average joe might not.
Follow my tournament and some Leela gauntlets live at http://twitch.tv/ccls

Nay Lin Tun
Posts: 651
Joined: Mon Jan 16, 2012 5:34 am

Re: Stockfish 11

Post by Nay Lin Tun » Sat Jan 18, 2020 3:57 am

Still wondering who will win in case SF vs Lc0 actually meet in TCEC S16 Final.. SF did not beat Leela in final. :twisted:

h1a8
Posts: 441
Joined: Fri Jun 04, 2010 5:23 am

Re: Stockfish 11

Post by h1a8 » Sat Jan 18, 2020 4:14 am

To the author and developer of Stockfish for ios
Please can you update the engine to Stockfish 11
And add 1 and 2 move analysis arrows (similar to the droidfish from Android).


Thanks.

User avatar
Eduard
Posts: 282
Joined: Fri Oct 26, 2018 10:58 pm
Location: Germany
Full name: Eduard Nemeth
Contact:

Re: Stockfish 11

Post by Eduard » Sat Jan 18, 2020 4:50 am

I get the message, it is infected with a virus (modern.exe 180120).

Virus is IDP.ARES.Generic

Hai
Posts: 548
Joined: Sun Aug 04, 2013 11:19 am

Re: Stockfish 11

Post by Hai » Sat Jan 18, 2020 8:12 am

h1a8 wrote:
Sat Jan 18, 2020 4:14 am
To the author and developer of Stockfish for ios
Please can you update the engine to Stockfish 11
Stockfish 11 is not for iOS.
For iOS, it is ASMfish and Cfish and get +50% more kn/s on iOS!!
Help is needed.

For Android, it is ARMfish.
ARMfish 11 is also released:)

Modern Times
Posts: 2612
Joined: Thu Jun 07, 2012 9:02 pm

Re: Stockfish 11

Post by Modern Times » Sat Jan 18, 2020 6:38 pm

snicolet wrote:
Sat Jan 18, 2020 12:59 am
This version 11 of Stockfish is 50 Elo stronger than the last version,
I think it might be better than that on the ratings lists, but let's see. The error margins are big with a small-ish number of games, so not conclusive, but Stockfish 2019-12-10 was already about +70 Elo over Stockfish 10 at CCRL 40/15.
.

Opinions expressed here are my own, and not necessarily those of the CCRL Group.

Geonerd
Posts: 74
Joined: Fri Mar 10, 2017 12:44 am

Re: Stockfish 11

Post by Geonerd » Sat Jan 18, 2020 8:03 pm

Thank you! :D

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