Stockfish 8 SE (Special Edition)

[MikeB]

Code: Select all

400 rounds and 1200 games completed...
time control: 900+15
Date: 11/04/16 : 01:11:24
1200 game(s) loaded
Rank Name                      Rating   Δ     +    -     #     Σ    Σ%     W    L    D   W%    =%   OppR 
---------------------------------------------------------------------------------------------------------
   1 Stockfish 8se              3103   0.0    9    9   800  405.5  50.7  146  135  519  18.2  64.9  3098 
   2 Stockfish 8 64 POPCNT      3099   4.4    9    9   800  397.0  49.6  139  145  516  17.4  64.5  3101 
   3 Stockfish MateFinder 8 6   3098   0.4    9    9   800  397.5  49.7  135  140  525  16.9  65.6  3101 
---------------------------------------------------------------------------------------------------------

Stockfish 8 SE (Special Edition) - a fork of the Official Stockfish, has some features and functions that are not part of the official Stockfish source. Many of these changes were derived from the Stockfish team from pulled requests which were not committed , but which were interesting to me and subsequently incorporated in this unofficial fork of Stockfish.

As one can note above, none of these changes appear to be detrimental to Stockfish playing strength. New in this update , the "study" option from SF Matefinder by Joesph Ellis was added - based on some of the posts here , many of you should enjoy this option. So when one is looking at a position you can quickly get a second opinion without reloading an engine , just check the uci menu box for "study" and you are on your way. Also added the "Clean Search" uci option from Ellis' Matefinder. The "fast play" when mate is found is now a uci option, by default it is turned on. If you want SF 8 SE to keep searching for a shorter mate , check the uci "fast play" menu box off.

And naturally, this has the other features from previous forks, including Multi-PV when using tb's (submitted by Ronald de Man) , the uci menu option "throttle" to simulate a slow pc from the 90's, select elo engine strength from the uci menu, which utilizes the 40 different skill levels ( official SF has 20 skill levels) and the fast play when mate is found mentioned above.

One can check out the "study" option from the command line "setoption name Study value true" and then type bench - the bench nodes will be significantly higher. On any position , this will provide a different perspective and, sometimes, a very interesting "second opinion" - very nice work by Joseph Ellis.

Official Stockfish Github webpage: https://github.com/official-stockfish/Stockfish

MB's Forked Stockfish Github webpage (Stockfish 8 SE Source): https://github.com/MichaelB7/Stockfish

MB's MacOS Binary Stockfish-8se (Special Edition) compiled from MB's Forked Stockfish: https://github.com/MichaelB7/Stockfish/ ... _MacOS.zip

[maxdeg]

Thanks Mike !

[MikeB]

ran a gauntlet with the "study" option on:

Code: Select all

400 rounds and 1200 games completed...
time control: 900+15
Date: 11/04/16 : 03:26:48
2400 game(s) loaded
Rank Name                      Rating   Δ     +    -     #     Σ    Σ%     W    L    D   W%    =%   OppR 
---------------------------------------------------------------------------------------------------------
   1 Stockfish 8se              3108   0.0    9    9  1200  619.0  51.6  235  197  768  19.6  64.0  3097 
   2 Stockfish MateFinder 8 6   3107   1.5    9    9  1200  616.0  51.3  231  199  770  19.2  64.2  3098 
   3 Stockfish 8 64 POPCNT      3105   1.7    9    9  1200  610.5  50.9  224  203  773  18.7  64.4  3098 
   4 Stockfish 8se-Study        3080  25.0    9    9  1200  554.5  46.2  179  270  751  14.9  62.6  3107 
---------------------------------------------------------------------------------------------------------

[fantasmadel50]

I find the Windows version, anyone can upload or download explain how.? Thank you very much

[tpoppins]

Windoze MinGW compiles:

TinyUpload

Code: Select all

stockfish-8SE-w32-old_tp.exe .... for old Win32 systems
stockfish-8SE-w32-sse_tp.exe .... for Win32 systems with SSE
stockfish-8SE-x64_tp.exe ........ for old x64 systems
stockfish-8SE-x64-popcnt_tp.exe . for 'modern' x64 systems with POPCNT
stockfish-8SE-x64-bmi2_tp.exe ... for Haswell (and newer) x64 systems

The w32 compiles have been built and tested on WinXP+SP3, the rest 
on Win7 x64 Pro. The BMI2 compile has not been tested and may not 
work.

[fantasmadel50]

Thank you very much for the links, unfortunately gives me network error when downloading.

[Jimbo I]

Thank you very much for the links, unfortunately gives me network error when downloading.

That also happened to me, but on the 3rd try, the download worked anyway.

[Jimbo I]

Thank you very much for the links, unfortunately gives me network error when downloading.

That also happened to me, but on the 3rd try, the download worked anyway.

Sorry, I got this download confused with another one. The SF8 SE download went good for me.

[MikeB]

Windoze MinGW compiles:

TinyUpload

Code: Select all

stockfish-8SE-w32-old_tp.exe .... for old Win32 systems
stockfish-8SE-w32-sse_tp.exe .... for Win32 systems with SSE
stockfish-8SE-x64_tp.exe ........ for old x64 systems
stockfish-8SE-x64-popcnt_tp.exe . for 'modern' x64 systems with POPCNT
stockfish-8SE-x64-bmi2_tp.exe ... for Haswell (and newer) x64 systems

The w32 compiles have been built and tested on WinXP+SP3, the rest 
on Win7 x64 Pro. The BMI2 compile has not been tested and may not 
work.

If anybody could put the links on dropbox, I will grab them and put the Windows exe's on GitHub. The link provided above is asking me for credit card info which I am reluctant to provide. Not that I'm saying they are not legitimate , but it's just exposing your credit card info to one more port for a hacker to hack.

[Jimbo I]

https://www.sendspace.com/file/ut6t9r

Just put the Sendspace link into your browser. When the page comes up, just click on the blue "Download" button.

(Odd, TinyUpload didn't ask me for any credit card information.)