Stockfish 15.1 is ready

[Werewolf]

After 568 games on CCRL 4015 one thread, it is +28 elo (bayeselo) and +37 Ordo elo. I'd say those are good gains for what was already an incredible engine.

https://www.chessengeria.com/post/stoc ... 1-released

Stockfish 15.1 compiled for Macs is noticeably stronger than its predecessor.

Apple's security prevents me from starting SF 15.1 from this site, saying it cannot check it.
Is there a way round this?

[Werewolf]

my version for Mac M1

https://www.mediafire.com/file/ggx10fdq ... 1.zip/file

I get the same issue here. MacOS is saying the software needs to be updated to run for security reasons. How can this be overridden?

[Modern Times]

One way the SF Dev team could show they care about Apple Silicon is by releasing compiles as standard for it, as they already do for Windows and Linux

Well, they are passionate about open source, and Apple is the polar opposite. As closed and locked-in as you can possibly get. Why would they care about Apple? The only reason they should is that they also respect freedom of choice.

[Modern Times]

We have a regression of approx. 20 ELO after 800 games
(only!) with shorter TC
https://cegt.forumieren.com/t1830-testi ... ish-15-1nn

That is disappointing, what hardware, book and exe was used ?

[Dariusz]

After 568 games on CCRL 4015 one thread, it is +28 elo (bayeselo) and +37 Ordo elo. I'd say those are good gains for what was already an incredible engine.

https://www.chessengeria.com/post/stoc ... 1-released

Stockfish 15.1 compiled for Macs is noticeably stronger than its predecessor.

Apple's security prevents me from starting SF 15.1 from this site, saying it cannot check it.
Is there a way round this?

Of course: https://support.apple.com/en-us/HT202491
(this is standard protection on newer macOS systems).

If you downloaded the engine from a safe source, e.g. https://chessengeria.com, you can run it without any worries

[Werewolf]

After 568 games on CCRL 4015 one thread, it is +28 elo (bayeselo) and +37 Ordo elo. I'd say those are good gains for what was already an incredible engine.

https://www.chessengeria.com/post/stoc ... 1-released

Stockfish 15.1 compiled for Macs is noticeably stronger than its predecessor.

Apple's security prevents me from starting SF 15.1 from this site, saying it cannot check it.
Is there a way round this?

Of course: https://support.apple.com/en-us/HT202491
(this is standard protection on newer macOS systems).

If you downloaded the engine from a safe source, e.g. https://chessengeria.com, you can run it without any worries

Thanks, but that's where I did download it from and it was blocked. The latest version of Ventura doesn't have the options listed in your tech support article, sadly.

[Werewolf]

Sorry for another post but I think this will affect quite a few people.

I've spent quite a bit of time on the phone with Apple support who were fairly obstructive. It seems clear they want every piece of software to go via them.
The security settings have changed in the latest MacOS update and certain options that were available are now not.

However, by opening Terminal and typing

sudo spctl –master-disable

The option to allow Stockfish re-appears in Security and Privacy. Then it works.

Two people on this thread have contributed their own SF 15.1 compiles. On the M2 both compiles get 4 MN/s running on 4 threads (i.e. Avalanche Performance Cores) and on 8 threads (i.e. including 4 Blizzard Efficiency Cores) it's about 5.7 MN/s.

[Wolfgang]

.....
That is disappointing, what hardware, book and exe was used ?

Jörg [J.B.] uses "11th Gen Intel(R) Core (TM) i5-11400H" (Notebook), 8moves testsuite by Stefan Pohl, avx2-compile

My (Wolfgang, [W.B.]) games are played on Ryzen 9 3950x (3,6 GHZ) and Ryzen 5 5600g (3,9 GHZ), same testsuite but cut off after three full moves, all doubles deleted after cut-off.
3950x: avx2
5600g: bmi2

Hardware on our testers page, http://www.cegt.net/testers/testers.html, is somewhat outdated, please ignore. Hope we can update this soon

[Modern Times]

I've spent quite a bit of time on the phone with Apple support who were fairly obstructive. It seems clear they want every piece of software to go via them.

Are you surprised by that ? Typical Apple behaviour from what I've heard. Lock you in, take away your freedom to do things how you want to do them, and make you do them their way or not at all. No wonder the SF team do not seem keen to support Apple, it goes against everything they believe in with open source philosophy.

[Werewolf]

I've spent quite a bit of time on the phone with Apple support who were fairly obstructive. It seems clear they want every piece of software to go via them.

Are you surprised by that ? Typical Apple behaviour from what I've heard. Lock you in, take away your freedom to do things how you want to do them, and make you do them their way or not at all. No wonder the SF team do not seem keen to support Apple, it goes against everything they believe in with open source philosophy.

I suppose not but I am saddened because I do think they've achieved something with their hardware which could benefit the chess world (for once). The decision to not release SF Silicon Apple builds seems to me a little like cutting one's nose to spite one's face.
But I can understand the anti-Apple sentiment.