Hi!
Loved this feature of persistent analysis already way back then, had the engine from here

https://www.open-chess.org/viewtopic.php?p=20589#p20589

It came with a text called About Persistent Hash, lately I read it again and gave this one part of it a try, a hadn't done so far:

COMMAND LINE ...

the new vesrion can't solve this :-(

1r3rk1/3bbppp/1qn2P2/p2pP1P1/3P4/2PB1N2/6K1/qNBQ1R2 w - - 0 1

You'r right, that's regression, but it's one that SF dev. 240303 (the last one I downloaded) shares with latest Cool Iris.
SF 16.1 with 30 threads of 16x3.5GHz and 8G hash:

1r3rk1/3bbppp/1qn2P2 ...

Anton101 wrote: Thu Mar 14, 2024 1:48 am Cool Iris 12.10: https://pixeldrain.com/u/LMF7vwvX

Cool Iris 12.10-D3072: https://pixeldrain.com/u/uZw9AqV7

Thanks for reintroducing internal MultiPV

Manto stated his learning needs no defragmentation.

There was a discussion about that between Andrea and Khalid once in a while ago at Talkchess about the item:

https://talkchess.com/viewtopic.php?p=888092&hilit=experience#p888092

I know you know the thread participating in it on your own way ...

you only have to type engine.exe defrag nameoftheexpfile.exp to defrag the learning file!

C:\...>Brainlearn26.5-x86-64-bmi2.exe defrag experience.exp
Brainlearn 26.5 by K. Kiniama, A. Manzo and the Brainlearn developers (see AUTHORS file)
Unknown command: 'defrag experience.exp '. Type help for ...

you only have to type engine.exe defrag nameoftheexpfile.exp to defrag the learning file!

C:\...>Brainlearn26.5-x86-64-bmi2.exe defrag experience.exp
Brainlearn 26.5 by K. Kiniama, A. Manzo and the Brainlearn developers (see AUTHORS file)
Unknown command: 'defrag experience.exp '. Type help for ...

Anton101 wrote: Mon Mar 11, 2024 10:16 pm If you like, I can place a .exp file of Cool Iris for free download and you can try it.

Thanks, there is one in the download I got, but I'm rather creating a new one already. I know the way of learning of BrainLearn (ShashChess) quite well anyhow,

I made the decision not to continue using a defragmentation tool from another engine, like SugaR or any other engine. The BrainLearn learning system does not need any tools for this purpose. I feel that it is a step of greater independence for Cool Iris.

On the other hand, I can add the Random ...

Cool Iris is a derivative of corchess, adding the stockfish dev patches 070324, uses the Q-Learning code from BrainLearn 27 with the improved CTG/Polyglot code by Khalid, Omar.

Hi!
Thanks for new version but if CoolIris now uses BrainLearn- code without possibility to choose names for .exp ...

Detonator74 wrote: Mon Nov 13, 2023 12:29 pm Fritz 19 is released tomorrow!

...and rest of today only (as well al other cb- items) with 25% discount,