ShashChess

Discussion of anything and everything relating to chess playing software and machines.

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peter
Posts: 3186
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: ShashChess

Post by peter »

amchess wrote: Fri Jul 31, 2020 8:14 pm Hi, Peter.
Those options are used in the eval, but also in the search.
So, they change they engine's behavior.
I see, Andrea. Looking forward to test it.
Thanks again.
Peter.
peter
Posts: 3186
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: ShashChess

Post by peter »

peter wrote: Fri Jul 31, 2020 8:32 pm Looking forward to test it.
BTW sse4.2- compile again doesn't have UCI- option of EvalFile, sse3-popcnt works. Same with BrainLearn 1.1.
Peter.
amchess
Posts: 323
Joined: Tue Dec 05, 2017 2:42 pm

Re: ShashChess

Post by amchess »

peter wrote: Fri Jul 31, 2020 9:28 pm
peter wrote: Fri Jul 31, 2020 8:32 pm Looking forward to test it.
BTW sse4.2- compile again doesn't have UCI- option of EvalFile, sse3-popcnt works. Same with BrainLearn 1.1.
Yes, an error by me: too much executables and not a lot time!
I corrected.
Thanks.
peter
Posts: 3186
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: ShashChess

Post by peter »

amchess wrote: Fri Jul 31, 2020 9:52 pm
peter wrote: Fri Jul 31, 2020 9:28 pm
peter wrote: Fri Jul 31, 2020 8:32 pm Looking forward to test it.
BTW sse4.2- compile again doesn't have UCI- option of EvalFile, sse3-popcnt works. Same with BrainLearn 1.1.
Yes, an error by me: too much executables and not a lot time!
I corrected.
Sorry to bother you, but sse4.2 still doesn't have EvalFile.
:oops:
Peter.
amchess
Posts: 323
Joined: Tue Dec 05, 2017 2:42 pm

Re: ShashChess

Post by amchess »

peter wrote: Sat Aug 01, 2020 9:24 am
amchess wrote: Fri Jul 31, 2020 9:52 pm
peter wrote: Fri Jul 31, 2020 9:28 pm
peter wrote: Fri Jul 31, 2020 8:32 pm Looking forward to test it.
BTW sse4.2- compile again doesn't have UCI- option of EvalFile, sse3-popcnt works. Same with BrainLearn 1.1.
Yes, an error by me: too much executables and not a lot time!
I corrected.
Sorry to bother you, but sse4.2 still doesn't have EvalFile.
:oops:
No problems. I'm in holidays. I'll when I'll can back
amchess
Posts: 323
Joined: Tue Dec 05, 2017 2:42 pm

Re: ShashChess

Post by amchess »

peter
Posts: 3186
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: ShashChess

Post by peter »

Thanks, Andrea!
NNUE- Eval is Hybrid now too, isn't it?
Latest Cfish has the fine option to choose between "Pure" and "Hybrid" NNUE. That's a big help for analysis, as far as I'm concerned.
Peter.
amchess
Posts: 323
Joined: Tue Dec 05, 2017 2:42 pm

Re: ShashChess

Post by amchess »

peter wrote: Wed Aug 19, 2020 11:16 pm
Thanks, Andrea!
NNUE- Eval is Hybrid now too, isn't it?
Latest Cfish has the fine option to choose between "Pure" and "Hybrid" NNUE. That's a big help for analysis, as far as I'm concerned.
There is the option "Use NNUE" and the behavior is exactly the same as Stockfish.
Andrea
peter
Posts: 3186
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: ShashChess

Post by peter »

amchess wrote: Wed Aug 19, 2020 11:41 pm
peter wrote: Wed Aug 19, 2020 11:16 pm
Thanks, Andrea!
NNUE- Eval is Hybrid now too, isn't it?
Latest Cfish has the fine option to choose between "Pure" and "Hybrid" NNUE. That's a big help for analysis, as far as I'm concerned.
There is the option "Use NNUE" and the behavior is exactly the same as Stockfish.
Andrea
I know, Andrea. SF has had an hybrid- eval patch at begin of August. Since then NNUE- eval is used only in more or less balanced positions decided by a treshold- boundary.
Positions like the one (much discussed here in context to that hybrid- patch) from the game nr.5 A0-SF8 2017 21.Bg5!

rn3r1k/pn1p1ppq/bpp4p/7P/4N1Q1/6P1/PP3PB1/R1B1R1K1 w - - 0 21

are'nt solved with hybrid- eval, with NNUE they are.

Jörg Oster made a fork for SF NNUE-always even because of that known issue (of course not for that single one position only, but it's one of them to see, if NNUE or hard coded evel is used, even if Use NNUE is checked).

http://talkchess.com/forum3/viewtopic.p ... 66#p855366
Peter.
amchess
Posts: 323
Joined: Tue Dec 05, 2017 2:42 pm

Re: ShashChess

Post by amchess »

Ah ok.
Now I understand.
For now, I'm aligned with stockfish, but I can easily add a similar button.
Thanks for the information.
Andrea