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Re: ShashChess

Posted: Fri Jul 31, 2020 8:32 pm
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.

Re: ShashChess

Posted: Fri Jul 31, 2020 9:28 pm
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.

Re: ShashChess

Posted: Fri Jul 31, 2020 9:52 pm
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.

Re: ShashChess

Posted: Sat Aug 01, 2020 9:24 am
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:

Re: ShashChess

Posted: Sun Aug 02, 2020 2:33 pm
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

Re: ShashChess

Posted: Wed Aug 19, 2020 10:50 pm
by amchess

Re: ShashChess

Posted: Wed Aug 19, 2020 11:16 pm
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.

Re: ShashChess

Posted: Wed Aug 19, 2020 11:41 pm
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

Re: ShashChess

Posted: Thu Aug 20, 2020 12:17 am
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

Re: ShashChess

Posted: Thu Aug 20, 2020 12:42 am
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