Obsidian (DEV)

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

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AndrewGrant
Posts: 1945
Joined: Tue Apr 19, 2016 6:08 am
Location: U.S.A
Full name: Andrew Grant

Re: Obsidian (DEV)

Post by AndrewGrant »

tmokonen wrote: Sat Mar 01, 2025 10:48 pm
Jouni wrote: Sat Mar 01, 2025 9:52 pm BTW Obsidian is the weakest engine I have installed. What's the point with weaker engines? I have no interest.
Yah, 28 Elo behind Stockfish is "weak". What a stupid post.
The head to head is probably 4 times that difference lol.
gabe_obsidian
Posts: 16
Joined: Fri Jan 26, 2024 10:21 pm
Full name: Gabriele Lombardo

Re: Obsidian (DEV)

Post by gabe_obsidian »

Jouni wrote: Sat Mar 01, 2025 9:52 pm BTW Obsidian is the weakest engine I have installed. What's the point with weaker engines? I have no interest.
Do you have "installed" any engine other than stockfish and obsidian btw?
thats the only thing im interested at, upon reading your message
tmokonen
Posts: 1341
Joined: Sun Mar 12, 2006 6:46 pm
Location: Kelowna
Full name: Tony Mokonen

Re: Obsidian (DEV)

Post by tmokonen »

AndrewGrant wrote: Sat Mar 01, 2025 10:49 pm
tmokonen wrote: Sat Mar 01, 2025 10:48 pm
Jouni wrote: Sat Mar 01, 2025 9:52 pm BTW Obsidian is the weakest engine I have installed. What's the point with weaker engines? I have no interest.
Yah, 28 Elo behind Stockfish is "weak". What a stupid post.
The head to head is probably 4 times that difference lol.
I was using the 40/2 CCRL rating list for my number, but yes, I realize that different testing methodologies have different results.

Moderation: Removed personal insult. Charter reminder: 3. Do not contain personal and/or libelous attacks on others.
jefk
Posts: 890
Joined: Sun Jul 25, 2010 10:07 pm
Location: the Netherlands
Full name: Jef Kaan

Re: Obsidian (DEV)

Post by jefk »

the most recent SF versions seem to be a bit better again,
end 2024 i preferred Obsidian rather than Sf because the latter
more often indicated 0.0 in some (imo) unclear endgame positions.

As it stands now, for correspondence chess it doesn't matter so much
which engine is used. When starting a new tourn, i usually choose
slightly off beat openings, hoping my opponent will go wrong (when
looking to an opening book, rather than doing more in depth analysis).
Jouni
Posts: 3572
Joined: Wed Mar 08, 2006 8:15 pm
Full name: Jouni Uski

Re: Obsidian (DEV)

Post by Jouni »

The latest Obsidian commit: "disable bench". Is this making engine stronger :) ?
Jouni
AndrewGrant
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Joined: Tue Apr 19, 2016 6:08 am
Location: U.S.A
Full name: Andrew Grant

Re: Obsidian (DEV)

Post by AndrewGrant »

Jouni wrote: Mon Mar 10, 2025 10:02 am The latest Obsidian commit: "disable bench". Is this making engine stronger :) ?
Gabe just being lazy about unifying the bench between avx, avx2, and avx512, due to floats.
He is just by-passing OpenBench benching mechanism.
rulleeeee
Posts: 6
Joined: Thu Dec 08, 2022 5:16 pm
Full name: Grzegorz Piskorek

Re: Obsidian (DEV)

Post by rulleeeee »

Where can I download the nn network? Is the network already installed in the engine?