Lichess Analysis Depth

In a study, post-game analysis, etc. there is an option to "request a server-side computer analysis".

Does anybody know at which depth that analysis is conducted?

My understanding is that 2 seconds are allocated for each analyzed move, thus giving inconsistent analysis depths, however I may be mistaken.

Hi
In fact the depth for each move is pretty much the same, lower than 21~23, but the analysis time depends on your cpu.
If you want a better analysis, you should analyse each move manually and enable infinite depth (this can go up to 99 or until you stop it, but for reaching 99 you will have to wait for 645 yeas unless you have 5 Ryzen threadripper :D)
The post-game analysis' purpose is just to find out your blunders and mistakes

hope this will help!

@Codeur_gameur
Thank you very much! That's cleared it up for me. Thanks again :)

I think #2 is wrong. It's called "server-side analysis" for a reason, it doesn't depend on your cpu.

@so1omon said in #1:
> In a study, post-game analysis, etc. there is an option to "request a server-side computer analysis".
>
> Does anybody know at which depth that analysis is conducted?
>
> My understanding is that 2 seconds are allocated for each analyzed move, thus giving inconsistent analysis depths, however I may be mistaken.

When someone asks for analysis this way, it is farmed out to the fishnet clients.
See: github.com/lichess-org/fishnet

-----quote
revoof:
here in the code is the go command: github.com/niklasf/fishnet/blob/4639eccf202526dd91dc20d7daa4d9d78abc2ad7/src/stockfish.rs#L331-L335. if you trace it back all the way to lila, you will find github.com/ornicar/lila/blob/36472373153769f84a94c9db95e9292608c85360/conf/base.conf#L422. so it's a fixed node limit, and depth may vary. indeed analysis in the browser surpasses it quite quickly, when modern webassembly features are supported by the browser
-----end quote
analysis.nodes = 1500000 # sf 15 dev

So the answer is that depth varies and that the "go" command is based on a maximum number of nodes as 1.5 million. aka 1.5 mN.

revoof is a lichess developer, and the quote was from a conversation I had with him on the lichess discord.

@jomega Awesome, thank you!