Arasan 22.2

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

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jdart
Posts: 4366
Joined: Fri Mar 10, 2006 5:23 am
Location: http://www.arasanchess.org

Re: Arasan 22.2

Post by jdart »

3) Do you mean that you now always extend checks even if see < 0? What's the Elo diff with see >= 0 only?
There is no see test for extensions. However, bad checks can be pruned at low depth. This change, vs. having a SEE test on the extension, was very close to neutral (no ELO change).
Tony P.
Posts: 216
Joined: Sun Jan 22, 2017 8:30 pm
Location: Russia

Re: Arasan 22.2

Post by Tony P. »

jdart wrote: Thu Dec 24, 2020 9:54 pm
NO NN or NNUE Support ?
No, not yet. If you want it, you can submit a pull request ;-).
Now that you've written the NNUE reader (thank you!), can we expect good news on this soon? :)
jdart
Posts: 4366
Joined: Fri Mar 10, 2006 5:23 am
Location: http://www.arasanchess.org

Re: Arasan 22.2

Post by jdart »

I have also written an equivalent to gensfen, and so will be able to generate a net (with available training code) and can at least try grafting that into the eval. I am not expecting it to equal/surpass the existing eval right away, however. (The current eval is tuned with Texel tuning and is not too bad).