need some help assessing the evaluation

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brtzsnr
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need some help assessing the evaluation

Post by brtzsnr » Sat Dec 02, 2017 11:07 am

Hi, folks!

Lately I have been working on improving the eval of my engine, which so far has come at the expense of the speed. I have two versions of my engine, let's call them Matt and Eve, which I linked below. One has an improved evaluation, the other is the stable version, but I won't tell you which is which for now. If, unlike me, you understand chess could you give me your opinion on the positional play of these two engines and which you prefer more?

Regards,

Matt http:///www.zurichess.xyz/binaries/matt-windows-amd64.exe
Eve http:///www.zurichess.xyz/binaries/eve-windows-amd64.exe

I can provide binaries for other platforms if needed.

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Guenther
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Re: need some help assessing the evaluation

Post by Guenther » Sat Dec 02, 2017 11:12 am

brtzsnr wrote:Hi, folks!

Lately I have been working on improving the eval of my engine, which so far has come at the expense of the speed. I have two versions of my engine, let's call them Matt and Eve, which I linked below. One has an improved evaluation, the other is the stable version, but I won't tell you which is which for now. If, unlike me, you understand chess could you give me your opinion on the positional play of these two engines and which you prefer more?

Regards,

Matt http:///www.zurichess.xyz/binaries/matt-windows-amd64.exe
Eve http:///www.zurichess.xyz/binaries/eve-windows-amd64.exe

I can provide binaries for other platforms if needed.
Hmmm Matt sounds like 'material and 'eve' like 'eval' :)
I will try to collect test games and look at them, but not before
next weekend.

How much is the speed/depth diff in your measurements so far?

Guenther
Guenther Simon
http://rwbc-chess.de/

brtzsnr
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Re: need some help assessing the evaluation

Post by brtzsnr » Sat Dec 02, 2017 11:19 am

Guenther wrote: Hmmm Matt sounds like 'material and 'eve' like 'eval' :)
I will try to collect test games and look at them, but not before
next weekend.
Not quite. zurichess is about 2800 or CCRL 40/40 so the eval is more complicated than "material" only.
Guenther wrote: How much is the speed/depth diff in your measurements so far?
Guenther
I measured about 10-30 Elo difference depending on the platform (arm64 vs amd64). I'm deliberately omitting details not to bias you or anyone else in their assessment. I promise to give more details later.

jorose
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Re: need some help assessing the evaluation

Post by jorose » Sat Dec 02, 2017 5:49 pm

Would you happen to have Linux binaries for Mat and Eve? Id love to take a look at the two engines, but my laptop doesn't have windows.

AlvaroBegue
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Re: need some help assessing the evaluation

Post by AlvaroBegue » Sat Dec 02, 2017 6:12 pm

jorose wrote:Would you happen to have Linux binaries for Mat and Eve? Id love to take a look at the two engines, but my laptop doesn't have windows.
I usually don't have much trouble running Windows engines under Linux using Wine. You may want to give that a try.

EDIT: I just ran this, and it seems to work:
> xboard -fcp "wine matt-windows-amd64.exe" -fUCI

brtzsnr
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Re: need some help assessing the evaluation

Post by brtzsnr » Sat Dec 02, 2017 7:13 pm

Thank you, Alvaro!
Thank you, Jonathan!

If you prefer a linux binaries you can use these two links

Eve http://www.zurichess.xyz/binaries/eve-linux-amd64
Matt http://www.zurichess.xyz/binaries/matt-linux-amd64

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