Test with Stockfish and Komodo with different contempt

Discussion of computer chess matches and engine tournaments.

Moderators: hgm, Rebel, chrisw

Carlos777
Posts: 1752
Joined: Sun Dec 13, 2009 6:09 pm

Re: Test with Stockfish and Komodo with different contempt

Post by Carlos777 »

Hi Frank,

More games are needed to reduce error margin, just statistics.

It is logical that with higher contempt, the average move numbers will increase, basically the engine with the higher contempt refuses to get early draws. Nice cross table btw. :)

I agree about Andscacs, it would be nice if its author implements contempt.

About contempt=15 being too much for SF, let's see what happens with more tests.

Regards,
Carlos
Carlos777
Posts: 1752
Joined: Sun Dec 13, 2009 6:09 pm

Re: Test with Stockfish and Komodo with different contempt

Post by Carlos777 »

mwyoung wrote:
I will go at minimum 100 games.

I have never tested Stockfish with such a high contempt before. At the moment Stockfish seems to like the setting at contempt 15. If this test turns out to show promise. I will do more testing to confirm your findings.
Thanks Mark.

+114 Elo so far for SF c15 is impressive. I hope you keep testing it.
mwyoung
Posts: 2727
Joined: Wed May 12, 2010 10:00 pm

Re: Test with Stockfish and Komodo with different contempt

Post by mwyoung »

Carlos777 wrote:
mwyoung wrote:
I will go at minimum 100 games.

I have never tested Stockfish with such a high contempt before. At the moment Stockfish seems to like the setting at contempt 15. If this test turns out to show promise. I will do more testing to confirm your findings.
Thanks Mark.

+114 Elo so far for SF c15 is impressive. I hope you keep testing it.
First test is complete. I will do the same test again with Komodo set to contempt 0. Stockfish will stay at the same setting contempt 15.

As with your data we see 100 elo advantage for Stockfish over Komodo 10.1

Blitz 5m+3s 0


1 Stockfish 151016 64 BMI2 +106 +34/=63/-4 64.85% 65.5/101
2 Komodo 10.1 64-bit -106 +4/=63/-34 35.15% 35.5/101

Test running now at

https://www.youtube.com/watch?v=sGtxXOwrWpA
"The worst thing that can happen to a forum is a running wild attacking moderator(HGM) who is not corrected by the community." - Ed Schröder
But my words like silent raindrops fell. And echoed in the wells of silence.
User avatar
cdani
Posts: 2204
Joined: Sat Jan 18, 2014 10:24 am
Location: Andorra

Re: Test with Stockfish and Komodo with different contempt

Post by cdani »

Frank Quisinsky wrote: Andscacs with Contempt = 10 ... I am very sure engine goes high with more as 15 Elo and is in the near from Fire and GullChess. Should be absolutely clear if I am looking how many games Andscacs gave fast draw with 3-fold. Andscacs is strong in king attacks / tactic and have a very good eval.

:-)
I just added contempt to Andscacs, so next version will have it :-)