To Mark Lefler
Posted: Sat Sep 12, 2015 7:15 pm
Hi Mark,
I was wondering what you set contempt at for stage 2 of TCEC?
Thanks.
Tim.
I was wondering what you set contempt at for stage 2 of TCEC?
Thanks.
Tim.
I think there is some confusion, Komodo 9.02 only has "drawscore". It is Komodo 9.2 that has "contempt".petronik wrote:Hi Mark!
I cannot find "contempt" in the configuration of my copy of Komodo 9.02 recently upgraded from 9.01.
Thanks in advance for your help!
Marco
Hmm...though a Komodo fan, I'm not too sure about this new Contempt parameter. The Komodo Team insists on retaining it; and indeed it may prove beneficial in the long run.RJN wrote:"The release came too late to be used in the first stage of TCEC, but of course it will be available for the second stage.
It is set to the default, which is 15. Per the readme file, this will discourage Komodo from accepting early draws, and make it keep playing even if it is down a bit. In later stages (assuming we make the next stage), we will probably lower it a bit.TShackel wrote:Hi Mark,
I was wondering what you set contempt at for stage 2 of TCEC?
Thanks.
Tim.
"insists" is a very strong word. The Komodo Team keeps things in the program that have been shown to increase strength overall. In fact, since 9.2, we have started using the Contempt value for other things to improve play. We are learning a lot from the Odds matches we have been running, so hopefully new things will come up we can use to further improve Komodo.shrapnel wrote:Hmm...though a Komodo fan, I'm not too sure about this new Contempt parameter. The Komodo Team insists on retaining it; and indeed it may prove beneficial in the long run.RJN wrote:"The release came too late to be used in the first stage of TCEC, but of course it will be available for the second stage.
The only thing is, I'm not too sure that the ideal Contempt setting to use against Stockfish has been found yet....
shrapnel wrote:Hmm...though a Komodo fan, I'm not too sure about this new Contempt parameter. The Komodo Team insists on retaining it; and indeed it may prove beneficial in the long run.RJN wrote:"The release came too late to be used in the first stage of TCEC, but of course it will be available for the second stage.
The only thing is, I'm not too sure that the ideal Contempt setting to use against Stockfish has been found yet....
Fair enough, from YOUR perspective.lkaufman wrote:We wouldn't have bothered with contempt if we only cared about playing Stockfish,
In my opinion the proper value for you to use in gaming depends very much on relative hardware. For example, if you only have an 8 core machine while your opponent has 24 cores, you might well want to use negative contempt. If you have 8 cores and he only has a quad, probably the default contempt (or maybe just 10) is fine. But perhaps often you don't know the opponent's hardware.shrapnel wrote:Fair enough, from YOUR perspective.lkaufman wrote:We wouldn't have bothered with contempt if we only cared about playing Stockfish,
From a Gamer's perspective, I can tell you this......Open up ANY online chess Server like Playchess.com or Infinitychess.com and you will find that 99.99 % of the players using Komodo, Stockfish or one of its derivatives.
NO self-respecting player would be caught dead using ANY other Engine !
It's only in this Forum that people get excited about mostly unheard of Engines. In the real (Gaming) world all Engines except Komodo and Stockfish are simply SNEERED at !
That is the reality ! AND THAT is why it is important for many Komodo users to find the ideal Contempt to use against Stockfish, not simply use an over-defensive contempt 0 !
Regards
I agree Larry that the new contempt is helping you on the rating lists. Your draw percentage has gone down steadily from 9.0, to 9.1, and especially to 9.2. And 9.2's win percentage has gone up at the same time the draw percentage went down. That sounds like a big plus in my book!lkaufman wrote:We wouldn't have bothered with contempt if we only cared about playing Stockfish, it may well be worthless against latest SF. But you can just set it to zero against SF if you like. In view of our ratings on the rating lists, it is clearly helping us against the range of opponents tested there.