Author: Ryan B.
Date: 03:08:49 12/13/05
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On December 13, 2005 at 06:01:45, Chrilly Donninger wrote: >> >> >>Hi Chrilly, >> >>I find that hard to believe. One setting scores 40% against Rybka and another >>75-80% but at the same time the latter scores less against Shredder? You did not >>wrote by how much the more selective search scores better against Shredder but >>nevertheless in my tests I never experienced something like that. >> >>I often experience the same like Vas, that a tuning shows significant >>improvement in selfplay but no significance against a broad range of opponents. >>But I never observed that something which helped in selfplay hurts against other >>engines. It may be without effect against others but not worse. >> >>So far I was never able to tune Fruit against a specific opponent which resulted >>in a signficant difference not to say in doubling the score (40% to 80%). So >>either I simply lack the understanding how to do this or you played not enough >>games to get a statistical significant result and observed just noise. Given the >>little time between your first post about Rybka and this one I give both >>possibilities the same probability. ;-) >> >>regards >> >>Joachim >> >One explanation could be: As a tester you can only change some settings. But I >changed the search on the software-side almost completly. It was additionally >tuned against Shredder to play very aggressive. This worked quite good and gave >>80% against Shredder. The standard-version is - on a single - 70-75%. >Against Rybka this over-aggressive style did not work properly. But the >standard-version which is more tuned had no problems with Rybka. > >Chrilly Does the standard version of Hydra use any foward purning other than Null move? Ryan
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