Author: José Carlos
Date: 07:20:36 11/03/03
Go up one level in this thread
On November 03, 2003 at 10:08:08, Uri Blass wrote: >On November 03, 2003 at 09:36:57, Tord Romstad wrote: > >>On November 03, 2003 at 09:26:22, Mridul Muralidharan wrote: >> >>>Hi, >>> >>> Recently I came to know that Vincent Diepeveen has been banned from CCC >>>without explaination. >>>Especially before , during and after an important event like world champs ! >>>Is this true ? and if yes , why ? >> >>It's sad, but apparently true. I recieved an e-mail from Vincent on Friday, >>where he explained that he had been banned without even recieving a warning >>in advance. >> >>I hope this is just some kind of misunderstanding or mistake by the moderators, >>and that Vincent will be back soon. >> >>Tord > >He was banned for 1 month because of his bad behaviour. >He attacked me in his posts and I complained about it. > >I did not save the relevant post and I do not remember the exact content but the >last case was when he said that I understand nothing about order of moves when I >only claimed that statistics about order of moves can be influenced by null move >pruning or by extensions so I do not consider it as important and I never >calculate the relevant statistics. > >I also explained later in another post why I think that null move pruning can >reduce the % of first fail high without changing the function of order of moves. I've changed the subject because I want to speak about this now, which is very interesting for me. I missed your previous post when you talked about null move and move ordering, and I'll search for it in the search engine. I'm having a hard time trying to make null move work together with a high % of beta cutoffs at the first move. Unlike you, I find this statistic very useful because I can try several tricks to avoid non-productive null move searchs which will damage move ordering. So far I'm being able to average >95% in games, hitting some times 99%, at the cost of not pruning some lines. I'm not sure so far about where is the correct balance between both pruning and move ordering, but I'll report my results when I think they're significant. On the other side, I haven't found other pruning different than null move to affect move ordering, though I must admit I'm very conservative at the moment. Also a complex qsearch helps move ordering but damages branching factor. José C. >Note that it was not the first time that Vincent is using personal attacks >against people and I think that the moderators were correct in their decision. > >Uri
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