Author: Tom Likens
Date: 06:27:30 07/11/03
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On July 11, 2003 at 09:02:03, Grzegorz Sidorowicz wrote: >[d]8/k7/3p4/p2P1p2/P2P1P2/8/8/K7 w - - > >In this legendary position my program can't find solution. >After long investigation (2 years) I must ask you ;-) >What is wrong? >I cant't find any reason? >Random numbers are good, after every move new hashcode is OK >What is wrong?! Pleas help me!!!! >Below is output from my program: [-snip-] >I think maybe interesting is fact when I add to my program >formula (from Crafty): >if (bestvalue!=original_alpha) >{ > ....Write to TT >} >my program in this position is much faster, but still can't find solution. [-snip-] >Best Regards >Grzegorz Sidorowicz I wouldn't mind speculating, but I think we need additional information. Could you post 1) some of the hashing code from your search and 2) some of the code that actually stores and retrieves the move from your hash table. Otherwise, this really is akin to looking for the proverbial needle in the haystack with a blindfold on and our hands tied behind our backs ;) regards, --tom
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