Author: Vincent Diepeveen
Date: 14:39:34 07/19/99
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On July 19, 1999 at 16:42:08, Dave Gomboc wrote: >On July 19, 1999 at 16:08:38, Vincent Diepeveen wrote: > >>On July 19, 1999 at 13:28:27, Dave Gomboc wrote: >> >>>On July 19, 1999 at 06:14:45, Vincent Diepeveen wrote: >>> >>>[snip] >>> >>>>I'm quite positive my 8 probe hashtable works excellent. >>>> >>>>I'm quite sure i investigated MTD very well. >>>> >>>>So what are we talking about? >>>> >>>>i give 2 reasons why MTD sucks bigtime for my program namely: >>>> - it searches space PVS doesn't search; called overhead >>>> - it's worst case behaviour is simply losing games for me, >>>> as in *some* positions where it's already tough to search with PVS >>>> it is only busy researching and researching to get a bound. >>>> >>>>The only thing you say then is that i'm not using hashtables? >>>>Comon drop dead. >>> >>>This isn't what I said. I think it's clear you didn't read what I wrote very >>>carefully. Oh well, it's not my problem. >> >>I posted a position with analyzes here. >>I'll post it again if you need, please let your proggie search 20 ply >>just using NULLMOVE R=3 and your beloved MTD, then we can talk. >> >>>[snip] >>>Dave > >My program searches _far_ deeper than 20 ply with mtd(f), and without nullmove >at all. Of course, it's not playing chess, but you can't have everything. > >Dave That explains, we're talking about different things here. I'm talking about searching for something in the world, you're talking about searching for something in your own house... ...even a fool can search his own house, but finding something somewhere in the big cruel world is a bit tougher. Greetings, Vincent
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