Author: Dave Gomboc
Date: 13:42:08 07/19/99
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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
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