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Subject: Re: Building the Principal Variation in MTD(f) searches

Author: Vincent Diepeveen

Date: 13:08:38 07/19/99

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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



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