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Subject: Re: shredder 8 and weird PVs? (sandro?)

Author: Robert Hyatt

Date: 10:23:54 01/20/04

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On January 19, 2004 at 12:57:10, Bob Durrett wrote:

>On January 19, 2004 at 12:28:39, Tord Romstad wrote:
>
><snip>
>>
>>I haven't seen the PVs Shredder produce, but in my own engine it seems
>>that the problem with wrong PVs is very rare.  The first two moves always
>>seem to be correct, and I can only remember a handful of cases where there
>>was something obviously wrong later in the PV.  I'm sure it happens a
>>lot more frequently than I notice it, though.  Of course I don't study
>>all the thousands of PVs my engine prints.
>>
>>Tord
>
>Believe me, it happens on every move with Shredder.  I look forward to the time
>when this user-unfriendly feature is fixed.
>
>Bob D.

It would be interesting to _carefully_ study some Shredder PVs to see what
is happening.  It might reveal some interesting stuff about things going on
inside the search.  IE shallow searches used for something, which could
overwrite the hash table unexpectedly...



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