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Subject: Re: Corrected

Author: Dave Gomboc

Date: 01:59:28 09/09/01

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On September 09, 2001 at 04:16:26, Gian-Carlo Pascutto wrote:

>On September 08, 2001 at 23:54:22, Dave Gomboc wrote:
>
>>Does it actually win a piece?  I seem to recall Amir Ban investigating this
>>position and posting that no piece can be won.  I assume he did a fairly
>>thorough job of playing through various variations, i.e. I don't think he just
>>set his program on infinite time and let it run.
>>
>>I don't have a CCC archive set up, maybe somebody else can find his comments.
>>
>>I am not saying that a piece cannot be won, I'm just not sure what the truth is.
>> It would be helpful if we had the PV from the DT2 search.
>
>Nobody (except DT) found the way to actually win a piece. That
>doesn't mean there isn't any.
>
>--
>GCP

Right, but because only one program found it, it doesn't mean that there _is_ a
way either.  DT/DB has had bugs before, e.g. when DB2 tossed a rook against
Kasparov in the ending of the first game, and Kasparov & co. ended up thinking
that it had seen everything to the end.  Actually, there was actually a C macro
expansion error in their source code, which IIRC they didn't actually find until
after game 2.

True, the chance of the +2.xx score being caused by a bug may be low... but
let's face it, the DT/DB team were always scrambling to get everything ready in
time for the big match.

So what is the way to win the piece?  (What is the PV?)

Dave



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