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Subject: Re: WAC#2: solution by depth or evaluation?!

Author: Vincent Diepeveen

Date: 08:50:02 02/24/99

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On February 24, 1999 at 08:32:02, Steffen Jakob wrote:

>Hi Vincent!
>
>On February 24, 1999 at 08:15:09, Vincent Diepeveen wrote:
>
>[...]
>
>>Most programs, including crafty solve win at chess position 2,
>>at low depths just seeing that pawns get to 3d rank, where such
>>kind of evaluation is very dangerous.
>
>[...]
>
>Hossa is in the meanwhile also able to solve this position by evaluation. I
>consider the following aspects:
>
>(1) Black gets two connected passed pawns on the 3rd rank
>(2) Black has no way to stop at least one of them from promoting
>(3) Black cannot give a perpetual check

Diep sees that king is in quadrant and therefore doesn't care initially.
it does that only after they get to 2nd rank.

So you lack some knowledge here.

A human is however even more wiser, seeing that the pawn at
e3 stops the king from getting there in time.

>Of course I cannot be 100% sure that (2) and (3) is true in any case but I think
>that my evluation is more often correct than incorrect. You mentioned only (1)
>for crafty. Is that true?

>How does Diep solve WAC#2?

Tactical, it sees them promote in q-search.


>Greetings,
>Steffen.



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