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Subject: Re: Deep endgame problems

Author: Robert Hyatt

Date: 13:29:14 10/18/99

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On October 18, 1999 at 10:50:39, Bas Hamstra wrote:

>There are several endgame positions in the wac testsuite that my program takes
>many seconds to solve. I saw Crafty solves some of those instantly (an old
>Crafty, without tb).
>
>How does Crafty do that? I tried to use various promotion extension schemes (eg
>pushes of freepawns), but they are not of much help.
>
>Is it just square of the pawn (sotp) endgame eval stuff? I don't have it.
>Because I thought in most endgames there are more than only a few pawns and 2
>kings, and then things get too complicated. When there is for example a knight
>somewhere this sotp code would be useless, no? Or at least very complicated.
>
>How much would this sotp eval help the average endgame when there are also a few
>minor pieces on the board?
>
>And are there more tricks to see guaranteed wins quick other than tb?
>
>
>Regards,
>Bas Hamstra.


Post a position you are interested in, I'll run it and try to explain what
helped it find the move...



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