Author: Albert Silver
Date: 09:49:03 06/03/00
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On June 03, 2000 at 10:41:58, blass uri wrote:
>My observation is that programmers did not try to teach program some rules
>about endgames(for example about the fact that KRPPP vs KRPP is almost always a
>draw when all pawns are on the same side).
That's less than obvious you know. Perhaps this position, but you'd be surprised
at what can be won at times. Check out Korchnoi's book on endgames to see some
of the positions he managed to win. Impressive technique.
>
>
>I know no program that knows that this position is probably a draw(evaluation of
>less than 0.5 pawns advantage for white):
>
>[D]5rk1/6pp/8/8/8/8/5PPP/5RK1 w - - 0 1
>
>I am interested to know if there is a programmer who try to teach his(her)
>program as much as possible about endgames by teaching it rules from chess books
>without caring about nps and about being better in games.
>
>Uri
What rules would you suggest? There are some obvious ones, but there are also
very disputable ones that have too many exceptions to be of much use, other than
to a human player. I know that many of the program have the more obvious ones
such as the advantage of rook and bishop vs. rook and knight, or bishop vs.
knight in pawn endings with pawns on both wings, BUT knight over bishop if the
pawns or connected on the same wing, etc... What other rules though? Most
positions admit too many exceptions for to be of much use, and really just have
to be played out.
Albert Silver
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