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Subject: Re: Three Positions

Author: martin fierz

Date: 04:24:34 11/21/03

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On November 20, 2003 at 15:20:59, Gerd Isenberg wrote:

>Three Positions, one is mate in 13 (Shredder - IsiChess WMCCC02).
>Any static eval or king safety heuristic to choose the best one for white if
>leaf nodes ;-) ?

i can tell you what i think when i get to see such a position in a game: this is
one where you can't rely on your feelings (=static evaluation), but have to
calculate! so basically i think the answer to your question is that no static
eval can catch this one.
not very helpful i know... if anything, my gut feeling likes the position with
the pawn on d7 best, because you still have some kind of king shelter. that
would probably be a sensible rule if you are looking for one: keeping a pawn on
the seventh is good for your king.
as for the difference between position 2 and 3, that's just what we
german-speaking guys call "stellungsglück".

cheers
  martin

>[D] 2k5/8/4r2p/3p1Qp1/8/6P1/3pqP1P/R5K1 w - -
>[D] 2k5/8/3pr2p/5Qp1/8/6P1/3pqP1P/R5K1 w - -
>[D] 2k5/3p4/4r2p/5Qp1/8/6P1/3pqP1P/R5K1 w - -
>
>Cheers,
>Gerd



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