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Subject: Re: penalty for opening H file of opponent when white and castled kingside

Author: Robert Hyatt

Date: 18:56:53 10/02/00

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On October 02, 2000 at 13:42:40, Mike Adams wrote:

>After taking some time to think about it I came to about the same conclusion.  I
>looked at some of my weights and redid them.  I made castle pawn structure
>values scaled to opponents material count.  Before there was just a few points
>penalty.  Now its much higher.  Also i had rook on wide open file bonuses i
>added rook on semi open file so it would see that bonus for the enemy when it
>opened the h file.  In addition rook mobility bonuses would go up so i think
>that sort of thing would be dicouraged.  I still might add a penalty for opening
>the h file based on opponents material count and if a rook can go there but for
>right now i think i'm ok.i still have not written pawn storm routines i think
>thats next.


I don't think 'pawn storming' code is essential.  So long as you recognize
the result of shredding the pawns...

one other issue.  Rooks on an open file bearing on the king are dangerous.
But don't forget the rook lift issue as well...  IE Re3-Rh3 and the rook has
no friendly pawns in front of it.  This is nearly as dangerous as when the file
is open with the rook on it.



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