Author: Uri Blass
Date: 06:01:33 02/27/06
Go up one level in this thread
On February 27, 2006 at 06:24:23, Tord Romstad wrote:
>I have never had any success with bonuses for outside passed pawns,
>not even if I restrict it to pawn endgames. This could be simply because
>I haven't found the right weights, of course.
I have a small bonus for outside passed pawns only in the endgame but I am not
sure if it is productive.
I define outside passed pawn as extreme passed pawn regardless of the file
relative to other pawns.
Here is by code for the case that white has passed pawn.
if the passed pawn is in the biggest file(relative to files of other pawns) or
in the smallest file I add 0.1 pawns for the evaluation.
In case it is the only pawn in the board bonus of 0.2 pawns is added(usually it
happens in endgames and in this case I have also function to reduce the score
in many cases).
if (biggest_pawn_file==biggest_power[passed_white_pawn_files])
{
score+=10;
}
if (smallest_pawn_file==smallest_power[passed_white_pawn_files])
{
score+=10;
}
>
>I do have a small bonus for candidate passers, but I am not sure how
>effective it is.
I do not have bonus for candidate passers.
I did not try it and one of the reason is that I was too lazy to define it.
Uri
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