Author: Uri Blass
Date: 06:07:34 02/27/06
Go up one level in this thread
On February 27, 2006 at 09:01:33, Uri Blass wrote:
>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
to be more correct too lazy to program it.
definition is simply open pawn that is not a passed pawn and has a friendly pawn
that can support it for every square in the promotion path that does not make it
a passed pawn (for example white a4 b4 against black a6 but not white a5 b4
against black a6 because a5 cannot support b5)
Uri
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.