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Subject: Re: Postmodernist - Chezzz

Author: Andrew Williams

Date: 16:53:17 02/08/03

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Well I'm not sure that I should be offering advice, since Chezzz outplayed PM
for most of this game, but anyway...

I've only very recently implemented an outside passer bonus. It says that if
there's a passer on a, b or g, h AND the pieces that the opponent has are all on
the far three files, give a big bonus to the passer. If the opponent has pieces
which are not on the far three files, the passer gets a bonus for being outside,
but it's not as high. Passers on a/h get bigger bonuses than passers on b/g in
all cases. The bonus is based on how far from promotion the passer is, and how
many pieces the opponent has.

My program has a bonus for the case where one side has passers on both sides of
the board. That bonus gets bigger if the other side only has Knights (or has no
pieces at all of course). My program underestimates united passers at the
moment.

My program extends one ply when a pawn reaches the 7th rank.

Andrew




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