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Subject: Re: Test position software... whats out there already?

Author: Joel

Date: 21:31:26 04/27/04

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Hey Andrew,

This is a technique I learnt from Scott Farrell.

I use:

if (last_move was capture && current_move is a capture && the captures are on
the same square && the value difference of the two captured pieces is within 1
pawn && the capture brings us back to within at least MARGIN to the root
material balance) then extend by 1 full ply.

I think margin is 1 pawn at the moment, though I am at work and cannot remember
exactly. I can't say I have extensively tested whether this approach is better
than no recap extension at all. But I do know that it is better for bodo than
having the recap extension as how I described before.

To anyone else, please feel free to share any of your special techniques of
constraining the recap extension! ;)

Joel



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