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Subject: Re: annoying en passant x-ray

Author: Peter McKenzie

Date: 21:36:11 11/30/03

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On November 30, 2003 at 17:18:19, Georg v. Zimmermann wrote:

>[b]8/8/8/8/3R1p1k/8/4P3/6K1 w - - 0 1
>
>white moves pawn, black can not capture en passant. wonderfull, breaks my new
>move generator.
>
>Uri, I think you are the expert on this. Ideas for workarounds ? :-)
>
>But the main reason I am posting is: are there any other situations like the
>above where I can with one move move 2 pieces out of the way of an x-ray attack
>?
>
>Georg

I didn't bother to try fixing your diagram but I think I can guess what you're
talking about.  In which case you might be interested in this link (look at the
last position) to help you test whatever fix you make:

http://homepages.caverock.net.nz/~peter/perft.htm

cheers,
Peter



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