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Subject: Re: Question about 50 move rule and e.p./castle flags

Author: Robert Hyatt

Date: 10:19:44 01/31/03

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On January 31, 2003 at 06:01:26, Sune Fischer wrote:

>I've noticed people (eg. Crafty) don't reset the 50 move counter when ep. flags
>and castle flags are destroyed.
>
>I wonder if that is correct, can one really say nothing has happened for 50
>moves if flags has been destroyed?
>I would bet this is a "bug".
>
>Anyone know what the FIDE rules say about this?
>
>-S.


The fide rule doesn't have to say anything.  If the ep status changes, then a
pawn _must_ have
been moved.  :)  That would have reset the counter immediately.

Castling is irrelevant.  The rule says "no capture or pawn move for 50 moves."
It doesn't
mention castling status.  EP is included since to have an EP capture you had to
move a pawn
and that resets the counter.



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