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Subject: 50 move rule clarification? (was: Re: TSCP question)

Author: Michel van der List

Date: 12:39:13 02/02/00

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On February 02, 2000 at 15:28:28, Jeroen van Dorp wrote:
>On February 02, 2000 at 15:24:47, Michel van der List wrote:
>>I've been looking at TSCP, and it would appear that the fifty move counter
>>does not get reset when the castling rights change. Am I missing something?
>
>With the chance of making a stupid remark, but castling is not incorporated in
>the 50 moves rule, only pawn moving and taking a piece.
>So if the 50 moves rule in a program is reset at a castling, that's not right.

My understanding of the rules is slightly different, but I could certainly be
wrong. As I understand it, any non-reversible move would reset the 50 move
counter. So not just castling itself, but even the fact that your castling
rights change (i.e. if I can still castle both K&Q side, but move my K-side
rook, thereby losing my ability to castle K-side), would reset the counter.

I don't own a FIDE or USCF rulebook, perhaps someone else can clarify...

Michel




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