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Subject: Castling and the 50 move rule

Author: Scott Ludwig

Date: 15:10:21 08/24/99


The standard rules of chess that I've read say the 50 move rule gets reset to 0
after "non-reversible moves" - pawn moves and captures. I've always wondered why
castling is not included in that definition. I've seen some older engines (SCP)
that actually treat castling as a resetting move, but the majority of engines do
not.

Anyone know the history of this?




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