Did Bobby Fischer castle with a pawn promoted to a rook? I once heard that Bobby Fischer pawn promoted to a rook, and then on a subsequent move, castled with that rook. I have been searching for the move history of this game, if it really did happen, but I haven't been able to find it on the Internet. Am I just searching for a rumor, or did this really happen? Where can I find the move history for this game if it really did happen?
There was a time when the FIDE rules didn't specify that a king and rook
need to be on the same rank in order to castle.  This meant that, assuming
the other requirements for castling were met, it was legal for White to
castle with a rook on e8 (or Black with a rook on e1), provided that rook
had never moved (which could only happen if it was a promoted pawn).
This interpretation was never intended, of course, and the wording has since
been fixed.

I've never heard of Fischer (or any other player) taking advantage of
this glitch in the rules, but it was used in at least one chess problem.