[Retros] Illegal moves by grandmasters

A J Mestel A.J.Mestel at damtp.cam.ac.uk
Wed May 11 09:01:41 EDT 2011

I don't think I've ever made an illegal move.

I have, however, made hundreds of criminal moves. I deduce crime is not
against the law.

I think on balance I agree that some FIDE rules should be ignorable by the
Problems community. Why should studies cease to be sound were FIDE
suddenly to change the 50-move rule to 40, for example?

I have never for example, seen a problem/study which specified that
"White has touched his rook and an opponents pawn simultaneously, and so
must either move the rook or capture the pawn (or both.)"

Or "White only has 3 seconds for his next 10 moves. Physically, this
requires that the distance of the moving piece to the clock (the left-hand
side of the board) must on average be less than 2 squares per move."

Such problems would count as "fairy problems" to us, but arguably they are
closer to over-the-board play than your average 2-mover...

Best wishes, Jonathan

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