I posted this old idea on the fourm a few weeks ago for a gag.
I called it the old swizel.
If you really want to carry it off then have the White games on here
and the Black games on another site.
You would have to be quite unlucky to get caught.
(don't use the same name on both sites).
If you did it in non tournament, ungraded friendlies using players
1400 or below then no harm done. The two players are playing
someone of their equal strength and it's unrated.
Be really funny if you picked a player who was a member of both site.
He would be playing himself!
I reckon sooner or later you would crack and play a better move.
But it IS against the site rules even though in the above scenario
you would not profit from it.