Re: *secure* (non-OTP) pencil and paper systems ?
Date: 08/02/05

Date: 2 Aug 2005 07:27:49 -0700

The way I've heard it, cards aren't, or weren't, allowed in some
prisons -- because they have an edge! Dedicated incarcerated solitaire
players use card-imprinted tiles. Of course, there's always the
possibility of contraband decks, which may or may not be tolerated.

Robert Leone