L. Lynn Smith wrote on Thu, Jun 19, 2003 05:35 PM UTC:
A good way to assure e-mail games are played without the aid of a computer
is for each player to create a text file where they will put down the
reasoning behind each move. Each turn this file is placed in a
password-protected/encrypted ZIP file and sent with the move. (The name
of the ZIP file can actually be the move.) At the end of the game, the
player sends the passwords to open these ZIP files.
This is also helpful with creating commentary for the recorded game.