Clearly, two PAYING MEMBERS who use the same computer (and therefore submit the same IP address) do not fall into the category of pawns (who, of course, do NOT pay) with multiple accounts.

A policy of one pawn account per IP address would be appropriate and weed out those who are breaking the rules. And yes, a few users who happen to share a computer due to same household or friendship would be alienated, although I suspect they are outnumbered by the cheats.

I appreciate that the tournaments are largely unfettered because of the "one per pawn at a time" rule, and perhaps Fencer is content to let it go at that. So be it, but as for casual games, the 20-game limit (or ANY limit) is virtually meaningless as long as any user may create more than one account.