New Eleusis is one of my favorite card games.
Many other games rely on logical deduction. This game emphasizes induction: coming up with an explanation that fits the observed facts. New Eleusis doesn't require any scientific background, but it does require a willingness to think. This is not a game for the intellectually lazy.
In addition, here is a message from Marc Drexler, describing some advanced rules. (Marc is a superb New Eleusis player who has done much to advance interest in the game here on the East Coast.) When I have time I'll try to properly integrate this material (or at least turn it into decent HTML!).
I claim no credit for the game itself, but I wrote these summaries, and they are copyrighted. Permission is hereby granted for anyone to make any number of unmodified copies for personal (non-commercial) use only.
May 31, 1995
Revised January 20, 1997
Revised again March 6, 1998
Note: my email address is: firstname.lastname@example.org