This article is from the Puzzles FAQ, by Chris Cole email@example.com and Matthew Daly firstname.lastname@example.org with numerous contributions by others.
The rec.puzzles archive is a treasure trove of puzzles and their
solutions. Maintained by Chris Cole, the archive currently contains over
500 puzzles, including those mentioned in this FAQ, and others of many
varieties. (It is not, as the name might suggest, an archive of all posts
made to rec.puzzles.)
Corrections to and comments on archive entries should be e-mailed to
email@example.com. Discussion of the solutions in the archive
is generally welcomed in rec.puzzles.