http://rangevoting.org/PuzzlePage.html
now 118 puzzles there. Most come with answers, but a few are open problems. -- Warren D. Smith http://RangeVoting.org <-- add your endorsement (by clicking "endorse" as 1st step) and math.temple.edu/~wds/homepage/works.html ---- Election-Methods mailing list - see http://electorama.com/em for list info
