Perplex City: The Board Game, with over 1,200 puzzles and brainteasers designed for anyone who likes to think. Anagrams, logic problems, visual puzzles, trivia questions - there are challenges for players of all ages. And if the puzzles aren't tough enough, you must also fend off your opponents in head-to-head puzzle challenges.
Perplex City: The Board Game is designed for 2-16 players. Available November/December 2006 (?)
(Description from the Perplex City web site, http://perplexcity.com)