Problem of the Week

Virtu Software's Problem Of The Week pages have moved to The Problem Site, which also contains many fun and educational games (including the beloved Entrapment Geometry Game, Trio Match Shape Matching Game, and Adders - an addictive math facts game).

Also, if you are looking for a way for your students to do Writing Assignments Online, you'll want to check out Fifteen Minutes Of Fiction

Have fun puzzling!
Douglas Twitchell
Virtu Software