Below is a link to a very short survey incorporating a logic puzzle. Reading the puzzle won't take more than about 20 seconds, but to answer could well take longer! Please distribute widely. I will share the results and their implications for HCI and User Experience. http://www.surveygizmo.com/s3/2702734/Three-Blocks Regards, William Hudson User Experience Strategist, Syntagm Ltd Associate Lecturer, The Open University -------------------------------------------------------------- Tip of the Day: Forward out-of-office replies to mailto:[log in to unmask] CHI-WEB: www.sigchi.org/resources/web/faq.html MODERATOR: mailto:[log in to unmask] --------------------------------------------------------------