90 percent of everything : Usability Blog
Written by Harry Brignull

World’s best CAPTCHA

December 17th, 2008 by Harry Brignull3 comments

Having problems finding the budget for costly usability testing? Here’s your solution.

If your users can solve this CAPTCHA, they will be able to cope with anything you throw at them!

worlds best captcha

Thanks to James Wragg for the link!

3 comments so far | Leave a comment
  1. Weilliam

    Erm, and the answer is 0?

  2. KMB

    You should refresh the site a few times to get some more math-fun.

    Given the circumstances (it’s a site with math-related software, as far as I can see) the captcha is very on spot.

  3. World’s Best CAPTCHA - Random musings

    [...] via 90 Percent Of Everything. [...]


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