Photo Captcha with user defined images to reduce the spambot prize/payload to one website at a time. Creating a new captcha puzzle one new image at a time. Building a new spambot for each website with unique user defined images does not make financial sense for the spammer.
A captcha with "Which one of these things is not like the other?" puzzle.
Version history: - 1 may 2009: created - 5 may 2009: public released - 7 may 2009: admin does not need to use captcha, catches php.ini file error




