[alexjeffrey]

if the idea of the chess captcha is to be used once on a single site, (ignoring the fact that it's a chess captcha for a chess community) it's very over engineered. Jeff Atwood gets away with a captcha where all you have to do is type "orange" to post a comment[1] and even that manages to mitigate a lot of spam.

http://www.codinghorror.com/blog/2008/03/captcha-is-dead-lon...

[mpyne]

There's no such thing as overengineering if it entertains the users while meeting the mission intent. :P