Impossible CAPTCHAs: Part II

[krt]

@spock and ClickFanatic:

Who says a bot can't try more than once? I'm sure you know they excel at that with automation.

[ClickFanatic]

[kutar]

If you still want to use CAPTCHA, you may need to try something crazy that even human cannot answer XD:

http://mgccl.com/2007/06/07/wh.....e-spammers
(Any math guy can give me the answer of the math CAPTCHA?)

http://mgccl.com/topics/captcha

Old collection:
http://www.hemmy.net/2007/07/2.....n-the-web/
*the answer for the math captcha: http://dabacon.org/pontiff/?p=1535


Well, they look little more normal:
http://cow.neondragon.net/inde.....aptcha-Wtf

okay, if you want the spammar can't harm you, just make the CAPTCHA create some false-positive and your CAPTCHA will work fine (like google)
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Sleepless Cat‧The one looking for her path...