Welcome to Mahemoff's blog on web development, UX, and software development. I most recently worked in developer relations at Google, focusing on Chrome and HTML5, and am now busy baking a few apps independently.
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(Update: Thanks ImageShack for deleting my images.)
I was wrong, the third character is apparently a nine.
There ought to be a Captcha gallery/blog for all these. Apparently I’m not the only one who feels that way. Oh well, blame the spammers.
But more to the point, what’s up with this Captcha brought to you by the letters “A…F”???? Hex captcha? Hey, why bother with letters at all, let’s just go with binary captcha.
Here’s how inaccessible Captcha should really be done. (My first in-blog form too 
).
Word! Most captcha’s totaly suck, including mine. But as you say blame the spammers.
[...] So, much of this is learning from usability: Stop hurting the users! There are so many problems with traditional CAPTCHAs described already by me, Roger Johannson, Peter Krantz, Michael Mahemoff, Bob Easton, Christian Heilmann. [...]
Well, I would suppose that captchas stop at least 90% of spammers. But then again, it’s the last 10% that are really hard core and send 90% of the spam.