So, the idea is that one of the Recaptcha words is the real password, and one is a word from a book Recaptcha is being paid to digitize. If you want to read my rants about this, just check out the 'recaptcha' tag for parts 1 to 3.
My previous approach was to try and guess which was not the password and type 'slave' in this space. This approach has become increasing unsuccessful. My new strategy is to not type the last letter of both words. This works every time.
And if one of those words is actually a password, it shouldn't work, should it? Hmmm?
Researcher Cracks ReCAPTCHA