[p09p09p09]

Pro tip: You can usually get away with entering invalid similar characters on recaptcha when the word is really blurry. Substitute 'ri' for 'n', for example.

I like to do this as a game, to see what I can get away with, adds some fun to the drudgery of typing in a captcha.

[5l]

The really blurry word is the word they're trying to OCR; generally it doesn't matter what you type as it'll accept it provided the other word is entered correctly.

Of course your 'game' is hurting reCaptcha's goal of digitizing books.