I am seeing the recaptcha is not responsive and gets cut off.

Eric can you elaborate on using regular expressions for a type of captcha?

I wonder how suspect these are to spam being an iframe anyway? I have a couple sites and never got any spam through the form.

Thanks

Can this be a math problem. Like 5 + 5?

/^[17]{2}$/

This appears to work for a 10+7 math problem.

This works except both 17 and 11 work. Oh well that's fine I guess.

Dave did you see this article?
http://www.coffeecup.com/help/articles/ … s-captcha/

I use this as the expression in my form. I have them spell the answer to the math problem.
/(\W|^)word(\W|$)/i
Replace "word" with the answer to the math question. So if the question is "What is 7 + 3" the only accepted answer will be "ten" or any combination of upper and lowercase (ie: Ten, tEn, TEn....).
/(\W|^)ten(\W|$)/i