Hardest captcha ever? • Hacker News Board

Re: Hardest captcha ever?

#31

Post by robinhouston » Fri, Mar 04, 2011, 3:17 PM UTC

The hardest captcha I've come across is the audio one used by Google on https://www.google.com/accounts/NewAccount. Click the little wheelchair icon to hear it.

It's so hard to decipher, it almost comes across as a cruel joke at the expense of blind people.

These are much easier, in that I can actually understand them.

Re: Hardest captcha ever?

#32

Post by derrida » Fri, Mar 04, 2011, 3:17 PM UTC

Why is this here? This is easy to a)break b)solve IF you a)finished high school maths(australia) b) know about pythons ocr libraries.

Re: Hardest captcha ever?

#33

Post by l0nwlf » Fri, Mar 04, 2011, 3:18 PM UTC

Stack Overflow should use a tougher version of it. Will weed out some noise.

Re: Hardest captcha ever?

#34

Post by derrida » Fri, Mar 04, 2011, 3:20 PM UTC

robinhouston wrote: post #31

The hardest captcha I've come across is the audio one used by Google on https://www.google.com/accounts/NewAccount . Click the little wheelchair icon to hear it. It's so hard to decipher, it almost comes across as a cruel joke at the expense of blind people. These are much easier, in that I can actually understand them.

I will say... "additional plugins required". If your blind you will miss that.

Re: Hardest captcha ever?

#35

Post by Luyt » Fri, Mar 04, 2011, 3:20 PM UTC

After a few reloads, I got this captcha:

- 2 + 1 - 0 + 0 * 0 + 3 - 3 = ?

Re: Hardest captcha ever?

#36

Post by kahawe » Fri, Mar 04, 2011, 3:24 PM UTC

I just use http://www.random.org/ instead and do not have to go through all that hassle.

Re: Hardest captcha ever?

#37

Post by kahawe » Fri, Mar 04, 2011, 3:28 PM UTC

pieter wrote: post #13

I tried a few, and it looks like most (all?) of them can be answered by wolfram alpha.

...which sort of defies the reason the CAPTC_H_A was put there in the first place - great!

Re: Hardest captcha ever?

#38

Post by brlewis » Fri, Mar 04, 2011, 3:29 PM UTC

robinhouston wrote: post #31

The hardest captcha I've come across is the audio one used by Google on https://www.google.com/accounts/NewAccount . Click the little wheelchair icon to hear it. It's so hard to decipher, it almost comes across as a cruel joke at the expense of blind people. These are much easier, in that I can actually understand them.

Once at MIT a blind student was showing me his screen reader. I couldn't make sense of the sounds at all, and asked if it was in some special code. He said no, it was normal language, just really fast. He had it read the current line on his terminal (this was late '80s). I could see the words it was supposedly reading, but I still couldn't map them to the brief burst of sound that came from the screen reader.

So maybe if you've been blind a while, the audio captcha isn't so hard to decipher. Keep in mind they have to make it hard for speech recognition software to decipher too.

Re: Hardest captcha ever?

#39

Post by kmak » Fri, Mar 04, 2011, 3:29 PM UTC

I run "algorithmist.com" and was getting quite a bit of spam with using only recaptcha. I was looking for something mathy.. I ended up giving mathcaptcha a go first and it seems to work well to stop the spam, but I was ready to create my q/a with algorithm questions, with the benefit that if you can't answer basic algo questions, you shouldn't edit the wiki anyways!

Re: Hardest captcha ever?

#40

Post by rararational » Fri, Mar 04, 2011, 3:35 PM UTC

robinhouston wrote: post #31

The hardest captcha I've come across is the audio one used by Google on https://www.google.com/accounts/NewAccount . Click the little wheelchair icon to hear it. It's so hard to decipher, it almost comes across as a cruel joke at the expense of blind people. These are much easier, in that I can actually understand them.

The normal google captcha is pretty damn hard, once I had to go through like 5 or 10 before I got it though lately it seems to have gotten a little bit easier (or I now know how to guess it better).