31–40 of 171 posts
It really isn't that secure since a bot could be used to calculate the checkmate and it takes more time than a normal CAPTCHA.
> it takes more time than a normal CAPTCHA Most of these captchas are very easy. If the targeted king was easier to spot (e.g. marked red) I'm sure I would solve them faster than the omnipresent reCaptchas (even knowing that I only need to type the less legible word).
It's astounding, I'm not even sure how to offend them, since I don't think any sort of insult is enough for whoever "designed" this.
I thought image recognition on that would be trivially easy to compute? You could identify each piece, then just analyse it to work out the 1 move. As a layman, it seems less computationally difficult to solve that than a state-of-the-art captcha currently?
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> it takes more time than a normal CAPTCHA Most of these captchas are very easy. If the targeted king was easier to spot (e.g. marked red) I'm sure I would solve them faster than the omnipresent reCaptchas (even knowing that I only need to type the less legible word).
Yes but for some people that don't know how to play chess it would be very hard.
And as somebody else pointed out, maybe they don't want new topics asking what are the possible moves of a queen.
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A quick google gives this; apparently from the creator. "I[t] tells how fast your computer talks with lichess server. It measures the time a message needs to make the round trip from your browser to lichess, then from lichess to your browser. I'm interrested in knowing what your ping is, depending on the country/city where you live. I live in Le Mans, France, and my ping is around 30-40ms. What about you?" {source} h…
I know what a ping is. Why would someone do that on a website? It just seems pointless and causes additional load on the server.
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> it takes more time than a normal CAPTCHA Most of these captchas are very easy. If the targeted king was easier to spot (e.g. marked red) I'm sure I would solve them faster than the omnipresent reCaptchas (even knowing that I only need to type the less legible word).
Yes but for some people that don't know how to play chess it would be very hard.
Can brute force answer from the server quicky: http://en.lichess.org/captcha/0nbdeigw?solution=a1+a2 returns either 1 or 0. The total complexity of this to brute force is 768 possible moves. Most of us here could write a bot to spam their site with less than 30 minutes of time and effort.
Philistine! At least plug it into a chess AI and do it properly.
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Philistine! At least plug it into a chess AI and do it properly.
I don't think a chess AI would offer much benefits to execution time with a brute force that is that small.
Can brute force answer from the server quicky: http://en.lichess.org/captcha/0nbdeigw?solution=a1+a2 returns either 1 or 0. The total complexity of this to brute force is 768 possible moves. Most of us here could write a bot to spam their site with less than 30 minutes of time and effort.
For the humans, just give another board (and add a time delay)