Feeds

back to article We shall CRUSH you, puny ROBOT... with CHESS

An online forum is using chess puzzles as CAPTCHAs rather than the more traditional challenge-response tests which ask the user to identify distorted text. The CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a way for a website or online service to establish that a human has come calling …

COMMENTS

This topic is closed for new posts.
Silver badge
Joke

What is the airspeed velocity of an unladen swallow ...

that should fox them.

2
0
Anonymous Coward

Re: What is the airspeed velocity of an unladen swallow ...

African or European?

5
0
Silver badge
Mushroom

Re: What is the airspeed velocity of an unladen swallow ...

Aieeeeeeeee......!!!

2
0
Silver badge

Computers can beat grand masters but how powerful and expensive were they? I know Moore's law (pet peeve, should be Moore's observation) will bring that down but in the mean time could be useful.

1
2
Silver badge

Grandmaster skill not required...

... if a puzzle is to be easy enough for a reasonably competent chess player to solve, then an average PC running gnuchess will also be able to do it. Massive horsepower was only required to defeat grandmasters because their game is at a *much* higher level than that of even the most talented players in a normal chess club.

2
0
Silver badge

Re: Grandmaster skill not required...

No it's because grandmasters cheat. They memorize all the possible moves before the game even starts and some of them cast spells during the match. I know this because i used to be a grandmaster myself years ago, but I couldn't cope with the extravagant lifestyle and all the drugs so I switched to work in IT.

5
0
WTF?

Re: Grandmaster skill not required...

Spells?

0
0
FAIL

Not even a PC is needed....

The first one I saw was a "mate in one" - that could have been done on most chess programs running on a palm pilot or similar ten years ago.

It's just for fun - if they were to use something like this on TicketMaster, it would be hacked in no time.

0
0
Silver badge
Thumb Up

Re: Grandmaster skill not required...

"Grandmaster skill not required... if a puzzle is to be easy enough for a reasonably competent chess player to solve, then an average PC running gnuchess will also be able to do it."

Maybe that's not the idea.

Maybe the idea is to stop people who can't figure out how chess pieces move from using the forum.

And this I applaud.

Can we expand it to the entire Internet?

8
0
Silver badge
Thumb Up

Re:

Agree completely. Misuse of terms like 'law' distort the thinking of non-science types. The 'theory' of evolution is an easy example that gives idiots ammunition.

1
0
Terminator

Re: Grandmaster skill not required...

"No it's because grandmasters cheat."

I'll always remember a story I heard years ago, probably not true, but good all the same.

During one of these Human vs Machine chess tournaments, the Grand-Master complained that the Computer made an illegal move. The programmers were adament that their code was performing correctly as they had programmed it to only perform legal moves as per the rules of the game.

They subsequently ripped apart the code and discovered that the computer had indeed 'learned' an illegal move. It transpired that the Grand-Master had played the exact same move earlier in the tournament, and continued to win that match. The computer (which was not programed to error-check its opponants - After all, Grand-Masters know the rules... right?) had thus integrated that illegal move into it's database.

2
0
Thumb Up

"should be Moore's observation"

Yes, yes, YES! Please accept an upvote for exposing that particular bit of bolloxy hype!

More cliche debunking to follow. "There's a black hole in our finances." FFS

1
0
Silver badge

Thanks.

0
0
Silver badge

I imagine it would be extremely easy to write an anti-CAPTCHA tool to fox this. However, why bother when this is one forum for reasonably brainy people?

0
0

I don't know, some of those CAPITCHA images are almost unreadable! I think a chess move may actually be easier!

2
0
Facepalm

The real use...

The technology is often used to frustrate humans signing up to web mail accounts and similar services.

2
0
Facepalm

Limited number of tries might help

I just tried it out. It let me retry as many times as I needed to hit the right combination.

For people who think themselves intelligent, they've utterly failed in understanding how spam bots work.

2
0
Silver badge
Paris Hilton

I prefer the calculus

Also, after the fifth win for checkmate-in-one-move, I get the same situation over and over...

0
0
Anonymous Coward

Hi I'm the Chessmaster

Want to play a game?

0
0

Re: Hi I'm the Chessmaster

Can we play "Global thermonuclear war"?

1
0
Bronze badge

Re: Hi I'm the Chessmaster

African or European? Wait, I'll get the hang of this reference thing in a minute.

0
0
Silver badge

Not the first

I signed up for an online chess site years ago which had a chess game as its captcha. You started off with a king in check, you had to get the kind out of check to authorize your account.

0
0
Silver badge
Joke

Shurley the best CAPTCHA would be a fiendishly difficult problem which a computer can solve relatively easily?

Then you only get through if you fail...

1
0
Silver badge

gonna see how many images of spam i can post on their forum

0
0
Anonymous Coward

Hal - I'm sorry Dave, I can't do that.

Dave - Presumably your stuck on bishop to knight 4

Hal - Daisy, daisy etc

1
1

This post has been deleted by its author

Bronze badge
Thumb Up

This is a rare example of a situation where security by obscurity really works well. Because each spam posted is of marginal benefit, it's only worth doing if they can post thousands with minimal effort. So when a small site implements a novel CAPTCHA, they're as good as bulletproof as far as the spammers are concerned. They could write a bot capable of beating it, but why bother? Of course if lots of sites started using it, or a big player like Google, it would become worth doing.

In other words the chess puzzle itself isn't really that good, but since no one else is using it, no bot in the wild will have the faintest clue how to deal with it.

5
0
Facepalm

um....

but , but , computers are awsome at chess!

0
0
Silver badge
Terminator

First it was deciphering messed up words, then it was jigsaw puzzles.

I'm waiting for the day where a website needs a drop of blood and a soft tissue sample to verify me as human.

0
0
Anonymous Coward

Sound like a porn site validation check..

"In order to enter this site please tell us how you shift your bishop"

5
0
Silver badge
Joke

Re: Sound like a porn site validation check..

Oddly they used exactly the same validation question on Cardinals attempting to enter the Vatican last week.

2
0
Anonymous Coward

Re: Sound like a porn site validation check..

They have a different system for religion organisations...it's called RAPTCHA

0
0
Silver badge

Bah!

An acronym that drops three words, one of them a verb, doesn't work and needs retconning to something that does.

1
0

Spam bots...

...just got pawned.

2
0
Meh

Clever stuff!

That's clever. No machine could ever crack a chess puzzle better than a human. Sarah Connor 1, Skynet 0...

I think all chatrooms should have an KOL Altar of Literacy style captchas:-

When they get [there|their|they're], [there|their|they're] going to put on [there|their|they're] mittens.

[Your|You're] nuts if you think I'm going to polish [your|you're] armor for free.

2
0
Silver badge
Headmaster

Re: Clever stuff!

The problem with that approach is that it would exclude more human beings than the current distorted-text CAPTCHA currently does...

1
0
Bronze badge

altar of literacy

HippyFreetard, don’t forget “[to|too|two]”, “[ewe|yew|you]”, and “[for|fore|four]”. You could also expand “[your|you’re]” to “[ewer|yore|your|you’re]”. (Personally, I’d split them into “[ewer|you’re]” and “[yore|your]” as appropriate, but of course pronunciation varies by dialect.)

Just for laughs, throw in “[armor|armour]” as a trick question.

2
0
Silver badge

Re: Clever stuff!

"The problem with that approach is that it would exclude more human beings than the current distorted-text CAPTCHA currently does..."

Only illiterate ones.

And I view that as a positive step forward.

3
0
Thumb Up

Re: Clever stuff!

"When they get [there|their|they're], [there|their|they're] going to put on [there|their|they're] mittens.

[Your|You're] nuts if you think I'm going to polish [your|you're] armor for free."

With education standards going down as they are... I think that test would beat most university graduates. Not that that would be a bad thing.

1
0
Bronze badge

Re: Clever stuff!

And if your vision is getting dodgy due to macular degeneration, too bad.

I have no problem with screen text, but some of those CAPTCHA images are indecipherable.

0
0
Silver badge
Happy

Re: Clever stuff!

...polish [your|you're] [armor|armour] for free.

Int'l version...

0
0

Can they please call the new technology Garry Captcharov?

1
0
IR
Thumb Up

I help run a specialist forum. CAPTCHAs weren't stopping the spammer, neither were the questions such as "Which of these is not a colour? Blue, red, or car". As soon as we switched the questions to being basic things about the specialist subject, we got rid of 99% of potential spammers. You have to put a contact address in there too, because there is always the odd person who wants to join but knows little about the subject yet.

1
0

Led any good rooks lately?

And now I will go hide.

0
0
This topic is closed for new posts.