Post: Can you solve this? [Reward for 1st!]
02-22-2011, 06:32 PM #1
disgrace
Little One
(adsbygoogle = window.adsbygoogle || []).push({}); So hello there! =D Today I'm asking from NGU community one challenging but simple riddle. I will +rep and give some vBux for the first who can solve this.

We are in prisoner. There is three prisoners in ''shape of triangle'' on the prisonyard. There is 2 white cats and ''unlimited'' amount of black cats in the yard. There is ONE cat behind every prisoner.

- There is ONE prisoner with WHITE cat behind his back.

- Other TWO prisoners have BLACK cats behind their back

- Prisoners can't see which color of cat they have behind their own back.

- ..But prisoner can see behind other prisoner's back.

- Prisoners can't communicate any way.

- They can't move or use anything!

- Prisoners know the fact that there is only 2 white cats and unlimited amount of black ones in the yard.

Prison warder says to them that first one who can solve which color of cat does they have behind their back is free'd from jail. He must explain how he got the answer without watching behind.

So, question to you, my friend is that who is the prisoner who got the liberty? And also explain how you got the answer.
I tell it if no one cant figure it out.

Good luck!

EDIT: Oh so thanks to L3G1TxXZ4LUD3K ! He noticed that there is other answer to this riddle aswell! But yeah there is still no answer for the other way what I meant to be.

Answer #1: There is cats in the yard, right? The one with black cat COULD see white cat running in the yard. And in the triangle he can see that there is white cat behind one prisoner. SO he could yell ''I'm free! I haz teh black cat!'' and get his liberty until he ends up jail again. Smile

Answer #2: (Way I meant it.) So basically free'd prisoner is either #1 prisoner with black cat or #2 prisoner with a black cat. Why? Well prisoner with black cat can see prisoner with white cat and other prisoner with a black cat. Other prisoner with a black cat can see same thing. Prisoner with black cat said that he haves black cat because other one with black one didnt say anything. Reason is that he only saw white and black cat. Then the other prisoner got it because other one would have said something. I mean like if he can see 2 white cats, he would have know the answer. But when he didnt, other one got it. Mindrape, eh :carling:
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02-22-2011, 10:36 PM #29
CraigMurray95
Do a barrel roll!
well any of them could because the one with the white can see two black , and therefore know he has the white one and the other to can see the white one and know hey dont have it , and therefore know they have black ?
02-22-2011, 10:39 PM #30
disgrace
Little One
Originally posted by ccarlsen View Post
It does matter doesn't it? Like someone said previously, if the 2nd white cat is in the yard then the prisoners could look around, find the 1 white cat, look at the other 2 prisoners and then know what color they have.

For example if I am the one with the white cat, I look at the other 2, they have black cats..i look and see the 1 white cat in the yard, then i know i must have a 2nd white cat behind my back?

lol :carling:


Yes I know this. This would work but thats not what I have been searching. Maker of this riddle maybe didn't notice that but yeah.. :carling:

So yeah actually there seems to be 2 ways to answer this riddle.
I already gave rep for the first guy who noticed that. Lol I gotta make some changes at main post.
02-22-2011, 10:42 PM #31
Originally posted by CraigMurray95 View Post
well any of them could because the one with the white can see two black , and therefore know he has the white one and the other to can see the white one and know hey dont have it , and therefore know they have black ?
They just know there's 2 white cats and unlimited black cats. But they don't know what we know which is that 2 people have black cats and 1 has a white one.

For all they know they could all have black, or 2 of them could have a white one.

I think. My brain hurts :gluk:
02-22-2011, 10:44 PM #32
The_Platypus
Live Life, Play Cod
Originally posted by disgrace View Post
Ok lol I got worried how bad my grammar was! Thank you though. It is hard to figure out! =D


none could get out becuase they cant talk or communicate
02-22-2011, 10:47 PM #33
disgrace
Little One
Originally posted by ccarlsen View Post
They just know there's 2 white cats and unlimited black cats. But they don't know what we know which is that 2 people have black cats and 1 has a white one.

For all they know they could all have black, or 2 of them could have a white one.

I think. My brain hurts :gluk:


Dont hurt your brains. You will realize it. It is simplier than you though.

---------- Post added at 05:47 PM ---------- Previous post was at 05:46 PM ----------

Originally posted by Platypus View Post
none could get out becuase they cant talk or communicate

Well somehow one of them were more wiser than others.
02-22-2011, 10:48 PM #34
CraigMurray95
Do a barrel roll!
turn round and check.
02-22-2011, 10:53 PM #35
disgrace
Little One
Originally posted by CraigMurray95 View Post
well any of them could because the one with the white can see two black , and therefore know he has the white one and the other to can see the white one and know hey dont have it , and therefore know they have black ?


What you mean the white one can see two blacks so he could have white one? He can have black cat aswell.

---------- Post added at 05:53 PM ---------- Previous post was at 05:48 PM ----------

Originally posted by CraigMurray95 View Post
turn round and check.


Did you read what there was in main post?

''Prisoners cant move.''
02-22-2011, 10:59 PM #36
CraigMurray95
Do a barrel roll!
Originally posted by disgrace View Post
What you mean the white one can see two blacks so he could have white one? He can have black cat aswell.


yeah i know sorry , didnt understand it fully haha, such an idiot :(xD
02-22-2011, 11:02 PM #37
disgrace
Little One
Originally posted by CraigMurray95 View Post
yeah i know sorry , didnt understand it fully haha, such an idiot :(xD


Naw dude dont worry it is hard. Happy

Edit: Whats up people giving me -rep because of my grammar. OMG just pm me if you cant understand a part. And why does other people do. I'm not english or anything..

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