A Puzzle

by **Obsidian** » Sat Aug 11, 2012 2:54 am

You asked your question wrong; I've seen the original one. How would P2 know that his dot isn't green for an example? And if they knew that there only would be two colors(black and white) which they didn't; they only knew of there being one black dot and no other restrictions to the colors. Had they known that there was both black and white; the guy with the white would have seen two black dots, and he would have been pretty fast at figuring out that he had a white dot on his forehead.

Anyway, I think you made this into a trick question by misunderstanding the original one, but I'm drunk, so I could very well be too stupid to get it at the moment. :P

Obsidian wrote:You asked your question wrong; I've seen the original one. How would P2 know that his dot isn't green for an example? And if they knew that there only would be two colors(black and white) which they didn't; they only knew of there being one black dot and no other restrictions to the colors. Had they known that there was both black and white; the guy with the white would have seen two black dots, and he would have been pretty fast at figuring out that he had a white dot on his forehead.

Anyway, I think you made this into a trick question by misunderstanding the original one, but I'm drunk, so I could very well be too stupid to get it at the moment. :P

Hmmmmm

Drunk or not Obsidian, just what self respecting antisocial would allow themselves to be manipulated by some baastaard of an employer. Tell the creep to stick his fecking job up his arse or just waste him, dependent on your inclination. Simples.

by **Misanthropic** » Sat Aug 11, 2012 3:16 am

Rule #4 only lists things that can be used to view their reflection.

There is nothing saying that he can not touch the dot. He could have touched it shortly after and transferred the ink onto his hand.

by **Obsidian** » Sat Aug 11, 2012 3:21 am

I'm wondering if Pseudo tricked people here by asking the question wrong; because if he did he succeeded. A few gave the answer to the original question, and it didn't apply in this one, so they must have searched for the answer, and then posted it without even getting it. :P

by **MacBuddhaBurger** » Sat Aug 11, 2012 3:27 am

Pseudo = insomniac, american, or just plain bullsh!tter?

:mrgreen:

by **Pseudo** » Sat Aug 11, 2012 3:29 am

Obsidian wrote:You asked your question wrong

I heard it from a friend. I paraphrased, but I didn't ask the question wrong. The logic is still there--there is only a minimum on the black dots, so the guy with the white dot has no way to tell if he has a black of white dot. He's basically screwed and was never going to get the job. You're drunk, though, so I won't hold it against you.

Obsidian wrote:I'm wondering if Pseudo tricked people here by asking the question wrong

No, but that's a good idea (note to self).

MacBuddhaBurger wrote:american, or just plain bullsh!tter?

Since when were these two separate things?

by **MacBuddhaBurger** » Sat Aug 11, 2012 3:38 am

Pseudo wrote:
MacBuddhaBurger wrote:american, or just plain bullsh!tter?

Since when were these two separate things?

Are you trying to hint that you may be an insomniac?

Or just covering your tracks?

by **Obsidian** » Sat Aug 11, 2012 3:48 am

Pseudo wrote:
Obsidian wrote:You asked your question wrong

I heard it from a friend. I paraphrased, but I didn't ask the question wrong. The logic is still there--there is only a minimum on the black dots, so the guy with the white dot has no way to tell if he has a black of white dot. He's basically screwed and was never going to get the job. You're drunk, though, so I won't hold it against you.

You didn't specify if they knew if there was only two colors.

And if they did know it would be the easiest for P3; P3 would see 2 black dots, and it would be very easy for him to deduce that he had white if one of them had to have a white dot. And that's because the variable of a fourth dot is missing from your question.

And if they didn't know how many colors there was none of them would know. Except if there was only one black dot; then the black dot guy would be able to figure it out. :P

by **Pseudo** » Sat Aug 11, 2012 3:56 am

Obsidian wrote:You didn't specify if they knew if there was only two colors.

Pseudo wrote:he draws either a black dot or a white dot on each one's forehead

Not explicit, but it's a reasonable assumption.

Obsidian wrote:if one of them had to have a white dot.

Pseudo wrote:2) There is at least one black dot. There are no other restrictions.

by **Obsidian** » Sat Aug 11, 2012 4:59 am

Pseudo wrote:
Obsidian wrote:You didn't specify if they knew if there was only two colors.
Pseudo wrote:he draws either a black dot or a white dot on each one's forehead

Not explicit, but it's a reasonable assumption.

If they know there is two colors then the second rule won't matter because P3 will know that he must be white when the others are black. :P

Your question will work if P3 doesn't know whether he's black or not, but for that there will have to be another invisible employee none of them sees; for an example he could sit in another room.

Then we will have P1(black), and P2(black), and P3(white), and lastly P4(white) who sits in the next room. And they don't know if there is 3 black and 1 white, or if it is 3 white and 1 black, or if it is 2 of both before the test.

In that scenario P3 sees two black, but he can't conclude that he's white or black as well. :P

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