TinyChan

Topic: Very cool logic problem.

+Anonymous A3 years ago #62,841

Bob is looking at Anne. Anne isn't looking at Jim. Jim is married, Bob is not, and we don’t know if Anne is married. Susan is looking at Brian. Brian is divorced. Is a married person looking at an unmarried person?

I'll reveal the answer later in the week if nobody gets it.

+Anonymous B3 years ago, 1 hour later[T] [B] #633,881

You're a piece of shit.

+FuckAlms !vX8K53rFBI3 years ago, 1 hour later, 3 hours after the original post[T] [B] #633,885

error: insufficient data

·Anonymous A (OP) — 3 years ago, 21 minutes later, 3 hours after the original post[T] [B] #633,888

@previous (FuckAlms !vX8K53rFBI)
The data is perfectly sufficient.

Let me know if you need more time to think. I love logic problems and this is one of the most ingenious I've ever come across.

+Anonymous D3 years ago, 1 hour later, 5 hours after the original post[T] [B] #633,896

Yes because Brian is a Catholic, their church doesn't believe in divorce.

(Edited 23 seconds later.)


·Anonymous A (OP) — 3 years ago, 11 minutes later, 5 hours after the original post[T] [B] #633,897

@previous (D)
> Yes because Brian is a Catholic

Nobody's religion is mentioned in the scenario.

+Anonymous E3 years ago, 3 minutes later, 5 hours after the original post[T] [B] #633,898

@previous (A)
I think it is.

·FuckAlms !vX8K53rFBI3 years ago, 9 hours later, 14 hours after the original post[T] [B] #633,922

@633,888 (A)
No, it isn't. Even if we make unsafe assumptions there is still insufficient data to determine who is looking at who.
We already know Bob is not looking at Jim because he's looking at Anne.
The same goes for Susan who is looking at Brian.
We know that Anne isn't looking at Jim, and we can assume that Jim is not looking at himself.
This doesn't help us unless we make an additional assumption...
With this assumption we are forced to conclude that Brian is looking at Jim, and thus he cannot be looking at anyone else.
We then also eliminate the possibility that anyone else is looking at Anne or Brian.
We are then left with additional options which cannot be further narrowed based on the data available:
Anne or Jim could be looking at either Susan or Bob

And this doesn't even take into account the "marriage" aspect which would be used as a trip-up in a good logic puzzle because one's status as 'divorced' does not necessarily exclude the possibility that they have remarried.

·Anonymous A (OP) — 3 years ago, 6 hours later, 21 hours after the original post[T] [B] #633,933

@previous (FuckAlms !vX8K53rFBI)
> No, it isn't.

It is. Let me know if you want me to walk you through where you're going wrong in your 'reasoning'.

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