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The famously difficult green-eyed logic puzzle
Posted 8 years ago by boyt in category: geeky
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spydyrman - 8 years ago [ Reply ]
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If you are still confused after watching it, it's because the explanation sucks. They key isn't "common knowledge". The key is this: A, B, and C are there. You know how A+B alone plays out(second night), and so does C, so C is basically just waiting for A+B to resolve itself, and when it doesn't he THEN knows that he must be C (green-eyed and part of the problem). So now you know how A+B+C plays out, and so does D, who is waiting for the resolve at the third day, and when it doesn't happen he realizes the problem is actually A+B+C+D. etc, etc, etc. The problem literally builds on itself, but isn't explained quite the right way (nor have I given it justice, but this is just a comment section.) The number 100 is there to throw you off, and figuring out 2 or 3 people are just "steps" to figuring out any number, which they sort of glossed over real quick in the video. TL;DR If you don't get it, don't worry, the explanation sucked for laymen.

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spydyrman - 8 years ago
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  I did split that up for easier reading but it ignored my formatting, sorry! 

fredtavan - 8 years ago [ Reply ]
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Looking around and seeing ONLY people with green eyes would probably lead me to think I also have green eyes...

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