I need help solving this puzzle. It's been haunting me for

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Anonymous
2017-08-31 02:02:29 Post No. 373227
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Anonymous 2017-08-31 02:02:29 Post No. 373227 [Report]

I need help solving this puzzle. It's been haunting me for years. The professor at that time gave us this puzzle to solve, claims not one of his students in his entire career has solved it. The old man passed away so he took the answer with him. I figured the great people of 4chan can solve the problem. If anybody knows what the puzzle is called and can Google the answer it will greatly be appreciated. I'll tell you how it goes now.
The goal: draw a line make sure your line passes through all the walls. I've marked those down with the red dots.
The rule: you can't have your line pass through a wall twice nor ride along the walls. You can use the other end of the line if you please.
The hint: there are technically two answers but it's the same.
Please help me out this dumb thing thing to rest so I can put it to rest.

Thanks.

Anonymous 2017-08-31 02:24:43 Post No.373241
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Anonymous 2017-08-31 02:24:43 Post No.373241 [Report]

>>373227
Someone bullshitted you.

You can use Euler's theorem to demonstrate that a solution is impossible.

Anonymous 2017-08-31 02:44:47 Post No.373248
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Anonymous 2017-08-31 02:44:47 Post No.373248 [Report]

>>373241

You're kidding....

THAT FUCKER

Anonymous 2017-08-31 02:53:29 Post No.373249
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Anonymous 2017-08-31 02:53:29 Post No.373249 [Report]

>>373248
Briefly, you can only trace a path if there are two or zero rooms with an odd number of doors.

Because rooms 1, 2, 4 and the outside all have five doors, it can be proven that you can never trace an "Eulerian path" through them, and that there can be no solution.

https://en.wikipedia.org/wiki/Seven_Bridges_of_Königsberg#Euler.27s_analysis