Untangle: Difference between revisions

Explaining why level 28 is impossible.
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(Explaining why level 28 is impossible.)
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Red lines indicate tangled lines, while green lines indicate resolved/untangled lines.
Red lines indicate tangled lines, while green lines indicate resolved/untangled lines.
The goal is to have all of the lines green, or in other words, all of them being untangled.
The goal is to have all of the lines green, or in other words, all of them being untangled.
== Impossibility of Level 28 ==
Level 28 is proven impossible as a direct consequence of [https://en.m.wikipedia.org/wiki/Kuratowski%27s_theorem Kuratowsi's theorem]. The subgraph <code>K_{3,3}</code> can be found in that level.


[[Category:Quest games]]
[[Category:Quest games]]
[[Category:Games]]
[[Category:Games]]
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