Any two edges that are not directly connected.
Comment on xkcd #3125: Snake-in-the-Box Problem
Part4@infosec.pub 1 week ago
This is not my wheelhouse, and presumably were what I am about to suggest be right a million other people would have already pointed it out (not on lemmy necessarily, just in general). But aren’t all of those sides equal so the snake effectively shrinks/grows as it moves around the hypercube.
To be honest I don’t even understand what the cartoon means by ‘two non-consecutive parts of its coils’.
Phoenix3875@lemmy.world 1 week ago
sanguinepar@lemmy.world 1 week ago
Took me a while to follow that too! The three examples of fails at the top each show instances where there are non-consecutive parts of the snake on adjacent corners - it’s the lines highlighted in red.
Basically no two parts of the snake that aren’t directly joined to each other in the snake are allowed to be on corners which are only a line apart.
I think.