Consecutive Tesseract
This next puzzle exists thanks to Ed Pegg who recently posted a graph drawing of a 4-D cube with minimal crossings on Facebook. I've made 5-D cube puzzles before, but I liked the look of his image. I did adjust the angles to make it fit better given the size of the circles involved.
The goal is to fill in the cells with the numbers 1 through 8, each appearing twice, so that no number is adjacent to itself. The bolded lines indicate that numbers in those cells are consecutive. Lack of a bolded line indicates those numbers are not consecutive.
One cell is given, otherwise the map sending x to 9-x would prevent a unique solution from being possible.
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