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Lösungscode: Alle 12 Buchstaben in Box L (großgeschrieben). Eine Zeile nach der anderen, jeweils von links nach rechts. Keine Leerzeichen.
am 21. November 2025, 12:44 Uhr von Video Floral
I'm not sure how interesting this is, but there is actually a little backstory to this sudoku. Originally, I didn't really intend to create a new puzzle. I simply wanted to study dodecahedrons and their geometric arrangement possibilities in quasi-periodic structures. (This topic has been on my mind for a few years now.) And at some point during my exploration process (I don't want to call it research, as it's not really scientific), I wondered what would happen if, instead of changing the objects and their composition in space, you would change the nature of the space itself. What would happen, for example, if you placed a collection of dodecahedrons in a non-euclidean space with spherical geometry? Would it be possible to completely fill such a space if each face of one dodecahedron connected directly to the face of another one? And how many dodecahedrons would be required, at a minimum, to form a perfect, self-enclosed pattern?
I experimented with SketchUp for a while, but couldn't find a solution. However, because the question kept nagging at me, I finally programmed an algorithm that systematically tried out all possible compositions for different numbers of dodecahedrons in spaces with spherical geometry. It took about two weeks to complete the algorithm. (The calculation time was then 1.6 seconds.) The result: you need at least 15 dodecahedrons. (Incidentally, if my algorithm didn't make any mistakes, it's not possible to build such a self-enclosed pattern with 16, 17, 18, 19, or 20 dodecahedrons. I didn't continue searching. Obviously, the computing time increased exponentially with each additional object, and I was already thrilled with the elegance of the pattern I had found.)
For a while, it just sat on my computer as a simple table. But I wanted to do something with it. Eventually, I thought I could try to use the pattern within a sudoku. But oh boy, was that difficult. I'd rather not say how long it took me to come up with a functioning sudoku grid. But finally – I had to cheat a little with three boxes and move some cells into a separate column – it somehow worked. Until the very end, I wasn't sure whether this dodecahedron mechanism would even be suitable for an interesting puzzle. Ultimately, however, I think it works pretty well. In fact, I had to be careful that the clues didn't lead to an avalanche of conclusions too quickly, which I perhaps didn't entirely succeed in doing. For me, the beginning of the puzzle is much more exciting than the relatively intuitive end. But maybe that's the case with most sudokus...
Anyway, that's the story behind this strange looking puzzle. After all this work and in light of everything I've learned in the process, I'm really excited to finally share it with you.
Have a great weekend!
Video Floral
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