Rubiks
Nah, I didn't solve it, but I came to realization today. To insight. The revolutional self-discovery of this boxes truant truth. I'd like to take the credit for this myself, but it was only when I had searched Google for the keywords 'Solve the Rubiks cube' that the reality popped into my mind. The cube is built upon one center axis, thus the center square on each side is immovable, it will always stay the same color. The squares on each side of this square have two sides, and thus two colors that will always be connected to each other. The corner squares all have three colors, all of them connected to each other as well. In the guide the author wrote that the most common problem was solving only one of the six sides at a time, a strategy that will lead nowhere, and I can see why now. I've always spun the cube around at random whilst trying to complete the pattern earlier, but now it suddenly looks more like a solvable puzzle than even before, and regular puzzles I am good at solving, too.
There are probably thousands of guides on how to solve the cube step by step, from any randomly generated combination of squares (which is numbered by over the gazillion), but I didn't have the patience to read through any of them. Hope I'll have the patience to try out my newfound knowledge someday, maybe. If you don't know about this genuine invention, Google it and gain wisdom, adjö.