Starmaze (nonfiction)
Starmaze is a puzzle consisting of patterns of nine cells which form a structure that neatly fills a nine-dimensional binary space.
It was created by John Cartan, and is based on a number of related puzzles which Cartan researched.
Commentary
It started with a game he had come across on a computer years ago that involved a square divided into nine sections where each section could be turned on or off. The game began with the middle section of the grid turned on, and the outer eight sections turned off. Clicking one of the sections would turn on/off other parts of the grid in a predictable way, but you could only click the sections that were already turned on. The goal was to click the sections in a way to end up with the outer eight squares turned on, and the innermost square turned off.