Comment by simpaticoder

This has the flavor of a post written by a programmer who got a particularly interesting interview question. They continued working on it when they got home. Hey, it's happened to the best of us (I was once asked to write "tic tac toe" and at the time I was really getting into functional programming and simple data structures, and for some reason I didn't stop working on the problem for a few days because I wanted to generalize tic-tac-toe in scale, depth, e.g. deeply nested tic-tac-toe, and dimension, where the board has more than 2 dimensions) but I'm not sure I would have written a paper "What every programmer should know about implementing nested tic-tac-toe on large arrays in high dimensions" because the answer is, almost certainly, nothing.