Have you ever played chess? If you’ve played for any length of time, you most likely know of the dream that many chess players share: to amass an army of queens, the most powerful piece on the board. But with this puzzle, that dream is about to turn into a nightmare.

During my talk we will be discussing the rules of the problem, a foolproof (if not necessarily speedy) algorithm for solving it, diving into a bit of the math behind the number of solutions for any given n, and even looking at some variations of the puzzle itself. Turns out there’s a lot of them.