u/Conscious_Guide_3295

This is for a word puzzle game ironically, but I need the answer for the genus of a level 10/n = 10 Menger Sponge in order to solve a cipher. I know this is a slightly tedious ask, but if anyone could at least point me to a helpful resource on solving it I'd appreciate it.

P.S. Assume I know nothing about the basics of topology because my highest level of math was introductory calculus lol