> Also, your job is not to break one thing, but rather to break the difference between multiple things. That kind of «differential reasoning» is its own separat

> Also, your job is not to break one thing, but rather to break the difference between multiple things. That kind of «differential reasoning» is its own separate sort of activity. This seems like splitting hairs. You could wrap this differential reasoning assignment in a function that returns true iff the outputs are different and achieve the same CTF-style behavior. The only difference here is that students get one assignment at a time instead.