I don't think it's a disingenuous idea; the a naive search solution is to fill in all of the boxes and then check if its a valid board. In fact, that is the onl

I don't think it's a disingenuous idea; the a naive search solution is to fill in all of the boxes and then check if its a valid board. In fact, that is the only possible way you could do it if your evaluation function returned either "solved" or "not".