Generating all possible functions/programs to solve a challenge
In this meta post, isaacg pointed out that, under current consensus, the following Python code (edited to fix a mistake) could possibly be viewed as valid:
for i, code in enumerate(all_possible_strings): try: exec("func"+ str(i) +"="+ code) except: passGiven enough time, the desired function will eventually be generated and assigned to func<some large number>, which could then be called with the desired arguments and would return the desired result.
Though we do not forbid brute-forcing, solutions of this sort are clearly exploitative in the same vein as MetaGolfScript, and we certainly do not want this solution on every challenge where functions are allowed.
