-warning : true story alert-
In my high school years, I used to be in the chess club. One day, my friend taught me the famous 4 move win and told me how it was "the best, the fastest, most awesome winning strategy ever".
Later that night, it made me think... was it really the best move? I then played around with my chess board until I found a 2 move win starting as black(This was before the whole internet search thing was trending). Although it was not very likely to succeed, when I showed it to my friend the next day, his reaction was priceless.
-true story end-
Can you find the 2 move win in chess starting as black?
Internet makes this puzzle trivial so please try to do it old school like me in the days. Also if you already knew about it, you might want to leave the fun to someone else :)