4 move checkmate

         Most everybody knows about the 4 move checkmate. But, many people don't. I have been playing chess for many years, and did not know it untill one month ago. Someone was tryng to pull it up on me. I didn't understand what the guy was doing untill his Queen's Pawn move forward, because I was doing a whole new strategy with moving the other pawns. So, I saw it and reversed it to him. I felt happy and the need to laugh because his plan had totally backfried.