Fool’s mate is the quickest mate in the game of chess possible: in just 2 moves. Even in the games of beginners it rarely occurs. Now you know why it isn’t wise to start the game with 1.f3. It weakens White’s kingside in major way. Fool’s Mate just exploits this weakness right away.
1. f3 e5 2. g4 Qh4#
Taker a look at the following variation.
This is the faster mate possible in chess.