What is the fastest/shortest possible checkmate? What is the minimum amount of moves to checkmate a side?
Two moves! And this has a name as well! It is called Fool's mate!
[title "Fastest Mate"] [fen "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"] 1. f3? e5 2. g4?? Qh4++