A
fastest en passant mate
This is called scholars mate and it’s the very first checkmate that everyone learns to play, and the first one you need to learn to defend! If you take a moment after his Qh5 move and realize that he’s threatening Qf7 checkmate, you need to defend that. There are several good moves that’ll actually give you a big advantage!
[Site "Chess.com iPhone"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
1. e4 Nf6 2. e5 Nd5 3. d4 Nc6 4. Be2 d6 5. Bh5 Rb8 6. Bg5 Ra8 7. Bxe7 Rb8 8. Bg5 Kd7 9. Qg4+ f5 10. exf6# {1-0}