What is the shortest game you've ever played?

Interesting question! My shortest Tournament game ending in mate-in-1 [C player]: Fuchs-Layton 1976 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.d4 fxe4 5.Nxe5 Nxe5 6.dxe5 c6 7.Ba4 {Nc3 is a crazy gambit line for white. } 7...Qa5+ 8.Nc3 Qxe5 9.O-O Nf6 10.Re1 Bc5 11.Be3 Bxe3 12.Rxe3 d5 13.Re1 Ng4 14.g3 Qh5 15.h4 O-O 16.Qd4 Ne5 17.Kg2 {Qf3+ 18.Kg1 Bh3 0-1
My shortest tournament win against an A-player: Layton - Melbourne 1976: .e4 c6 2.d3 d5 3.Nd2 dxe4 4.dxe4 Nf6 5.Ngf3 Bg4 6.h3 Bh5 7.e5 Nd5 8.e6 fxe6 9.g4 Bf7 10.Ne5 Bg8 11.c4 Nb6 12.Bd3 N8d7 13.Ndf3 Qc7 14.Bf4 O-O-O 15.Qe2 Nxe5 16.Bxe5 Qd7 17.O-O-O Qe8 18.Qe3 Bf7 19.a4 {Black Resigns}
Shortest tournament win against a master [Marty Applebury] was 34 moves of pure chaos. I don't think either of us knew what was going on until the last few moves.

Once I played a blindfold game where ilegal moves meant a loss. It went 1.e4 c4.

Mine with bot random mover atomic

This is mine: lichess.org/s1B095X9UhkD

@YJP wow a mate on f7

This is mine:

Just Kidding, This is actually mine(The fastest one yet :D):

e4 and resigns ... lichess.org/JIAPIkaA (because e4 is best by test and my opponent knew he was gonna lose)

GGs

There is a two move game in the chess database that ends with checkmate.
The moves are: 1.f4 e6 g4 Qh4#