Mate in 1 (wrong answers only)

You were the imposter and killed your own king on accident

The king got bored and kis

g8=K+

Say 'oh my gosh! I have an appointment with my chess teacher in 3584535445485548656439482 hours! I gotta go quick! Bye!' And leave the game

You sneeze, knock over their King, and then say, “Oops, sorry, I accidentally knocked over your King, I guess I win.”

Take a hammer and crush every single black piece.

or throw the board to jupiter

or dump every black piece into a shredder

or offer a draw and say that you won

g8=wazir

Totally works

Rxg7

King b 7 check.

Nf3

Eat the king and paint the rest rainbow

You cut the swiss cheese and you find out that its moldy and you both go to the doctor cause of the fumes

KxNh2