Mate in 1 (wrong answers only)

just blow up the board and your opponent and get arrested, and when you try to get yourself out of jail, finally say “checkmate!” so that the police recognize your voice and try to run to you and arrest you again.

Eat the board

Bz842873429378293728193871839208 from the fourth wall

And offer a draw right after

B69

become trump and say "I HATE CHESS" to offend your opponent (not a real suggestion btw, to not let it become offensive entirely)

67676767676767676767676767676767676767676767676767

mangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangosmangos

burn the board

Gun. Check. Mate.

Tell your opponent that you have never seen such a idiotic, stupid, insane board setup and you award him no points

how about you resign, change your mind, resign, change your mind, *fast forward* resign, change your mind, resign, change your mind, *fast forward*, resign, change your mind, resign, change your mind, and let your opponent get a chance to quit, therefore winning you the game since he just forfeited due to your inability to make up your mind. no one plays with such an indecisive player and you are now banned from fide and im and grand championship tournaments, even if you are such a good champion.