How do I find the worst move?

Any suggestions? are there sites or engines online?

The worst move in any position is to resign.

could I use SF to calculate it somehow? and I don't understand if #2 didn't get the title or tries to insult

@WWWWWWWWWMMWWWWWWWWW I don't think there is any convenient available way, but at worst you can play all possible moves and see the evaluation.

Or SF is opensource, so you could automate this process with a script. Or perhaps use only its static evaluation function to get the "positionally worst move", and replace it with a simple 13358 function to get the "tactically worst move".

As for "#2 is insult", it's a joke.

There are puzzles available online where you have to find the WMOTB

Worst Move On The Board in case you are not familiar.

I quite often find these when I am playing

thanks,
but @CrowChess where can I find these puzzles?

just search for Worst Move On The Board

Streatham & Brixton Chess Club have some good ones

If possible blunder a checkmate.

Otherwise blunder your most valuable piece. If in rare cases this proves to be the beginning of a brilliant combination simply refuse to play the follow-up and make a pointless King move instead.

If u lose that game, then u find one