Définition et Signification de "false [move]"

What is the origin of the idiom "false move" and when to use it?

The idiom "false move" originated from the game of chess, where a "false move" refers to a move that puts a player's pieces in danger or fails to advance their position. It can be used to describe a wide range of situations, such as in business, sports, or personal life, where a single misstep or miscalculation can have negative consequences.