What do you call that when there is no obvious forced moved?

There is a term that is used for the state of a game when there is no obvious move to be made.

At the end of a sequence of moves when there is no, piece to defend or take....

What's that called? Thanks!

Thank you, but I remember reading in an article here on chess.com, which I can't locate again.  When considering candidate moves... During sequences in the game you get a series of moves that are obvious, but then at the end of that, there is a move that is no longer obvious.  That state has a name.  The game reaches a state of ___________

 No obvious move to make and nothing to capture are different situations... sometimes the same, sometimes not.

I think Dan Heisman had a word for a position with no more forcing moves... I forgot the word he used though. The word that's stuck in my head is "quintessence"... which is wrong, but I can't think of the right one

critical moment?.... some critical moments have a forced response, but it is sometimes not obvious

Correct....the term is quiescence!

 https://www.chess.com/article/view/get-better-at-chess-for-everyone-comparison

Thanks!

zugzwang.

Thank you, the wrong word blocked my mind from finding the right one, very annoying.

Not Zugzwang, newengland7; I read a good book by Ronan Bennett called 'Zugzwang' set in 1914 Russia, in St Petersburg. Zugzwang is defined as 'used in chess to describe a deadly position in whick a player is obliged to move, but every move only makes his position even worse'. There is even a chess game written into the book. I recommend it.