Show posts with acf query

[ektor]

Hello.
I am trying to create a query loop for a post category with some custom fields.

I have a custom field “front_page_show” with a checkbox with only one value “YES”.

I want the query to show only the posts in this category with the checkbox choosen YES.

To the query builder i chose Type: Posts, Post type:Post, Terms: The category i want and then at META QUERY i make the choices as the image bellow, bot nothing is showing up.

Can someone help me please with this

[ektor]

I found it myself.

This is the right syntax of the meta query.