How can I verify the arrangement of objects in a specific pattern?

Hey guys, all good?

I have a question. What's the best way to check if, for example, four objects are positioned side by side, forming a square or another shape? If I arrange four objects like this:

[obj 1][obj 1]

[obj 1][obj 1]

How can I verify if it's true? Any suggestions?

Many thanks.

You can create "sensor object" to check how many neighbour are they. Here a link to my blog post that I am talking about:

onicstudios.wordpress.com/2023/02/06/efficient-sensor