C# maths game (unity)

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C#

Unity2D

I'm creating a game where an admin can ask users questions. however questions will be math equations and the answers that the users give need to be in diagram form.

So I am wondering, would it be easier to just allow the admin to submit how the diagram should look, or shall I assign each particle in the diagram so that the game scans the diagram to see if its correct.

I'm kind of stuck on where to start

(BTW this is a 2d game)

What I have tried:

I haven't actually started yet