AI for 3D Tic-Tac-Toe

Hey everyone,

I'm doing a 3D Tic-Tac-Toe 4x4x4 with an AI for a school assignment and I'm facing two problems that I would like to ask you.

The first one is really simple:

This is my interface (I know this is still very raw and there are a lot of places where I can improve) and I would like to remove all those X and Y axes, how can I do this ?

The second problem is about the AI, I'm very lost at it. How can I do a simple stuff like see if a row/column is fully empty and play there or something like this.

Thank you.