I can see someone ran an ai review on the game also.
If you’re interested I’ve been hoping to make a thread to try to outline different ways one can use the ai reviews to find one or two things to take away from each game. I could leave some ideas there instead.
I’ve mainly focused on my own games and mistakes so far because they’re easier to remember 
Aside from that I think @jlt covered some key points.
Regarding this specifically if they want to press to get a wall in the centre, one option is to just be happy and make points on the side and in the corners
If you can imagine any of these continuations for the corners and look at the relative sizes of them.
Imagine if your opponent gave you all four of those together you get get probably 80 points.
Then you can keep chipping away at their centre or just jump right in and try and live and if you do it’s game over for them