Clever idea!
It took me a couple attempts to understand what I was meant to do though. I think it would be worth updating the description to say that the shape on the right is the one you are changing the shape on the left to match (at first I thought I was able to place the card on the left or right to change that shape).
Once I understood, I got to level 26 (although I'm pretty sure there were a couple times where they didn't actually match, but it was still accepted). It was fun, but maybe I'm just a math nerd