It's a really neat idea. You were right about it being similar to mine, but really that's only in the fact that you can divide and re-merge. Yours takes a more mathematical approach which I think is really neat. The level took me a while to figure out, but once I did it was pretty satisfying, so you definitely accomplished that with it! I wouldn't be so hard on yourself about it just because you ran into issues with collisions and such. It was an experimental idea, and you should be proud of what you accomplished and also learn from your mistakes too!