I was able to solve the first puzzle by placing a 1/X singularity next to the snowball. It correctly rolled down but the just clipped through and blasted away.

I was able to solve the first puzzle by placing a 1/X singularity next to the snowball. It correctly rolled down but the just clipped through and blasted away. It is very hard to cover these sorts of cases with a naive physics model because the numerics get messy very quickly. Very cool project.