Comment by ajtulloch

- https://www.cs.utexas.edu/users/flame/laff/pfhp/index.html (e.g. here https://www.cs.utexas.edu/users/flame/laff/pfhp/week2-blocki...)

- https://gist.github.com/nadavrot/5b35d44e8ba3dd718e595e40184...

might be of interest