I also have made one based on Norvig's: https://gist.github.com/jmikkola/b7c6c644dff1c07891c698f0a527a890 https://gist.github.com/jmikkola/b7c6c644dff1c07891c69

I also have made one based on Norvig's: https://gist.github.com/jmikkola/b7c6c644dff1c07891c698f0a527a890 https://gist.github.com/jmikkola/b7c6c644dff1c07891c698f0a52...