Neat, didn't know that existed! Definitely would have saved me some time :)

FWIW, I wrote a similar solution a couple of days ago as well, and come up with the same result (3.421166 guesses on average, with starting word SALET). So that would support that result.

With the following strategy: https://drive.google.com/file/d/1WvxRRzbvDVnHZUczHBZAko3hKft..., code: https://drive.google.com/drive/folders/1Y8k685PS0wxvYulIxsPg...