You are welcome, glad you learn something through it ;-)

I wasn’t familiar with DFS algorithms, until now :) I'm fairly algo ignorant still, but a little less so because of you. Thanks for taking the time to put the logic into words so well.

You were right about documentation so here is a fork of this solution, explaining it step-by-step.

Some actual variable names or comments would help people understand what's happening here and why.

but that's already been done. I coded the exact same thing some weeks ago (another beta, that got retired, I guess)

No, reverse.

In Python, function name should be in snake_case.

duplicate: https://www.codewars.com/kata/5574835e3e404a0bed00001b