v 2.0 was just as good as the original, and couldn't have been more timely!  (I did something wrong...somewhere along the way, but it wasn't too hard to correct the error at the end.)  I do think I ended up with an extra E in #9 somehow?

Thank you! Good catch with that E, I'm removing it now. [edit: Removed, for v2.0.4] I'm happy to hear that the last puzzle (presumably) allowed for easy error-correction.