... at the usual place  :)

Fixed the issue with the need to pull the lever in 15500 as remarked by nancygevans, a shortcut to get down to the end if one has gone back somewhere [for instance, to pull a lever...], and I also fixed a Sudoku ambiguity noted by Toybox [it now has a unique solution :)] and made a few minor design changes which nobody will notice :)

I never did solve the Sudoku puzzle, but I did figure out how to make it through with the hint you gave on BBB about keeping track of the treasures. I'm soooo glad you gave an alternate way, the puzzle was driving me insane.
:o

yeah I figured not all players are fans of sudoku puzzles, so there had to be an alternative way to keep those players in the game :)

otherwise there are sudoku solvers online, and now they also give a unique solution to this one :)

As I said about a week ago, I have recently re-played Octopus Hard (just before the update came out), but I can't remember having seen a Sudoku anywhere in this mansion !!?!

I can't even imagine how one can include a Sudoku within a MM-mansion ??   :-/

If you missed it you can't have played the mansion to the end.