The Piano puzzle is a puzzle that is present in Ao Oni versions Version 3 , Version 5 , and Version 6 . As the name implies, the player has to use the numbers written on the piano keys to solve a open a locked safe behind the bookshelf.        

                                                                                                 

Contents 1 Variations 1.1 Version 3.0 1.2 Version 5.2 1.3 Version 6.23 2 The Solution 3 Comments

VariationsEdit

Version 3.0Edit

The numbers are 459 and the safe is located in the room behind the kitchen.

Version 5.2Edit

The numbers are random.

Version 6.23Edit

The numbers are randomized every game and the safe is located behind a bookshelf in the piano room.

The SolutionEdit

After the player discovers the number combination written on the piano, they use the keys on the panel to decipher the code. The player has to match the numbers on the keys of the piano to the shapes of the keys on the panel.

The orientation of the first and last keys are noteworthy because they are the only two keys that are upside down, so the numbers that correspond to the panels must also be flipped. Once the combination is known, the player can input it to solve the puzzle.