Unless a update changed it, the solution is that.. there is no combination. Just hit 2 switches and go back. Dont hit 3 though because you'll die
Exactly. Any two switches will work, a third will flood the room with gas and lead to a death. Just hit two then go back and Kotone will intercept you.
Oh mb, I remember in previous versions that you had to switch the two levers and it would tell you that smt opened.
