For ROK or Demelza, does anyone know if it is required to use slide
left or slide right to complete them?

I know that in cellar1, there is a bonus area that you need to
complete a shortest path puzzle to get to. But I think on that one,
it is forgiving enough to allow you to rotate left and right. But
then there's one room later on where you probably do need slide
left/right, but I'm not sure.

The reason I ask is that the smartphone version currently doesn't
support slide left/right, and that may be a problem :)

Jason