Free Land

I can see the win, but how can I get to it?

@Mohamad Arif Irwan Am I missing something? I need more hints to win...

@Mohamad Arif Irwan Thanks for the hints (and I know what to do now) but I will give up. Reasons:
* It is hard to open the gate (even I know the position of the draggable)
* It is very hard for B to redirect Z (sometimes Z would zap B accidentally due to his movements in my gameplay)

@Mohamad Arif Irwan I can see the way to win, but I don't think there is a way to prevent Z from zapping B...

@Mohamad Arif Irwan Nice images, but I will still pass.