[up to this 3D shape]
- Start from L-8 of [Nourse]
- Open it into
- Reclose into a 3x2 rectangle placed with the lower two squares corresponding to
two stacks of two tiles with the tiles connected upwards on the bottom of the corersponding stack
- Turn the flap on top of the East stack 180 degrees to the West
- Turn the flap on the bottom of the stack with three tiles 180 degrees to the North
- Open in 3D into the cube shape