[previous configuration]
[up to this 3D shape]
[next configuration]
― Configuration code: RRmDmUmRmDmRUm
- Start from L-3
- turn down 180 degrees the two south tiles on top of the two stacks
and arrange the two superposed tiles originally in the north-most position such
that in the end we have a 2x2 square such that
in the north row we have a stack of 2 tiles (left) and 1 tile (right),
whereas in the south row we have a stack of 4 tiles (left) and 1 tile (right)
- Now open in 3D with the following hinging:
- the two stacked tiles in the north-left position are hinged along the north edge
- the upper two stacked tiles in the south-left position are hinged along the left edge
- the two middle stacked tiles (SL) hinged right
- the two lower stacked tiles (SL) hinged south
- End up with the final shape