[previous configuration] [up to this 3D shape] [next configuration] ― Configuration code: RRmDvDRvUvRmDm

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• Start from
• Close into a 2x2 square with stacks of three tiles in positions North-East and South-West, a single tile at first floor in position North-West and a single tile at third floor in position South-East of type backslash
• Open in 3D with the following hingings
  • South side for the top two tiles in the North-East stack (giving rise to a flap)
  • East side for the bottom two tiles in the North-East stack
  • South side for the the top two tiles in the South-West stack
  • East side for the bottom two tiles in the South-West stack
• Open in the final shape