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

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• Start from
• Position it such that the box is in the North-West tile of the 2x2 square of tiles
• Rotate 180 degrees with a mountain fold the pair of adjacent tiles in the South of the 2x2 square
• The resulting 3D structure admits a hinging and a rotation by opening the two stacked tiles on the East about the East side
• After a 90 degrees rotation we obtain a 3D structure contained in a 1x1x2 box
• Turn 90 degrees a flap tile in the final shape