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

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• Start from
• Turn the flap tile 90 degrees against another tile (inside the hole)
• Change the hinging side of the newly formed stack
• Deform in 3D into a cube with a protruding stack of two tiles
• Open the tiles of the stack by changing the hinging side into the final shape