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[up to this 3D shape]
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― Configuration code: RRmDLmLmLmRD
- Start from
- Position it with the empty square in the North-East position and with
the South-West tile of type backslash
- Close 180 degrees with a valley fold the two eastern adjacent tiles
- Open in 3D by hinging the South-East stack about the South side and
the Central-East stack about the North side into the final shape