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― Configuration code: RmRmRmDvLvDmLvDv
- Start from 
 - Flatten temporarily the back side in order to lower 180 degrees the protruding
pair of tiles
 - Change their hinging side and open in the final shape
 
More directly
- Start from S-2 
 - Open hinging about the top horizontal side and the left vertical side of the
lowest tiles into the final shape