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― Configuration code: RUmRUvRmUvUmLv
- Start from U-3
- Lift vertically the two top tiles of the two West stacks
- Lower vertically the two lower tiles of the two South stacks
- Lower the flap corresponding to the lower tile of the
North-East stack
- The last move frees a flap to be rotated 90 degrees about its
new hinge