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― Configuration code: RRmRmRURmRmU
Hinge equivalent to
Alternative construction (more involved):
- Start from I-2 .
- Fold the two stacked lower tiles in between the two (stacked) tiles above, obtaining a 3x1 rectangle
with a stack of four tiles in the lowest position.
- Turn left 180 degrees the top layer of three tiles.
- Open into , hinge equivalent to the requested shape.