- Start from RRmRmRUmLmLmDm
- For definitenes we suppose that the front tile of the basket is a
backslash tile, connected to its adjacent tiles through its
right side and bottom side
- Close carefully the configuration into a 3x1 rectangle. This entails a
bit of stretching on the strings, with the former front tile of the basket
becoming a flap
- The rectangle can be opened into a flat configuration. This is one of
those considered here as "planar face-up configurations" and covers
an area of six squares (two of them are a stack of two non-adjacent tiles)
that we can imagine contained in a 3x3 square with three horizontal
rows (south, center, north) and three vertical columns (west, center, east)
- Position it with the protruting flap tile in the south-west corner
of the 3x3 square and connected through its east side
- lower the two northern tiles with a 180 degrees valley fold
- Turn right a single tile on top of the stack of three tiles in the
central position of the 3x3 square with a 180 degrees valley fold
- Turn down the two top tiles of the stacks in the central row of the
3x3 square with a 180 degrees valley fold
- The resulting configuration is flat and covers an area of five squares
- By appropriately hinging the top tiles of the two stacks both about their
north side and opening in 3D we obtain the final shape