im.g.1.18.2.Quilt 4-square Blocks
Instructions
This is a continuation of part 1.  Same rules apply.  This time, the task is to do:
1.  Upper left:  a 4-block pattern that has 4 lines of symmetry:  along both diagonals and vertically and horizontally.
2.  Upper right:  a 4-block pattern that has NO SYMMETRY (neither rotational or reflection symmetry).
3.  Lower left:  a 4-block pattern that has ONLY 180, 360 degree rotational symmetry (2 possible answers).
4.  Lower right:  a 4-block pattern that has 90, 180, 270 and 360 degree rotational symmetry (2 possible answers).