Now you simply turn each block one half turn to create the quilt. It is sort of an optical illusion, because the viewer does not see that the blocks are actually square.
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You're kidding? No, now I can see it but was afraid to touch it because of the "curves". Now I can see where the optical illusion comes in. Thank you for telling us about it, now I won't be afraid to touch it. It's a very pretty quilt and quite stunning.