The disappearing 9-patch

I’ve been watching Kathryn Chambers or k3n clothtales on U-tube since January.  I haven’t been able to complete many of her projects this year but I have done a few.  This is my most recent!   Now, there are many ways I could have reassembled my quarter squares.  I liked this one the best because I’m not making a quilt, just one quilt block.  What a concept, the disappearing 9-patch!!