Disappearing Four Patch

I was watching a tutorial on the Disappearing Four Patch by Missouri Star Quilt Company this weekend.  http://quiltingtutorials.com/all/disappearing-4-patch-quilt-block-tutorial/  I just had to give it a try.  She used 5" squares, but I decided to use 10" squares. 

Sew four 10" squares into a four patch.

 



Cut 2" on both sides of the horizontal and vertical seams.



 

This is what it looked like after being cut.

Switch the top two squares.  Switch the bottom two squares. Turn the center four patch one turn to the left.

 

 



Sew back together.  Using 10" squares results in an 18 1/2"

 unfinished block.