The 9-patch is not on point.
I also assume it's a 3" finished block alternated with a 3" finished (cut 3 1/2) white square.

The 9-patch in the border isn't on point?

Your Omigosh is gorgeous! I love the bright colors you've chosen and your piecing is perfect. Please share finished pics!

Man that is an awesome quilt I just love it I have made a many of a nine patch but none looking like that well done.Keep them coming.!!!!!!!!!!!!!!!!!!

All the quilts are great and they look like Irish chains to me.

Cookie64

To calculate the size of the setting triangles for the border you can go to this website http://www.ctpubblog.com/2010/08/03/...ing-triangles/
They give a fairly simple explanation.
For those who wonder why they are using 1.414, it's because that is the approximate square root of 2. The length of the diagonal of a square is the length of one of its sides multiplied by the square root of two. This is all based on the Pythagorean Theorem.

Its looks like a 9 patch with the plain color being like an x on the block and then a plain white block. The borders look like its a triangle then the 9 patch and another triangle, its put together with a 45 Degree angle I made a border with the same type of slant one time.

I would say the interior of the quilt is a 9 patch and then a solid block, alternating. The border definately looks like the 9 patch on point --you can see the seam lines go across and form a "square" block.

Quilt pattern
 

It's a single Irish Chain in the center section, they are not on point in the center. A single Irish Chain is a nine patch block and a plain block, alternated. this one is scrappy...and I really like the on point blocks in the border.
The attached picture shows a scrappy Irish Chain.
This is one of my favorite patterns, simple to make, and can be very striking.

I love the "Oh my gosh" quilt. Is that the name of a pattern? I would like to make that.