Originally Posted by QuiltE

Pardon me, but I am confused
You mention nine patches, which aren't part of the quilt/photo you have shown us.
Not saying it cannot be achieved with 9Ps, but it would sure be a challenge.
Also, you mentioned two different colours, yet I see several in the quilt.

Or perhaps? is the right photo posted?

As Jordan already suggested ... graph paper could be your friend to figure this out!