Now we are going to do basically the same thing we did for block A but with the narrow light fabric and the fat dark fabric. It’s a little different, but is the same process.

Start with four pieces of dark fabric that are 2″ square (that is 2″ x 2″). Like so:

Then sew a strip of light fabric to them like this:

Followed by another light strip like this:

And now add a dark strip:

And now another dark strip, because that’s how we roll:

Then light:

And again:

Then dark:

Dark again:

Light:

Light again:

Keep going like this (I took these upside down and have rotated them in the spirit of continuity. Sorry about the weird numbers):

Voila!