whitepine, thank you for the info.....I should know better than to look at pictures posted here on my phone! I didn't realize your chain was composed of squares...mine is 1/4 and 1/2 triangles, and I couldn't figure out how to make it work looking like your pretty border! I redid the corners, and the chain is not perfect, but it looks better than it did, and I am moving on!
I am working on a border of "economy blocks", or sq. in a sq. in a sq. Took me awhile to figure out the cutting dimensions......made several test squares out of scraps, and I think I finally have it! lol. Math is my nemesis. Its raining here this afternoon, so I hope to make some progress!