6 sts x 16 rows KRB ELONGATED Long Tile Stitch (I-B-3-(4))

Here’s a lovely example of the Elongated Knit-in-the-Row-Below method, proving the importance of even tension to produce a flat fabric, although a Cluster version (pulling up the PUK) could make a wonderfully warm and compact version.  The Reverse Stockinette side is also attractive, with it’s crossed horizontals and verticals