Edge sts required (suggest p1 / sl1 wyif). In Row 8, p3tog may be worked as: sl1 wyif-p2tog-psso for a flatter result.
Shown with a cast-on count of 10 stitches.
1 2 3 4 5 Horizontal repeats
1 2 3 4 5 Vertical repeats
Swatch photo uploaded by Emex