Windowpane Stitch (multiple of 8 plus 2 stitches):
Row 1 (RS): *Purl 1, knit 1; repeat to end.
Row 2 and all WS rows: Purl.
Rows 3, 7, 11 (RS): Knit.
Rows 5, 9 (RS): Purl 1, *knit 7, purl 1; repeat from * to final stitch, k 1.
Repeat Rows 1-12 for pattern.