wavy rectangles-best guess

Inspired by this discussion on Ravelry: https://www.ravelry.com/discuss/techniques/4057141/

Shown with a cast-on count of 42 stitches.   Getting chart...

  • Row 1 (RS): *Yo, k1, yo, k1, ssk, k6, yo, ssk, k2tog, k7, repeat from *.
  • Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, and 28: Purl.
  • Row 3: *Yo, k1, yo, k3, ssk, k6, k2tog, k7, repeat from *.
  • Row 5: *K1, yo, k5, ssk, k4, k2tog, k7, yo, repeat from *.
  • Row 7: *K7, ssk, k2, k2tog, k7, yo, k1, yo, repeat from *.
  • Row 9: *K7, sl1-k2tog-psso, ssk, yo, k6, yo, k3, yo, repeat from *.
  • Row 11: *K7, sl1-k2tog-psso, ssk, yo, k4, yo, k5, yo, repeat from *.
  • Row 13: *K7, sl1-k2tog-psso, ssk, yo, k2, yo, k7, yo, repeat from *.
  • Row 15: *K7, ssk, k2tog, yo, k6, k2tog, k1, yo, k1, yo, repeat from *.
  • Row 17: *K7, ssk, k6, k2tog, k2, [k1, yo] twice, repeat from *.
  • Row 19: *Yo, k2, k5, ssk, k4, k2tog, k3, k2, yo, k1, repeat from *.
  • Row 21: *Yo, k1, yo, k2, k5, ssk, k2, k2tog, k4, k3, repeat from *.
  • Row 23: *Yo, k3, yo, k2, k4, yo, k2tog, k3tog, k5, k2, repeat from *.
  • Row 25: *Yo, k5, yo, k2, k2, yo, k2tog, k3tog, k6, k1, repeat from *.
  • Row 27: *Yo, k7, yo, k2, yo, k2tog, k3tog, k7, repeat from *.