Slip Stitch Knitting 10: Zig Zag

PATTERN
Cast on a multiple of 5 sts, +2.
Row 1 (RS): Color A, K5, *sl1 wyib, k4, repeat from * to last 2 sts, sl1 wyib, k1.
Row 2: Color A, K1, *sl1 wyif, k4, repeat from * to last st, k1.
Row 3: Color B, K4, *sl1 wyib, k4, repeat from * to last 3 sts, sl1 wyib, k2.
Row 4: Color B, K2, *sl1 wyif, k4, repeat from *.
Row 5: Color A, K3, *sl1 wyib, k4, repeat from * to last 4 sts, sl1 wyib, k3.
Row 6: Color A, K3, *sl1 wyif, k4, repeat from * to last 4 sts, sl1 wyif, k3.
Row 7: Color B, K2, *sl1 wyib, k4, repeat from *.
Row 8: Color B, K4, *sl1 wyif, k4, repeat from * to last 3 sts, sl1 wyif, k2.
Row 9: Color A, K1, *sl1 wyib, k4, repeat from * to last st, k1.
Row 10: Color A, K5, *sl1 wyif, k4, repeat from * to last 2 sts, sl1 wyif, k1.
Row 11: Color B, K5, *sl1 wyib, k4, repeat from * to last 2 sts, sl1 wyib, k1.
Row 12: Color B, K1, *sl1 wyif, k4, repeat from * to last st, k1.
Row 13: Color A, K4, *sl1 wyib, k4, repeat from * to last 3 sts, sl1 wyib, k2.
Row 14: Color A, K2, *sl1 wyif, k4, repeat from *.
Row 15: Color B, K3, *sl1 wyib, k4, repeat from * to last 4 sts, sl1 wyib, k3.
Row 16: Color B, K3, *sl1 wyif, k4, repeat from * to last 4 sts, sl1 wyif, k3.
Row 17: Color A, K2, *sl1 wyib, k4, repeat from *.
Row 18: Color A, K4, *sl1 wyif, k4, repeat from * to last 3 sts, sl1 wyif, k2.
Row 19: Color B, K1, *sl1 wyib, k4, repeat from * to last st, k1.
Row 20: Color B, K5, *sl1 wyif, k4, repeat from * to last 2 sts, sl1 wyif, k1.
Repeat rows 1-20.