Base rnd, each side: Multiple of 2 + 1 + corner sts.
Begin 4 sts to left of corner st.
Rnd 1: Ch 1, sc in same st, *ch 3, skip 1 st, [sc in next st, ch 3, skip 1 st] to corner st, (sc, ch 3, sc) in corner st, ch 3, skip 1 st, sc in next st; rep from * around, ending ch 1, join with hdc to first sc.
Rnd 2: Ch 1, sc in space formed by joining hdc, *ch 3, sc in next ch-space; rep from * around, ending last rep ch 1, join with hdc to first sc.
Rnd 3: Ch 1, sc in space formed by joining hdc, *ch 3, [sc in next ch-space, ch 3] to corner st, sc in same space, ch 3, (sc, ch 3, sc) in next ch-space, rep from * around, ending ch 1, join with hdc to first sc. p
Rnd 4: Rep Rnd 2.
Rnd 5: Ch 1, sc in same space, ch 1, Picot-3, ch 1, *sc in next ch-space, ch 1, Picot-3, ch 1; rep from * around, join with slip st to first sc. Fasten off.
