once, ch-1, sl st top beg ch-3, do not turn.
RND 3: Ch-3, dc same st as beg ch-3, dc next 2 sts, 2 dc next st, [drop white, pick up royal, ch-2, 2 dc next st, dc next 2 sts, 2 dc next st, drop royal, pick up white,] (ch-2, 2 dc next st, dc next 2 sts, 2 dc next st) twice, rep bet [], rep bet () once, ch-2, sl st top beg ch-3, do not turn.
RND 4: Ch-3, dc same st as beg ch-3, dc next 4 sts, 2 dc next st, [drop white, pick up royal, ch-3, 2 dc next st, dc next 4 sts, 2 dc next st,] (ch-3, 2 dc next st, dc next 4 sts, 2 dc next st) twice, rep bet [], rep bet () once, ch-3, sl st top beg ch-3, do not turn.
RND 5: Ch-3, dc same st as beg ch-3, dc next 6 sts, 2 dc next st, [drop white, pick up royal, ch-4, 2 dc next st, dc next 6 sts, 2 dc next st, drop royal, pick up white,] (ch-4, 2 dc next st, dc next 6 sts, 2 dc next st) twice, rep bet [], rep bet () once, ch-4, sl st top beg ch-3, fasten off.
Make 32 blocks
ONE COLOR HALF BLOCK:
With royal and J hook ch-5, sl st to form a ring.
ROW 1: Ch-3, 5 dc in ring, turn.