GAUGE: Working in pattern, 1 repeat = 3½"; 10 rows = 4¼". CHECK YOUR GAUGE. Use any size hook to obtain the gauge.
Note: To work a color change, work last stitch of current color until the final yo, drop current color and complete final yo with next color.
Shell = Work 5 dc in stitch indicated.
Work in the following color sequence throughout: 4 rows A, *4 rows B, 4 rows A, 4 rows C and 4 rows A, repeat from *5 times more.
With A, ch 171.
Row 1 (Wrong side): Sc in 2nd ch from hook and in each ch across: 170 sc.
Row 2 (Right side): Ch 3 (counts as dc), turn; 4 dc in first sc, (skip next sc, dc in next sc) 7 times, skip next sc, *(work Shell in next sc) twice, (skip next sc, dc in next sc) 7 times, skip next sc; repeat from * to last sc, work Shell in last sc, changing color in last dc: 170 sts.
Row 3: With B, ch 1, turn; sc in each st across: 170 sc.
Row 4: Repeat row 2.
Repeat Rows 3 and 4 for pattern maintaining established Color Sequence.
Round 1 (Right side): Ch 1, do not turn; sc evenly around, working 3 sc in each corner; join with slip st to first sc.
Round 2: Ch 3, do not turn; work dc in each sc along Blanket length to corner sc, join with slip st to corner sc; fasten off. With right side facing, join A with slip st to next corner sc, work dc in each sc along Blanket length to next corner sc, join with slip st to corner sc; fasten off.
ABBREVIATIONS: A, B, C = Color A, B, C; ch = chain; dc = double crochet; = sc = single crochet; st(s) = stitch(es); yo = yarn over; ( ) = work directions in parentheses the number of times specified; * = repeat whatever follows the * as indicated.