UK / US crochet term:

Chain stitch – ch

Double crochet / Single crochet – dc/sc

Treble / Double crochet – tr / dc

1 dc/sc decrease – 1dec

1 stitch decrease – 1Stdec

Stitch – st

Foundation Chain: Multiples of 41 + 3

Row 1: Skip 1ch, * [ 1dc/sc in next ch, skip 3ch, 9tr/dc in next ch, skip 3ch] – work 2 times, 1dc/sc in next ch, skip 3ch, 9tr/dc in next ch, 1 ch, 9tr/dc in next ch, skip 3ch, [ 1dc/sc in next ch, skip 3ch, 9tr/dc in next ch, skip 3ch] – work 2 times; rep from *, make 1dc/sc in last ch and turn.

Row 2: Make 4ch, skip 4tr/dc below, work 1dc/sc in each of next 2tr/dc, * [ 1ch, 1tr/dc + 1ch + 1tr/dc in dc/sc below, 1ch, skip 3tr/dc below, 1dc/sc in each of next 3tr/dc] - work 2 times, 1ch, work 1tr/dc + 1ch + 1tr/dc + 1ch + 1tr/dc in space of 1ch below, 1ch, [ skip 3tr/dc below, 1dc/sc in each of next 3tr/dc, 1ch, 1tr/dc + 1ch + 1tr/dc in dc/sc below, 1ch] - work 2 times, skip 3tr/dc below, 1dc/sc in next st, work 1dec:

insert hook into next st, yarn over and draw through stitch, skip 4tr/dc of next shell, insert hook into next st, yarn over and draw through stitch, yarn over and draw through all loops on hook.

Make 1dc/sc in next st; rep from *.

Work 1Stdec instead 1dec + 1dc/sc at end of row:

insert hook into next st, yarn over and draw through stitch, yarn over, insert hook into first dc/sc of row below, yarn over and draw through 2 loops on hook, yarn over and draw through all loops on hook. Turn.

Row 3: Make 1ch and 1dc/sc in first st, * [ make 9tr/dc in space of 1ch (between 2tr/dc), skip 1dc/sc, 1dc/sc in next] - work 2 times, 9tr/dc in space of 1ch, 1ch, 9tr/dc in next space of 1ch, [ skip 1dc/sc, 1dc/sc in next, 9tr/dc in space of 1ch] - work 2 times, skip 1dc/sc and make 1dc/sc in next st; rep from *, turn.

Repeat rows 2 – 3 until you have reached your desired length.

Colors & Rows: 1 – grey; 2 & 3 – dark blue; 4 & 5 – grey; 6 & 7 – dark blue; 8, 9, 10, 11, 12 & 13 – white; 14 & 15 – grey; 16 & 17 – light blue; 18 & 19 – pink; 20 & 21 – dark blue; 22 & 23 – white.