Intarisa crochet is where you use at least 2 colours of wool/yarn to make a design or picture in your crocheting, it sometimes is also called tapestry crochet.
To find the cords you will need to do a bit of crocheting.
I recommend a 4.00 mm hook and some double knitting yarn. You will need two different colours of wool/yarn
Crochet terminology is UK crochet terminology
DC – double crochet
Pattern
In yarn A Chain 79
Row 1 dc in 2nd chain from hook and then into every stitch to end (78 stitches).
Row 2 - Chain 1, dc in next stitch and every stitch to end (78 stitches).
Row 3 – 6 repeat row 2.
Row 7 – In yarn A chain 1, dc in next 9 stitches, in yarn B dc in next 2 stitches, in yarn A dc in next 2 stitches, in yarn B dc in next 2 stitches, in yarn A dc in next 5 stitches, in yarn B dc in next stitch, in yarn A dc in next 8 stitches, in yarn B dc in next 4 stitches, in yarn A dc in next 2 stitches, in yarn B dc in next 5 stitches, in yarn A dc in next 4 stitches, in yarn B dc in next 4 stitches, in yarn A dc in next 3 stitches, in yarn B dc in next 4 stitches, in yarn A dc in next 3 stitches, in yarn B dc in next 4 stitches, in yarn A dc in next 4 stitches, in yarn B dc in next stitch, in yarn A dc in next 3 stitches, in yarn B dc in next stitch, in yarn A dc in next 6 stitches.
Row 8 – In A chain 1, dc in next 4 stitches, in B dc in next 2 stitches, in A dc in next 3 stitches, in B dc in next 2 stitches, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 4 stitches, in B dc in next stitch, in A dc in next stitch, in B dc in next stitch, in A dc in next 4 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 4 stitches, in B dc in next stitch, in A dc in next 9 stitches, in B dc in next stitch, in A dc in next 8 stitches, in B dc in next stitch, in A dc in next 5 stitches, in B dc in next 2 stitches, in A dc in next 2 stitches, in B dc in next 2 stitches, in A dc in next 10 stitches.
Row 9 – In A chain 1, dc in next 9 stitches, in B dc in next 2 stitches, in A dc in next 2 stitches, in B dc in next 2 stitches, in A dc in next 4 stitches, in B dc in next stitch, in A dc in next 9 stitches, in B dc in next stitch, in A dc in next 8 stitches, in B dc in next stitch, in A dc in next 5 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 4 stitches, in B dc in next stitch, in A dc in next stitch, in B dc in next stitch, in A dc in next 4 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next stitch, in B dc in next stitch, in A dc in next stitch, in B dc in next stitch. In A dc in next stitch, in B dc in next stitch, in A dc in next 5 stitches.
Row 10 – In A chain 1, dc in next 4 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 4 stitches, in B dc in next stitch, in A dc in next stitch, in B dc in next stitch, in A dc in next 4 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next 4 stitches, in A dc in next 6 stitches, in B dc in next 2 stitches, in A dc in next 3 stitches, in B dc in next 4 stitches, in A dc in next 3 stitches, in B dc in next stitch, in A dc in next 5 stitches, in B dc in next stitch, in A dc in next 4 stitches, in B dc in next 2 stitches, in A dc in next 2 stitches, in B dc in next 2 stitches, in A dc in next 10 stitches.
Row 11 – In A chain 1 dc in next 9 stitches, in B dc in next 2 stitches, in A dc in next 2 stitches, in B dc in next 2 stitches, in A dc in next 3 stitches, in B dc in next stitch, in A dc in next 6 stitches, in B dc in next stitch, in A dc in next 6 stitches, in B dc in next stitch, in A dc in next 3 stitches, in B dc in next stitch, in A dc in next 10 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 4 stitches, in B dc in next stitch, in A dc in next stitch, in B dc in next stitch, in A dc in next 4 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 5 stitches, in B dc in next stitch, in A dc in next 5 stitches.
Row 12 – In A chain 1 dc in next 3 stitches, in B dc in next stitch, in A dc in next 7 stitches, in B dc in next stitch, in A dc in next stitch, in B dc in next 2 stitches, in A dc in next 2 stitches, in B dc in next 2 stitches, in A dc in next stitch, in B dc in next 2 stitches, in A dc in next 2 stitches, in B dc in next 2 stitches, in A dc in next 2 stitches, in B dc in next 2 stitches, in A dc in next 9 stitches, in B dc in next stitch, in A dc in next 3 stitches, in B dc in next stitch, in A dc in next 14 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next 2 stitches, in A dc in next 2 stitches, in B dc in next 2 stitches, in A dc in next 10 stitches.
Row 13 – In A chain 1 dc in next 9 stitches, in B dc in next 2 stitches, in A dc in next 2 stitches, in B dc in next 2 stitches, in A dc in next 2 stitches, in B dc in next 5 stitches, in A dc in next 7 stitches, in B dc in next 4 stitches, in A dc in next 3 stitches, in B dc in next 4 stitches, in A dc in next 6 stitches, in B dc in next stitch, in A dc in 4 stitches, in B dc in next 4 stitches, in A dc in next 3 stitches, in B dc in next 4 stitches, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 7 stitches, in B dc in next stitch, in A dc in next 4 stitches.
Rows 14 – 21 – repeat row 2 in A.
Row 22 – In A chain 1, dc in next 25 stitches, in B dc in next stitch, in A dc in next 18 stitches, in B dc in next stitch, in A dc in next 32 stitches.
Row 23 – In A chain 1, dc in next 3 stitches, in B dc in next 5 stitches, in A dc in next 2 stitches, in B dc in next 5 stitches, in A dc in next 2 stitches, in B dc in next 5 stitches, in A dc in next 7 stitches, in B dc in next 6 stitches, in A dc in next 2 stitches, in B dc in next 5 stitches, in A dc in next 6 stitches, in B dc in next 6 stitches, in A dc in next 2 stitches, in B dc in next 4 stitches, in A dc in next 5 stitches, in B dc in next stitch, in A dc in next 3 stitches, in B dc in next 2 stitches, in A dc in next 6 stitches.
Row 24 – In A chain 1, dc in next 5 stitches, in B dc in next 2 stitches, in A dc in next 3 stitches, in B dc in next stitch, in A dc in next 8 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 8 stitches, in B dc next stitch, in A dc in next 6 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 9 stitches, in B dc in next stitch, in A dc in next 3 stitches, in B dc in next stitch, in A dc in next 6 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 8 stitches.
Row 25 – In A chain 1, dc in next 6 stitches, in B dc in next stitch, in A dc in next 3 stitches, in B dc in next stitch, in A dc in next 6 stitches, in B dc in next stitch, in A dc in next 3 stitches, in B dc in next stitch, in A dc in 3 stitches, in B dc in next stitch, in A dc in next 8 stitches, in B dc in next stitch, in A dc in next 5 stitches, in B dc in next stitch, in A dc in next 12 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 8 stitches, in B dc in next 2 stitches, in A dc in next 3 stitches, in B dc in next stitch, in A dc in next 6 stitches.
Row 26 – In A chain 1, dc in next 5 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next stitch, in B dc in next stitch, in A dc in next 6 stitches, in B dc in next 3 stitches, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next 13 stitches, in B dc in next 2 stitches, in A dc in next 3 stitches, in B dc in next stitch, in A dc in next 8 stitches, in B dc in next stitch, in A dc in next 4 stitches, in B dc in next 3 stitches, in A dc in next 4 stitches, in B dc in next 3 stitches, in A dc in next 5 stitches in B dc in next 2 stitches, in A dc in next 5 stitches.
Row 27 – In A chain 1, dc in next 4 stitches, in B dc next stitch, in A dc next 5 stitches, in B dc in next stitch, in A dc in next 6 stitches, in B dc in next stitch, in A dc in next 3 stitches, in B dc in next stitch, in A dc in next 12 stitches, in B dc in next stitch, in A dc in next 3 stitches, in B dc in next stitch, in A dc in next 14 stitches, in B dc in next stitch, in A dc in next 4 stitches, in B dc in next 2 stitches, in A dc in next 5 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next stitch, in A dc in next stitch, in B dc in next stitch, in A dc in next 6 stitches.
Row 28 – In A chain 1, dc in next 5 stitches, in B dc in next 2 stitches, in A dc in next 2 stitches, in B dc in next 2 stitches, in A dc in next 5 stitches, in B dc in next 2 stitches, in A dc in next 4 stitches, in B dc in next stitch, in A dc in next 14 stitches, in B dc in next stitch, in A dc in next 3 stitches, in B dc in next stitch, in A dc in next 12 stitches, in B dc in next stitch, in A dc in next 3 stitches, in B dc in next stitch, in A dc in next 6 stitches, in B dc in next stitch, in A dc in next 5 stitches, in B dc in next stitch, in A dc in next 5 stitches.
Row 29 – In A chain 1 dc in next 4 stitches, in B dc in next 4 stitches, in A dc in next 2 stitches, in B dc in next 5 stitches, in A dc in next 2 stitches, in B dc in next 5 stitches, in A dc in 12 stitches, in B dc in next stitch, in A dc in next 3 stitches, in B dc in next 4 stitches, in A dc in next 11 stitches, in B dc in next stitch, in A dc in next 2 stitches, in B dc in next 4 stitches, in A dc in next 5 stitches, in B dc in next 2 stitches, in A dc in next 2 stitches, in B dc in next 2 stitches, in A dc in next 6 stitches.
Rows 30 – 34 repeat row 2 in A.
Finish off.
Hint is given in Geochecker. 