So sorry to keep everyone waiting. What with sickness and orders I have been running on a limited battery. Here is block number 10.
With black yarn pick up 50sts along the top of blocks 9 and 5.
Knit 4 rows if you are picking up L - R and 5 rows if you are picking up R - L
Change colour
Row 1+3 - knit
Row 2+4 - purl
Row 5 +7- purl
Row 6+8 - knit
Repeat rows 1 - 8 five times in all
cut off yarn and knit 4 rows black
Cast off.