20th row—knit 1, purl 2, knit 5, cross 2, knit 1, purl 2, knit 6, over, knit 1, over, knit 6, purl 2, knit 1, cross 2, knit 5, purl 2, knit 2 *.
21st row—knit 1, purl 3, knit 7, purl 1, knit 8, over, knit 1, over, knit 8, purl 1, knit 7, purl 3, knit 2 *.
22nd row—knit 1, purl 4, knit 3, cross 2, knit 1, purl 2, knit 6, cross 2, knit 1, purl 2, knit 5, cross 2, knit 1, over, knit 1, cross 2, knit 5, purl 2, knit 1, cross 2, knit 3, purl 4, knit 2 *.
23rd row—knit 1, purl 5, knit 3, purl 3, knit 7, purl 1, over, knit 1, over, purl 1, knit 7, purl 3, knit 5, purl 5, knit 2 *.
24th row—knit 1, purl 4, knit 3, cross 2, knit 1, purl 4, knit 3, cross 2, knit 1, purl 2, over, knit 1, over, purl 2, knit 1, cross 2, knit 3, purl 4, knit 1, cross 2, knit 3, purl 4, knit 2 *.
25th row—knit 1, purl 3, knit 8, purl 5, knit 5, purl 3, over, knit 1, over, purl 3, knit 5, purl 5, knit 5, purl 3, knit 2 *.
26th row—knit 1, purl 2, knit 5, cross 2, knit 1, purl 4, knit 3, cross 2, knit 1, purl 4, over, knit 1, over, purl 4, knit 1, cross 2, knit 3, purl 4, knit 1, cross 2, knit 5, purl 2, knit 2 *.
27th round—knit 1, purl 1, knit 9, purl 3, knit 7, purl 5, over, knit 1, over, purl 5, knit 7, purl 3, knit 9, purl 1, knit 2 *.
Finish the square with several rows of purl and a chain.