A photo of a scarf knit using the square lace stitch on the ends.
Knit flat
Cast on a multiple of 3 stitches
1st row: K1, ssk, *(yo) twice, sl2tog, k1, psso; rep from * to last 3 sts, (yo) twice, k2tog, k1
2nd row: K3, p1 *K2, p1; rep from * until 2sts remain, k2
3rd and 4th rows: Knit
Knit in the round
Cast on a multiple of 3 stitches
1st round: *(Yo) twice, sl2tog, k1, psso; rep from * to the end of the round.
2nd round: *P1, k2; repeat from * to the end of the round
This stitch was originally invented this lace stitch for the Scarf Squared scarf and matching skull cap pattern