Crosshatch in crochet cotton.

Crosshatch I
Multiple of 7 sts+4
(add 3 for base chain)

1st Row: Skip 2 ch (count as 1 dc), 2 dc into next ch, *skip 3 ch, 1 sc into next ch, 3 ch, 1 dc into each of next 3 ch; rep from * to last 4 ch, skip 3 ch, 1 sc into last ch, turn.
2nd Row: 3 ch (count as 1 dc), 2 dc into first sc, * skip 3 dc, 1 sc into first of 3 ch, 3 ch, 1 dc into each of next 2 ch, 1 dc into next sc; rep from * ending skip 2 dc, 1 sc into top of tch, turn.
Rep 2nd row.