PATTERN

empty cell — knit stitch → Knit stitch (k)

black cell — purl stitch → Purl stitch (p)

O — yarn over → Yarn over (yo)

/ (slant right) — knit 2 together → k2tog (knit 2 together)

\ (slant left) — slip 2 stitches with a left slant → ssk (slip, slip, knit)

T (triangle up) — knit 3 together → k3tog (knit 3 together)

diagonal dash to the left with knit stitch — slip 1 st, knit 1, pass over slipped → skp (slip 1, knit 1, pass over)

double decrease — slip 2 sts, knit 1, pass over slipped → double decrease (sl2-k1-p2sso)