This is a free crochet pattern for an easy 2-row granny square that can be used for patchwork quilt picture afghans (smaller granny squares can make more detailed pictures), like the above blanket with sailboats and fish (in this Leisure Arts leaflet: Perfect Patches -- 5 Afghans to Crochet (Leisure Arts #3888)) or the above quilt-like afghan with flowers (in this Leisure Arts leaflet: Patchwork Afghans Thru the Year, Book 2 (Leisure Arts #3223)"). See also my blog post listing lots of books and leaflets with picture afghan patterns.

Solid Color Granny Square Pattern

Row 1: ch 4, join with sl st (loop formed); sc in loop then ch 2 (this is first dc), 2 dc in loop, ch 2, (3 dc into loop, ch 2) three times, join in top of first dc. Turn.

Row 2: sl st in ch 2 space; sc in same ch 2 space then ch 2 (this is first dc), 2 dc in same space, ch 2, 3 dc in same space, ch 1, (in next space: 3 dc, ch 2, 3 dc, ch 1) three times, join in top of first dc. Finish off - leave tail of about 8 inches to use to sew together granny squares to create the desired pattern.

Two-color Granny Square Pattern

Colors A and B.

Row 1: With Color A, ch 4, join with sl st (loop formed); sc in loop then ch 2 (this is first dc), 2 dc in loop, ch 2, 3 dc into loop changing to Color B at end of last dc, ch 2, (3 dc, ch 2) twice, join in top of first dc. Turn.

Row 2: Continuing with Color B, sl st into ch 2 space; sc into into same ch 2 space then ch 2 (this is first dc), 2 dc into space, ch 2, 3 dc, ch 1, (in next space: 3 dc, ch 2, 3 dc changing to Color A at end of last dc), ch 2, (into next space: 3 dc, ch 2, 3 dc, ch 1) twice, join in top of first dc. Finish off - leave tail of about 8 inches to use to sew together granny squares to create the desired pattern.