I am using yarn leftovers from my summer bag, but I will need more .. as it turns out the chair is pretty big :DIf you want to make something like this yourself then read further ;) I have made a pretty lame photos of the scheme as it advances ... I hope it will help :)
The only thing I want to comment about this picture tutorial is that when you make the corner you have to make a single crochet into the slip stitch of the previous row... (If you don't get this or any other place in this wordless tutorial please comment and I will try to make decent photos of me actually doing the things in scheme ;) )
p.s. Inspiration from knitted Ten stitch blanket and tunisian crocheted lookalike ...