My throw is square, but the pattern is written for another 40cms in case you want to make yours longer.

The technique is Interlocking crochet, and the pattern comes with instructions on the technique, as well as photo tutorials on how to get started and how to make the colour changes. Also, I include links to my YouTube tutorials and to a free pattern to follow those tutorials if you want to practice.

All colours used with amounts and notes on how much you need are detailed, as well as instructions on how to make the blanket square (1,20 long) or full length (1,60 long). I also added information in case you want to make each tile in a different colour, and how to calculate your yarn needs.