A sample made for World of Illusion Knitting web site tutorials.

When you look directly at the square you see four small striped squares. When you look from an angle you will see windmills of pink and purple.

The pink triangles form one windmill, the purple triangles form another. Because of the orientation of the squares it isn’t possible to see a ‘solid’ windmill at one time. Two triangles of each colour are always ‘solid’. The others show the colour to varying degrees, depending on the angle. As you move round the windmill parts appear more clearly, then disappear again, in rotation.

Each of the four small squares is worked individually, joining them together as you go so you are only working with 23 stitches at a time.

I used about 40 metres (45 yards) DK in each of the two colours. It is approximately 22 cm (9”) square. You could add a border to neaten the edges and make it lie flatter.