In Pursuit of an Illusion is based on Curve of Pursuit, which is our most popular afghan design. When looking at Curve of Pursuit, some people see it as concentric squares; others see four curved sections. In Pursuit of an Illusion shows both of these effects at the same time, just by changing the angle at which you look at the afghan.
The pattern contains two different versions; one where you see the squares as the foreground; the other with the swirls as the foreground. Either version needs a minimum of four colours (two for the background and two for the foreground) but you can use many more, if you wish.
Three examples of finished afghans are shown below. They are very small but the pattern includes instructions for making the afghan to any size you want.
Version 2 and Version 1 using the same four colours.
Version 1 with one of the colours changed
Two more colours added, version changed and placement of colours changed
Same version, with original placement of multiple colours.
The differences are sometimes difficult to notice until the afghan gets bigger.
The choice, and placement, of the colours, can dramatically change the effects created. All the examples shown have the same two shades of grey as the foreground colour.