Coloured segments with coloured edges need to be moved so that all the segments for each colour are on their correct ring and all the edges of the segments match up.

Over the course of play the number of rings increases. At higher levels the segments fuse together.

You can see the solution at any time by pressing the Solution button.

You can reset the level to its initial condition if you make a mistake once segments are fused (with a corresponding score penalty) by pressing the Reset button.

You can zoom in on the centre of the wheel which is useful on small devices.