Crossteaser

Fascinating in its simplicity, yet complex to solve. Rotate one of the eight colour wheels into the open space. With every movement a new colour appears on both sides of the CrossTeaser. Each colour wheel has six faces, each a different colour. Play CrossTeaser on both sides: move a colour wheel up, over, across or under. Rotate each wheel in turn to achieve your goal: match the colours on all eight colour wheels leaving a space in the center.