Prove that you are a Master of Stereograms
All you need to do is follow the string. Each stage in this interactive stereogram features six platforms – called 'pods' – which are connected by strings. Simply follow the string leading away from the starting pod and click* on the pod it takes you to. The strings will disappear and reappear in a different arrangement, and you can continue from that last pod.
* The 3D mouse pointer will take a bit of getting used to. The middle of the five rings you should see – the one that floats at the same depth as the pods – is the one that counts.
And by the way, 3D riDDle III is designed for parallel viewing.