[VitoVan]

For the first time of my life, I managed to see it, thanks to this tutorial:

https://hidden3d.com/howto-view-stereograms/

[stavros]

As an aside, I really like the stereogram on that page. The background seems designed for the purpose, so the edges on the 3D object are actually outlined, rather than the general kind of stereogram where you just get the texture randomly applied to the object.

[plaguna]

Ah, yes, a sailboat.