I've wanted a way to quantify how good someone was at seeing magic eye images for a while. I've always thought I was pretty good at them, but never had a way to compare with other people. Now I have one: there is magic eye 3d tetris. The higher your top score, the better you are at seeing it. I got 2940. Of course there's some confounding effect from tetris ability, but it's still neat to have a metric.

The grid is only 5 across; I wonder if I could make a higher resolution version? It can't be wider (our eyes will only spread so far) but those blocks are kind of large.