Check out Try Eternity II Online - Eternity II
I solved it in 5 mins 40 secs. See how fast you can do it.
But what i really want to know is what the chances of finding a solution are, and how many solutions there could be.
The "proper" game has 256 square pieces, i'm guessing on a board of 16 x 16 pieces, and each square piece has 4 triangles in them, with a different pattern.
Please check the link out to see what i mean.