Arrange the nine pieces to create an island containing
a closed and continuous network of curved railroad track
and roundabouts. No track runs off the edge of the island,
there are no dead-ends, and there are no holes in the
middle of the island.

Instructions:
1. Print these nine pieces on this page.
2. Cut them out, and form the island.

Solution:
I've been told by some of you anonymous mathematicians 
that you don't bother with these puzzles if I include the 
solution.  So, no solution was included.