Subj:     Roundabout (S407b)
          by Adrian Fisher
          From: World Puzzle Championship 2000 
          At: http://www.mathpuzzle.com/WPC2000.html

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.

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

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.