-This grabs a screen image, carves it up into a jigsaw puzzle,
-shuffles it, and then solves the puzzle. This works especially well
-when you feed it an external video signal instead of letting it grab
-the screen image (actually, I guess this is generally true...) When
-it is grabbing a video image, it is sometimes pretty hard to guess
-what the image is going to look like once the puzzle is solved.
-
-Written by Jamie Zawinski; 1998.
+This carves an image up into a jigsaw puzzle, shuffles it, and solves it.
+
+http://en.wikipedia.org/wiki/Jigsaw_puzzle
+http://en.wikipedia.org/wiki/Tessellation
+
+Written by Jamie Zawinski; 1997.