To maximize your puzzling space, click on the Maximize button in the lower right corner of the puzzle screen for fullscreen mode. Click on it again to return to normal mode.

For more tips, see the Online Puzzle Tips page.

Amtrak GG-1 puzzle, based on an original photo by northamericabyrail.info (photo copyright northamericabyrail.info -- used with permission). Photographed at Syracuse, New York, October 11, 2013. Click here for more information about this photograph