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.

Norfolk Southern ES44AC puzzle, based on an original photo by Michael Harding (photo copyright Michael Harding -- used with permission). Photographed at Van Buren, Ohio, July 16, 2014. Click here for more information about this photograph