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 GP50 puzzle, based on an original photo by Greg Mross (photo copyright Greg Mross -- used with permission). Photographed at Junction City, Kentucky, May, 1987. Click here for more information about this photograph