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 GP38-2 puzzle, based on an original photo by Nathan Sloski (photo copyright Nathan Sloski -- used with permission). Photographed at Cobleskill, New York, March 16, 2020. Click here for more information about this photograph