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.

South Carolina Central Railroad GP7u puzzle, based on an original photo by Nick McLean (photo copyright Nick McLean -- used with permission). Photographed at Sanford, North Carolina, March 4, 2016. Click here for more information about this photograph