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.

Potomac Eagle Scenic Railway GP9u puzzle, based on an original photo by Ted Grumbine (photo copyright Ted Grumbine -- used with permission). Photographed at Springfield, West Virginia, September 27, 2020. Click here for more information about this photograph