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.

CSX Transportation (CSXT) SD60M puzzle, based on an original photo by Patrick Treadaway (photo copyright Patrick Treadaway -- used with permission). Photographed at Hamlet, North Carolina, March 21, 2015. Click here for more information about this photograph