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) SD70MAC puzzle, based on an original photo by Kerry Douglas (photo copyright Kerry Douglas -- used with permission). Photographed at New Hope, Tennessee, January 12, 2020. Click here for more information about this photograph