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.

Union Pacific SD70ACe-T4 puzzle, based on an original photo by Matthew Griffin (photo copyright Matthew Griffin -- used with permission). Photographed at Ontario, California, January 29, 2018. Click here for more information about this photograph