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.

Kansas City Southern Railway SD70ACe puzzle, based on an original photo by Joe Blackwell (photo copyright Joe Blackwell -- used with permission). Photographed at Palmer Lake, Colorado, December, 2018. Click here for more information about this photograph