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.

BNSF Railway SD75I puzzle, based on an original photo by Christopher Blaszczyk (photo copyright Christopher Blaszczyk -- used with permission). Photographed at Bogota, New Jersey, September 7, 2013. Click here for more information about this photograph