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.

Norfolk Southern SD45-2 puzzle, based on an original photo by Jason Bialecki (photo copyright Jason Bialecki -- used with permission). Photographed at Sayreville, New Jersey, March 23, 2016. Click here for more information about this photograph