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.

Canadian National Railway Dash 9-44CWL puzzle, based on an original photo by Eric Burnham (photo copyright Eric Burnham -- used with permission). Photographed at Chicago, Illinois, October 11, 2015. Click here for more information about this photograph