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 8-40B puzzle, based on an original photo by Todd M. (photo copyright Todd M. -- used with permission). Photographed at Iron, Minnesota, October 27, 2017. Click here for more information about this photograph