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 SD75I puzzle, based on an original photo by Chase Gunnoe (photo copyright Chase Gunnoe -- used with permission). Photographed at South Charleston, West Virginia, May 4, 2021. Click here for more information about this photograph