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.

Buffalo Southern Railroad S4 puzzle, based on an original photo by J.A. Muscarella (photo copyright J.A. Muscarella -- used with permission). Photographed at Buffalo, New York, June 26, 2017. Click here for more information about this photograph