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 & Pittsburgh SD40-3 puzzle, based on an original photo by Harry Gaydosz (photo copyright Harry Gaydosz -- used with permission). Photographed at Fombell, Pennsylvania, October 29, 2014. Click here for more information about this photograph