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.

BNSF Railway GP38-2 puzzle, based on an original photo by Robert King (photo copyright Robert King -- used with permission). Photographed at Philadelphia, Pennsylvania, May 8, 2014. Click here for more information about this photograph