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.

Providence and Worcester Railroad GP38-2 puzzle, based on an original photo by Tom Nelligan (photo copyright Tom Nelligan -- used with permission). Photographed at Holden, Massachusetts, July 29, 1984. Click here for more information about this photograph