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.

Copper Basin Railway GP39-2 puzzle, based on an original photo by Paul Sykes (photo copyright Paul Sykes -- used with permission). Photographed at Hayden, Arizona, September 29, 2017. Click here for more information about this photograph