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.

Chicago & North Western Railroad SD40-2 puzzle, based on an original photo by Paul F. De Luca (photo copyright Paul F. De Luca -- used with permission). Photographed at Boone, Iowa, August 24, 1996. Click here for more information about this photograph