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.

Canadian National Railway GP40-2LW puzzle, based on an original photo by Nick Hart (photo copyright Nick Hart -- used with permission). Photographed at Willow Springs, Illinois, September 30, 2019. Click here for more information about this photograph