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 ES44AC puzzle, based on an original photo by Bob Avery (photo copyright Bob Avery -- used with permission). Photographed at Flagstaff, Arizona, October 23, 2018. Click here for more information about this photograph