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.

Iowa Interstate Railroad ES44AC puzzle, based on an original photo by FJ Grizel (photo copyright FJ Grizel -- used with permission). Photographed at Coralville, Iowa, November 4, 2015. Click here for more information about this photograph