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.

CSX Transportation (CSXT) ES44AC puzzle, based on an original photo by Sid Vaught (photo copyright Sid Vaught -- used with permission). Photographed at Fostoria, Ohio, May 25, 2014. Click here for more information about this photograph