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.

Russian Railways 4-8-4 puzzle, based on an original photo by Parker Wilson (photo copyright Parker Wilson -- used with permission). Photographed at Shcherbinka, Russia, August 24, 2019. Click here for more information about this photograph