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.

Appenzeller Bahnen (Switzerland) BDe 4/4 puzzle, based on an original photo by Brian Stephenson (photo copyright Brian Stephenson -- used with permission). Photographed at Appenzell, Switzerland, July 4, 2017. Click here for more information about this photograph