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) ABe 4/6 puzzle, based on an original photo by Reinhard Reiss (photo copyright Reinhard Reiss -- used with permission). Photographed at Appenzell, Switzerland, December 18, 2018. Click here for more information about this photograph