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.

RhB - Rhätische Bahn Ge4/4i puzzle, based on an original photo by James Stearn (photo copyright James Stearn -- used with permission). Photographed at Bever, Switzerland, August 10, 2020. Click here for more information about this photograph