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.

San Francisco Municipal Railway PCC puzzle, based on an original photo by Joel Hinkhouse (photo copyright Joel Hinkhouse -- used with permission). Photographed at San Francisco, California, July 16, 2022. Click here for more information about this photograph