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.

Allegheny Valley Railroad SD60M puzzle, based on an original photo by Bill Bores (photo copyright Bill Bores -- used with permission). Photographed at Finleyville, Pennsylvania, July 8, 2021. Click here for more information about this photograph