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.

Russian Railways TU8 puzzle, based on an original photo by Dmitry Lapkin (photo copyright Dmitry Lapkin -- used with permission). Photographed at Guamka, Russia, April 30, 2017. Click here for more information about this photograph