You can load it over any BTX server, example Norbert Kehrer's BTX server. If you use Norbert Kehrer's BTX server, 1 - copy btx/sokoban file into btx_server/pages, 2 - connect PC to mupid modem (24 pin ...

The mupid was an early home computer and terminal for the Austrian Post's BTX (Bildschirmtext) service, a variant of Videotex. The BTX system has been switched off, so the hardware is only usable with ...