When I was around 10 or so, my father created a board game featuring a goods train on a sheet of chart paper using pencil sketch markings for the railway track, a shed, siding, etc. There were wagons and an engine cut out in shapes which were the moveable pieces. The goal was to figure how the goods train will deliver (or pick up) two bogies/wagons from different sheds and “move on”. Every time a guest came home, this game was produced (some posh cousins hadn’t even seen a goods train and were baffled by the possibility of it). The only condition was that none of the wagons could be “loose shunted” and so the trick was to figure out how the engine could leave them at their respective sheds and be free.