Object: swap wagons A and B and return the locomotive to original position.
 
The locomotive can push or pull only one wagon at a time. To push a wagon, move the locomotive. To simulate the pulling of the wagon by the locomotive, move a wagon into the direction of the locomotive. Of course this only works when the locomotive is actually next to the wagon.
 
In order to simplify the game, the shunt is not a position for the locomotive or for a wagon; this position is skipped when moving the pieces around. You can click the shunt to switch it.
 
You win if you manage to swap the positions of the two wagons and return the locomotive to its original position.
 
 
More freeware as well as real puzzles and games at my homepage http://karl.kiwi.gen.nz.