We didn't have any trouble with other models, but with the terrain, we eventually decided to use the "detours around pieces, moving as directly as possible towards the Belle." At times, this made a model shuffle two inches to the side, out from behind a building, then 2" towards the Belle on a diagonal. Since Push does not read "directly towards," we thought that this would be an ok interpretation. Getting different answers, though...I'm not sure which is correct.