If you land on the wrong square you go up or down, either way you could end up where you started from.
The people that took this game out of the bag didn't realise what sort of game it is.
For children its fine, however its not a game for adults.
Perhaps adults should have chosen Chess because you can plan a strategy for the end game rather than rely on the roll of dice.
The roll of the dice ensures that the unforeseen will always happen.
The blind leading the blind.