I avoided to add one, because I tried to not make it unnecessarily long or that could insult people's intelligence. Despite that, I see how some could get a bit confused, so here are the rules:
-It's a game by turns (in which you play against a simple AI).
-Each turn you choose between trying to take a new face of dice or use the ones that you have to move foward (the total movement is equal to the sum of the faces numbers).
-You win if you reach the end before your opponent.

(Thanks for trying it and commenting)