On the boulder with a blue number 2 on the ridge above Multijeux and Lou-Lou. 80m to the north of Tout à Fait and 70m to the west of Nyctalope. Sit start in the back and to the right of the roof with the ledge, climb the roof with the right arete, and exit in the centre of the wall as for Nono.
NB: a sbig stone has been moved or has fallen, the absence of this stone may change the methods and the difficulty, in fact the name "Contrainte" was linked to the presence of this stone which required certain moves.