On the East pillar of the boulder next to Les Trois Pitons, to the opposite of Intouchables Pensées and Chemin de la Postérité (black n°18). Standing start without the boulders on the ground, climb the pillar right hand and mantle up at the top.
NB: due to the height of the boulder (more than 8m) and the stones on the ground, this problem is very expo. Moreover, working out the moves toprope requires a certain experience of self-belaying...