Bollinger´s project goes down

We got an email from Florent Wolff EscaladeMag. This Monday, Pierre Bollinger dispatched an old project in Kronthal, a big crag near Strasbourg in France. He thinks it is the hardest route he´s ever climbed. About the grade, despite he is still reluctant, he thinks on 8c+/9a. No stranger to hard routes Pierre has already climbed for example Hugh, 9a. There´s a video og Pierre trying the route here.