I loved the look of the crazy shaped rock and it was a pleasure to climb it! You start squatting down on the big slopey foothold and walk your way up. After you will make your way to the top hold with some high heel action.
Rain sucks, but broken holds suck even more. Remember, never climb on wet rock in Fontainebleau.
The sandstone becomes brittle, and pulling on it will ruin classic problems. Drying it doesn't help, because it's still wet and weak inside.
All you can do is wait for better conditions.