Powerful moves in big, good holds in the roof lead up to the almost perfectly vertical face of this tabletop-shaped block. Finding your individual way through the crack up to the top ledge is the crux.
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.