This boulder is a lot of fun! You start with an edge for your left and a big sidepull for the right hand. The trick in this boulder is using your foot cammed in the crack. You really have to find the sweet spot to be able to move your right hand up.
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.