Well lets see, where are they? are there other people? are there other scp's? well we know Peanut can see otherwise he couldn't see his victims, shy guys never blinks... so this might be odd, because shy guy can take almost as much damage as SCP-682 so peanut could keep breaking his bones while he was in his emotional fit once he was seen, but if peanut missed a SINGLE break he would be destroyed but if peanut broke all his bones in his arms and legs he could get away... so on flat terrain Shy guy would probably win.